Mercruiser IO Outdrive Parts

I/O MERCRUISER - Gaskets/Drive System

PKG. OF 2

PKG. OF 3

PKG. OF 5

PKG. OF 5

18-4267 18-4267-9 SHIFT SHAFT WASHER Replaces: 12-29395

18-0681 18-0681-9 WASHER Replaces: 12-32834PKG OF 2

18-0203 18-0203-9 BELL HOUSING WASHER Replaces: 12-35935 All Mercruiser Stern drives 1963-1998PKG OF 5

18-2316 18-2316-9 SHIFT SHAFT WASHER Replaces: 12-77674Used over 18-2349 sleeve For: Ratios 1.47, 1.62, 1.81 & 1.94.For: Gen II (1998 & up), (0L100040 & up) 1/8" Thick PKG OF 2

18-0318 WASHER Replaces: 12-815472

18-4270 18-4270-9 WASHER Replaces: 12-36001

18-2340 18-2340-9 SHIFT SHAFT WASHER Replaces: 12-31266For: #1R/MR (1/16" Thick) PKG OF 5

18-2343 18-2343-9 PINION NUT WASHER Replaces: 12-92721For: MR/Alpha/Gen II PKG OF 5

SCREWSPart # 18-2361 18-2361-9 18-3197 18-3230 18-3231 Description(PKG. OF 2)

O.E. #

Lower Unit Mounting Screw 10-30206 Water Pick-Up Insert Screw 10-76156 Gear Housing To Drive Shaft Housing Screw 10-816601 Upper Drive Shaft Top Cover Screw 10-98794

18-3721 18-3721-9 NUT Replaces: 11-13439-1, 11-859116For: MR/Alpha

18-2344 18-2344-9 RETAINING NUT Replaces: 11-45812Use with 18-3198

18-3236 HOUSING ALIGNMENT BUSHING Replaces: 23-32632For: #1R/MR/Alpha

18-4272 WELCH PLUG Replaces: 19-32652

18-4273 WELCH PLUG Replaces: 19-42682

18-2140 ENGINE MOUNT BOLT KITFor: Mercruiser I

18-2141 ENGINE MOUNT BOLT KIT Replaces: 10-97934A1For: R/MR/Alpha I/ Gen II/Bravo

18-3728 LOCK NUT Replaces: 11-99298, 11-863332

18-2193 REAR ENGINE MOUNT Replaces: 99297A1 18-3729 MOTOR MOUNT BOLT Replaces: 10-97934 Priced per Package

For 120/140 HP S/N 6229717 & UP; All 224 CID Blocks; All 898, 200, 228, 230, 260, 300 & 320 HP; All 350-454 Magnums

614

I/O MERCRUISER - Drive System

18-2614D

18-2617D

18-2614 OUTDRIVE GASKET SET 1967-1982 Replaces: 27-64818A1, 27-64818T4, 27-64818Q4Part # 18-2820 18-2840 18-7153 18-7170 CONTAINS Description O.E. # Drive Shaft Housing to Bell Housing Gasket 27-64818 Bell Housing Gasket 27-35982 O-Ring 25-25439 O-Ring 25-33504 Qty. 1 1 2 1

18-2615 OUTDRIVE GASKET SET (Bravo Unit) Replaces: 16755A1, 16755Q1, 16755T1For: All Bravo Part # 18-2516 18-7198 18-7153 18-7168 18-7105 18-7117 CONTAINS Description O.E. # Seal 16755 O-Ring 25-45710 O-Ring 25-25439 O-Ring 25-48171 O-Ring 25-62705 O-Ring 25-35027 Qty. 1 1 2 2 1 1

18-2617 OUTDRIVE GASKET SET Old Style Replaces: 27-35996A1For: IA/IB/IC and EZ Shift (1964-1966) CONTAINS Part # Description 18-2556 Drive Shaft Housing to Bell Housing Gasket 18-2840 Bell Housing Gasket 18-7153 O-Ring 18-7170 O-Ring O.E. # 27-35996 27-35982 25-25439 25-33504

18-2619-1D

18-2619-1 OUTDRIVE GASKET SET Replaces: 27-64818A3, 27-94996Q2, 27-94996T2Part # 18-2743 18-2840 18-7153 18-7170 18-7117

For: R, MR, Alpha I, Alpha Gen II (1983-Newer)

CONTAINS Description Drive Shaft Housing to Bell Housing Gasket Bell Housing Gasket O-Ring O-Ring O-RingBeginning Serial No.

O.E. # 27-94996-2 27-35982 25-25439 25-33504 25-35027

18-2620 OUTDRIVE GASKET SET Replaces: 27-54014A1, Q1For: E, H, TR, TRS Part # 18-7175 18-2847

CONTAINS Description O-Ring Drive Shaft Housing to Bell Housing GasketBell Housing Rubber Gasket

O.E. No. 25-62817 27-54014

Items ending in "D" are Display Packaged - Regular number is Non-DisplayStern Drive Model Ending Serial No. Bell Housing Gasket Bell Housing O-Ring U-Joint O-Ring (2 Required) Gasket Set

I IA IB IC II TR 120 120 120 140 140 140 160 165 170 170 185 185 190 190 200 200 215 E/H 225 228 228 228 230 230 233 250 255 TRS 260 260 260 280 TRS 470 470 470 485 488 488 888 898 898 898 R/MR/Alpha One R/MRAlpha One Bravo (I/II) TR-TRS

1534570 1684188 1684633 1685240 3377316 2062141 6225577 6225577 2062141 6225577 6225577 2065190 2763442 6225577 6225577 6225577 6225577 6225577 6225577 6225577 6225577 2782203 3856268 4782330 6225577 6225577 6225577 6225577 4200500 4791300 3377316 4898730 6225577 6225577 4203750 4208730 6225577 6225577 4893835 6225577 6225577 3106717 4782330 6225577 6225577 6225577 6225577 B664190 4794900

1684187 2062140 2062140 2065189 4794899 6225576 UP UP 6225576 UP UP 2763441 UP UP UP UP UP UP UP UP UP 2915034 4200499 6225576 UP UP UP UP UP 4898729 4203749 6225576 UP UP 4895399 6225576 UP UP UP UP UP UP 6225576 UP UP UP up UP UP

18-2556 18-2556 18-2556 18-2847 18-2820 18-2743 18-2743 18-2820 18-2743 18-2743 18-2820 18-2820 18-2743 18-2743 18-2743 18-2743 18-2743 18-2743 18-2743 18-2743 18-2847 18-2820 18-2820 18-2743 18-2743 18-2743 18-2743 18-2820 18-2820 18-2847 18-2820 18-2743 18-2743 18-2847 18-2820 18-2743 18-2743 18-2820 18-2743 18-2743 18-2820 18-2820 18-2743 18-2743 18-2743 18-2743 18-2516 18-2847

18-7170 18-7170 18-7170 18-7170 18-7175 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7175 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7175 18-7170 18-7170 18-7170 18-7175 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7170 18-7175

18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2840 18-2847

18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153 18-7153

18-2617 18-2617 18-2617 18-2620 18-2614 18-2619-1 18-2619-1 18-2614 18-2619-1 18-2619-1 18-2614 18-2614 18-2619-1 18-2619-1 18-2619-1 18-2619-1 18-2619-1 18-2619-1 18-2619-1 18-2619-1 18-2620 18-2614 18-2614 18-2619-1 18-2619-1 18-2619-1 18-2619-1 18-2614 18-2614 18-2620 18-2614 18-2619-1 18-2619-1 18-2620 18-2614 18-2619-1 18-2619-1 18-2614 18-2619-1 18-2619-1 18-2614 18-2614 18-2619-1 18-2619-1 18-2619-1 18-2619-1 18-2615 18-2620 615

Hydraulic Shift Only

Borg Warner Transmission Only

For housing with oil reservoir check valve

616

I/O MERCRUISER - I/I-R/MR/ALPHA ONE Drive Shaft Housing Components (Typical)

SEE PAGES 626-628 FOR COMPLETE REPLACEMENT HOUSINGS

I/O MERCRUISER - I/I-R/MR/ALPHA ONE Drive Shaft Housing Components (Typical)

Description 1. 2. 3. 4. 5. 6. 7. 8. 9./10.

O.E. #

Part # N/A 18-3231 18-2381 18-2283 18-1165 18-2179

Upper Gear Housing......................................................................................... Screw, Top Cover .................................................................................. 10-98794 Top Cover .............................................................................................. 94998A2 Shim, Bearing Cup to Top Cover ......................................................15-45691A1 Tapered Roller Bearing .....................................................................31-61100A1 Upper Drive Shaft ................................................................................. 45-55796 Upper Unit Gear Set 1.5:1........................................................................ 43-18410A2, 46-18411A2 Rebuild Kit .................................................................................................. 1.65:1............................................................................................43-45814A5 Rebuild Kit .................................................................................................. 1.84:1............................................................................................43-75325A3 Rebuild Kit .................................................................................................. 1.98:1............................................................................................43-55778A3 Rebuild Kit ..................................................................................................

O-Ring, Top Cover ................................................................................ 25-32546 * 18-7161

O-Ring, Upper Drive Shaft.................................................................... 25-55801 * 18-7445 18-2201 18-2256 18-2203 18-2257 18-2204 18-2258 18-2205 18-2259 18-1161 18-2293

11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21.

Tapered Roller Bearing .....................................................................31-35990A1 Shim Kit, Bearing Cup to Drive Shaft Housing .................................15-36178A1

Oil Seal, Upper Drive Shaft Housing .................................................... 26-32511 * 18-2049 Oil Seal, Lower Drive Shaft Housing .................................................... 26-96503 * 18-2056 Vent Screw .......................................................................................10-79953A2 Plug, Trim Tab Hole ............................................................................... 19-47579 Stud, Drive Shaft Housing (4) ........................................................................... Bushing, Drive Shaft Housing............................................................... 23-32632 Nut, Gear Housing Stud (3) ............................................................... 11-13439-1 Welch Plug, Drive Shaft Housing (7/8" OD) .......................................................................................... 19-32652 (1 1/4" OD) ....................................................................................... 19-42682 18-4272 18-4273 N/A 18-3713 18-3712 18-2292 18-1160 18-1160 18-1160 18-0577 18-4296 18-3752 18-2125 18-2104 18-2128 18-2146 18-9218 18-3229 NSS 18-3220 18-2244 18-3232 N/A 18-3236 18-2362 Gasket, Gear Housing Drain Screw..................................... 12-19183, 12-20260 * 18-2945

22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44.

