The Kohler KDI 2504 TCR 2.5 L is a 2.5 L 4-cylinder turbocharged engine rated at 1800 rpm, producing up to 47 kW. It powers generator sets from Kohler, including the 40 REOZK4. It holds 11.2 L (3.0 gal) of oil and 17.2 L (4.5 gal) of coolant.
| Oil capacity | 11.2 L |
|---|---|
| Coolant capacity | 17.2 L |
| Displacement | 2.5 L |
| Cylinders | 4 |
| Aspiration | Turbocharged |
| Rated speed | 1800 rpm |
| Gross power | 47 kW |