WP10HNG series bus engine

Weichai bus engines, with the displacement ranging from 2.3L to 12L and the power ranging from 88kW to 338kW meet Euro V, Euro VI and other emission standards, and are applicable to various buses with a length greater than 5m such as school buses, passenger buses, private buses, touring buses, public buses, hybrid electric buses, and special buses. These new-generation power products (RA/WP2.3N/WP3N/WP4.1N/WP4.6N) are applicable to rural public buses, minibuses, long-nose school buses, high-end MPVs, European light buses, and characterized by high reliability, strong power, fuel saving and environmental protection.

WP10HNG series bus engine

Product parameters

Mode Displacement
Number of valves per cylinder Rated power/speed
Maximum torque/speed
Min. fuel consumption on external characteristic curve
Technical route Applicable model
WP10HNG336E60 9.5 4 247/1900 1500/1100-1500 195 ER(λ=1)+EGR +TWC 12m coach、12-13.7m city bus
WP10HNG350E60 9.5 4 257/1900 1600/1100-1500 195
ER(λ=1)+EGR +TWC
12m coach、12-13.7m city bus


Product advantages

Power performance

  • Improved output torque at low speed and maximum torque and good responsiveness during acceleration and start-up meet the power requirement of the vehicle.


  • The fuel economic zone shifts to the low speed range; squish effect is strengthened and combustion speed is increased; the intelligent ignition coil increases ignition energy, reduces load cycle variation of low-speed part, and reduces fuel consumption.


  • Low vibration and low noise (2-3 dB(A) lower than that of competing products).

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