Pipe Plug, Water Pocket .................................................................................. Nut, Drive Gear to U-Joint .................................................................... 11-22339 Washer, Drive Gear to U-Joint Nut ....................................................... 12-45810 Shim Kit, Drive Gear .........................................................................15-35980A1 Bearing Kit ............................................................................... 31-35988A2, A12 Spacer (comes with kit) ........................................................... 31-35988A2, A12 Roller Bearing (comes with kit) ................................................ 31-35988A2, A12 Carrier Assembly Oil Seal ..................................................................... 66081A2 Ring, Roller Bearing Retainer .................................................................... 35983 Retaining Nut Drive Shaft Housing ....................................................... 816811-1 Yoke Assembly ........................................................................................ 46020T Heavy Duty U-Joint................................................................................ 75832A2 Center Socket .......................................................................................... 39383T U-Joint Shaft Coupler ............................................................................ 59830A1 Drive Shaft ............................................................................................. 59830A5 Screw, Water Pocket Cover to Drive Shaft Housing ............................. 10-28668 Water Pocket Cover .......................................................................................... Water Tube ........................................................................................... 32-54236

Oil Seal ................................................................................................. 26-64893 * 18-2003 O-Ring .................................................................................................. 25-70937 * 18-7169

O-Ring .................................................................................................. 25-25439 * 18-7153 Gasket, Water Pocket Cover ................................................................. 27-55810 * 18-0894 Bushing, Water Pump Housing............................................................. 26-38970 * 18-3110

Items 41, 42, 43 and 44 make up 18-3219 Water Housing Kit

* Included in Seal Kit 18-2648 (Not Pictured) N/A Not Available NSS Not Sold Separately

617

618

I/O MERCRUISER - ALPHA ONE/GEN II Drive Shaft Housing Components


I/O MERCRUISER - ALPHA ONE/GEN II Drive Shaft Housing Components

Description 1 2 3 4 5 6a 6b 7 8 9 10a 10b 11 11a 11b 11c 12a 12b 13a 13b 14 15 16 17 18 19 19a 20 20a 21 22 23

O.E. #

Part # 18-2411 18-2244 * 18-2945 N/A * 18-2056 NSS NSS 18-3221 NSS 18-6402 18-2128 NSS 18-2174 18-2097 NSS 18-2146 NSS 18-2125 NSS 18-3752 18-4296 * 18-7169 18-0577 18-2003 18-1160 18-1182 18-1160 NSS 18-2292 18-2296

23a

24 24a 25 26 27 28 29 30 30a 30b 31 31a 31b 32 33 34 34a 35 36 37 38 39 40 41 42

Drive Shaft Housing (OL100009 & UP) ........................................................... 1547-861063A 4 Screw...................................................................................................................... 10-79953A2 Washer ...................................................................................................... 12-19183, 12-20260 Filler Wall ................................................................................................................................ Oil Seal ....................................................................................................................... 26-66302 Wear Pad, Port ...............................................................................................................814386 Wear Pad, Std.................................................................................................................814387 Water Tube ............................................................................................................... 32-860220 Seal ............................................................................................................................ 26-88397 GKN Series U-joint assy. .......................................................................................... 864281A 2 Socket, Center (old design) ........................................................................................... 39383T Socket, Center- GKN series ................................................................................................... Cross and Bearing D469859 - F679999 (old design) ............................................................................. 75832A2 F680000- OK999999 (old design- permalube) ...................................................... 805536A2 OL100009 & UP (GKN Series) ........................................................................................... Yoke, Coupling End ..................................................................................................... 59830A1 Yoke, Coupling End (GKN Series) .......................................................................................... Yoke, Gear End.............................................................................................................. 46020T Yoke, Gear End (GKN Series) ................................................................................................ Retaining Nut .............................................................................................................. 816811-1 Ring ..................................................................................................................................35983 O-Ring ........................................................................................................................ 25-70937 Carrier Assembly (Set) ................................................................................................ 66081A2 Oil Seal ....................................................................................................................... 26-68493 Roller Bearing Kit (D469859 - K999999) ........................................................31-35988A2, A12 Roller Bearing Kit (OL100009 & UP) ................................................................... 31-30894A 15 Cup Spacer (Included with 18-1160) ..............................................................31-35988A2, A12 Cup Spacer (Included with 18-1182) ................................................................... 23-853649A 1 Shim ....................................................................................................................... 15-35980A1 Shim ........................................................................................................................... 15-71013 Upper Unit Gear Set Alpha One Coverage (6225577 & UP) Alpha One Gen II coverage (0D469859-0K999999) 1.5:1/ 1.47:1 Gear Set (tooth count 20/22) ............................... 43-18410A2, 43-18411A2 Std.Rebuild Kit ..................................................................................................... 43-803116T 1 Complete Service Kit ........................................................................................... 43-803102T 1 1.65:1/ 1.62:1 Gear Set (tooth count 24/24) ................................................... 43-45814A5 Std. Rebuild Kit .................................................................................................... 43-803112T 1 Complete Service Kit ........................................................................................... 43-803119T 1 1.84:1/ 1.81:1 Gear Set (tooth count 17/19) ................................................... 43-75325A3 Std. Rebuild Kit .................................................................................................... 43-803114T 1 Complete Service Kit .......................................................................................... 43-803120 T 1 1.98:1/ 1.94:1 Gear Set (tooth count 20/24) ................................................... 43-55778A3 Std. Rebuild Kit .................................................................................................... 43-803101T 1 Complete Service Kit ........................................................................................... 43-803118T 1 Upper Unit Gear Set Alpha One Gen II coverage (0L100009 & UP) 1.47:1 Gear Set (tooth count 20/22) ............................................................. 43-853641A2 Std. Rebuild Kit ....................................................................................................................... Complete Service Kit ........................................................................................... 43-803103T 1 1.62:1 & 2.0:1 Gear Set (tooth count 24/24) ................................................. 43-853640A2 Std. Rebuild Kit ....................................................................................................................... Complete Service Kit ........................................................................................... 43-803104T 1 1.81:1 Gear Set (tooth count 17/19) ............................................................. 43-853643A2 Std. Rebuild Kit ....................................................................................................................... Complete Service Kit ........................................................................................... 43-803105T 1 1.94 & 2.4:1 Gear Set (tooth count 20/24) .................................................... 43-853642A2 Std. Rebuild Kit ....................................................................................................................... Complete Service Kit ........................................................................................... 43-803106T 1 Roller Bearing (All but 1.47:1 ratio) ....................................................................... 31-35990A 1 Roller Bearing (1.47:1 Ratio only) ......................................................................... 31-32573A 1 Washer ....................................................................................................................... 12-45810 Nut .............................................................................................................................. 11-22339 Shim ....................................................................................................................... 15-36178A1 Plug ................................................................................................................................861738 Drive Shaft, Upper (F680000 & Up) ........................................................................ 45-55796-1 Bearing Assembly F680000 & UP (small bearing) ........................................................................... 31-32575A1 D494569 - F679999 (large bearing) ................................................................... 31-61100A1 Shim Set D494569 -F679999............................................................................................. 15-45691A1 F680000 & UP .................................................................................................... 15-32563A1 O-Ring ........................................................................................................................ 25-32546 Cover Assembly, Top (F680000 & UP) ...................................................................... 828692A1 O-Ring (2 per)............................................................................................................. 25-25439 O-Ring ........................................................................................................................ 25-35027 Screw.......................................................................................................................... 10-98794 Check Valve Kit, Oil Passage ................................................................................ 24-17997A1 Oil Seal (Included in kit).......................................................................................................... Ball (Included in kit) .............................................................................................................. Spring (Included in kit) ............................................................................................................ Anodic Plate Assembly .............................................................................................. 821629A1 Lockwasher ............................................................................................................................ Screw......................................................................................................................................

18-2201 18-2256 18-2358 18-2203 18-2257 18-2364 18-2204 18-2258 18-2365 18-2205 18-2259 18-2363 18-6351 NA 18-6350 NA 18-6353 NA 18-6352 NA 18-1161 18-1142 18-3712 18-3713 18-2293 NSS 18-2324 18-1179 18-1165 18-2283 18-2282 * 18-7161 18-2382 * 18-7153 18-7117 18-3231 18-2715 KIT NSS NSS NSS 18-6080 N/A N/A

* Included in Seal Kit 18-2644 Sold in sets only. For proper gear ratio selection, consult a service manual. N/A Not Available NSS Not Sold Separately1547-861063A 12 18-2416, Complete Gen II gearcase assy. OL100009 & UP Listing: 1547-861063A 10 18-2417, 1547-861063A 8.. 18-2418, 1547-861063A 6.. 18-2419 619

I/O MERCRUISER - MR/ALPHA Gear Housing Components

620


I/O MERCRUISER - MR/ALPHA Gear Housing Components

Description 1. 2. 3. 4. 5. 6. 7. 8. 9.

O.E. #

Part # 18-2401 18-3109

Description

O.E. #

Part # 18-3719 18-4267 18-2340

Gear Housing ............................ 1623-8951A37 Water Tube Guide .............................. 23-29804

37. Pinion Nut .......................................... 11-35921 38. Shift Shaft Washer ............................. 12-29395 39. Washer, Rubber Shift Shaft Bushing ........................ 12-31266

Bushing/Water Pump Housing .......................................... 26-38970 * 18-3110 O-Ring, Upper Drive Shaft ..................................... 25-30613 * 18-7158 Slinger ............................................... 25-30271 Stainless Steel Locknuts (3) ................................... 11-45592 Washer (3) ......................................... 12-36001 Screw, Water Pump Body to Water Pump Base ......................... Upper Pump Housing .................... 46-96148A1 18-7426 18-3723 18-4270 N/A 18-3116 18-3114 18-3017

40. Shift Bushing ................................. 23-30617A2 * 18-2154 41. O-Ring, Shift Shaft Bushing .............. 25-25439 * 18-7153 42. Washer, Lower Shift Shaft ............................. 43. Retaining Clip, Shift Shaft.............................. 44. Stainless Steel Shift Shaft ................... 77481-1 45. Pin, Shift Crank - Gear Housing .................... 46. Shift Crank ...............................................76865 47. Shift Spool Assembly........................ 818349A1 48. Cotter Pin & Sleeve ................................... NSS 49. Retainer ..................................................... NSS 50. Washers .................................................... NSS 51. Spring ........................................................ NSS 52. Shift Spool ................................................. NSS 53. Clutch Shaft ............................................... NSS 54. Shim (s) Forward Gear .................. 15-47397A1 55. Tapered Roller Bearing Set ........... 31-35928A1 56. Inner Bearing, Forward Gear ............. 31-30895 56A. Retaining Clip, Inner Bearing......................... 57. Lower Alpha Gear Set (Forward Gear/Pinion) ................. 43-17064A2, 43-17064A3, 43-42934 18-2206 18-2348 18-2202 18-2357 18-2166 58. Spring, Retainer - Cross Pin.......................... 59. Sliding Clutch .................................... 52-66063 60. Cross Pin, Clutch to Actuating Shaft .............................. 24-30893 61. Propeller Shaft ............... 44-66060, 44-66060-3 62. Lower Alpha Gear Set (Reverse Gear-NSS) ................. 43-17064A2, 43-17064A3, 43-42934 62A.Spacer, Reverse Gear...................... 23-824108 63. Thrust Ring, Bearing Carrier ............... 68100-1 64. Ball Bearing ................................... 30-88957A1 66. Needle Roller Bearing ....................... 31-30956 67. Bearing Carrier ................................ 73020A-14 68. Key, Locating - Bearing Carrier...................... 70. Tab Washer........................................ 14-18323 71. Spanner Nut ............................................79448 72. Thrust Washer .............................13171, 77987 73. Continuity Washer ......................................... 74. Brass Castle Washer ..................... 12-31211A2 75. Tab Washer..................... 14-31210, 14-816629 76. Prop Nut ............................................ 11-52707 18-2206 N/A 18-2342 18-1155 18-1158 18-2191 NSS 18-2298 18-3751 18-4220 N/A 18-3714 18-3200 18-3700 NSS NSS 18-2150 N/A 18-2130 18-2286 18-2285 18-1159 18-1157

10. Insert Cup ................................................48752 11. Impeller .............................................. 47-89984

12. Gasket, Upper Water Pump to Wear Plate .................... 27-85609-1 * 18-2915 13. Impeller Plate ..........................................32435 14. Water Pump Base ......................... 46-44292A3 18-3117 18-3420

15. Oil Seals, Water Pump ...................... 26-89238 * 18-2014 26-16977 * 18-2013 16. O-Ring, Water Pump ......................... 25-90011 * 18-7176 17. Gasket, Water Pump Base to Gear Housing ............... 27-42631-1 * 18-2919 18. Retainer, Drive Shaft Bearing ................824519 19. Tapered Roller Bearing, Drive Shaft ................................. 31-36387A1 20. Shim (s), Lower Drive Shaft Bearing ............................. 15-42637A1 21. Drive Key, Water Pump Impeller .................... 22. Drive Shaft ......................................... 45-42634 23. Insert (2), Water Pickup ....................... 93423-1 24. Screw, Insert to Gear Housing ................................. 10-76156 25. Nut, Insert Screw ............................... 11-45812 26. Screw, Trim Tab to Gear Housing .................. 27. Dowel Pin, Gear Housing to Drive Shaft Housing ................... 10-30720 28. Trim Tab .............................................. 31640A1 29. Screw, Gear Housing to Drive Shaft Housing ....................... 10-30206 30. Nut (2), Gear Housing to Drive Shaft Housing........................ 11-13439-1 18-2346 18-1143 18-2294 N/A 18-2180 18-3199 18-3197 18-2344 NSS 18-3226 18-6011 18-2361 18-2362

65. O-Ring, Bearing Carrier..................... 25-31534 * 18-7159

69. Oil Seals, Bearing Carrier.................. 26-76868 * 18-2002

31. Oil Passage Seal ............................... 26-45577 * 18-2944 32. Gasket, Gear Housing Drain Screw .................. 12-19183, 12-20260 * 18-2945 33. Plug, Oil Fill/Drain .......................... 10-79953A2 34. Pinion Bearing ............................... 31-42647A1 35. Lower Alpha Gear Set (Pinion Gear) ............................ 43-17064A2, 43-17064A3, 43-42934 36. Anti-Galling Washer Pinion Gear .................................... 22-92721 18-2206 18-2343 18-2244 18-1117

77. Gasket, Wear Plate to Water Pump Base ................................. 27-85608-1 * 18-2914

Pieces not sold separately, must be purchased as 18-2286. Kit consists of figure numbers 48- 53

* Included in Seal Kit 18-2652 (Not Pictured) N/A Not Available NSS Not Sold Separately

621

I/O MERCRUISER - #1-R Gear Housing Components

622


I/O MERCRUISER - #1-R Gear Housing Components

Description 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41.

