The Cummins/Onan QSK23 Series is a 23 L 6-cylinder turbocharged and after-cooled engine rated at 1470 rpm. It powers generator sets from Cummins/Onan, including the 545DQCA*, 600DQCA*, 640DQCB* and 720DQCC*. It holds 57 L (15.1 gal) of oil.
| Oil capacity | 57.0 L |
|---|---|
| Displacement | 23.0 L |
| Cylinders | 6 |
| Aspiration | Turbocharged and After-cooled |
| Rated speed | 1470 rpm |