what are the ways for modern diesel engines to save energy and reduce emissions?
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   Engine Application 
              Construction 
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   Engine Category 
              Weichai 
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   Tags 
          
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| Model | Rated Power/ Speed | Maximum Torque / Speed(N.m/rpm) | Displacement(L) | Valve Number | 
|---|---|---|---|---|
| WP4G80E231 | 60/2300 | 300/1400-1600 | 4.5 | 2 | 
| WP4G110E221 | 82/2000 | 460/1400-1600 | 4.5 | 2 | 
| WP4G110E220 | 82/2200 | 430/1400-1600 | 4.5 | 2 | 
| WP4G130E22 | 97.5/2200 | 560/1400-1600 | 4.5 | 2 |