Relentless Power.Legendary Performance. © 2008 by Kohler Co.
2 Cylinders » 1248 cc » 18.8 kW/25.2 HP » 3000 RPM » 55.3 ft. lbs. @2000 RPM
Kohler® DieselModel KD625-2
Certification EPA TIER 4 97/68/CE ECE R 24
Features4-Stroke Air-Cooled Diesel EngineDirect InjectionFlywheel Fan Air CoolingMechanical Fuel PumpFull-Pressure Lubrication with Gear PumpFull Flow Oil FilterAutomatic Extra Fuel Starting DeviceVariable Speed GovernorAluminum Crankcase12 V Electric StarterCounter-Clockwise Rotation (From PTO Side)Aluminum Alloy Independent HeadsRe-Borable Independent Cast-Iron CylindersPower Take-Off on Crankcase
ApplicationsPower Buggy
Vibrating RollerGenerator
WelderHigh-Pressure CleanerHydraulic Power Pack
Agricultural PumpTwo-Wheel Tractor
Stump GrinderChipper
PAGE: 1 OF 4
Kohler® DieselModel KD625-2
© 2008 by Kohler Co.KohlerEngines.com
SpecificationsCylindersDisplacementBoreStrokeCompression RatioRating kW/HP
Max. TorqueMax. Torque 3 P.T.O.Counterclockwise RotationEngine Speed - 3 P.T.O. RatioMinimum Idling Speed R.P.M.Fuel Tank CapacityOil ConsumptionOil CapacityMin. Allowable Oil PressureMax. Allowable Incline for Short Periods of Operation (Peak Values)Volume of Air Required for Correct Combustion @ 3000 R.P.M.Volume of Air Required for Correct Cooling @ 3000 R.P.M.Dry WeightRecommended BatteryMinimum Pulley Diameters for Belt Drive
No. of Cylinders 2cc/cu. in. 1248/76.2mm/in. 95/3.7mm/in. 88/3.5 17.5:1NB (80/1269/CEE) ISO 1585 18.8/25.2NA ISO 3046 IFN 17.4/23.3N·m/ft. lbs. @ 2000 RPM 75/55.3N·m/ft. lbs. 30.0/22.1
1:1 1000-1100liters/quarts 10/10.6kg/h/lb/h 0.013/0.029liters/quarts 2.8/2.6bar/psi 1.5-2/21.8-29 25° (35°)liters/min/cfm 1870/66liters/min/cfm 26300/929kg/lbs 110/242.5V/Ah 12/66
Sound Pressure Level dB (A)Sound Pressure Level Polar Diagram Open Field at 7 Meters - No Load Running Engine.
3000 RPM2500 RPM2000 RPM1500 RPM
dB (A)
70
75
80
85
D1
D1
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D1 (mm) ≥ 136 [162+L1 (mm)] N (kW) n (RPM)D2 (mm) ≥ 204 [260+L2 (mm)] N (kW) n (RPM)Max. allowable axial load in both directions A-B = 600 kg/1323 lb
f
HP kW Nm Kgm
g/kWh g/HPh
RPM
HP kW Nm Kgm
g/kWh g/HPh
RPM
HP kW Nm Kgm
g/kWh g/HPh
RPM
PAGE: 3 OF 4© 2008 by Kohler Co. KohlerEngines.com
Kohler® DieselModel KD625-2
N Power Curve - 80/1269/CEE - ISO 1585 -NB Power Curve - ISO 3046/1 - IFN -NA Power Curve - ISO 3046/1 - ICXN -MN Torque Curve - (N curve)MB (B Curve - MA (A curve)C Specific Fuel Consumption - (NB curve)
Curves
Engine Power kW
RPM Intermittent (NB) Continuous (NA)3000 18.8 17.41800 13.5 12.01500 10.7 9.7
Output Power for Fixed Speed Application (Including Generator Sets)
KD625-2 NR @ 3000 RPM KD625-2 B2 NR @ 2800 RPM
KD625-2 @ 3000 RPM
Relentless Power.Legendary Performance.
PAGE: 4 OF 4 KOHLER Co., Kohler, Wisconsin 53044 • Tel: 920-457-4441 800-544-2441 • Fax: 920-459-1570 • KohlerEngines.com
Form TP-2615 5/08 © 2008 by Kohler Co. Printed in U.S.A.
Kohler® DieselModel KD625-2
Technical Drawings
141.0/5.55 135.0/5.31168.0/6.61
186.0/7.32198.0/7.79
230.0/9.05216.0/8.50
195.0/7.67425.0/16.73
154.
0/6.
0618
5.0/
7.28
50.0
/1.
9675
.0/
2.95
R11.0/0.43
107.
0/4.
21
Ø23.0/0.90
Ø9.0/0.35
367.
0/14
.44
161.0/6.33
557.0/21.9
141.0/5.55
340.0/13.38
144.0/5.66
217.0/8.54
188.0/7.40
178.
0/7.
00
599.
0/23
.58
421.
0/16
.51
229.
0/9.
0117
8.0/
7.00
176.
6/6.
9516
4.0/
6.45
434.0/17.08
285.0/11.22
162.
0/6.
3716
2.0/
6.37
397.
0/15
.62
47.0/1.85
R115.0/
4.52
160.0/6.29 130.0/5.11
181.0/7.12Ø100.0/3.93
Ø325.0/12.79
633.0/24.92236.0/9.29 122.0/4.80 275.0/10.82
182.0/7.16
38.0/1.49
36.0/1.41
5.0/0.1914.0/0.55
94.0/3.7021.0/0.82
8.0/0.3152.0/2.04
207.0/8.14542.0/21.33
152.0/5.98166.0/6.53 54.0/2.12
31.0
/1.
22
R320.0/12.59
6.0/0.23 13.0/0.51
Ø12
0.0/
4.72
Ø48
.0/1
.88
Ø60
.0/2
.36
10.0/0.3920.0/0.78
Ø100.0/3.93
A
A
Ø17
9.74
2/7.
076
Ø29
1.0/
11.4
5Ø
190.
0/7.
48Ø
160.
0/6.
29.
Ø60
.0/2
.36
Standard FeaturesElectric Start with 12 V Starter Motor and AlternatorManual Throttle Control (Fixed)Oil Bath Air Filter with Cyclonic PrefilterExternal Oil FilterOil Pressure SwitchCombined Manifold and Exhaust MufflerEngine FeetPower Take-Off on FlywheelKeyswitch PanelFuel Lift PumpCounter-Clockwise Rotation on Power Take-Off SideAutomatic Extra Fuel DeviceSound-Proofing
AccessoriesDifferent Guards According to UseRange of AlternatorsCompression ReleaseRemote Air FilterCyclonic Air PrefilterRange of Flywheels for Various ClutchesHydraulic Pump AdaptersRange of Fuel Tanks of Various SizesMufflers and Exhaust PipesControlsPulleys
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