Variable Speed 6M21
| Cylinders | 6 |
| Total displacement (L) | 12.5 L |
| Cylinders Arrangement | In line |
| Fuel System | Mechanical Pump |
| Governor (Gov.) | Mechanical, ECU |
| Aspiration (Asp.) | T/A-A |











| Model | Rated Power | Peak Torque | Displacement | Aspiration | Coupling | Throttle |
|---|---|---|---|---|---|---|
| FWH | FW | ||||||
| 6M21V4D0 | 350 kW @ 1800 rpm | 2154 Nm @ 1500 rpm | 12.5 L | T/A-A | SAE 1 - 14" | M |
| 6M21V2D0 | 370 kW @ 2200 rpm | 2002 Nm @ 1300 rpm | 12.5 L | T/A-A | SAE 1 - 14" | M |
| 6M21V5D0 | 390 kW @ 2100 rpm | 2303 Nm @ 1500 rpm | 12.5 L | T/A-A | SAE 1 - 14" | ECU |
| 6M21V6D0 | 406 kW @ 2200 rpm | 2203 Nm @ 1400 rpm | 12.5 L | T/A-A | SAE 1 - 14" | ECU |