O.E. #

Part # 18-2402 18-3109 * 18-3110 * 18-7158 18-7426 18-3723 18-3722 18-4270 18-3226 N/A 18-3116 18-3114 18-3017 N/A * 18-2915 18-3117 * 18-2914 18-3227 18-3417 * 18-2026 * 18-2014 * 18-7176 * 18-7196 * 18-2826 N/A 18-1164 18-2295 18-2167 N/A 18-3197 18-2344 N/A N/A N/A N/A N/A N/A * 18-2944 18-2244 * 18-2945 N/A 18-2361

Description

O.E. #

Part #

Lower Gear Housing....................................... Water Tube Guide ............................... 23-29804 Bushing/Water Pump Housing ................................ 26-38970 O-Ring, Upper - Drive Shaft ............... 25-30613 Slinger ................................................ 25-30221 Stainless Steel Locknuts (1) (5/16 -24) ................................... 11-45592 Stainless Steel Locknuts (2) (1/4 -28) .................... 11-20361, 11-35888 Washer ............................................... 12-36001 Screw.................................................. 10-30720 Washer, Water Pump Body ............................ Upper Pump Housing ..................... 46-96148A1 Insert Cup .................................................48752 Impeller ............................................... 47-89984 Drive Key ........................................................ Gasket, Upper Water Pump to Wear Plate (upper) ....................... 27-85609-1 Impeller Plate ...........................................32435 Gasket, Upper Water Pump to Wear Plate (lower) ....................... 27-85608-1 Dowel Pin ........................................... 17-35973 Water Pump Base .......................... 46-57234A1 Oil Seal (upper) .................................. 26-16977 Oil Seal (lower) ................................... 26-89238 O-Ring (2.175 ID) ............................... 25-90011 O-Ring (2.1091 ID) ............................................. Gasket, Water Pump Base to Gear Housing ............................... 27-85610-1 Spring ............................................................. Tapered Roller Bearing................... 31-53079A1 Shim (s), Drive Shaft Bearing ......................................... 15-57007A Drive Shaft ...................................... 45-41939A1 Insert, Water Pickup ....................................... Screw, Insert to Gear Housing .......................................... 10-76156 Nut, Insert Screw ................................ 11-45812 Screw, Trim Tab to Gear Housing Gear Housing ............................... Dowel Pin, Gear Housing to .............................. Drive Shaft Housing .................................... Stud, Water Pump to Gear Housing (3 - 1/4") ........................................ Stud, Gear Housing to Drive .............................. Shaft Housing (1 - 31/32") .......................... Stud, Water Pump to Gear Housing (3 - 3/8") ........................................ Stud, Gear Housing to ...................................... Drive Shaft Housing (3 - 3/16") ................... Oil Passage Seal ................................ 26-45577 Plug, Oil Fill/Drain ........................... 10-79953A2 Gasket, Gear Housing Drain Screw ....................... 12-19183, 12-20260 Nut (2) Gear Housing to Drive Shaft Housing .................................... Screw, Gear Housing to Drive Shaft Housing ........................ 10-30206

42. Trim Tab ............................................... 31640A1 18-6011 43. Needle Roller Bearing .................... 31-92366A1 18-1150 44. Lower Unit Gear Set (pinion gear) ................................ 23-96084A4 18-2200 45. Pinion Nut ........................................... 11-35921 18-3719 46. Shift Shaft Washer .............................. 12-29395 18-4267 47. Washer, Rubber Shift Shaft Bushing ......................... 12-31266 18-2340 48. Oil Seal ............................................... 26-89236 * 18-2009 49. Shift Bushing .................................. 23-30617A2 * 18-2154 50. O-Ring ................................................ 25-25439 * 18-7153 51. Washer, Lower Shift Shaft Bushing ..................................... N/A 52. Retaining Clip, Shift Shaft................... 53-29641 18-4295 53. Stainless Steel Shift Shaft .................... 77481-1 18-2150 54. Cotter Pin, w/Shift Spool Assembly ............................ 18-469501 NSS 55. Sleeve, w/Shift Spool Assembly .......................................... NSS 56. Retainer Spring, w/Shift Spool Assembly .......................................... NSS 57. Washers, w/Shift Spool Assembly .......................................... NSS 58. Spring, w/Shift Spool Assembly .......................................... NSS 59. Spool, w/Shift Spool Assembly .......................................... NSS 60. Shift Crank ................................................76865 18-2130 61. Shaft, w/Shift Spool Assembly .......................................... NSS 62. Shim, Forward Gear Bearing .............................. 15-47397A1 18-2285 63. Tapered Roller Bearing................... 31-35928A1 18-1159 64. Needle Roller Bearing ........................ 31-30895 18-1157 65. Lower Unit Gear Set (forward)...................................... 23-96084A4 18-2200 66. Spring, Retainer, Cross Pin ................ 24-30893 18-2348 67. Sliding Clutch ..................................... 52-66063 18-2202 68. Cross Pin, Clutch to Clutch Actuating Shaft ........................................... 18-2348 69. Propeller Shaft ................ 44-66060, 44-66060-3 18-2166 70. Shim (s) Thrust Ring to Gear Housing .............................. 15-31535A1 18-2284 71. Lower Unit Gear Set (reverse) ...................................... 43-96084A4 18-2200 72. Thrust Ring, Bearing Carrier ....................35915 18-3759 73. Ball Bearing .................................... 30-88957A1 18-1155 74. O-Ring ................................................ 25-31534 18-7159 75. Needle Roller Bearing ........................ 31-30956 18-1158 76. Bearing Carrier Assembly ................. 73020A14 18-2191 77. Key, Locating - Bearing Carrier....................... N/A 78. Oil Seals ............................................. 26-76868 18-2002 79. Tab Washer......................................... 14-79447 18-2299 80. Spanner Nut .............................................79448 18-3751 81. Thrust Washer ..............................13171, 77987 18-4220 82. Continuity Washer .......................................... N/A 83. Brass Castle Washer ...................... 12-31211A2 18-3714 84. Tab Washer...................... 14-31210, 14-816629 18-3200 85. Prop Nut ............................................. 11-52707 18-3700

Included in 18-2196 Shift Shaft Spool Assembly

* Included in Seal Kit 18-2652 (Not Pictured) N/A Not Available NSS Not Sold Separately623

624

I/O MERCRUISER - Generation II Lower Gearcase Assembly


I/O MERCRUISER - Generation II Lower Gearcase Assembly

Description 1. 2. 3. 4. 5.

O.E. #

Part # 18-3151 18-7420 18-2599 NSS NSS 18-3147 18-3056 18-2563 18-3122 18-2564 18-2354 18-7176 18-2013 18-2014 18-2346

Description

O.E. #

Part # 18-1117 18-2206 18-2343 18-3719 18-2130 18-2286 18-2285 18-1159 18-1157 NSS 18-2206 18-2348 18-2357 18-2202 18-2166 18-2206 18-2342 18-1155 18-7159 18-1158 18-2376 18-2002 18-2076 18-2298 18-3751 18-4220 NSS 18-3714 18-3200 18-3700 18-6093 18-2646-1

Gear Housing ......1623-815822A30 Sleeve ........................... 23-816573 Coupling .........................816597A1 O-Rings ........................... 25-21836 Face Seal ..................26-816575A2

32. Pin ................................17-37972-1 33. Pinion Bearing .............31-42647A1 34. Pinion Gear ...............43-828072A2 35. Washer ............................ 12-92721 36. Nut ................................... 11-35921 37. Shift Crank ............................ 76865 38. Shift Spool Assembly......818349A1 38A. Cotter Pin & Sleeve .................NSS 39. Retainer ...................................NSS 40. Washers ..................................NSS 41. Spring ......................................NSS 42. Shift Spool ...............................NSS 43. Clutch Shaft .............................NSS 44. Shim(s) ........................15-47397A1 45 & 46. Set, Cone & Race ........31-35928A1 47. Forward Gear, Inner Bearing ................. 31-30895 47A. Retaining Clip, Inner Bearing

5A. Screw, 10-32 X 5/8 ........ 10-806290 5B. Star Washer ..................... 13-69432 6. 7. 8. 9. Water Pump Body ..........817275A1 Impeller .........................47-43026-2 Gasket ........................... 27-817277 Face Plate .......................... 817276

10. Gasket ..........................27-43033-1 11. Seal Carrier ....................821759A2 12. O-Rings ........................... 25-90011 13. Seal ................................ 26-16977 14. Seal ................................. 26-89238 15. Cover Nut ........................... 824519 16. & 17. Bearing, Upper Driveshaft .............. (1.50-1.65 Ratio) .......31-36387A1 16. & 17. Bearing, Upper Driveshaft (1:47-1:62 Ratio) .......31-33138A1 18. Shim(s) ........................15-42637A1 19. Drive Shaft (1:47-1:62 Ratio) ......... 45-853648 19. Drive Shaft (1.50-1.65 Ratio) ......... 45-816919 19. Drive Shaft (1.84-1.98 Ratio) ......... 45-816472 20. Impeller Drive Key ........... 28-43037 21. Shift Shaft .......................815919A1 22. Speedometer Pickup Fitting ...NSS 23. Sleeve ............................. 23-67370 24. Seal ................................. 26-89236 25. Shift Rod Bushing Assembly .............23-815921A21 26. O-Rings ........................... 25-36318 27. Retaining Ring ................. 53-29641 28. Dowel Pin ........................ 17-43044 29. Seal ................................. 26-45577 30. Gasket ............................. 12-19183 31. Plug .............................22-67892A1

18-1143

48. Forward Gear ............43-828072A2 49. Cross Pin Spring ............. 24-30893 50. Cross Pin ......................... 17-30632

18-1193 18-2294

51. Sliding Clutch ................ 52-824112 52. Propeller Shaft ............... 44-824110 53. Reverse Gear ............43-828072A2

18-2331 18-2261 18-3293 18-2320 18-2349 18-2009 18-2353 18-7440-1 18-4295 18-2944 18-2945 18-2375

54. Thrust Ring ......................... 681001 55. Ball Bearing .................30-88957A1 56. O-Ring ............................. 25-31534 57. Roller Bearing.................. 31-30956 58. Bearing Carrier .............818763A10 59. Seal ................................. 26-14077 60. Seal ................................. 26-12224 61. Tab Washer...................... 14-18323 62. Cover Nut ............................. 79448 63. Thrust Hub............................ 13171 64. Continuity Washer ........13-42351-1 65. Splined Washer ...........12-31211A2 66. Tab Washer...................... 14-31210 67. Propeller Nut ................... 11-52707 68. Carrier Anode .................806105A1 Seal Kit ......................26-816575A3 (Not Pictured)

Pieces not sold separately, must be purchased as 18-2286.Kitconsistsoffigurenumbers38a-43 Mustuse18-1143 Comes with #25 Housingkit#18-3147only=817275T4 Gears sold as set only

