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Truck Diesel Engines WP4/WP6
WP4 is a Euro V-compliant series developed by Weichai based on Deutz 226B using Bosch's high-pressure common rail system.
Economy : A switch system for idle speed adjustment ensures low fuel consumption while maintaining dynamic performance.
Dynamic performance : The model features high torque at low speed, and max, torque of 600N.m for WP4. All these guarantee their excellent starting and acceleration performance.
Structure : The front end of engine can cater for single or dual, dynamo in th arrangement structure.
| Series | Type | Disp （L） |
Bore×Stroke (mm) |
Per cylinder valve | Rated power/speed (PS/rpm) |
| WP4 | In-line,Turbo-charged and intercooled，CR and SCR |
4.5 | 105×130 | 2 | 135-165/2300 |
| WP6 | 6.75 | 180-245/2300 | |||
| Series | Model | Emission | Displacement /cylinders |
Per cylinder valve | Rated power/speed (kW/rpm) |
Max.torque/speed (N.m/rpm) |
Technical route |
| WP4 | WP4.135 | EuroIV/V | 4.5L/4 | 100/2300 | 500/1300-1800 | CR+SCR | |
| WP4.150 | 110/2300 | 550/1300-1800 | |||||
| WP4.165 | 121/2300 | 600/1300-1800 | |||||
| WP6 | WP6.180 | 6.75L/6 | 132/2300 | 680/1200-1600 | |||
| WP6.200 | 147/2300 | 760/1200-1600 | |||||
| ※ WP6.220 | 162/2300 | 850/1200-1600 | |||||
| ※ WP6.245 | 180/2300 | 900/1200-1600 |
Cargo truck, dumper, cement mixer
