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Kohler 10REOZD Generator Set

The Kohler 10REOZD is a 10 kW (12.5 kVA) Diesel standby generator set powered by a Yanmar 3TNV82A engine. It is available at 120/240 V, 120/208 V, 127/220 V, 139/240 V, 220/380 V and 277/480 V, 60 Hz. It holds about 3.6 L (1.0 gal) of oil and 4.1 L (1.1 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses 1 battery rated 650 CCA at 12 V. The set measures 1730×860×899 mm (68.1×33.9×35.4 in).

10 kW
Standby
1.33 L
Displacement
3.6 L
Oil capacity
7
Document types

How to read your Kohler serial & model number →

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power10 kW
Standby kVA12
Prime power9 kW
EmissionsEPA-Certified for Stationary Emergency Applications
ControllerDecision-Maker 3000
Oil capacity3.6 L
Voltage options120/240 V, 120/208 V, 127/220 V, 139/240 V, 220/380 V, 277/480 V
Power factor0.8
Battery cranking650 CCA
Battery voltage12 V
Battery quantity1
Coolant capacity4.1 L
Max ambient50 °C
Dimensions (L×W×H)1730×860×899 mm

Engine

Yanmar 3TNV82A
Oil capacity3.6 L
Coolant capacity4.1 L
Displacement1.33 L
Rated speed1800 rpm

Maintenance & consumables

for the Yanmar 3TNV82A
ItemSpecCapacityPart #Interval
Oil filterFull flow, cartridge252834 Amazon eBay $27.95
Oil3.6 L

Common questions

What is the power rating of the Kohler 10REOZD?

The Kohler 10REOZD is rated 10 kW standby (12.5 kVA).

What engine does the Kohler 10REOZD use?

The Kohler 10REOZD is powered by the Yanmar 3TNV82A engine.

What fuel does the Kohler 10REOZD use?

The Kohler 10REOZD runs on Diesel.

What is the oil capacity of the Kohler 10REOZD?

The Yanmar 3TNV82A engine in the Kohler 10REOZD has an oil capacity of 3.6 liters.

Troubleshooting

4

Symptoms & remedies

SymptomCauseRemedy
Generator does not startFaulty starter motor or batteryCheck and replace the starter motor if necessary. Check and charge the battery.
Engine overheatsCoolant level is low, thermostat is faulty, radiator fins are dirtyAdd coolant to recommended level. Replace thermostat if it is faulty. Clean radiator fins.
Generator produces insufficient powerFuel filter is clogged, governor settings are incorrectClean or replace the fuel filter. Adjust governor settings as per manufacturer's instructions.
Engine runs roughAir intake system is dirty, fuel solenoid is faultyInspect and clean air intake system. Check and replace fuel solenoid if necessary.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

11model family
Part #DescriptionQtySystem
225006Gasket, thermostat1Gasket buy
225022Belt, fan1Belt Amazon eBay $65.00
249865Gasket, thermostat1Gasket buy
252834Filter, oil1Oil filter Amazon eBay $27.95
GM28823Sensor, temperature1Sensor buy
GM32359Filter, fuel1Fuel filter Amazon eBay $26.87
GM34387Thermostat1Thermostat buy
GM42265Element, air cleaner1Air filter Amazon eBay
GM42266Element, air cleaner1Air filter Amazon eBay $22.50
GM47465Filter, oil1Oil filter Amazon eBay $23.52
223316Fuse, 10 A, 250 V2Service part / kit buy

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
Prime25%1.20.3
Prime50%1.90.5
Prime75%2.50.7
Prime100%3.50.9
Standby25%1.30.4
Standby50%2.00.5
Standby75%2.70.7
Standby100%4.01.1

Available documents

BrochureSpec sheetInstallation manualReferenceOwner's manualParts manualService manual