Includesinnerbearing&seals 18-2013and18-2014forS/NOD469859-OF679999 only. Use 18-2056 for both seals on S/NOF680000-OM400411. NSS NotSoldSeparately

For Water Pump Kit use 18-3147 Mercruiser # 817275T4

625


18-2292 SHIM KIT Drive Gear Replaces: 15-35980A1

Contains (1) each .002, .003, .005, .006, .010, .025 For: Mercruiser Vazer

18-2293 SHIM KIT Upper Bearing Replaces: 15-36178A1

18-2294 SHIM KIT Lower Drive Shaft Bearing Replaces: 15-42637A1Contains (1) each .002, .003, .005, .010, .020 For: Mercruiser Vazer

Contains (1) each .002, .003, .015 (2) each .010 For: Mercruiser Vazer

SHIMS

* * * *

Part #

Size

O.E. #

18-2282 18-2283 18-2284 18-2285 18-2296

Kit Kit Kit Kit .055

18-2295 SHIM KIT Lower Drive Shaft Bearing Replaces: 15-57007A1Contains (1) each .002, .003, .005, .010, .020 For: Mercruiser Vazer

15-32563A1 For: Mercruiser Vazer 15-45691A1 15-31535A1 15-47397A1 15-71013

* 18-2282 (1) each .002, .003, .005, .010, .025 * 18-2283 (1) each .002, .003, .005, .010 * 18-2284 (1) each .002, .003, .005, .010, .020 * 18-2285 (1) each .002, .003, .005, .010, .020 SHIM KIT APPLICATIONBearing to Top Cover Kit Bearing Cup to Drive Shaft Housing Drive Gear Drive Gear Spacer Drive Shaft Bearing to Gear Housing Reverse Gear Forward Gear Kit

HP

Serial Number

120/140 120/140 120/140 160 165 165 888 898/228 898/228 225-S 233 250 260 470 470 485 R/MR/Alpha One R/MR/Alpha One Alpha Gen II Alpha Gen II

2062141 thru 2791956 2791957 thru 4893634 4893635 thru 6225576 2065190 thru 2763441 2763442 thru 4890459 4890460 & UP 3106717 & UP 4782330 thru 4898729 4898730 thru 6225576 3856268 thru 4200499 4200500 & UP 4791300 thru 4898729 4898730 thru 6225576 4208730 thru 4893934 4893835 thru 6225576 4893835 & UP 6225577 & UP (R) 6225577 & UP (MR) D494569 thru F679999 F680000 & UP 18-0208 18-0210 18-0212 18-0214 18-0218

18-2282 18-2283 18-2283 18-2282 18-2283 18-2283 18-2283 18-2283 18-2283 18-2283 18-2283 18-2283 18-2283 18-2283 18-2283 18-2283 18-2283 18-2283 18-2283 18-2282

18-2293 18-2293 18-2293 18-2293 18-2293 18-2293 18-2293 18-2293 18-2293 18-2293 18-2293 18-2293 18-2293 18-2293 18-2293 18-2293 18-2293 18-2293 18-2293

18-2292 18-2292 18-2292 18-2292 18-2292 18-2292 18-2292 18-2292 18-2292 18-2292 18-2292 18-2292 18-2292 18-2292 18-2292 18-2292 18-2292 18-2292 18-2292 18-2293

18-2296 18-2296 18-2296 18-2296 18-2296 18-2296 18-2296 18-2296 18-2296 18-2296 18-2296 18-2296 18-2296 18-2296 18-2296 18-2296 18-2296 18-2296 18-2296 18-2292 18-0220 18-0222 18-0224 18-0226

18-2295 18-2295 18-2295 18-2295 18-2295 18-2295 18-2295 18-2295 18-2295 18-2295 18-2295 18-2295 18-2295 18-2295 18-2295 18-2295 18-2295 18-2294 18-2294 18-2296

18-2284 18-2284 18-2284 18-2284 18-2284 18-2284 18-2284 18-2284 18-2284 18-2284 18-2294

18-2285 18-2285 18-2285 18-2285 18-2285 18-2285 18-2285 18-2285 18-2285 18-2285 18-2285 18-2285 18-2285 18-2285 18-2285 18-2285 18-2285 18-2285 18-2285

For .208" Shim use Part Number For .210" Shim use Part Number For .212" Shim use Part Number For .214" Shim use Part Number For .218" Shim use Part Number

For .220" Shim use Part Number For .222" Shim use Part Number For .224" Shim use Part Number For .226" Shim use Part Number

S/N #2187468 & Below use 18-2293 S/N #4433200 & UP Only S/N #4530702 & UP Only Kit For Counter Rotation Only

18-2400 COMPLETE LOWER GEAR CASE 626

18-2411 DRIVE SHAFT HOUSING ASSEMBLY

Replaces: 1547-861063A4

Replaces: 1623-815822A53

For: Ratios 1.47, 1.62, 1.81 & 1.94 Fits: Gen II (1998 & up) 0L100040 & up

For: Gen II Upper (1998-up), 0L100040-up, 1.47:1 Ratio/Gen II Upper (1998up) 0L100040-up, 1.62/2.00:1 Ratios/Gen II Upper (1998-up), 0L100040-up, 1.81:1 Ratio/Gen II Upper (1998-up), 0L100040-up, 1.94/2.40:1 Ratios Used with: 18-2416, 18-2417, 18-2418, 18-2419 Complete Upper Gear Cases


18-2415 GEAR HOUSING ASSEMBLYReplaces: 1623-815822A36For: Ratios 1.47, 1.62 Gen II (1998 & up), (0L100040 & up) Used with: 18-2400 Complete Lower Gear Case

18-2416 COMPLETE UPPER GEAR CASE

Replaces: 1547-861063A12

For: Alpha Gen II (1991 & UP) for gear ratios 1.47:1, 1.50:1. Used with 18-2411 Drive Shaft Housing Assembly


Replaces: 1547-861063A10


For: Alpha Gen II (1991 & UP) for gear ratios 1.62:1, 1.65:1, 2.0:1. Used with: 18-2411 Drive Shaft Housing Assembly

Replaces: 1547-861063A8

For: Gen II (1991 & UP) for gear ratios 1.81:1, 1.84:1. Used with: 18-2411 Drive Shaft Housing Assembly


Replaces: 1547-861063A6

For: Alpha Gen II (1991 & UP) for gear ratios 1.98:1 and 2.40:1 Used with: 18-2411 Drive Shaft Housing Assembly

18-2450 COMPLETE UPPER GEAR CASE Replaces: 1547-9412A201.5:1/1.47:1




18-2443 COMPLETE LOWER GEAR CASE Replaces: 1623-8951A43For: R/MR/ALPHA

627


18-2401 LOWER GEAR HOUSING Replaces: 1623-8951A27, 1623-8951A37

For: MR/ALPHA Style Bore size 3.2635-3.2650. Includes tapered roller bearing for non-tractor 14/28 or 17/28 gears. When installing new gears use 18-2206-1 gear kit which includes tapered roller bearing 18-1156 for tractor 13/21 gears.

18-2358 UPPER UNIT GEAR REPAIR KIT Replaces: 43-803102T1

For: 20-22 Teeth: 1.50:1 (1.47:1) Gen II applications serial number range up to OK999999 only


For: 20-24 Teeth: 1.98:1 (1.94/2.40:1) Gen II applications serial number range up to OK999999 only




18-6350K UPPER UNIT GEAR REPAIR KIT Replaces: 43-803104T1For: Gen II (1998 & Up)(S/N OL100040 & Up) 1.62:1 and 2.00:1 Ratio


18-6351K UPPER UNIT GEAR REPAIR KIT Replaces: 43-803103T1For: Gen II (1998 & Up)(S/N OL100040 & Up) 1.47:1 Ratio

18-6352K UPPER UNIT GEAR REPAIR KIT Replaces: 43-803106T1For: Gen II (1998 & Up)(S/N OL100040 & Up) 1.94:1 and 2.40:1 Ratio

18-6353K UPPER UNIT GEAR REPAIR KIT Replaces: 43-803105T1 628For: Gen II (1998 & Up)(S/N OL100040 & Up) 1.81:1 Ratio

Includes: (1) 18-1142 Mercruiser #31-32573A1 (1.5:1 Ratio) (Drive Gear = 22 teeth Driven Gear = 20 teeth) For most V-8 Drives and Gen II (S/N K999999 & BELOW) Stern Drive Model 225 260 898/228 Beg. S/N 3856268 4898730 4782330 End. S/N 4200499 6225576 6225576 Stern Drive Model 888 V8R/MR/AlphaOne Beg. S/N End. S/N 3106717 & UP 6225577 & UP

18-2201 UPPER UNIT GEAR SET Replaces: 43-18410A2, 43-18411A2


18-2203 UPPER UNIT GEAR SET Replaces: 43-45814A5


(1.65:1 Ratio) (Drive Gear = 24 teeth Driven Gear = 24 teeth) For: 6 Cyl. Inline S/N K999999 & BELOW

(1.84:1 Ratio) (Drive Gear = 17 teeth Driven Gear = 19 teeth) For: V-6 and 470/485 (4 Cyl. etc.) and Gen II (S/N K999999 & BELOW)


(1.98:1 Ratio) (Drive Gear = 20 teeth Driven Gear = 24 teeth) For: 120/140 (S/N 2791957 & UP) and Gen II (S/N K999999 & BELOW)

18-6350 UPPER UNIT GEAR SETReplaces: 43-853640A2For: Gen II Upper (1998-up), 0L100040-up, 1.62/2.00:1 Ratios (24-24 Teeth) Used with: 18-2417 Complete Upper Gear Case

18-6351 UPPER UNIT GEAR SETReplaces: 43-853641A2For: Alpha I (Gen II) (1998-up), 0L100040-up, 1.47:1 Ratio (20-22 Teeth) Used with: 18-2416 Complete Upper Gear Case

18-6352 UPPER UNIT GEAR SETReplaces: 43-853642A2For: Alpha I (Gen II ) (1998-up), 0L100040-up, 1.94:1, 2.40:1 Ratios (20-24 Teeth) For: Mercruiser Vazer Used with: 18-2411 Drive Shaft Housing Assembly, 18-2419 Complete Upper Gear Case

18-6353 UPPER GEAR KIT Replaces: 43-853643A2

1.81 Ratio Upper Gear Set, 17-19 Teeth For: Alpha I Gen II 1998-up/0L00040-up For: Mercruiser Vazer

FIGURES #1 - #2 Provides two separate views of the upper gear housing driven gear being properly shimmed using the Sierra installation tools.FIG. #1

FIGURES #3 - #4 Provides the same views of the drive gear being shimmed in the same application. NOTE: This installation cannot be performed correctly without the Sierra 18-9856 shim tool. Improper installation will result in gear failure. The .025 referenced in FIG #2 & FIG #4 is achieved when .026 will not fit the clearance but .025 will. A service manual should always be consulted for step-by-step instructions.FIG. #4

FIG. #3

FIG. #2

Part # 18-2201 18-2648 18-2619-1 18-2820

18-2256 UPPER GEAR KIT Replaces: 43-803116T1Most V-8 Drives (1.5:1 Ratio)

18-2743 18-1160 18-1165 18-1142

CONTAINS Description Upper Unit Gear Set Seal Kit Outdrive Gasket Set Drive Shaft Housing to Bell Housing Gasket Drive Shaft Housing to Bell Housing Gasket Bearing Bearing Bearing

O.E. # 43-18410A2 26-32511A2 27-94996A1 27-64818 27-94996-2 31-35988A2 31-61100A1 31-35990A1

Qty. 1 1 1 1 1 1 1 1

629


Part # 18-2203 18-2648 18-2619-1 18-2820 18-1160 18-1161 18-1165 18-2743

CONTAINS Description Gear Set Seal Kit Outdrive Gasket Set Drive Shaft Housing to Bell Housing Gasket Bearing Bearing Bearing Drive Shaft Housing to Bell Housing Gasket

