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Kohler KD425 Generator Set

The Kohler KD425 is a 11 kW (13.7 kVA) Diesel standby generator set powered by a Kohler KD425-2 engine. It operates at 60 Hz. It holds about 4.2 L (1.1 gal) of oil and 4 L (1.1 gal) of coolant. Starting uses 600 group-V/CCA Standard, Heavy-Duty batteries rated 640 CCA at 12 V. The set weighs about 53 kg (117 lb) and produces 82 dBA at 7 m. An integrated tank holds 4 L (1.1 gal). The same KD425-2 engine also powers generator sets from SDMO.

11 kW
Standby
0.851 L
Displacement
4.2 L
Oil capacity
5
Document types

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Specifications

FuelDiesel
Frequency60.0 Hz
Standby power11 kW
Standby kVA13
Prime power9 kW
EmissionsEPA TIER 2
Oil capacity4.2 L
Battery groupV/CCA Standard, Heavy-Duty
Battery cranking640 CCA
Battery voltage12 V
Battery quantity600
Dry weight53 kg
Sound level82.0 dBA @ 7 m
Fuel tank4.0 L

Engine

Kohler KD425-2
Oil capacity1.8 L
Coolant capacity4.0 L
Displacement0.851 L
Rated speed3600 rpm

Maintenance & consumables

for the Kohler KD425-2
ItemSpecCapacityPart #Interval
Air filter250 hr find
Fuel filter250 hr find
Oil filter50 hr find
Belt find
Coolant
Coolant filter find
Oil50 hr

Common questions

What is the power rating of the Kohler KD425?

The Kohler KD425 is rated 11 kW standby (13.7 kVA).

What engine does the Kohler KD425 use?

The Kohler KD425 is powered by the Kohler KD425-2 engine.

What fuel does the Kohler KD425 use?

The Kohler KD425 runs on Diesel.

What is the oil capacity of the Kohler KD425?

The Kohler KD425-2 engine in the Kohler KD425 has an oil capacity of 1.8 liters.

Troubleshooting

3

Symptoms & remedies

SymptomCause
Black smokeFUEL CIRCUIT: Clogged pipes, Clogged fuel filter, Air inside fuel circuit, Clogged tank breather hole, Faulty fuel pump, Injector jammed, Jammed injection pump delivery valve, Wrong injector setting, Excessive plunger blow-by, Jammed injection pump delivery control, Wrong injection pump setting
Too low oil pressureLUBRICATION: Oil level too high, Jammed pressure relief valve, Worn oil pump, Air inside oil suction pipe, Faulty pressure gauge or switch, Clogged oil suction pipe
Oil and fuel dripping from exhaustLUBRICATION: Oil level too high, Jammed pressure relief valve, Worn oil pump, Air inside oil suction pipe, Faulty pressure gauge or switch, Clogged oil suction pipe, ELECTRIC: Battery discharged, Wrong or inefficient cable connection, Defective ignition switch, Defective starter motor

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

9
Part #DescriptionQtySystem
00365R0010Extractor for camshaft gearExtractor buy
00365R0020Extractor for removing flywheel ringExtractor buy
00365R0430Injector casingInjector casing buy
00365R0890Extractor for crankshaft gearExtractor buy
00365R0900Extractor for crankcase bushesExtractor buy
00365R0910Tool for crankshaft installationTool buy
51499Filtre à huileOil filter buy
ED0053031740Manuel d'Atelier KD 425-2_cod. ED0053031740_1° ed_ rev. 00Service part / kit buy
KD425-2Workshop Manual_cod. ED0053031750_1° ed_rev. 00Service part / kit buy

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h
Prime
Standby

Available documents

Engine specSpec sheetOwner's manualParts manualService manual