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Kohler 400REOZJ Generator Set

The Kohler 400REOZJ is a 400 kW (500 kVA) Diesel standby generator set powered by a John Deere 6135HF485 engine. It is available at 120/208 V, 127/220 V, 139/240 V, 220/380 V, 240/416 V, 277/480 V and 347/600 V, 3-phase and 60 Hz. It holds about 42 L (11.1 gal) of oil and 67.2 L (17.8 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses 2 batteries rated 925 CCA at 12 V. The set measures 3630×1725×1993 mm (142.9×67.9×78.5 in). The same 6135HF485 engine also powers generator sets from Generac.

400 kW
Standby
13.5 L
Displacement
42.0 L
Oil capacity
6
Document types

How to read your Kohler serial & model number →

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power400 kW
Standby kVA500
Prime power365 kW
EmissionsTier 3 EPA-Certified
ControllerAPM402, APM603, Decision-Maker 550, Decision-Maker 6000
Oil capacity42.0 L
Voltage options120/208 V, 127/220 V, 139/240 V, 220/380 V, 240/416 V, 277/480 V, 347/600 V
Phase3
Power factor0.8
Battery cranking925 CCA
Battery voltage12 V
Battery quantity2
Coolant capacity67.2 L
Max ambient50 °C
Dimensions (L×W×H)3630×1725×1993 mm

Engine

John Deere 6135HF485
Oil capacity42.0 L
Coolant capacity67.2 L
Displacement13.5 L
AspirationTurbocharged, Charge Air-Cooled
Rated speed1800 rpm

Maintenance & consumables

for the John Deere 6135HF485
ItemSpecCapacityPart #Interval
Fuel filterPrimaryGM80460 buy
Fuel filterSecondary find
Oil filterCartridge×1GM80434 Amazon eBay
CoolantJohn Deere COOL-GARD™II, John Deere COOL-GARD II PG, ASTM D6210
Oil

Common questions

What is the power rating of the Kohler 400REOZJ?

The Kohler 400REOZJ is rated 400 kW standby (500.0 kVA).

What engine does the Kohler 400REOZJ use?

The Kohler 400REOZJ is powered by the John Deere 6135HF485 engine.

What fuel does the Kohler 400REOZJ use?

The Kohler 400REOZJ runs on Diesel.

What is the oil capacity of the Kohler 400REOZJ?

The John Deere 6135HF485 engine in the Kohler 400REOZJ has an oil capacity of 42.0 liters.

Parts

1
Part #DescriptionQtySystem
PA-354880Exhaust Silencer, Critical (kit)Service part / kit Amazon eBay

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
Prime25%29.67.8
Prime50%52.113.8
Prime75%75.119.8
Prime100%101.326.8
Standby25%31.98.4
Standby50%57.915.3
Standby75%83.822.1
Standby100%115.730.6

Available documents

BrochureSpec sheetReferenceParts manualService manualWiring diagram