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Kohler 5M4280 Generator Set

The Kohler 5M4280 is a 950 kW (1188 kVA) Diesel standby generator set powered by a Mitsubishi S12H-Y2PTAW-1 engine. It is available at 240/416 V, 277/480 V and 347/600 V, 3-phase, 60 Hz and rated 1143 A. It holds about 180 L (47.6 gal) of oil and 288 L (76.1 gal) of coolant, with a maximum ambient rating of 40 °C. Starting uses 2 group-Two batteries rated 1150 CCA at 24 V. The set measures 5051×1931×2571 mm (198.9×76.0×101.2 in), weighs about 9798 kg (21601 lb) and produces 910 dBA at 1 m. An integrated tank holds 380 L (100.4 gal), roughly 600 hours of runtime. The same S12H-Y2PTAW-1 engine also powers generator sets from Generac, Rudox Power Generation and Simson-Maxwell.

950 kW
Standby
2265.0 L
Displacement
180.0 L
Oil capacity
1
Document types

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Service parts for the 5M4280

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

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 power950 kW
Standby kVA1188
Prime power895 kW
EmissionsTier 2 EPA-Certified
ControllerAPM402
Oil capacity180.0 L
Alternator5M4280
Voltage options240/416 V, 277/480 V, 347/600 V
Phase3
Rated current1143 A
Power factor0.8
Circuit breaker1143 A
Battery groupTwo
Battery cranking1150 CCA
Battery voltage24 V
Battery quantity2
Coolant capacity288.0 L
Engine jacket water100.0 L
Max ambient40 °C
Dimensions (L×W×H)5051×1931×2571 mm
Dry weight9798 kg
Fuel tank380.0 L
Tank runtime600 hr

Engine

Mitsubishi S12H-Y2PTAW-1
Oil capacity200.0 L
Coolant capacity401.0 L
Displacement2265.0 L
AspirationTurbocharged, Intercooled
Rated speed1800 rpm

Same engine, other brands

3 brands

The Mitsubishi S12H-Y2PTAW-1 in this set also powers 7 generator sets sold under 3 other brands. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.

BrandModels
GeneracMCG1000MT2, MD1000, MD900, SD1000, SD900
Rudox Power GenerationERM1000
Simson-MaxwellSMW1000 T6-T2

Maintenance & consumables

for the Mitsubishi S12H-Y2PTAW-1
ItemSpecCapacityPart #Interval
Air filterDry—
Fuel filterCartridge×4—200 hr
Oil filterCartridge×5GM13942 Amazon eBay $37.99 NAPA $27.83
Battery8D×2—200 hr
BeltRubber-booted engine electrical connections—200 hr
CoolantCoolant76.3 gal—200 hr
Coolant filterUV/Ozone resistant hoses—12 hr
Oil200.0 L—200 hr
Spark plugSpark Plug—200 hr

Common questions

What is the power rating of the Kohler 5M4280?

The Kohler 5M4280 is rated 950 kW standby (1188.0 kVA).

What engine does the Kohler 5M4280 use?

The Kohler 5M4280 is powered by the Mitsubishi S12H-Y2PTAW-1 engine.

What kind of fuel does the Kohler 5M4280 run on?

The Kohler 5M4280 runs on Diesel.

How much oil does the Kohler 5M4280 take?

The Mitsubishi S12H-Y2PTAW-1 engine in the Kohler 5M4280 has an oil capacity of 200.0 liters.

How much coolant does the Kohler 5M4280 hold?

The Kohler 5M4280 cooling system holds 288 liters (76.1 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What is the prime power rating of the Kohler 5M4280?

The Kohler 5M4280 is rated 895 kW prime (1119 kVA), against 950 kW standby.

What is the dry weight of the Kohler 5M4280?

The Kohler 5M4280 has a dry weight of 9798 kg (21600 lb).

How big is the fuel tank on the Kohler 5M4280?

The Kohler 5M4280 has a 380 liter (100 US gallon) fuel tank, giving about 600 hours of runtime.

What voltage does the Kohler 5M4280 produce?

The Kohler 5M4280 is offered in 240/416 V, 277/480 V, 347/600 V, 3-phase.

What size battery does the Kohler 5M4280 need?

The Kohler 5M4280 uses 2 batteryies, 24 V each, 1150 CCA, group Two, per the manufacturer specification sheet.

What alternator does the Kohler 5M4280 use?

The Kohler 5M4280 uses a 5M4280 alternator.

Which oil filter part number does the Kohler 5M4280 take?

The Kohler 5M4280 uses oil filter part number GM13942.

Parts

15
Part #DescriptionQtySystem
0161970SBYBattery1Battery Amazon eBay
01865Fuel/Water Filtering SystemFuel filter Amazon eBay
18650Oil filterOil filter Amazon
01859Serial Number LocationsService part / kit Amazon eBay
01860GFCI Receptacle and Interior Light TimerService part / kit Amazon eBay
01861Component Locations - Left SideService part / kit Amazon eBay
01862Component Locations - Right SideService part / kit Amazon eBay
01863Control PanelService part / kit Amazon eBay
01864Digital ControllerService part / kit Amazon eBay
01866Parallel Setup and OperationService part / kit Amazon eBay
01867Generator Output ConnectionsService part / kit Amazon eBay
01868Voltage RegulatorService part / kit Amazon eBay
01870A299X- 68-03 fos! 104 F1035-12045 25-01 | 29 5 | F1805-10020 68-01 fo5 19Service part / kit Amazon eBay
01871Maintenance schedule and basic maintenance tasks for MCG1000MT2Service part / kit Amazon eBay
01873Maintenance schedule and extended maintenance tasks for MCG1000MT2Service 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%67.017.6
Prime50%129.034.1
Prime75%188.049.6
Prime100%242.064.0
Standby25%73.019.3
Standby50%141.037.25
Standby75%204.054.0
Standby100%263.069.4

Available documents

Spec sheet — Kohler-900REOZMD (Kohler)

This page was generated from the 1 manufacturer document above by automated extraction; every figure shown is copied from one of them. How the data is compiled.

Full service, cheapest listings

Priced items from this model's own parts manual.

Oil filter GM13942$27.83
1 priced item$27.83