HomeKohlerKohler 50ROZ

Kohler 50ROZ Generator Set

The Kohler 50ROZ is a 55 kW (69 kVA) Diesel standby generator set powered by a John Deere 4039T engine. It is available at 120/208 V, 120/240 V, 127/220 V, 139/240 V, 220/380 V, 277/480 V and 347/600 V, 3-phase, 60 Hz and rated 191 A. It holds about 13.2 L (3.5 gal) of oil and 18 L (4.8 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses 1 battery rated 640 CCA at 12 V. The set measures 2083×737×1093 mm (82.0×29.0×43.0 in) and weighs about 823 kg (1814 lb).

55 kW
Standby
3.92 L
Displacement
13.2 L
Oil capacity
6
Document types

How to read your Kohler serial & model number →

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power55 kW
Standby kVA69
Prime power50 kW
ControllerDecision-Maker 1, Decision-Maker 340, Engine Gauge Box
Oil capacity13.2 L
Voltage options120/208 V, 120/240 V, 127/220 V, 139/240 V, 220/380 V, 277/480 V, 347/600 V
Phase3
Rated current191 A
Power factor0.8
Battery cranking640 CCA
Battery voltage12 V
Battery quantity1
Coolant capacity18 L
Max ambient50 °C
Dimensions (L×W×H)2083×737×1093 mm
Dry weight823 kg

Engine

John Deere 4039T
Oil capacity13.2 L
Coolant capacity18.0 L
Displacement3.92 L
AspirationTurbocharged
Rated speed1800 rpm

Maintenance & consumables

for the John Deere 4039T
ItemSpecCapacityPart #Interval
Fuel filterPrimary223414 Amazon eBay $24.57
Oil filter229678 Amazon eBay $21.99

Common questions

What is the power rating of the Kohler 50ROZ?

The Kohler 50ROZ is rated 55 kW standby (69.0 kVA).

What engine does the Kohler 50ROZ use?

The Kohler 50ROZ is powered by the John Deere 4039T engine.

What fuel does the Kohler 50ROZ use?

The Kohler 50ROZ runs on Diesel.

What is the oil capacity of the Kohler 50ROZ?

The John Deere 4039T engine in the Kohler 50ROZ has an oil capacity of 13.2 liters.

Parts

6
Part #DescriptionQtySystem
PA-324467Exhaust Silencer, IndustrialService part / kit buy
PA-324468Exhaust Silencer, CriticalService part / kit buy
PA-324469Exhaust Silencer, IndustrialService part / kit buy
PA-324472Exhaust Silencer, IndustrialService part / kit buy
PA-352662Exhaust Silencer, CriticalService part / kit buy
PA-352663Exhaust Silencer, CriticalService 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%4.51.2
Prime50%7.21.9
Prime75%9.82.6
Prime100%11.73.1
Standby25%6.11.6
Standby50%8.72.3
Standby75%12.13.2
Standby100%16.34.3

Available documents

BrochureSpec sheetReferenceParts manualService manualWiring diagram