what are the ways for modern diesel engines to save energy and reduce emissions?
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   Engine Application 
              Truck 
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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) | Valve Number | Displacement(L) | 
|---|---|---|---|---|
| WP9H336E40 | 247/1900 | 1600/1000-1400 | 4 | 8.8 | 
| WP9H310E50 | 228/1900 | 1500/1000-1400 | 4 | 8.8 | 
| WP9H336E50 | 247/1900 | 1600/1000-1400 | 4 | 8.8 | 
| WP9H350E50 | 257/1900 | 1700/1100-1400 | 4 | 8.8 | 
| WP9H310E62 | 228/1900 | 1500/1000-1400 | 4 | 8.8 | 
| WP9H336E62 | 247/1900 | 1600/1000-1400 | 4 | 8.8 | 
| WP9H350E62 | 257/1900 | 1700/1100-1400 | 4 | 8.8 |