The Cummins/Onan KTAK4-2100 is a 18.8 L 6-cylinder turbocharged and aftercooled engine rated at 1800 rpm. It powers generator sets from Cummins/Onan, including the DFED. It holds 45.4 L (12.0 gal) of oil and 90.8 L (24.0 gal) of coolant.
| Oil capacity | 45.4 L |
|---|---|
| Coolant capacity | 90.8 L |
| Displacement | 18.8 L |
| Cylinders | 6 |
| Aspiration | turbocharged and aftercooled |
| Rated speed | 1800 rpm |