O.E. # 43-45814A5 26-32511A2 27-94996A1 27-64818 31-35988A2 31-35990A1 31-61100A1 27-94996-2

Qty. 1 1 1 1 1 1 1 1

6 Cyl. Inline (1.65:1 Ratio)

18-2257 UPPER GEAR KIT Replaces: 43-803112T1

Part # 18-2204 18-2648 18-2619-1 18-2820 18-1160 18-1161 18-2743 18-1165

CONTAINS Description Gear Set Seal Kit Outdrive Gasket Set Drive Shaft Housing to Bell Housing Gasket Bearing Bearing Drive Shaft Housing to Bell Housing Gasket Bearing

O.E. # 43-75325A3 26-32511A2 27-94996A1 27-64818 31-35988A2 31-35990A1 27-94996-2 31-61100A1

Qty. 1 1 1 1 1 1 1 1

V-6 (470/485) (1.84:1 Ratio)

18-2258 UPPER GEAR KIT Replaces: 43-803114T1

Part # 18-2205 18-2648 18-2619-1 18-2820 18-1160 18-1161 18-1165 18-2743

CONTAINS Description Gear Set Seal Kit Outdrive Gasket Set Drive Shaft Housing to Bell Housing Gasket Bearing Bearing Bearing Drive Shaft Housing to Bell Housing Gasket

O.E. # 43-55778A3 26-32511A2 27-94996A1 27-64818 31-35988A2 31-35990A1 31-61100A1 27-94996-2

Qty. 1 1 1 1 1 1 1 1

18-2259 UPPER GEAR KIT Replaces: 43-803101T1120/140 (1.98:1 Ratio)

18-2125 YOKE Replaces: 46020T

Fits all #1/ALPHA Units (S/N 1684188 - OK999999)

18-2146 YOKE Replaces: 59830A1, 59830A7

Fits all #1, R, MR, Alpha I, Alpha I Gen II, Bravo & Blackhawk

18-6400 YOKE Replaces: 12784

For: Bravo (OM111207 & below) and Blackhawk

18-6403 YOKE Replaces: 865492T, 864282TFits: Alpha I Gen II 0L949779 & UP, Bravo 0M111208 & UP (GKN style) For: Mercruiser Vazer

18-6405 YOKE Replaces: 865491A01, 864281A01Fits:Alpha I Gen II 0L949779 & UP (GKN style) For: Mercruiser Vazer

18-1709 YOKE ASSEMBLY Replaces: 862129A1

630

For: Bravo X (OM100001 - OM750174) (2000-03) Meritor Style: Bravo XR/X2 (OM100001 - up) (2000-up) Not for Bravo drive with Integrated transom using "long" u-joint assembly (862129T3)


18-6401 YOKE ASSEMBLY Replaces: 12784A10, 864244A2For Bravo I, II, III (OB664190 - up) (1998-05)

18-6402 YOKE ASSEMBLY Replaces: 864281A2For: Alpha I (Gen II) (1998 & up) (OL100040 & up) GKN Style For: Mercruiser Vazer

18-9218 YOKE ASSEMBLY Replaces: 814819A2

For all #1, R/MR/ALPHA Gen II OK999999 & Below (1971-97)

18-2128 CENTER SOCKET Replaces: 39383T, 343831

(Rockwell) Fits IA/IB/IC & EZ, MC-I, R, MR, Alpha One, Gen II (OL949778 & below), Bravo (OM111207 & below), MC II & TS

18-6404 CENTER SOCKET Replaces: 865503TFits: Alpha I Gen II 0L949779 & UP, (GKN style)

18-1711 U-JOINT Replaces: 862132T

For: Bravo One, Two, & Three (All Ratios), Bravo One X/ Two X, Three X (All Ratios), Bravo One XR/XZ(All Ratios), Bravo One XR Sportmaster (All Ratios) & Integrated Transom

18-2097 U-JOINT Permalube Replaces: 805536A2For: Generation II F680000 & UP

18-2104 U-JOINT Heavy Duty Replaces: 75832A2, 75832T

Includes both straight and 90 grease fitting. (Rockwell) Fits all #1 and ALPHA I Units S/N 1684188-B418818. Also TR/TRS and II SSM.

Includes both straight and 90 grease fitting. (Rockwell) Fits ALPHA I Units S/N B418819 & above. Also fits ALPHA I SS & BRAVO

18-2174 U-JOINT Heavy Duty Replaces: 75832A3, 758321, 75832T1

18-6406 U-JOINT ASSEMBLY Replaces: 865496A01, 865493A01GKN new style with external clips. Fits: Alpha I Gen II 0L949779 & UP, Bravo 0M111208 & UP For: Mercruiser Vazer

18-8311 GIMBAL HOUSING REBUILD KITFits: Alpha One

18-8312 GIMBAL HOUSING REBUILD KITFits: Gen II

b

b

18-8313 GIMBAL HOUSING REBUILD KITFits: Bravo

18-21001 GIMBAL BEARING Replaces: 30-879194A02

Fits: MC-1, R, MR and Alpha(1974-97), Gen II(1991-97), Bravo I/II/III (1988-95)

18-21006 GIMBAL BEARING Replaces: 30-879194A01

Fits: Gen II (1998-10), Bravo I/II/III & X/XR/XZ (1996-10)

631


18-21005 GIMBAL BEARING Replaces: 30-862540A3Fits:All Bravos, Alpha One Gen II (1998-up)

18-21005K SEAL & GIMBAL BEARING KITFits: Gen II (1998-Up) and all Bravo

18-2101 GIMBAL BEARING Replaces: 30-36418 (Link-Belt)

18-2100 HEAVY DUTY GIMBAL BEARING Replaces: 30-60794A4 (Link Belt)Fits: Mercruiser- 120HP / 140HP (2791957-6225576) ( With Gimbal Trim Sender), 165HP (2763442 & Up), 225S (3856268-4200499), 228HP (4782330 & Up), 233HP (4200500 & Up), 250HP (4791300 & Up)

18-2100K SEAL & GIMBAL BEARING KITFits: 1, R, MR and Alpha (1974-97)

18-1705 HINGE PIN Replaces: 77123(with grease port)For gimbal housing Fits: Alpha, Alpha Gen II S/N 0M815638 & Lower

18-1706 HINGE PIN Replaces: 10-86801For gimbal housing Fits: Alpha Gen II S/N 0M85639 & UP Bravo All Models with trim sender

18-2381 UPPER DRIVE UNIT CAP Replaces: 94998A2, 94998A4

S/N 6225577 & Later Alpha I, except Gen II

18-2382 UPPER DRIVE UNIT CAP Replaces: 828692A1For: Gen II S/N F680000 & UP

GIMBAL BEARING APPLICATIONStern Drive Model Beginning Serial No. Ending Serial No. Gimbal Bearing Stern Drive Model Beginning Serial No. Ending Serial No. Gimbal Bearing

IA IB IC II II 120, 140 120, 140 120, 140 160 165 165

1684186 1684633 1685240 1602186 2398798 2062141 2791957 2791957 2065190 2763442 2763442

2062140 2062140 2065189 2278488 2671321 2791956 4893634 4893634 2763441 4890459 4890459

18-2101 18-2101 18-2101 18-2101 18-2101 18-2101 18-2101 18-2100 18-2101 18-2101 18-2100

Without Gimbal Trim Sender

With Gimbal Trim Sender

165 225S 228 233 250 470 888 888 898 R, MR, Alpha Alpha Gen II Bravo

4890460 3856268 4782330 4200500 4791300 4208730 3106717 3106717 4782330 4893635 ALL ALL

& UP 4200499 & UP & UP & UP & UP & UP & UP & UP 0D46958

18-2100 18-2100 18-2100 18-2100 18-2100 18-2100 18-2101 18-2100 18-2100 18-2100 18-21005 18-21005

632

18-2179 DRIVE SHAFT Replaces: 45-55796


For: Gen II (S/N F680000 & UP), Mercruiser Vazer

18-3713 LOCK NUT Replaces: 11-22339 5 /8" - 18

18-3712 CARRIER NUT WASHER Replaces: 12-45810


18-3752 RETAINING NUT Replaces: 816811-1, 8168112

18-4296 SPACER RING Replaces: 35983 (Upper Housing)

18-3219 WATER TUBE & COVER ASSEMBLY Replaces: 42724A3 18-0577 CARRIER OIL SEAL ASSEMBLY Replaces: 66081A2

For: Merc I and Alpha I drives Models: I, 1A,1B, 1C, 1CEZ, 120, 140, 160, 165, 888, 898, 228, 225-S, 233, 250, 260, 470,485,R, MR, Alpha 18-3229 BOLT Replaces: 10-28668

18-2322 SHIFT SHAFT Replaces: 621041For: I and Alpha I

18-2169 SHIFT ARM Replaces: 45589A3

18-3749 UPPER SHIFT SHAFT Replaces: 816685For: Alpha Gen II (1991-98)

18-2599 FACE SEAL & TOOL Replaces: 26-816575A2For: ALPHA I GENERATION II

18-2622 BELL HOUSING BUSHING KIT Replaces: 23-805041A2

18-3760 BELL HOUSING BUSHING KIT Replaces: 23-806036A1For: GEN II Serial # F680000 & UP

18-2161 SHIFT ARM Replaces: 45518A2PKG. OF 5

18-2170 SHIFT ARM SCREW Replaces: 10-45590PKG. OF 5

18-2162 SHIFT CABLE SLIDE & SCREW Replaces: 33981T

18-2162E SHIFT CABLE SLIDE & SCREWFor Extreme Cables Only

18-2163 18-2163-9 SHIFT SLIDE SCREW Replaces: 10-31700

18-2163E-9 SHIFT SLIDE SCREWFor Extreme Cables Only

18-2715 CHECK VALVE KIT Replaces: 24-17997A1For: Alpha I Generation II and Bravo I, II, and III Drives

18-2724 TRANSOM SEAL Replaces: 3713For: Alpha Gen II, All Bravo

Priced per Package

633


Part # 18-2619-1 18-2100 18-2161 18-2751 18-2750 18-2753-1 18-3601 18-3602 18-7310 18-7314 18-7315

CONTAINS Description Outdrive Gasket Set Gimbal Bearing Shift Arm U-Joint Bellows Exhaust Bellows Shift Cable Bellows Water Intake Hose Water Intake Hose Hose Clamp Stainless Steel Hose Clamp Stainless Steel Hose Clamp

O.E. # 27-64818A3 27-94996A1,Q2 30-60794A4 45518A2 60932A4 32734A3, 18654A1 74639 32-32461 32-41725-33

Qty. 1 1 1 1 1 1 1 1 2 1 1

18-2601-1 TRANSOM SEAL KIT Replaces: 30-803097T1R, MR, ALPHA 1 (1983-90) S/N 6225577 & UP ALPHA 1 SS (1986-89) S/N OA 545004 & UP

Part # 18-2100 18-2751 18-2760 18-3601 18-3602 18-2743 18-2840 18-7153 18-7117 18-7310 18-7170 18-7312 18-2753-1 18-7321

CONTAINS Description Gimbal Bearing U-Joint Bellows Exhaust Tube Water Intake Hose Water Intake Hose Drive Shaft Housing to Bell Housing Gasket Bell Housing Gasket O-Ring O-Ring Hose Clamp O-Ring Hose Clamp Shift Cable Bellows Bellows Clamp

O.E. # 30-60794A4 60932A4 78458A1 32-32461 32-41725-33 27-94996-2 27-35982 25-25439 25-35027 25-33504 74639 54-38863

Qty. 1 1 1 1 1 1 1 1 1 2 1 1 1 1

18-8205 TRANSOM SEAL KIT Replaces: 30-803098T1For: 1, R, MR, Alpha 1 with exhaust tube

Part # 18-3602 18-7310 18-7312 18-2753-1 18-7321 18-2100 18-2743 18-2840 18-7153 18-7170 18-7117 18-2750 18-2747

CONTAINS Description O.E. # Water Intake Hose 32-41725-33 Hose Clamp Hose Clamp Shift Cable Bellows 74639 Bellows Clamp 54-38863 Gimbal Bearing 30-60794A4 Drive Shaft Housing to Bell Housing Gasket 27-94996-2 Bell Housing Gasket 27-35982 O-Ring 25-25439 O-Ring 25-33504 O-Ring 25-35027 Exhaust Bellows 18654A1, 32734A3 Drive Bellows 816431A1

