HomeEnginesCummins/Onan QSK50- G4

Cummins/Onan QSK50- G4 Engine

The Cummins/Onan QSK50- G4 is a 50.3 L 16-cylinder turbocharged and low temperature after-cooled engine rated at 113 rpm, producing up to 1703 kW. It powers generator sets from Cummins/Onan and MQ Power, including the C1500 D6RG, DQGAA, DQGAB and QSK50-G4. It holds 235 L (62.1 gal) of oil and 113 L (29.9 gal) of coolant.

Also known as: Cummins QSK50- G4

50.3 L
Displacement
16
Cylinders
113 rpm
Rated speed
1703 kW
Gross power

Engine specifications

Oil capacity235.0 L
Coolant capacity113.0 L
Displacement50.3 L
Cylinders16
AspirationTurbocharged and low temperature after-cooled
Rated speed113 rpm
Gross power1703 kW

Maintenance schedule

ItemSpecCapacityPart #Interval
Air filter
Fuel filter
Oil filter
Battery
Belt
Coolant140.0
FuelASTM-D975/No.1 or No.2-D
Oil235.0 L
Spark plug

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Common questions

What is the oil capacity of the Cummins/Onan QSK50- G4?

The Cummins/Onan QSK50- G4 engine has an oil capacity of 235.0 liters.

What is the displacement of the Cummins/Onan QSK50- G4?

The Cummins/Onan QSK50- G4 has a displacement of 50.3 liters with 16 cylinders.

Which generators use the Cummins/Onan QSK50- G4 engine?

The Cummins/Onan QSK50- G4 powers 5 generator set(s), including Cummins/Onan C1500 D6RG, Cummins/Onan DQGAA, Cummins/Onan DQGAB, Cummins/Onan QSK50-G4, MQ Power 1500 kW Containerized Diesel Generator Set.