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Weichai WH28 series marine diesel engine (2100-3600kW)

Parameters Table

Type Four-stroke, water cooled, in-line, turbocharged and intercooled Number of cylinders 6/8
Cylinder Bore/stroke 280×410(mm) Displacement 151.5L/202L
Oil consumption rate ≤0.5g/kW·h Noise ≤114dB(A)
Minimum fuel consumption rate 181g/kW·h Idle speed 320r/min
Rotation direction of crankshaft
(facing the flywheel end)
Clockwise/counterclockwise Length × Width × Height/net weight 6 cylinders 5068×1967×3510(mm) 24000kg
8 cylinders 5949×1967×3510(mm) 29000kg

Model Portfolio Table

Series Model Rated power 
Fuel feeding mode Emission level Power classification
WH28 6WH28C2856-6.5 2100/2856 650 Mechanical pump IMOⅡ P1
6WH28C3672-8 2700/3672 800 Mechanical pump IMOⅡ P1
6WH28C3264-8 2400/3264 800 Mechanical pump IMOⅡ P1
6WH28C3264-7.5 2400/3264 750 Mechanical pump IMOⅡ P1
6WH28C3046-7.5 2240/3046 750 Mechanical pump IMOⅡ P1
6WH28C3046-7.2 2240/3046 720 Mechanical pump IMOⅡ P1
8WH28C4000-7.2 2942/4000 720 Mechanical pump IMOⅡ P1
8WH28C4080-7.5 3000/4080 750 Mechanical pump IMOⅡ P1
8WH28C4352-7.5 3200/4352 750 Mechanical pump IMOⅡ P1
8WH28C4352-8 3200/4352 800 Mechanical pump IMOⅡ P1

Remark: Product parameters and model portfolio are for reference only. Please contact relevant personnel for official information on delivery time and fishing boat model portfolio. 

Product description

  Safe and reliable

  • The safety factor of shafting parts is higher than the ship code standard, so as to ensure the safety and reliability of parts
  • Side-pulling bolts are arranged on engine block to ensure the optimal stress distribution of the engine block, so as to reduce the deformation of parts and improve the service life

  Strong power

  • High power, about 15% higher than similar products
  • High explosive pressure, about 20% higher than similar products
  • The maximum torque output can be maintained at 70%-100% rated speed, and the range of high torque speed is wide

  Economical and fuel-efficient

  • Through simulation optimization and experimental verification, the shapes of high injection pressure fuel system, intake port and combustion chamber have reached the world advanced level. The intake air is sufficient, and fuel consumption is about 7% lower than that of similar products

  Comfortable and environmentally friendly

  • The pulse supercharging system is featured by good load response, fast acceleration and low smoke intensity
  • IMO II emission requirements are met

  Strong practicability

  • Mature structure, modular design and strong maintainability
  • Three-section connecting rod, convenient cylinder lifting, and convenient maintenance
  • The maintenance workload is small, and the maintenance time is less
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R & D

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


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