The Cummins/Onan Kubota D1503-M is a 1.5 L 4-cylinder engine rated at 1800 rpm, producing up to 18.5 kW. It powers generator sets from Cummins/Onan, including the ONAN QD 10000. It holds 5.6 L (1.5 gal) of oil and 6.2 L (1.6 gal) of coolant.
| Oil capacity | 5.6 L |
|---|---|
| Coolant capacity | 6.2 L |
| Displacement | 1.499 L |
| Cylinders | 4 |
| Rated speed | 1800 rpm |
| Gross power | 18 kW |