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.
Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|
| Air filter | | | — | | |
| Fuel filter | | | — | | |
| Oil filter | | | — | | |
| Battery | | | — | | |
| Belt | | | — | | |
| Coolant | | 140.0 | — | | |
| Fuel | ASTM-D975/No.1 or No.2-D | | — | | |
| Oil | | 235.0 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.