Qty. 1 2 1 1 1 1 1 1 1 1 1 1 1

18-8206 TRANSOM SEAL KIT Replaces: 30-803099T1For: Alpha 1 Gen II

Part # 18-2753-1 18-2100 18-2756 18-2750 18-2760 18-3603 18-2615

CONTAINS Description Shift Cable Bellow Gimbal Bearing U-Joint Bellows Exhaust Bellows Exhaust Tube Water Hose Outdrive Mounting Kit

O.E. # 74639 30-60794A4 86840A3 32734A3 78458A1 32-43437 16755A1

Qty. 1 1 1 1 1 1 1

18-8212 TRANSOM SEAL KIT Replaces: 30-803100T1 For: All Bravos 1982 & up

634

18-2747 U-JOINT BELLOWS Alpha 1, Gen II Replaces: 816431A1

18-2750 EXHAUST BELLOWS All #1 Units, Gen II, TRS, & Bravo I, II, III Replaces: 32734A3, 18654A1(Includes 18-7314 Clamp)

18-2751 U-JOINT BELLOWS Replaces: 60932A4(Includes 18-7316 Clamp)

All #1 units with ridge (S/N 3469428 & UP)


18-2753-2D

18-2752 U-JOINT BELLOWSAll #1 units without ridge (S/N 3443920 & BELOW)

18-2753-2 SHIFT CABLE BELLOWSAll #1, #2 units, Alpha, Bravo I, II, III

Replaces: 36223A2(Includes 18-7316 Clamp)

Replaces: 74639, 74639A2(Includes 18-7321 Clamp)

18-2756 U-JOINT BELLOWS Replaces: 86840A3, 86840A05Fits all Bravo and Blackhawk models

b18-1710 BELLOW FLANGE RING Replaces: 862209Fits: All Bravo

b18-1728 BELLOW FLANGE RING Replaces: 816607Fits: Alpha One (GenII) (1991 and Up)

18-2746 EXHAUST BOOT Replaces: 32-14358T(4" Lower Tube)

18-2748 EXHAUST BOOT Replaces: 32-44348T(4" Upper Tube)

18-2759 EXHAUST TUBE Replaces: 53114A1

18-2760 EXHAUST TUBE Replaces: 78458A1(Includes 18-7314 Clamp) For: #1, Bravo I, II, III

18-2761 EXHAUST TUBE 3" I.D. Replaces: 32-90949T

18-2762 EXHAUST TUBE Replaces: 70981A3

18-2770 EXHAUST TUBE Replaces: 32-807458T

Items ending in "D" are Display Packaged - Regular number is Non-Display

BELLOWS APPLICATIONModel I/1A/1B/1C & EZ 120/140/160/165 120/140/160/165 888 888 225/233 898/228/250/260 R/MR/Alpha One R/MR/Alpha One Alpha One Gen II Bravo I/II/III Bravo I/II/III Blackhawk Blackhawk II 215H 215E TR/TRS Tube Years 1963-1966 1967-1972 1972-1982 1971-1972 1973-1977 1974-1977 1977-1982 1983-1990 1983-1990 1991 & Newer 1988 & Newer 1988 & Newer 1994-1995 1994-1995 1962-1969 1970 1970-1972 1973-1993 Serial # 1534570-2065186 2062141-3443920 3469428-6225576 3106717-3472477 3472478 & Up 3856268 & Up 4782330-6225576 6225577 & Up 6225577 & Up 0D469859 & Up 0B664190 & Up 0B664190 & Up 0F18677 & Up 0F18677 & Up 1474909-2671321 2782203-2909034 2909035-2915034 3377316 & Up Exhaust Bellows 18-2750 18-2750 18-2750 18-2750 18-2750 18-2750 18-2750 18-2750 18-2760 18-2750 18-2750 18-2760 18-2750 18-2760 Shift Cable Bellows 18-2753-2 18-2753-2 18-2753-2 18-2753-2 18-2753-2 18-2753-2 18-2753-2 18-2753-2 18-2753-2 18-2753-2 18-2753-2 18-2753-2 18-2753-2 18-2753-2 18-2753-2 18-2753-2 U-Joint Bellows 18-2752 18-2752 18-2751 18-2752 18-2751 18-2751 18-2751 18-2751 18-2751 18-2747 18-2756 18-2756 18-2756 18-2756 18-2752 18-2752 18-2751 635


PKG. OF 5

18-9031 BELLOWS ADHESIVE Replaces: 92-86166 2 Fluid oz.

18-7321 18-7321-9 BELLOWS CLAMP Replaces: 54-38863

INNER SHIFT CABLE 18-2159 Replaces: 66069A2Use in 18-2157, 18-2158 and their Mercruiser equivalent as replacement wire and tube Stranded Core 73"

18-2189 Replaces: 38399A2Use with 18-2248 Inner Core Wire 59"

18-2160 SHIFT CABLE SUPPORT TUBE Replaces: 32-38377

Replaces tube on 18-2157, 18-2158 & 18-2159

18-2157 Replaces: 41951A1, 19543A4 18-2248 SHIFT CABLE ASSEMBLY Replaces: 73723A1

Mercruiser 1 drives S/N 6225577 & UP For AFT installation into bell housing. Has old style stranded core wire with soldered tip (Uses Support Tube).

Mercruiser #1 Drives S/N 1562900-6225576 for forward installation into bell housing. Has new style armored strand construction. (No support tube) 54" conduit with hardware package.

18-2158

Mercruiser #1 Drives S/N 1562900-6225576 for forward installation into bell housing. Has old style stranded core wire with soldered tip. (Uses support tube) 63" conduit

SHIFT CABLE ASSEMBLY

18-2190 SHIFT CABLE Replaces: 19543A4, A10

Mercruiser 1 drives S/N 6225577 & UP For AFT installation into bell housing. For use in applications using core wire with armored strand construction (No Support Tube). 63" Conduit with hardware package.

18-2190E SHIFT CABLE Replaces: 19543A4, 19543A10

S/N 6225577 & UP. For AFT installation into bell housing. For use in applications using core wire with armored strand construction (No Support Tube). 63" Conduit with hardware package. Lower Shift Cable- Alpha One (Gen II) (1991-97)

18-2145E SHIFT CABLE Replaces: 815471, A3, A6 18-2145 SHIFT CABLE Replaces: 815471A3, A6

Bravo One, Two, & Three (All Ratios), Bravo One X/Two X, Three X (All Ratios), Bravo One XR/XZ(All Ratios), Bravo One XR Sportmaster (All Ratios) & Integrated Transom

18-9806E SHIFT CABLE TOOLInstalls and removes shift cables on MC-I, R-MR, Alpha I, Alpha I Gen II drive units. Use with 18-2190 and 18-2190E cables.

18-2149 SHIFT CABLE GUIDE Replaces: 43433For: Alpha & Bravo cables

636

Priced per Package


PKG OF 25

18-2600 LOWER SHIFT CABLE KIT 18-2303 18-2303-9 ANCHOR SCREW SET Replaces: 10-20518For: #1R, MR, Alpha, Alpha I, Gen II & Bravo Part # 18-2619-1 18-2753-1 18-2248 18-2162 18-2149 18-2163 18-2743 18-2820 18-2843 CONTAINS Description Outdrive Gasket Set Shift Cable Bellows Shift Cable Assembly Shift Slide & Screw Shift Cable End Kit Shift Slide Screw Drive Shaft Housing to Bell Housing Gasket Drive Shaft Housing to Bell Housing Gasket Drive Shaft Housing to Bell Housing Gasket O.E. # 27-94996A1 74639 73723A1 33981T 43433 10-31700 27-94996-2 27-64818 27-94996 Qty. 1 1 1 1 1 1 1 1 1

18-3754 CABLE ANCHOR Replaces: 43436For: #1R, MR, Alpha, Alpha I, Gen II & Bravo

18-2603 LOWER SHIFT CABLE KIT Replaces: 19543T-1ALPHA I GENERATION II Part # 18-2619-1 18-2753-1 18-2190 18-2743 CONTAINS Description Outdrive Gasket Set Shift Cable Bellows Shift Cable Assembly Drive Shaft Housing to Bell Housing Gasket O.E. # 27-94996A1 74639 19543A4 27-94996-2 Qty. 1 1 1 1

18-2603E LOWER SHIFT CABLE KIT (EXTREME) Replaces: 19543T1For: Alpha I Gen II

18-2604 LOWER SHIFT CABLE KIT Replaces: 815471T1BRAVO Part # 18-2145 18-2149 18-2753-1 18-2615 CONTAINS Description O.E. # Bravo Shift Cable 815471A3 Shift Cable End Kit 43433 Shift Cable Bellows 74639 Outdrive Gasket Set Qty. 1 1 1 1

18-2604E LOWER SHIFT CABLE KIT (EXTREME) Replaces: 815471T1For: Bravo

STAINLESS STEEL CLAMPS Part # 18-7307 18-7308 18-7309 18-7310 18-7311 18-7312 18-7313 18-7314 18-7315 18-7316 18-7317 18-7320 For use with 3" Bellows Diameter Size /16" to 7/8" 9 /16" to 1 1/16" 9 /16" to 1 1/4" 1 1/16" to 1 1/2" 3 /4" to 1 3/4" 1 1/16" to 2" 1 9/16" to 2 1/2" 2 9/16" to 3 1/2" 2 1/2" to 4 1/2" 3" to 5" 5" to 7" 3 1/8" to 4 O.E. #54-32533 O.E. #s 54-31765, 54-8155043725

GRADE 316 STAINLESS STEEL WORM GEAR HOSE CLAMPSStd. # 006 010 012 016 020 024 032 048 064 072 104

All components are manufactured from Marine Grade 316 stainless steel. These clamps are designed to fit many applications from 5/16" to 7" diameter hoses.

18-2175 ENGINE COUPLER Replaces: 18643A7Flex plate style for late model, small crankshaft bolt pattern, style engines

18-2195 ENGINE COUPLER Replaces: 12632A7Flex plate style for GM 4 Cyl engines with late style, small crankshaft bolt pattern

Priced per Package

637


18-2323 ENGINE COUPLER Replaces: 18643A5(Same as 18-2175 without yoke)

18-2321 ENGINE COUPLER Replaces: 12632A6(Same as 18-2195 without yoke)

18-2412 ENGINE COUPLER Replaces: 18311A17, 861523A9For: Bravo

18-2413 ENGINE COUPLER Replaces: 69354A2

18-2414 ENGINE COUPLER Replaces: 97432A2For: 165, 170, 470, 3.7L S/N 6170297 & UP (1983-1989) 180, 190, 488, 3.7LX S/N 6170297 & UP (1983-1989)

For: 470, 485 (224 cu. in.) S/N 4208730-6218036 (1976-1982)



For all GM engines except MR/ALPHA/BRAVO with "Triangular", 3-Bolt coupler

Used when replacing V6 or V8 2 piece rear main seal with 3-1/2" crankshaft bolt pattern to a newer 1 piece rear main seal engine with 3" bolt pattern

18-2173 ENGINE COUPLER Replaces: 59826A3For Ford engines

ENGINE COUPLER APPLICATIONModel110 120 120 120 2.5L 2.5L 140 140 140 140 (Inline 6) 3.0L 3.0L 3.0L 3.0L 3.0LX 3.0LX 150 160 165 (Inline 6) 165 (4 Cyl.) 170 (4 Cyl.) 180 (4 Cyl.) 190 (4 Cyl.) 3.7L, 3.7LX 470, 485 470, 488 175 185 185, 205 185, 205 205 262 Mag. EFI (Gen+) 4.3L, 4.3LX 4.3L 4.3LH (Gen+) 4.3LX 4.3LXH (Gen+) 4.3L EFI (Gen+) 4.3L MPI 225 (Ford) 888

