The Cummins/Onan 6BTA5.9-F1 is a 5.88 L 6-cylinder turbocharged-aftercooled engine rated at 208 rpm, producing up to 136 kW. It powers generator sets from Cummins/Onan, including the FIREPUMP 6BTA5.9 F1. It holds 14.2 L (3.8 gal) of oil and 20.7 L (5.5 gal) of coolant.
| Oil capacity | 14.2 L |
|---|---|
| Coolant capacity | 20.7 L |
| Displacement | 5.88 L |
| Cylinders | 6 |
| Aspiration | Turbocharged-Aftercooled |
| Rated speed | 208 rpm |
| Gross power | 136 kW |