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Weichai WH20 series marine diesel engine (900-1765kW)

Parameters Table

Type Four-stroke, water cooled, in-line, turbocharged and intercooled Number of cylinders 6/8
Bore & stroke 200×300 (mm) Displacement 56.55 L /75.4 L
Oil consumption rate ≤0.5 g/kW.h Noise ≤110 dB(A)
Minimum fuel consumption rate 185 g/kW.h Idle speed 400r/min
(facing the flywheel)
Clockwise Dimensions (L×W×H) / net weight
L6:3532×1365×2642 (mm) / 9800kg 
L8:4132×1365×2642 (mm) / 12500kg

Model Portfolio Table

Series Model Rated power kW/Ps Rated speed r/min
Fuel and configuration 
(Diesel oil)
Emission Power rating
WH20 6WH20LC1230-1 905/1230 1000 Monomer pump IMO Ⅱ P1
6WH20LC1360-1 1000/1360 1000 Monomer pump IMO Ⅱ P1
6WH20LC1520-1 1118/1520 1000 Monomer pump IMO Ⅱ P1
6WH20LC1632-1 1200/1632 1000 Monomer pump IMO Ⅱ P1
6WH20LC1795-1 1320/1795 1000 Monomer pump IMO Ⅱ P1
6WH20LC1500-9* 1103/1500 900 Monomer pump IMO Ⅱ P1
6WH20LC1225-7.5* 900/1226 750 Monomer pump IMO Ⅱ P1
8WH20LC2400-1 1765/2400 1000 Monomer pump IMO Ⅱ P1
8WH20LC2176-1 1600/2176 1000 Monomer pump IMO Ⅱ P1
8WH20LC2000-1 1470/2000 1000 Monomer pump IMO Ⅱ P1
8WH20LC2040-9* 1500/2040 900 Monomer pump IMO Ⅱ P1
8WH20LC1850-9* 1360/1850 900 Monomer pump IMO Ⅱ P1
8WH20LC1650-7.5* 1213/1650 750 Monomer pump IMO Ⅱ P1
8WH20LC1500-7.5* 1103/1500 750 Monomer pump IMO Ⅱ 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 main moving parts is high, which guarantees the high reliability of the diesel engine
  • Replace the filter without stopping

Strong power

  • The diesel engine has a large displacement and more sufficient air intake. As the fuel system with high injection pressure and the turbocharger with high pressure ratio, the diesel engine has strong power

Economical and fuel-efficient

  • The four-valve cylinder head technology is suitable for the camshaft design with medium and low speeds, so the diesel engine is featured by good response and wide speed range, and economic operation
  • Heavy fuel oil is allowed

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

  • The peripheral parts adopt modular design, which makes the whole engine more compact in structure, more convenient in disassembly and assembly, and more beautiful in appearance
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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