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Weichai CW250 Marine Diesel Engine Series (992-1960kW)




Product Profile

Weichai's new generation WHM250 marine diesel engine series is a new type of diesel engine independently developed, designed and manufactured by Weichai on the basis of Sulzer A25. The engine uses four-stroke, irreversible, in-line, direct-injection, water-cooling, turbocharging, and intercooling technologies. It has compact structure, reliable use, excellent economy, fewer parts, strong versatility, and convenient operation and maintenance.

The power range of the series is 992kW - 1960kW, and the speed range is 720r/min - 1000r/min. It is widely used in offshore and inland river transport vessels, ocean fishing vessels and engineering vessels.

Product parameters

Series 4-Stroke、water cooling、In-Line、pressurize Number of cylinders 6/8
Cylinder Diameter/Stroke 250×300mm Displacement 88L/118L
Start Mode 气/电启动 Oil consumption 0.6g/kW·h
Idling 350±50r/min Noise ≤110dB(A)
Firing Order



Crankshaft rotation direction

(towards free end)

Smoke intensity ≤1.0rb specific lub-oil consumption 195g/kW.h

Product Spectrum

Model Air intak Rated Power(kW/Ps) Speed(r/min)
CW6250ZLC Supercharged and cold 1470 1000
CW6250ZLC-2 Supercharged and cold 1323 900
CW6250ZLC-12 Supercharged and cold 1213 830
CW6250ZLC-1 Supercharged and cold 1103 750
CW6250ZLC-10 Supercharged and cold 992 750
CW6250ZLC-3 Supercharged and cold 1058 720
CW8250ZLC Supercharged and cold 1960 1000
CW8250ZLC-2 Supercharged and cold 1760 900
CW8250ZLC-1 Supercharged and cold 1470 750
CW8250ZLC-3 Supercharged and cold 1410 720

Remarks: Product parameters and portfolio are for reference only. For fishing vessel engine portfolio, please contact relevant personnel for official information.

Product Features

  • Safe and reliable: high-strength engine body, crankshaft, connecting rod, large-flow cooling-and-filtration lubrication system and efficient cooling system, less tube and split head design to ensure the reliability and maintenance of engine parts
  • Powerful: Optimized turbocharger, high-pressure fuel pump and fuel injector, with wide power coverage, larger torque reserve and high torque at low speed better for various working conditions.
  • Excellent fuel economy: Four-valve, pulse turbocharging, large air intake and full combustion lead to minimum fuel consumption rate of 195g/kW·h.
  • Low vibration and noise: Enhanced key components and high-stiffness spring damper bring low engine vibration and noise.
  • High applicability: The turbocharger can be arranged at the free end or the flywheel end to meet different ship requirements.
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  • 4,000,000 units
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  • 200 million kilowatts
  • Whole areas of application

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