HomeEnginesCummins/Onan DJB

Cummins/Onan DJB Engine Engine

The Cummins/Onan DJB is a 1.04 L 2-cylinder air-cooled engine rated at 2400 rpm. It powers generator sets from Cummins/Onan, including the DJ. It holds 3 L (0.8 gal) of oil.

Also known as: ONAN DJB

1.04 L
Displacement
2
Cylinders
2400 rpm
Rated speed
3.0 L
Oil capacity

Engine specifications

Oil capacity3.0 L
Displacement1.04 L
Cylinders2
AspirationAir-cooled
Rated speed2400 rpm

Generator sets powered by this engine

1

Troubleshooting

1

Fault codes

CodeMeaningRemedy
98-4001Engine is not getting fuel.Prime the fuel system. Check fuel supply and fuel solenoid. If necessary, check for fuel tank empty, shutoff valves binding, linkage loose or broken wires, fuel lines kinked, loose connections, clogged fuel filters, and transfer pump.

Fault codes and symptom→remedy steps extracted from this engine’s service/owner documentation; verify against the official manual before servicing.

Common questions

What is the oil capacity of the Cummins/Onan DJB?

The Cummins/Onan DJB engine has an oil capacity of 3.0 liters.

What is the displacement of the Cummins/Onan DJB?

The Cummins/Onan DJB has a displacement of 1.04 liters with 2 cylinders.

Which generators use the Cummins/Onan DJB engine?

The Cummins/Onan DJB powers 1 generator set(s), including Cummins/Onan DJ.