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WP12H series bus engine


Product parameters

Mode Displacement
（L）		 Number of valves per cylinder Rated power/speed
(kW/rpm)		 Maximum torque/speed
(N·m/rpm)		 Min. fuel consumption on external characteristic curve
(g/kW·h)		 Technical route Application
WP12.400E50 11.596 4 294/1900 1920/1000-1400 ≤185 CR+SCR 18m BRT
Over 12m
luxury coach
WP12.430E50 11.596 4 316/1900 2060/1000-1400 ≤185 CR+SCR 18m BRT
Over 12m
luxury coach
WP12.460E50 11.596 4 338/1900 2110/1000-1400 ≤185 CR+SCR 18m BRT
Over 12m
luxury coach

Product advantages

Highly reliable

  • B10 life is up to 1,800,000 km.
  • A high position of the engine block is cooled , and the upper part of the cylinder liner has an independent cooling cycle.
  • The cylinder head adopts Top-Down cooling to reduce the temperature of top land.
  • The moving parts are designed with high reliability structure.

    • Powerful

  • WP12H diesel engine has a maximum torque of 2300 N·m.

    • Excellent performance

  • Integral cylinder head, 4 valves per cylinder.
  • Matching design of new type combustion chamber and intake and exhaust way.

    • High safty

  • Cylinder head cover are sealed with vibration isolation rubber.
  • Insulation protection for high temperature parts.

    • Excellent NVH performance

  • Cylinder head cover are sealed with vibration isolation rubber.
  • With rear gear chamber.
  • Plastic cylinder head cover.

    • Lightweight Design

  • Application of lightweight materials such as plastics and aluminum alloys.
  • Integrated Modular Design.
  • Plastic cylinder head cover.

    • Easy and low-cost maintenance

  • Integrated oil cooling filter module, only replace the filter element.
  • Integrated fuel filter module, only replace the filter elementss.
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    R & D

    20000 +
    Global R & D personnel
    5+10 
    R & D institutions in five countries, ten regions

    Engines

    • 5,000,000 units
    • 22-10000Ps
    • 200 million kilowatts
    • Application for all markets

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