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Kohler KD 425-2 Generator Set

The Kohler KD 425-2 is a 13 kW prime generator set powered by a Kohler KD425-2 engine. 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.

0.851 L
Displacement
4.2 L
Oil capacity
5
Document types

How to read your Kohler serial & model number →

Service parts for the KD 425-2

Grouped by system, with how many of each the parts manual calls for.

Oil system

1 required

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

Prime power13 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

Same engine, other brands

1 brand

The Kohler KD425-2 in this set also powers 1 generator set sold under 1 other brand. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.

BrandModels
SDMOWELDARC 300 TDE XL C

Maintenance & consumables

for the Kohler KD425-2
ItemSpecCapacityPart #Interval
Air filter—250 hr
Fuel filter—250 hr
Oil filterFiltre à huile51499 Amazon eBay
Battery—
Belt—
Coolant—
Coolant filter—
Oil—50 hr
Spark plug—

Common questions

Which engine powers the Kohler KD 425-2?

The Kohler KD 425-2 is powered by the Kohler KD425-2 engine.

What's the oil capacity on a Kohler KD 425-2?

The Kohler KD425-2 engine in the Kohler KD 425-2 has an oil capacity of 1.8 liters.

How much coolant does the Kohler KD 425-2 hold?

The Kohler KD 425-2 cooling system holds 4 liters (1.1 US gallons) for the engine, per the manufacturer specification sheet.

What is the sound level of the Kohler KD 425-2?

The Kohler KD 425-2 is rated at 82.0 dBA at 7 m, per the manufacturer specification sheet.

What is the dry weight of the Kohler KD 425-2?

The Kohler KD 425-2 has a dry weight of 53 kg (116 lb).

What size fuel tank does the Kohler KD 425-2 have?

The Kohler KD 425-2 has a 4 liter (1 US gallon) fuel tank.

How many cold cranking amps does the Kohler KD 425-2 require?

The Kohler KD 425-2 uses 600 batteryies, 12 V each, 640 CCA, group V/CCA Standard, Heavy-Duty, per the manufacturer specification sheet.

Which oil filter part number does the Kohler KD 425-2 take?

The Kohler KD 425-2 uses oil filter part number 51499.

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 Amazon eBay
00365R0020Extractor for removing flywheel ringExtractor Amazon eBay
00365R0430Injector casingInjector casing Amazon eBay
00365R0890Extractor for crankshaft gearExtractor Amazon eBay
00365R0900Extractor for crankcase bushesExtractor Amazon eBay
51499Filtre à huileOil filter Amazon eBay
00365R0910Tool for crankshaft installationService part / kit Amazon eBay
ED0053031740Manuel d'Atelier KD 425-2_cod. ED0053031740_1° ed_ rev. 00Service part / kit Amazon eBay
KD425-2Workshop Manual_cod. ED0053031750_1° ed_rev. 00Service part / kit Amazon eBay $4700.00 FridayParts $229.99

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.

Available documents

Engine spec — Diesel Full Line (Kohler)Engine spec — KD425 2 (Kohler)Engine spec — Kohler Diesel Engines (Kohler)Spec sheet — Kohler Diesel KD425-2 (Kohler)Spec sheet — Kohler-SDMO-product-brochure (Kohler)Spec sheet — rehlko portable generators full product-line digit-111-mk-pw-pr-do-en-241 (Kohler)Reference — Rehlko Diesel Full Line (Kohler)Owner's manual — KohlerKd4252UsersManual219779.1046293863 (Kohler)Owner's manual — ed0053028730 om kd330 425 (Kohler)Parts manual — Diesel Full Line Rehlko (Kohler)Service manual — ED0053031750 R00 MO KD425-2 EN (Kohler)Service manual — KD625 2 SM FR (Kohler)Service manual — kd425 2 service (Kohler)

This page was generated from the 13 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.

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