The Cummins/Onan ISX 550 is a 15 L turbocharged/charge air cooled engine rated at 2000 rpm. It powers generator sets from Cummins/Onan. It holds 49.2 L (13.0 gal) of oil.
| Oil capacity | 49.2 L |
|---|---|
| Displacement | 15.0 L |
| Aspiration | turbocharged/charge air cooled |
| Rated speed | 2000 rpm |