WP2.3N series truck engine

At present, Weichai truck engines, with the displacement ranging from 2.3L to 13L and the power ranging from 70kW to 426kW, meet Euro II, Euro Ⅲ, Euro Ⅳ, Euro V, Euro VI,emission standards, and are applicable to heavy-duty tractors, middle-duty trucks, light-duty trucks, and off-road trucks. These engines are characterized by high reliability, strong power, fuel saving and environmental protection.

WP2.3N series truck engine

Product portfolio

Mode Displacement
Number of valves per cylinder Rated power/speed
Maximum torque/speed
Min. fuel consumption on external characteristic curve
Technical route Applicable model
WP2.3NQ120E50 2.289 4 88/3200 320/1500-2400 200 Common rail + SCR
Light-duty trucks、special vehicles、dump trucks
WP2.3NQ130E50 2.289 4 96/3200 380/1600-2400 200 Common rail + SCR Light-duty trucks、special vehicles、dump trucks
WP2.3NQ120E61 2.289 4 88/3200 320/1500-2400 205 Common rail + EGR + DOC + DPF +SCR Light-duty trucks、special vehicles、dump trucks
WP2.3NQ130E61 2.289 4 96/3200 380/1600-2400 205 Common rail + EGR + DOC + DPF +SCR Light-duty trucks、special vehicles、dump trucks


Product advantages

  • Light-duty trucks/special vehicles/engineering dump trucks.
  • Emission standards: Euro V and Euro VI.
  • Powerful: High torque: 380Nm, output torque at low speed: 245N.m.
  • Economy: Minimum fuel consumption: 200g/(kW•h).
  • Comfort: The customized development of NVH ensures low noise and vibration.
  • Universality: The BOSCH system is used in the fuel system, which guarantees the maximum universality of parts.
  • Light weight: Its applies a large number of cast aluminum parts and weighs 220kg, which is the lightest one among those products of same power.
  • Small size: The engine is 810mm long, ensuring the easy assembling in OEM.

More safe and reliable

  • The movement speed of moving parts is reduced, and the movement time is prolonged.
  • The wear of friction pairs per unit time is reduced.
  • The service life of the crankshaft flywheel system and gear system is prolonged.
  • The engine block, piston, bearing shell, etc. are improved comprehensively, and B10 life is 800,000 km.

Better economy

  • The speed ratio of drivetrain is reduced, improving transmission efficiency.
  • The driver‘s shift schedule is improved, reducing fuel consumption.

More comfortable

  • The high frequency torsional vibration zone of the engine is avoided.
  • The noise reduction flywheel housing is used and its noise level is 92d(B) under common operating conditions.

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