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Kohler 750REOZM Generator Set

The Kohler 750REOZM is a 760 kW (950 kVA) Diesel standby generator set powered by a Mitsubishi S12A2-Y2PTAW-2 engine. It is available at 120/208 V, 127/220 V, 139/240 V, 240/416 V and 277/480 V, 3-phase, 60 Hz and rated 2515 A. It holds about 100 L (26.4 gal) of oil and 100 L (26.4 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses 2 group-Two batteries rated 1150 CCA at 24 V. The same S12A2-Y2PTAW-2 engine also powers generator sets from AKSA, Generac, Rudox Power Generation and Simson-Maxwell.

760 kW
Standby
33.93 L
Displacement
100.0 L
Oil capacity
3
Document types

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Service parts for the 750REOZM

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

Fuel system

1 required
GM13951Fuel filter (secondary)see priceAmazon

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 power760 kW
Standby kVA950
Prime power690 kW
EmissionsTier 2 EPA-Certified
ControllerAPM402
Oil capacity100.0 L
Alternator5M4034
Voltage options120/208 V, 127/220 V, 139/240 V, 240/416 V, 277/480 V
Phase3
Rated current2515 A
Power factor0.8
Circuit breaker2515 A
Battery groupTwo
Battery cranking1150 CCA
Battery voltage24 V
Battery quantity2
Coolant capacity100 L
Max ambient50 °C

Engine

Mitsubishi S12A2-Y2PTAW-2
Oil capacity26.4 L
Coolant capacity26.4 L
Displacement33.93 L
AspirationTurbo-charged, InterCooler
Rated speed1800 rpm

Maintenance & consumables

for the Mitsubishi S12A2-Y2PTAW-2
ItemSpecCapacityPart #Interval
Air filterDry, Replaceable Cartridge2000 hr
Fuel filterCartridge×32000 hr
Fuel filterSecondaryGM13951 Amazon eBay
Oil filterCartridge×3GM32057 Amazon eBay $9.99
BatteryDual, 24×22000 hr
BeltLevel 1 Fan and Belt Guards2000 hr
Coolant50/50 Ethylene Glycol Antifreeze303.0 gal
Coolant filterClean Element2000 hr
OilCentrifugal120.0 qt
Spark plugBosch P Type x 22000 hr

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

What is the power rating of the Kohler 750REOZM?

The Kohler 750REOZM is rated 760 kW standby (950.0 kVA).

What engine does the Kohler 750REOZM use?

The Kohler 750REOZM is powered by the Mitsubishi S12A2-Y2PTAW-2 engine.

What fuel does the Kohler 750REOZM use?

The Kohler 750REOZM runs on Diesel.

What is the oil capacity of the Kohler 750REOZM?

The Mitsubishi S12A2-Y2PTAW-2 engine in the Kohler 750REOZM has an oil capacity of 26.4 liters.

Which alternator is fitted to the Kohler 750REOZM?

The Kohler 750REOZM uses a 5M4034 alternator.

What oil filter fits the Kohler 750REOZM?

The Kohler 750REOZM uses oil filter part number GM32057.

Which fuel filter part number does the Kohler 750REOZM take?

The Kohler 750REOZM uses fuel filter part number GM13951.

Parts

1
Part #DescriptionQtySystem
057-263DSE7410 MKII & DSE7420 MKII Operator Manual1Service 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%61.816.3
Prime50%99.826.4
Prime75%148.239.2
Prime100%207.154.7
Standby25%65.017.2
Standby50%108.228.6
Standby75%164.043.3
Standby100%232.361.4

Available documents

Spec sheet (Kohler)Spec sheet — g5381 (Kohler)Reference (Kohler)Reference — G6-39 0918AZ (Kohler)Service manual — tp6057 (Kohler)Service manual — tp6289 (Kohler)
Full service, cheapest listings

Priced items from this model's own parts manual.

Oil filter GM32057$9.99
1 priced item$9.99