Cummins/Onan QSB 4.5 Series Engine
The Cummins/Onan QSB 4.5 Series is a 4.5 L 4-cylinder turbocharged and charge-air cooled engine rated at 1470 rpm. It powers generator sets from Cummins/Onan, including the CFP5E-F10, CFP5E-F20, CFP5E-F30 and CFP5E-F40. It holds 11.6 L (3.1 gal) of oil and 12.3 L (3.2 gal) of coolant.
Engine specifications
| Oil capacity | 11.6 L |
|---|---|
| Coolant capacity | 12.3 L |
| Displacement | 4.5 L |
| Cylinders | 4 |
| Aspiration | Turbocharged and Charge-Air Cooled |
| Rated speed | 1470 rpm |