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Kohler 500REOZJ Generator Set

The Kohler 500REOZJ is a 510 kW (638 kVA) Diesel standby generator set powered by a John Deere 6135HFG75 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, 60 Hz and rated 1770 A. 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 group-Two batteries rated 950 CCA at 12 V. The set measures 3630×1425×1993 mm (142.9×56.1×78.5 in), weighs about 3883 kg (8561 lb) and produces N/A dBA at N/A m. An integrated tank holds N/A L (None gal), roughly N/A hours of runtime.

510 kW
Standby
13.5 L
Displacement
42.0 L
Oil capacity
4
Document types

How to read your Kohler serial & model number →

Typical fuel consumption for 500–505 kW Diesel generators →

Compare with other 500–505 kW Diesel generators →

Service parts for the 500REOZJ

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

Fuel system

1 required
GM80460Fuel filter (primary)$48.97PartsGeek

Oil system

1 required

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

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power510 kW
Standby kVA638
Prime power510 kW
EmissionsTier 2 EPA-Certified
ControllerAPM402, APM603, Decision-Maker 3000, Decision-Maker 550, Decision-Maker 6000, Decision-Maker r 6000
Oil capacity42.0 L
Alternator5M4024, 5M4027, 5M4028, 5M4270, 5M4272
Voltage options120/208 V, 127/220 V, 139/240 V, 220/380 V, 240/416 V, 277/480 V, 347/600 V
Phase3
Rated current1770 A
Power factor0.8
Circuit breaker1770 A
Battery groupTwo
Battery cranking950 CCA
Battery voltage12 V
Battery quantity2
Coolant capacity67.2 L
Max ambient50 °C
Dimensions (L×W×H)3630×1425×1993 mm
Dry weight3883 kg
Tank runtimeN/A hr

Engine

John Deere 6135HFG75
Oil capacity42.0 L
Coolant capacity67.2 L
Displacement13.5 L
AspirationTurbocharged, Charge Air-Cooled
Rated speed1800 rpm

Maintenance & consumables

for the John Deere 6135HFG75
ItemSpecCapacityPart #Interval
Air filterDry
Fuel filterPrimaryGM80460 Amazon eBay $93.00 PartsGeek $48.97
Fuel filterSecondary
Oil filterCartridgeGM80434 Amazon eBay $118.44
Coolant67.2 L
Oil42.0 L

Compatible filters for the John Deere 6135HFG75 — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.

  • Air filter: John Deere AH115833 John Deere RE67829 John Deere AZ61133 John Deere AZ61134 Donaldson P532931

Service specifications

30
TypeItemValueUnitCondition
Other10 in. weld flange bolt circle diameter B361.95mm (14.25 in.)
Other10 in. weld flange outside diameter C406.4mm (16.0 in.)
Other10 in. weld flange quantity of bolts / bolt hole diameter D12, 25.40mm (1.00 in.)
Other12 in. weld flange bolt circle diameter B431.80mm (17.00 in.)
Other12 in. weld flange outside diameter C482.6mm (19.0 in.)
Other12 in. weld flange quantity of bolts / bolt hole diameter D12, 25.40mm (1.00 in.)
Other14 in. weld flange bolt circle diameter B476.25mm (18.75 in.)
Other14 in. weld flange outside diameter C533.4mm (21.0 in.)
Other14 in. weld flange quantity of bolts / bolt hole diameter D12, 28.58mm (1.13 in.)
Other16 in. weld flange bolt circle diameter B539.75mm (21.25 in.)
Other16 in. weld flange outside diameter C596.9mm (23.5 in.)
Other16 in. weld flange quantity of bolts / bolt hole diameter D16, 28.58mm (1.13 in.)
Other18 in. weld flange bolt circle diameter B577.85mm (22.75 in.)
Other18 in. weld flange outside diameter C635.0mm (25.0 in.)
Other18 in. weld flange quantity of bolts / bolt hole diameter D16, 31.75mm (1.25 in.)
Other20 in. weld flange bolt circle diameter B635.00mm (25.00 in.)
Other20 in. weld flange outside diameter C698.5mm (27.5 in.)
Other20 in. weld flange quantity of bolts / bolt hole diameter D20, 31.75mm (1.25 in.)
Other5 in. weld flange bolt circle diameter B215.90mm (8.50 in.)
Other5 in. weld flange outside diameter C241.30mm (9.50 in.)
Other5 in. weld flange quantity of bolts / bolt hole diameter D8, 22.23mm (0.88 in.)
Other6 in. weld flange bolt circle diameter B254.0mm (10.0 in.)
Other6 in. weld flange outside diameter C279.4mm (11.0 in.)
Other6 in. weld flange quantity of bolts / bolt hole diameter D8, 22.23mm (0.88 in.)
Other8 in. weld flange bolt circle diameter B298.45mm (11.75 in.)
Other8 in. weld flange outside diameter C342.9mm (13.5 in.)
Other8 in. weld flange quantity of bolts / bolt hole diameter D8, 22.23mm (0.88 in.)
OtherWeld flange angle A (10, 12, 14 in. nominal pipe size)30deg.
OtherWeld flange angle A (16, 18, 20 in. nominal pipe size)22.5deg.
OtherWeld flange angle A (5, 6, 8 in. nominal pipe size)45deg.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

