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Isuzu 4HK1 Generator Set

The Isuzu 4HK1 is a 129 kW standby generator set powered by a Isuzu 4HK1X engine. It is available at 12 V. It holds about 21.6 L (5.7 gal) of oil and 20.8 L (5.5 gal) of coolant. The set measures 1023×929×1069 mm (40.3×36.6×42.1 in) and weighs about 560 kg (1235 lb). The same 4HK1X engine also powers generator sets from Echo, Hipower, MQ Power and Westquip Diesel Sales.

129 kW
Standby
5.2 L
Displacement
21.6 L
Oil capacity
4
Document types

Specifications

Standby power129 kW
EmissionsU.S. EPA Tier 4 / EU Stage IV
Oil capacity21.6 L
Voltage options12 V
Battery voltage12 V
Coolant capacity20.8 L
Dimensions (L×W×H)1023×929×1069 mm
Dry weight560 kg

Engine

Isuzu 4HK1X
Oil capacity23.78 L
Coolant capacity19.7 L
Displacement5.2 L
Aspirationturbocharged
Rated speed1800 rpm

Maintenance & consumables

for the Isuzu 4HK1X
ItemSpecCapacityPart #Interval
Air filterAir Cleaner find
Fuel filterFuel Shutoff Solenoid, Fuel Pump, Fuel Pump Priming500 hr find
Oil filter1134202322500 hr kuduparts $48.00
Coolant15.32 qt
OilOil Capacity w/out filter, qt.21.66 qt500 hr

Compatible filters for the Isuzu 4HK1X — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.

  • Air filter: Donaldson P500248

Common questions

What is the power rating of the Isuzu 4HK1?

The Isuzu 4HK1 is rated 129 kW standby.

What engine does the Isuzu 4HK1 use?

The Isuzu 4HK1 is powered by the Isuzu 4HK1X engine.

What is the oil capacity of the Isuzu 4HK1?

The Isuzu 4HK1X engine in the Isuzu 4HK1 has an oil capacity of 23.78 liters.

Parts

8
Part #DescriptionQtySystem
5-8840-2623-0Nozzle sleeve removerInjector buy
5-8840-2826-0Injector removerInjector buy
93207-01060Water return pipeThermostat buy
5-8840-0019-0Sliding hammerService part / kit buy
5-8840-2621-0Valve spring replacerService part / kit buy
5-8840-2628-0Valve guide replacerService part / kit buy
8-9439-6862-0Pivot ASMService part / kit buy
93207-01050Cylinder head coverService part / kit buy

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
Prime
Standby

Available documents

Engine specSpec sheetParts manualService manual