The 6M21 engine has good economy and adaptability.
The 6M21 product series is a high power density engine independently developed by Weichai, inherits the advantages of high reliability of Weichai products. Power coverage 350-490kW, to meet China's off-road phase 3 emissions, suitable for 300-440KW generator sets.
| Maximum Power | 450 kW |
| Minimum Power | 350 kW |
| Maximum Torque / Speed | / N·m / r/min |
| Emissions | China non-road Stage Ⅲ |
| Series | WP13 |
| Fuel | Diesel |
| EngineType | Inline 6-cylinder, four-stroke engine |
| Cylinder Number | 6 |
| Valve Number | 4 |
| Bore | 127 mm |
| Stroke | 165 mm |
| Displacement | 12.54 L |
| Aspiration | Turbocharged and aftercooled |
| Compression Ratio | 16:1/15:1 |
| Combustion System | lectronically controlled high pressure common rail |
| Length | 1717 mm |
| Width | 902 mm |
| Height | 1178 mm |
| Weight - Net Dry | 998 kg |