Serial #1537370-2044030 1537370-6229717 6229718-0B531853 6229718-0B531853 0B531854-0C853255 0B531854-0C853256 2508261-6229717 6229718-OB450800 6229718-OB450800 1538930-1725960 0B450801-0C85658 0B450801-0C85658 0C856559-0F603999 0L097000 & UP 0C856559-0F000000 0F000001-0L096999 1666495-2048046 2048022-2770031 2770032 & 5813433 0B434941-0B774251

Years1963-1966 1964-1982 1983-1986 1983-1986 1987-1989 1987-1989 1968-1982 1983-1986 1983-1986 1963 1987-1989 1987-1989 1990-1994 1998-UP 1990-1993 1994-1998 1964-1966 1967-1969 1970-1981 1987

Part #18-2171 18-2171 18-2171 18-2195 18-2171 18-2195 18-2171 18-2171 18-2195 18-2171 18-2171 18-2195 18-2195 18-2323 18-2195 18-2321 18-2171 18-2171 18-2171 18-2414

Model190 200 200 228 230 230 5.0L (Alpha) 5.0LX (Alpha) 5.0L (Alpha) 5.0L (Gen+) Alpha 5.0L EFI (Alpha) 5.0L MPI (Alpha) 5.0LX (Alpha) 5.0L (Gen+) Bravo 5.0L EFI (Bravo) 5.0L MPI (Bravo) 898 250, 260 260 260 300 Tempest (Alpha) 300 Tempest (Alpha) 320 EFI 350 Mag (Alpha) 350 Mag (Alpha) 350 Mag EFI (Gen+) Alpha 350 Mag MPI (Alpha) 350 Mag MPI Horizon (Alpha) 350 Mag MPI (Bravo) 350 Mag MPI Horizon (Bravo) 5.7L (Alpha) 5.7L (Alpha) 5.7L EFI (Alpha) 5.7LX (Alpha) 5.7LX EFI (Alpha) 5.7L Bravo 5.7L EFI (Bravo) MX 6.2L MPI MX 6.2L MPI Horizon

Serial #1564539-1730903 6899058-0B525981 6899058-0B774444 4765100-6899268 6899269-0B773739 6899269-0B773739 0B773740-0F000000

Years1963-1964 1985-1986 1985-1987 1977-1984 1985-1987 1985-1987 1988-1993

Part #18-2171 18-2171 18-2175 18-2171 18-2171 18-2175 18-2175

0F000001 & UP

1994-2007

18-2323

6916779-0B775248 0B774252 & UP 4208730-6218036 6218037-6916779 B527955-0B773242 6330183-6919655 0A331455-0527954 0A331455-0527954 0B527995-0B775129 0F803800-0K999999 0B527955-0F000877

1985-1987 1988-1989 1976-1982 1983-1984 1987 1983-1984 1985-1986 1985-1986 1987 1996-1997 1988-1993

18-2414 18-2414 18-2413 18-2414 18-2175 18-2171 18-2171 18-2175 18-2175 18-2323 18-2175

0L015751 & UP 4762210-6899057 4768000-6218461 6218462-0B525981 6218462-0B773304 6668677-0B430367 0A434310-0B430367 0A543604-0C622418 0A635178-0F000000

1998-2007 1977-1985 1977-1982 1982-1986 1982-1987 1985-1986 1986 1987-1989 1986-1993

18-2412 18-2171 18-2171 18-2171 18-2175 18-2171 18-2175 18-2175 18-2175

0F000001 & UP 0L010019 & UP 0M300000 & UP 0B773305-0F000000

1993-2007 1998-2007 1999-2007 1988-1993

18-2323 18-2412 18-2412 18-2175

0F000001 & UP 0L010035 & UP 0L680003 & UP 0M300000 & UP

1993-2007 1998-2007 2000-2007 2002-2007

18-2323 18-2412 18-2412 18-2412

0F000878 & UP 3385721-4166999 3108723-4887829

1993-2007 1973-1974 1971-1977

18-2323 18-2173 18-2173

638

Early Models

Late Models

MR Cast Coupling

MR Stamped Coupling


18-4442 ENGINE ALIGNMENT TOOL Replaces: 91-57797A3 For use with all #1 units

18-9803 SPANNER NUT WRENCH Replaces: 91-36235

18-9200 SPLINE GREASE 14 oz. Replaces: 92-816391A4

Specialty grease used in the assembly of engine yokes and couplers

18-2200 LOWER UNIT GEAR SET Replaces: 43-96084A4

888 S/N 3106717 & UP #1 Units S/N 3469428 & UP Except, MR/ ALPHA Units (which have no pre-load pin in the top of the drive shaft).

18-2410 FORWARD GEAR SET Replaces: 43-96084A7For: R drive

18-2360 PINION & FORWARD GEAR SET Replaces: 43-828072A313-21 Teeth

18-2206-1 LOWER UNIT GEAR SET Replaces: 43-878087A2 + 43-828073A1, 43-828072A2For: All MR/ALPHA/Gen II (Except Gen II 2.00-2.40 ratios)

18-2409 REVERSE GEAR Replaces: 43-92320TFor: R drive (28 teeth)

18-2406 FORWARD GEAR SET Replaces: 43-878087A2

For: MR/Alpha/Gen II lower S/N D469859 & UP

18-2408 REVERSE GEAR Replaces: 43-828073A1

For: Alpha I/Gen II lower S/N D469859 & UP

639


18-2404 GEAR REPAIR KIT Replaces: 43-803079T1For: R drive Part # 18-2200 18-2202 18-1157 18-1155 18-1159 18-2285 18-3719 18-2299 CONTAINS Description O.E. # Lower Unit Gear Set 43-96084A4 Sliding Clutch 52-66063 Needle Roller Bearing 31-30895 Ball Bearing 30-88957A1 Tapered Roller Bearing 31-35928A1 Shim 15-47397A1 Pinion Nut 11-35921 Tab Washer 14-79447 Qty. 1 1 1 1 1 1 1 1

18-2405 GEAR REPAIR KIT Replaces: 43-803091T1For: MR/Alpha I Part # 18-2652 18-3719 18-2343 18-2298 18-2299 18-2206 18-2285 18-1155 18-1158 18-1117 18-1143 18-2294 18-2202 CONTAINS Description Lower Gear Housing Seal Kit Pinion Nut Washer Tab Washer Tab Washer Gear Set Shim Ball Bearing Needle Roller Bearing Pinion Bearing Alpha Bearing Shim Kit Sliding Clutch O.E. # 26-33144A2 11-35921 12-982721 14-18323 14-79447 43-42934 15-47397A1 30-88957A1 31-30956 31-42647A1 31-36387A1 15-42637A-1 52-66063 Qty. 1 1 1 1 1 1 1 1 1 1 1 1 1

18-2368 LOWER GEARCASE KIT Replaces: 43-803071T1 ALPHA/GEN II 1996-97

18-2369 LOWER GEARCASE KIT Replaces: 43-803069T1 ALPHA/GENII 1991-95PKG. OF 2

18-2407 GEAR SET Replaces: 43-878087A4For: MR/Alpha/Gen II lower gear housings Part # 18-2206 18-1155 18-1117 18-1158 18-1143 18-2294 18-2285 18-3719 18-2343 CONTAINS Description O.E. # Qty. Gear Set 43-42934 1 Ball Bearing 30-88957A1 1 Pinion Bearing 31-42647A1 1 Needle Roller Bearing 31-30956 1 Alpha Bearing 31-36387A1 1 Shim Kit 15-42637A-1 1 Shim 15-47397 1 Pinion Nut 11-35921 1 Washer 12-982721 1

18-2202 SLIDING CLUTCH Replaces: 52-66063, 52-853594T

888 S/N 3784375 & UP #1 Units S/N 3469428 & UP

18-2357 CROSS PIN Replaces: 17-30632

18-2348 18-2348-9 CLUTCH CROSS PIN SPRING Replaces: 24-308931/MC-1/R/MR/Alpha Mercruiser/Gen II lower S/N D469859-F679999 Mercruiser Vazer

18-2166 PROP SHAFT Replaces: 44-66060, 44-66060-3, 44-824110, 44-860308For all #1 & MR/ALPHA Units S/N 2791957 & above. Also for 165 (6 cyl.) S/N 2763442 & above.

18-2254 PROP SHAFT Replaces: 44-850308 Priced per Package

For: Alpha One Gen II S/N 0L100040 & up/Vazer

640


18-2167 DRIVE SHAFT Replaces: 45-41939A1

For all #1 units S/N 2791957 & above except MR/ALPHA Units or units which have been retro-fitted with MR/ALPHA lower units. Also for 165 (6 cyl.) S/N 2763442 & above.


For all MR/ALPHA Units & older units which have been retro-fitted with MR/ALPHA lower units.

18-2331 DRIVE SHAFT

Replaces: 45-853648

For: Ratios 1.47, 1.62, 1.81 & 1.94. Fits: Gen II (1998 & up), (0L100040 & up) For use with: 18-2400 Complete Lower Gear Case

18-2261 DRIVE SHAFT Replaces: 45-816919All Alpha I Generation II Drives (with new style 18-3056 Impeller) Serial #D494569 & above.

18-2346 RETAINER NUT Replaces: 824519For: MR Alpha & Gen II

18-3719 PINION NUT Replaces: 11-35921

18-2359 DRIVE SHAFT NUT SET Replaces: 12-92721 & 11-35921 Contains: 18-3719 Pinion Nut 18-2343 Pinion Nut Washer

18-2286 Replaces: 19755A2

18-2196 Replaces: 19755A4

SHIFT SPOOL ASSEMBLIES

SHIFT SPOOL Model 1A (EZ-Shift) 1B (EZ-Shift) 1C (EZ-Shift) 120/140 120/140 160 165 165 888 888 898/228 225-S 233 470/485 R/MR/Alpha One Alpha One (Gen II)

ASSEMBLY APPLICATION Serial # Part # 1776349 & UP 18-2196 1775193 & UP 18-2196 1777799 & UP 18-2196 2062141-3780849 18-2196 3780850 & UP 18-2286 2065190-2763441 18-2196 2763442-3780849 18-2196 3780850 & UP 18-2286 3106717-3784374 18-2196 3784375 & UP 18-2286 4782330 & UP 18-2286 3856268-4200499 18-2286 4200500 & UP 18-2286 4208730 & UP 18-2286 6225377 & UP 18-2286 D494569 & UP 18-2286

18-3759 THRUST BEARING RING Replaces: 35915

18-2342 THRUST RING Replaces: 681001For: MR/ ALPHA

18-2191 CARRIER BEARING Replaces: 73020A14

For: #1R/MR/Alpha I For: Housings with casting #73020C

641


18-2376 CARRIER BEARING Replaces: 818763A10

For: Alpha Gen II & MR Units For: Housings with casting #73020C1, Mercruiser Vazer

18-2150 SHIFT SHAFT Replaces: 774811 Stainless Steel

18-2353 SHIFT ROD BUSHING ASSEMBLY Replaces: 23-815921A21

18-2154 SHIFT SHAFT HOUSING BUSHING Replaces: 23-30617A2Mercruiser & Alpha 1 (S/N 1684188 & UP)

18-3198 WATER PICK-UP Port Replaces: 934241For: MR Alpha PKG. OF 2

18-3199 WATER PICK-UP Starboard Replaces: 934231For: MR Alpha

For: Gen II

18-2320 SHIFT SHAFT Replaces: 815919A1

18-2130 SHIFT CRANK Replaces: 76865For All #1 Units R/MR/Alpha, Mercruiser Vazer

18-4295 18-4295-9 E-CLIP Replaces: 53-29641For: Gen II

18-2299 TAB WASHER Replaces: 14-79447PKG. OF 2

18-2298 TAB WASHER Replaces: 14-18323

18-3751 SPANNER NUT Replaces: 79448For: Mercruiser Vazer

18-2354 CARRIER SEAL Replaces: 821759A4

18-2707 18-2707-9 COLLAR KEEPER Replaces: 97351For: Bravo

18-1117 PINION BEARING Replaces: 31-42647A1 642

18-1356 PINION BEARING Replaces: 31-54928Model 215 E/H 225TRS, 280 TRS Year 1970-72 1973-76 Model II, TR TR, TRS Year 1973-76 1977-93

