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Products & ServiceMarine engines

Weichai CW250 series marine diesel engine (1103-1960kW)

Parameters Table

Type Four-stroke, water cooled, in-line, turbocharged and intercooled Number of cylinders 6/8
Cylinder Bore/stroke 250×300(mm) Displacement 88.36L/117.81L
Oil consumption rate ≤0.6g/kW·h Noise ≤110dB(A)
Minimum fuel consumption rate 195g/kW·h Idle speed 40% rated speed
Rotation direction of crankshaft 
(facing the flywheel end)
Clockwise Length × Width × Height/net weight 6-cylinder front-placed::3817×1371×2458(mm)/12000kg
6-cylinder rear-placed::4494×1561×2495(mm)/12000kg
8-cylinder front-placed::4723×1432×2492(mm)/15300kg
8-cylinder rear-placed::5534×1561×2492(mm)/15300kg

Model Portfolio Table

Series Model Rated power 
Rated speed 
Fuel and configuration Emission level Power classification
0#diesel oil 1500s heavy oil
CW250 CW6250ZLC-1 1103/1500 750 Single pump Single pump IMOⅡ P1
CW6250ZLC-12 1213/1650 830 Single pump Single pump IMOⅡ P1
CW6250ZLC-2 1323/1800 900 Single pump Single pump IMOⅡ P1
CW6250ZLC 1470/2000 1000 Single pump Single pump IMOⅡ P1
CW8250ZLC-1 1470/2000 750 Single pump Single pump IMOⅡ P1
CW8250ZLC-2 1760/2395 900 Single pump Single pump IMOⅡ P1
CW8250ZLC 1960/2667 1000 Single pump Single 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

  • High strength engine block, crankshaft and connecting rod structure, and high safety factor ensure the good reliability of the products

  Strong power

  • The high-pressure oil pump, turbocharger, injector, and air valve are optimally matched, with wide power coverage and large torque reserve
  • Low-speed and high-torque design ensures the quick response and fast speed increase of the engines

  Economical and fuel-efficient

  • The engines are featured by four-valve technology, pulse conversion turbocharger, large intake air volume, and sufficient combustion, and the lowest fuel consumption rate can reach 195g/kW•h

  Comfortable and environmentally friendly

  • Large stiffness damping leaf spring shock absorber is adopted, so that vibration is small and noise is low
  • IMO II emission requirements are met

  Strong practicability

  • The turbocharger can realize free end or flywheel end layout to meet the requirements of different ship types
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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