Jiangsu, China
Business Type:
Manufacturer/Factory, Trading Company
Registered Capital:
3000000 USD
Plant Area:
>2000 square meters
Management System Certification:
ISO 9001
Average Lead Time:
Peak season lead time: one month
Off season lead time: within 15 workdays
OEM/ODM Service

Marine Engine, Diesel Engine, Weichai Engine manufacturer / supplier in China, offering Weichai Wp4.1 Marine Propulsion Diesel Engine Series (40-60kW), 2900 Rpm Centrifugal Fire Fighting Water Pump with Diesel Engine or Motor (Normal or NFPA20 Standard), Movable Centrifugal Water Pump Unit for Irrgation and Drainage and so on.

Gold Member Since 2007
Audited Supplier
Supplier Homepage Products Weichai Diesel Engine Marine Engine Weichai Wp4.1 Marine Propulsion Diesel Engine Series (40-60kW)

Weichai Wp4.1 Marine Propulsion Diesel Engine Series (40-60kW)

Min. Order / Reference FOB Price
1 Piece US $800-2,000/ Piece
Port: Tianjin, China
Production Capacity: 1000piece/Year
Payment Terms: L/C, T/T, Western Union
Cylinders: 4
Fuel Type: Diesel
Engine Capacity: 4.1-5L
Engine: 4 Stroke
Engine Position: Inboard
Condition: New

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Basic Info.

Model NO.
Transport Package
Wooden Case

Product Profile

Weichai WP4.1 marine diesel engine series is the newly developed high-speed engine based on marine engine user behavior and working conditions, relying on Weichai's 70 years of research and development experiences and introduction of advanced technology from home and abroad. The engine has a power of 40-60kW, compact structure, reliable operating, strong power, good economy, simple operation and convenient maintenance. The engine is developed according to the application status of similar products in the market. It is an ideal choice of power for small-sized offshore and inland river transport vessels, fishing boats and official business boat.

Product parameters

Series 4-Stroke,water cooling,In-Line,Dry cylinder sleeve

Number of cylinders

Cylinder Diameter/Stroke 105×118mm


specific lub-oil consumption 0.6g/kW·h

Crankshaft rotation direction
(towards free end)

Start Mode Electric start


Firing Order 1-3-4-2Smoke intensity≤1.5Rb
Noise ≤112dB(A)Emission standardIMO TIER II

Product Spectrum


Air intake

Rated Power(kW/Ps)Speed(r/min)
WP4.1C54-15Turbocharge non-intercooled40/541500
WP4.1C68-15Turbocharge non-intercooled50/681500
WP4.1C82-18Turbocharge non-intercooled60/821800

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 and connecting rod; integral cylinder head;
  • Strong power: Sufficient torque reserve, excellent ship acceleration performance, and suitable for various working conditions;
  • Cost-efficient and fuel-saving: Large-swirl-ratio throat ω-shaped combustion chamber improves the premixed fuel for good economic performance and clean smoke;
  • Practical: Closed dual-cycle cooling system and large-flow sea water pump to ensure cooling capacity; real-time monitoring of water temperature, oil pressure and other parameters, with start, over-limit alarm and shutdown.

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