HomeKohlerKohler 150 REOZJ4

Kohler 150 REOZJ4 Generator Set

The Kohler 150 REOZJ4 is a 150 kW (187.5 kVA) diesel standby generator set powered by a John Deere 6068HFG08 engine. It is available at 120/208 V, 120/240 V, 277/480 V and 347/600 V, 3-phase, 60 Hz and rated 225 A. It holds about 28.5 L (7.5 gal) of oil and 35.6 L (9.4 gal) of coolant, with a maximum ambient rating of 40 °C. Starting uses 2 batteries rated 400 CCA at 12 V. The set measures 3531×1191×2276 mm (139.0×46.9×89.6 in), weighs about 3532 kg (7787 lb) and produces 71 dBA at 7 m. An integrated tank holds 923 L (243.8 gal), roughly 24 hours of runtime. The same 6068HFG08 engine also powers generator sets from MQ Power.

150 kW
Standby
6.8 L
Displacement
28.5 L
Oil capacity
5
Document types

How to read your Kohler serial & model number →

Specifications

Fueldiesel
Frequency60.0 Hz
Standby power150 kW
Standby kVA187
Prime power139 kW
EmissionsTier 4 Final
ControllerDecision-Maker 3500
Oil capacity28.5 L
AlternatorKohler 4S12X
Voltage options120/208 V, 120/240 V, 277/480 V, 347/600 V
Phase3
Rated current225 A
Power factor0.8
Battery cranking400 CCA
Battery voltage12 V
Battery quantity2
Coolant capacity35.6 L
Max ambient40 °C
Dimensions (L×W×H)3531×1191×2276 mm
Dry weight3532 kg
Sound level71.0 dBA @ 7 m
Fuel tank923.0 L
Tank runtime24 hr

Engine

John Deere 6068HFG08
Oil capacity15.6 L
Coolant capacity35.6 L
Displacement6.8 L
AspirationTurbocharged, Charge Air Cooled
Rated speed1800 rpm

Maintenance & consumables

for the John Deere 6068HFG08
ItemSpecCapacityPart #Interval
Fuel filterPrimary find
Oil filterCartridge×1 find

Compatible filters for the John Deere 6068HFG08 — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.

  • Fuel filter (primary): Kohler GM50006 Kohler GM48727 Kohler GM50074 John Deere AT433554 John Deere RE522688
  • Oil filter: Kohler GM32809 Kohler 360031 Kohler 223604 Kohler ED0021752840S Kohler 223673

Common questions

What is the power rating of the Kohler 150 REOZJ4?

The Kohler 150 REOZJ4 is rated 150 kW standby (187.5 kVA).

What engine does the Kohler 150 REOZJ4 use?

The Kohler 150 REOZJ4 is powered by the John Deere 6068HFG08 engine.

What fuel does the Kohler 150 REOZJ4 use?

The Kohler 150 REOZJ4 runs on diesel.

What is the oil capacity of the Kohler 150 REOZJ4?

The John Deere 6068HFG08 engine in the Kohler 150 REOZJ4 has an oil capacity of 15.6 liters.

What alternator does the Kohler 150 REOZJ4 use?

The Kohler 150 REOZJ4 uses a Kohler 4S12X alternator.

Parts

4
Part #DescriptionQtySystem
GM90735Air Cleaner1Air filter Amazon eBay PartsGeek
GM91358Element, Air Cleaner1Air filter Amazon eBay PartsGeek
GM91647Hose, Hump1Hose PartsGeek
GM92823Element, Air Cleaner Safety1Air filter Amazon eBay PartsGeek

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%12.13.2
Prime50%20.45.4
Prime75%29.17.7
Prime100%38.610.2
Standby25%13.23.5
Standby50%22.35.9
Standby75%32.28.5
Standby100%42.411.2

Available documents

Brochure — GSA Product List (Kohler)Brochure — Kohler CaseStudy MEMA (Kohler)Spec sheet — Kohler-150REOZJ4-Tier-4 (Kohler)Spec sheet — g5430 (Kohler)Reference — FinalGSAPriceListEffective 3-20-2023 (Kohler)Reference — GSAPriceList (Kohler)Reference — adv8722 (Kohler)Parts manual — tp6894 (Kohler)Wiring diagram — tp6924 (Kohler)

Other sets with this engine