How many kW is the Kohler 500REOZJ?

The Kohler 500REOZJ is rated 510 kW standby (638.0 kVA).

What engine is in the Kohler 500REOZJ?

The Kohler 500REOZJ is powered by the John Deere 6135HFG75 engine.

What fuel does the Kohler 500REOZJ use?

The Kohler 500REOZJ runs on Diesel.

How much oil does the Kohler 500REOZJ take?

The John Deere 6135HFG75 engine in the Kohler 500REOZJ has an oil capacity of 42.0 liters.

What alternator does the Kohler 500REOZJ use?

The Kohler 500REOZJ uses a 5M4024, 5M4027, 5M4028, 5M4270, 5M4272 alternator.

What oil filter does the Kohler 500REOZJ use?

The Kohler 500REOZJ uses oil filter part number GM80434.

What fuel filter fits the Kohler 500REOZJ?

The Kohler 500REOZJ uses fuel filter part number GM80460.

What air filter does the Kohler 500REOZJ use?

The Kohler 500REOZJ uses air filter part numbers JOHN DEERE AH115833, JOHN DEERE RE67829.

Parts

13model family
Part #DescriptionQtySystem
300REZXD300 KW L.P./N.G. GENSET1Service part / kit Amazon eBay
350EOZCS350 KW DIESEL COMMERCIAL MARINE GENSET1Service part / kit Amazon eBay
350REOZJC350 KW DIESEL GENSET1Service part / kit Amazon eBay $1799.95
350REOZJD350 KW DIESEL GENSET1Service part / kit Amazon eBay $109858.00
350REZXD350 KW L.P./N.G. GENSET1Service part / kit Amazon eBay
400REOZJC400 KW DIESEL GENSET1Service part / kit Amazon eBay $1799.95
400REOZJD400 KW DIESEL GENSET1Service part / kit Amazon eBay $79995.00
500EOZCS500 KW DIESEL COMMERCIAL MARINE GENSET1Service part / kit Amazon eBay
500REOZJC500 KW DIESEL GENSET1Service part / kit Amazon eBay $1799.95
KD1250-41250 KW DIESEL TIER 4 GENSET1Service part / kit Amazon eBay
KD1250A1250 kW Diesel Genset1Service part / kit Amazon eBay
KG8080 kW L.P./N.G. Genset1Service part / kit Amazon eBay $39.90
KG80R80 kW L.P./N.G. Genset1Service part / kit Amazon eBay

Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h
Standby25%38.810.2
Standby50%75.319.9
Standby75%104.627.6
Standby100%134.535.5

Available documents

Spec sheet (Kohler)Spec sheet — Kohler-500REOZJB (Kohler)Spec sheet — g5355 (Kohler)Spec sheet — g5404 (Kohler)Spec sheet — g5622 (Kohler)Reference — G6-39 0918AZ (Kohler)Reference — StHugues CaseStudy (Kohler)Parts manual — kohler consolidated price list (Kohler)Service manual — tp6797 (Kohler)Service manual — tp7138 (Kohler)Service manual — tp7149 (Kohler)
Full service, cheapest listings

Priced items from this model's own parts manual.

Fuel filter (primary) GM80460$48.97
Oil filter GM80434$118.44
2 priced items$167.41