HomeCummins/OnanCummins/Onan HGJAD

Cummins/Onan HGJAD Generator Set

The Cummins/Onan HGJAD is a generator set. It is available at 12 V.

3
Document types

Specifications

Voltage options12 V
Battery voltage12 V

Filters & service parts

model family
ItemSpecCapacityPart #Interval
Air filterReplacing the Air Filter Element1000 hr find
BeltCheck the generator set mounting bolts to make sure they are secure (Section 4.1.5)8 hr find
Coolant3.5 L1000 hr
Fuel filterGasoline Fuel System—HGJAA and HGJAD, Gasoline Fuel System—HGJAB and HGJAE, LPG Fuel System—HGJAB and HGJAE500 hr find
OilChange Engine Oil and Oil Filter4.5500 hr
Oil filterChange Engine Oil and Oil Filter500 hr find

Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.

Parts

5model family
Part #DescriptionQtySystem
0420-0603Bypass Control Board Tester1Service part / kit buy
0541-1143Bypass Control Board Tester Adapter Kit1Service part / kit buy
0541-1287Harness Kit for InPower Diagnostic Service Tool1Service part / kit buy
0541-1374InPower Harness Kit (Spec J and later)1Service part / kit buy
0541-1389Harness Kit for InPower Diagnostic Service Tool1Service 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
Prime
Standby

Available documents

Operator's manualParts manualService manual