Language Switch

Products & ServiceMarine engines

Weichai WP4 series marine diesel engine (60-95kW)

Type Four-stroke, water cooled, in-line, turbocharged/turbocharged and aftercooled Number of cylinders 4
Bore & stroke 105×130 (mm) Displacement 4.5 L
Oil consumption rate ≤0.2 g/kW·h Noise ≤100 dB(A)
Minimum fuel consumption rate 195 g/kW·h Idle speed 650±30 r/min
(facing the flywheel)
Counter-clockwise Net weight 600 kg
Dimensions (L×W×H) 1065×819×1056 (mm)

Model Portfolio Table

Series Model Aspiration Rated power kW/Ps Speed
Fuel system Emission Power rating
WP4 WP4C82-15 T 60/82 1500 Mechanical pump / P1
WP4C95-18 T 70/95 1800 Mechanical pump / P1
WP4C102-21 T 75/102 2100 Mechanical pump / P1
WP4C102-15 TA 75/102 1500 Mechanical pump / P1
WP4C120-18 TA 88/120 1800 Mechanical pump / P1
WP4C130-21 TA 95/130 2100 Mechanical pump / 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 overhaul period of high-strength engine block, crankshaft, connecting rod and cylinder head is 12000h
  • The high-quality suppliers of Weichai system are used. It is developed according to the high requirements of large displacement engines for reliability
  • Rigorous and perfect test methods ensure the reliability of key parts and components
  • Replace the filter without stopping

Strong power

  • The torque reserve is as high as 20%-35%, the range of large torque section is wide, and the ships equipped with the engine will have good acceleration

Economical and fuel-efficient

  • Reasonable allocation of oil pump, turbocharger, air intake and exhaust system; low oil consumption under common working conditions; good economical nature
  • With shallow ω combustion chamber, the best cylinder clearance and swirl ratio, the fuel consumption rate is as low as 195g/kW•h
  • Customized design for lower fuel consumption

Comfortable and environmentally friendly

  • The NVH optimization for the whole engine effectively reduces vibration and noise
  • There is no IMO emission requirement

Strong practicability

  • LCD Internet instrument can be selected to monitor engine operating parameters in real time, so as to realize automatic alarm and stop
  • It is suitable for marine engines such as passenger ships, cargo ships, public service ships, fishing boats and tourist ships
Back to top

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