18-1142 UPPER PINION BEARING Replaces: 31-32573A1

Priced per Package


18-1193 TAPERED ROLLER BEARING Replaces: 31-33138A1Fits: Gen II (1998-Up), Mercruiser Vazer

18-1143 TAPERED ROLLER BEARING Replaces: 31-36387A1

18-1156 FORWARD GEAR BEARING Replaces: 31-30894A1For: Mercruiser Vazer

18-1161 TAPERED ROLLER BEARING Replaces: 31-35990A1For: Mercruiser Vazer





18-1179 TAPERED ROLLER BEARING Replaces: 31-32575A1, T1For: Gen II F680000 & UP, Mercruiser Vazer

18-1127 TAPERED ROLLER BEARING Replaces: 31-54038A1For: Bravo II - Lower (S/N B664190 & UP)

18-1182 ROLLER BEARING KIT Replaces: 31-30894A5For: Alpha I (Gen II) (1998 & up) (OL100040 & up), Mercruiser Vazer

18-1197 TAPERED FORWARD GEAR BEARING Replaces: 31-828439A2For: Alpha I (Gen II) (1996-97) (OF680000-OK999999)

18-1129 UPPER DRIVE SHAFT BEARING Replaces: 31-86748A1For: Bravo I, II, III - Lower (S/N B664190 & UP)

18-1150 NEEDLE ROLLER BEARING Replaces: 31-92366A1

18-1157 FORWARD GEAR INNER BEARING Replaces: 31-30895, 31-30895TFor: Mercruiser Vazer

18-1158 CARRIER BEARING Replaces: 31-30956,TFor: Mercruiser Vazer

18-1153 BALL BEARING Replaces: 30-63326, 30-63326T

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18-1155 BALL BEARING Replaces: 30-88957A1, T

18-1160 DRIVE BEARING KIT Replaces: 31-35988A2, 31-35988A12

MERCRUISER STERNDRIVE UPPER GEAR HOUSING BEARINGSSterndrive Model 120/140 120/140 120/140 470/485 160 160 165 888 888 225-S 898/228 233 250 255-TRS 260 280-TRS R/MR/Alpha One R/MR/Alpha One R/MR/Alpha One R/MR/Alpha One Alpha One SS Alpha One SS Alpha One Gen II Alpha One Gen II Alpha One Gen II Alpha One Gen II Alpha One Gen II Drive Ratio 1.98 1.98 1.98 1.84 1.68 1.68 1.65 1.5 1.5 1.5 1.65 1.32 1.32 All 1.5 All 1.98/1.84/ 1.65/1.50 1.5 1.32 1.5 Heavy Duty 1.32 1.5 2.40/1.98/ 1.84/1.65 1.5 2.40/1.94/ 1.81/1.62 1.47 2.40/2.00/ 1.94/1.81/ 1.62 Alpha One Gen II II-TR SSM II TR/TRS Bravo I, II, III 1.47 All 1998 & Up 1998 & Up 1973-76 1982-97 1977-93 L100040 - UP L100040 - UP 3377316 - 4794899 ALL 4794900 - UP B664190 & UP 18-1162 18-1162 18-1162 18-1161 18-1142 18-1162 18-1162 18-1162 18-1179 18-1179 18-1129 1996-97 1996-97 F680000 - K999999 F680000 - K999999 18-1160 18-1160 18-1161 18-1142 18-1179 18-1179 1991-95 1991-95 D469859 - F679999 D469859 - F679999 18-1160 18-1160 18-1161 18-1142 18-1165 18-1165 1984-90 1986-89 1986-89 6225577 - UP A545004 - UP A545004 - UP 18-1142 18-1142 18-1165 18-1165 18-1165 1984-90 1984-90 1984-90 6225577 - UP 6225577 - UP 6225577 - UP 18-1160 18-1160 18-1161 18-1142 18-1165 18-1165 18-1165 Years 1964-66 1967 1967-71 1971-82 1976-82 1967 1967-71 1971-81 1971-73 1973-77 1974 1977-82 1975-77 1977 1973-74 1978-82 1975-76 Serial Number 1684188 - 2065186 2062141- 2187468 2187469 - 3134193 3134194 - 6225576 4208730 - 6225576 2065190 - 2182197 2182198 - 3134193 3213658 - UP 3106717 - 3134193 3134194 - UP 3856268 - 4200499 4782330 - 6225576 4200500 - UP 4791300 - 4898729 3377316 - 4203749 4898730 - 6225576 4203750 - 4895399 Drive Gear (Yoke) 18-1160 18-1160 18-1160 18-1160 18-1160 18-1160 18-1160 18-1160 18-1160 18-1160 18-1160 18-1160 18-1162 18-1160 18-1162 Driven Gear 18-1161 18-1161 18-1161 18-1161 18-1161 18-1161 18-1161 18-1161 18-1161 18-1161 18-1161 18-1161 18-1162 18-1161 18-1162 Upper Cap 18-1179 18-1161 18-1179 18-1165 18-1165 18-1161 18-1179 18-1165 18-1165 18-1165 18-1165 18-1165 18-1165 18-1165

IA,IB,IC & EZ Shift All

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Timken Cone # 89449 / Cup 89410 Straight Shoulder Gear Only

Bearing for U-Joint Yoke Use 18-1142 for 1.5:1 Upper Gear Ratio


MERCRUISER STERNDRIVE LOWER GEAR HOUSING BEARINGSSterndrive Model Years Beg. S/N - End. S/N Prop Bearing Carrier Lower Drive Shaft (Pinion) Upper Drive Shaft Inside Forward Gear (Needle) Outside Forward Gear Reverse Gear

60 80/90 I I IA,IB,IC & EZ Shift 120/140 120/140 120/140 470 470/485 160 165 165 888 225/233 898/228 898/228 250 255-TRS 260 280-TRS R MR / Alpha One MR / Alpha One MR / Alpha One (CR) Alpha One SS Alpha One Gen II Alpha One Gen II (CR) Alpha One Gen II Alpha One Gen II (CR) Alpha One Gen II Alpha One Gen II (CR) II II II-TR TR TRS

1965-66 1966-72 1963 1963 1964-66 1967-69 1970-77 1978-82 1976-77 1978-82 1967-69 1970-77 1978-81 1971-77 1974-77 1977 1978-82 1977 1973-74 1978-82 1975-76 1983 1984-90 1984-90

1830753 - 2063740 2063741 - 3225967 1534570 - 1536617 1536618 - 1684187 1684188 - 2065189 2062141 - 2791956 2791957 - 4893634 4893635 - 6225576 4208730 - 4893934 4893835 - 6225576 2065190 - 2763441 2763442 - 4890459 4890460 - UP 3106717 - UP 3856268 - UP 4782330 - 4898729 4898730 - 6225576 4791300 - 4898729 3377316 - 4203749 4898730 - 6225576 4203750 - 4895399 6225577 - UP 6225577 - UP 6225577 - UP

18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158

18-1150 18-1150 18-1150 18-1150 18-1150 18-1150 18-1117 18-1117

18-1153 18-1164 18-1164 18-1164 18-1164 18-1164 18-1164 18-1164 18-1164 18-1164 18-1164 18-1164 18-1164 18-1164 18-1164 18-1164 18-1143 18-1143

18-1157 18-1157 18-1157 18-1157 18-1157 18-1157 18-1157 18-1157 18-1157 18-1157 18-1157 18-1157 18-1157 18-1157 18-1157 18-1157 18-1157 18-1157 18-1157 18-1157

18-1162 18-1156 18-1156 18-1156 18-1159 18-1159 18-1159 18-1159 18-1159 18-1159 18-1159 18-1159 18-1159 18-1159 18-1159 18-1159 18-1159 18-1159 18-1159 18-1159 18-1159 18-1159 18-1159 18-1159

18-1155 18-1155 18-1155 18-1155 18-1155 18-1155 18-1155 18-1155 18-1155 18-1155 18-1155 18-1155 18-1155 18-1155 N/A 18-1155 N/A 18-1155 18-1155 18-1155

1984-90 1986-89 1991-95 1991-95 1996-97 1996-97 1998newer 1998newer 1962-67 1968-69 1973-76 1973-93 1973-93

6225577 - UP A545004 - UP D469859 - F679999 D469859 - F679999 F680000 - K999999 F680000 - K999999 L100040 - UP L100040 - UP 1474909 - 2275488 2398798 - 2671321 3377316 - 4794899 4794900 - UP 4794900 - UP

18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158 18-1158

18-1117 18-1117 18-1117 18-1117 18-1117 18-1117 18-1117 18-1117

18-1143 18-1143 18-1143 18-1143 18-1143 18-1143 18-1143 18-1143 18-1161 18-1161

18-1157 18-1157 18-1157 18-1157 N/A

18-1159 18-1159 18-1156 18-1156 18-1156 18-1162 18-1159

18-1155 18-1155 18-1155 18-1155

N/A 18-1156 N/A N/A N/A

18-1161 Top Bearing / 18-1163 Bottom Bearing

Torrington#B1616 Prop Shaft Drive Gear

#15520 Stamped on Cup Use 18-1173 for 2.40:1 ratio only (new style lower gears) our 18-2206

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18-2375D

18-2244 18-22441-9(PKG. OF 50 WITHOUT GASKET)

18-2375 18-23751-9(PKG. OF 50 WITHOUT GASKET)

18-2349 SHIFT SHAFT SLEEVE Replaces: 23-67370

DRAIN PLUG Replaces: 10-79953A2

For: #1/R/MR/Alpha/Alpha I Gen II Both Upper And Lower Units

DRAIN PLUG MAGNET Replaces: 10-14834A1, 22-67892A1 (Magnet)For: Alpha MR/Gen II lower units Not to be used on #1/R lower units

18-2164 CONTROL BOX LEVER Replaces: 34682

18-2165 CONTROL BOX CAM Replaces: 59369 18-3701D

18-4220 THRUST WASHER Replaces: 13171, 77987 V-6, Outboards & Mercruiser Sterndrives

18-3784 THRUST WASHER Replaces: 805100Fits: Bravo III (Front)

18-3701 PROP NUT KIT Replaces: 11-52707A1Part # 18-3200 18-3700 CONTAINS O.E. # Description 14-31210, 14-816629 Tab Washer 11-52707 Prop Nut

18-3755 PROP NUT KITFits: Bravo III (Front)

PKG. OF 10

18-3756 PROP NUT KITFits: Bravo III (Rear) PKG. OF 10

18-3200 18-3200-9 TAB WASHER Replaces: 14-31210, 14-816629

18-3787 TAB WASHER Replaces: 805101TFits: Bravo III (Rear)

18-3788-9 TAB WASHER Replaces: 14-34817Fits: Bravo II

18-3783 PROP NUT Replaces: 11-859131Fits: Bravo III (Front)

18-3785 PROP NUT Replaces: 11-826711 27Fits:Bravo II

18-3786 PROP NUT Replaces: 11-862907Fits: Bravo III (Rear)

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Priced per Package Items ending in "D" are Display Packaged - Regular number is Non-Display


18-3700 PROP NUT Replaces: 11-52707

18-3714 BRASS CASTLE WASHER Replaces: 12-31211A2Fits: Alpha/Bravo I (without Flo-Torq II Hub) NOTE: Fits above product with rubber hub propellers (non-Flo-Torq II)

18-4444 PROP WRENCH Replaces: 91-95830A1

18-4459 PROP WRENCH Replaces: 91-821887A-1, 91-859046Q4

18-4446 PROP WRENCH KITPart # 18-3200 18-3700 18-4444 CONTAINS O.E. # 14-31210, 14-816629 11-52707 91-95830A1 Description Tab Washer Prop Nut Prop Wrench

1/8"

1/8" 14"1/8"

71 /2"

1/8"

18-2103 POWER TRIM HOSE Replaces: 32-86036, 32-86036Q

18-2105 POWER TRIM HOSE Replaces: 32-45973

12"

21" 1/8"

11 3/4" 1/8" 1/8" 1/8"

18-2106 POWER TRIM HOSE Replac

Mercruiser IO Outdrive Parts

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