HomeKohlerKohler 1250ROZMC

Kohler 1250ROZMC Generator Set

The Kohler 1250ROZMC is a 1280 kW (1600 kVA) Diesel standby generator set powered by a Mitsubishi S12R-Y1PTA-2 engine. It is available at 220/380 V, 240/416 V, 277/480 V, 347/600 V and 2400/4160 V, 3-phase and 60 Hz. It holds about 200 L (52.8 gal) of oil and 322 L (85.1 gal) of coolant, with a maximum ambient rating of 40 °C. Starting uses 4 batteries rated 1150 CCA at 12 V. The set measures 6123×2232×2571 mm (241.1×87.9×101.2 in) and weighs about 12020 kg (26500 lb). The same S12R-Y1PTA-2 engine also powers generator sets from Simson-Maxwell.

1280 kW
Standby
49.0 L
Displacement
200.0 L
Oil capacity
4
Document types

How to read your Kohler serial & model number →

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power1280 kW
Standby kVA1600
Prime power1160 kW
EmissionsTier II
ControllerAPM603, Decision-Maker 550, Decision-Maker 6000
Oil capacity200.0 L
Alternator7M4052
Voltage options220/380 V, 240/416 V, 277/480 V, 347/600 V, 2400/4160 V
Phase3
Power factor0.8
Battery cranking1150 CCA
Battery voltage12 V
Battery quantity4
Coolant capacity322 L
Max ambient40 °C
Dimensions (L×W×H)6123×2232×2571 mm
Dry weight12020 kg

Engine

Mitsubishi S12R-Y1PTA-2
Oil capacity200.0 L
Coolant capacity322.0 L
Displacement49.0 L
AspirationTurbocharged
Rated speed1800 rpm

Maintenance & consumables

for the Mitsubishi S12R-Y1PTA-2
ItemSpecCapacityPart #Interval
Air filter find
Fuel filter find
Oil filter find
Belt find
Coolant
Coolant filter find
Oil150.0 gal

Common questions

What is the power rating of the Kohler 1250ROZMC?

The Kohler 1250ROZMC is rated 1280 kW standby (1600.0 kVA).

What engine does the Kohler 1250ROZMC use?

The Kohler 1250ROZMC is powered by the Mitsubishi S12R-Y1PTA-2 engine.

What fuel does the Kohler 1250ROZMC use?

The Kohler 1250ROZMC runs on Diesel.

What is the oil capacity of the Kohler 1250ROZMC?

The Mitsubishi S12R-Y1PTA-2 engine in the Kohler 1250ROZMC has an oil capacity of 200.0 liters.

What alternator does the Kohler 1250ROZMC use?

The Kohler 1250ROZMC uses a 7M4052 alternator.

Parts

26model family
Part #DescriptionQtySystem
GM13942Oil Filter4Oil filter Amazon eBay $25.00 PartsGeek
GM13943Oil Filter (bypass)1Oil filter Amazon eBay PartsGeek
GM13944Thermostat4Thermostat PartsGeek
GM13945Thermostat Gasket2Gasket PartsGeek
GM13946Tip assembly, nozzle12Injector PartsGeek
GM13947Fuel Filter4Fuel filter Amazon eBay $79.99 PartsGeek
GM13948V-Belt (alternator)1Belt Amazon eBay PartsGeek
GM13950Oil Filter (bypass)1Oil filter Amazon eBay $23.66 PartsGeek
GM13951Fuel Filter2Fuel filter Amazon eBay $59.00 PartsGeek
GM13952Fuel Filter4Fuel filter Amazon eBay PartsGeek
GM13953Thermostat2Thermostat PartsGeek
GM14525V-Belt (set of 4)1Belt Amazon eBay $94.95 PartsGeek
GM14526V-Belt (set of 4)1Belt Amazon eBay $39.80 PartsGeek
GM15752V-Belt1Belt Amazon eBay PartsGeek
GM15753V-Belt (alternator)1Belt Amazon eBay PartsGeek
GM15765Thermostat Gasket1Gasket PartsGeek
GM21122V-Belt1Belt Amazon eBay PartsGeek
GM21663Fuel Filter2Fuel filter Amazon eBay PartsGeek
GM21727Thermostat Gasket2Gasket PartsGeek
GM21733Tip assembly, nozzle16Injector PartsGeek
GM21917V-Belt (alternator)1Belt Amazon eBay PartsGeek
GM31390Thermostat4Thermostat PartsGeek
GM31436Tip assembly, nozzle6Injector PartsGeek
GM32057Oil Filter4Oil filter Amazon eBay PartsGeek
GM35977Tip assembly, nozzle12Injector PartsGeek
GM38852Oil Filter2Oil filter Amazon eBay PartsGeek

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%103.027.1
Prime50%172.045.4
Prime75%241.063.7
Prime100%319.084.4
Standby25%104.027.6
Standby50%184.048.6
Standby75%263.069.4
Standby100%354.093.6

Available documents

Brochure — G6-39 0918AZ (Kohler)Spec sheet — Kohler-1250ROZMC (Kohler)Spec sheet — adv8175 (Kohler)Spec sheet — g5362 (Kohler)Parts manual — tp6057 (Kohler)Wiring diagram — tp6813 (Kohler)

Other sets with this engine