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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 21.66 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
21.66 L
Oil capacity
4
Document types

Specifications

Standby power129 kW
EmissionsU.S. EPA Tier 4 / EU Stage IV
ControllerKey Switch), Programmable Speed Setting, Throttle Control
Oil capacity21.66 L
Voltage options24 V
Battery voltage12 V
Battery quantity2
Coolant capacity20.8 L
Dimensions (L×W×H)1023×929×1069 mm
Dry weight1698 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
Belt— find
Coolant15.32 qt—
Fuel filter—500 hr find
Oil500-hour oil drain & service interval21.66—500 hr
Oil filter—500 hr find

Parts

29model family
Part #DescriptionQtySystem
5-8840-2622-0Compression gauge adapter (6HK1)Compression gauge adapter buy
5-8840-2623-0Nozzle sleeve removerInjector buy
5-8840-2675-0Compression gaugeCompression gauge buy
5-8840-2826-0Injector removerInjector buy
6HK1Right side of cylinder block, below injection pump.Pump buy
6WG1Left front, top part of cylinder block in front of injection pump.Pump buy
93207-01060Water return pipeThermostat buy
EN-46722Compression gauge adapter (4HK1)Compression gauge adapter buy
J-26999-12Compression gaugeCompression gauge buy
WSHK0005Compression gauge1Compression gauge buy
1A-10ENGINE MECHANICAL (4HK1, 6HK1)1Service part / kit buy
1A-11Main Data and Specifications1Service part / kit buy
1A-12ENGINE MECHANICAL (4HK1, 6HK1)1Service part / kit buy
1A-13Special tool1Service part / kit buy
1A-14ENGINE MECHANICAL (4HK1, 6HK1)1Service part / kit buy
4HK1Right center, lower part of cylinder block.Service part / kit 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
6RB16WG1Service part / kit buy
6SA1Left rear, top part of cylinder block.Service part / kit buy
6SD1Left center, lower part of cylinder block.Service part / kit buy
6UZ1Left center, lower part of cylinder block.Service part / kit buy
8-9439-6862-0Pivot ASMService part / kit buy
93207-01050Cylinder head coverService part / kit buy
C240Left front, top part of cylinder block.Service part / kit buy
E1206RB1Service part / kit buy
WSHK0003Service part / kit buy
WSHK0004Service 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
100% load100%8.05
50% load50%4.03
75% load75%6.05
Prime
Standby

Available documents

Engine specSpec sheetParts manualService manual