The Cummins/Onan Kubota D1803-CR-TIE4BG is a 1.83 L 3-cylinder 4-cycle, liquid-cooled diesel engine engine rated at 1800 rpm, producing up to 27 kW. It powers generator sets from Cummins/Onan, including the SD 20. It holds 7 L (1.8 gal) of oil and 11.4 L (3.0 gal) of coolant.
| Oil capacity | 7.0 L |
|---|---|
| Coolant capacity | 11.4 L |
| Displacement | 1.826 L |
| Cylinders | 3 |
| Aspiration | 4-cycle, liquid-cooled diesel engine |
| Rated speed | 1800 rpm |
| Gross power | 27 kW |