Core Marine Engine Models

WEICHAI WP2.3N

Weichai WP2.3N marine diesel engine adopts compact layout, stable output and low fuel consumption, ideal for small vessels as propulsion power.

WEICHAI WP3N

WP3N diesel Marine Engine, compliant with EU5, Tier4 and CN4 emission requirements.

WEICHAI WP3.2

WEICHAI WP3.2 marine engine has good power reserve and excellent fuel economy. Simple structure brings convenient daily maintenance for marine applications.

WEICHAI WP4.1

WEICHAI WP4.1 marine diesel engine owns stable power performance and strong environmental adaptability, suitable for medium-sized fishing and working boats.

WEICHAI WP4.1N

WEICHAI WP4.1N marine engine is upgraded based on WP4.1 series, with optimized fuel system, lower emission and higher operating efficiency.

WEICHAI WP4

WEICHAI WP4 marine diesel engine is a mature classic marine power unit, featured with high reliability and long service life for various medium vessels.

WEICHAI WP6

WEICHAI WP6 marine engine provides large power output, outstanding load resistance and stable continuous operation for medium and large marine vessels.

WEICHAI WP7

WEICHAI WP7C series marine diesel engines are specially designed for marine propulsion and auxiliary power. With reliable performance, low vibration and good fuel economy, widely used for inland cargo vessels, work boats and fishing boats.

WEICHAI WP10

WEICHAI WP10 marine diesel engine adopts inline 6-cylinder layout. It balances power and economy well, widely used for passenger ships and coastal cargo boats.

WEICHAI WP12

WEICHAI WP12 marine diesel engine features strong low-speed torque. It can cope with variable sea conditions, ideal for heavy-duty fishing vessels.

WEICHAI WP13

WEICHAI WP13 marine diesel engine is a high-power marine unit. Compact in size, it delivers outstanding performance for large cargo ships.

WEICHAI 6M21

Weichai 6M21 marine engine, 6-cylinder common rail, low noise & fuel saving, for high-speed and patrol boats.

WEICHAI 8M21

Weichai 8M21 high-power marine engine, strong power, anti-corrosion, for large vessels.

WEICHAI M26

Weichai M26 marine diesel engine, low fuel consumption, long service life, for fishing boats, cargo ships and marine generators.

WEICHAI M33

Weichai M33 large-bore marine engine, sturdy structure, for ship propulsion or emergency power.

WEICHAI M55

Weichai M55 marine diesel engine, high power model for ocean-going vessels. Featuring high reliability and good fuel economy, it serves as main or auxiliary engine for merchant ships and engineering vessels.

170 - WEICHAI 170 - China WEICHAI 170  Marine Engine

WEICHAI 170

Weichai 170 marine engine series includes 6-cylinder and 8-cylinder models with wide power coverage and multiple speed options. High reliability and easy maintenance, meeting marine emission requirements. Widely used as propulsion power for inland and coastal ships.

WEICHAI 6WH17

Weichai 6WH17 marine main engine, 6-cylinder, bore 170mm. Long service life over 20000 working hours. Suitable for inland and coastal cargo ships & workboats, compliant with IMO Tier II emission standard.

8WH17 - WEICHAI 8WH17 - China WEICHAI 8WH17  Marine Engine

WEICHAI 8WH17

Weichai 8WH17 marine diesel engine, 8-cylinder. Equipped with electronic common rail and twin turbochargers, fast load response. Designed for medium & large marine propulsion, easy maintenance.

Key Advantages

Powerful Performance

Custom-engineered WEICHAI Marine Engines deliver 20% higher digging efficiency and faster cycle times.

Fuel Efficiency

Advanced fuel-saving technology reduces consumption by up to 15%, lowering operational costs.

Durable Design

High-strength structural components and reinforced undercarriage for harsh working conditions.

Operator Comfort

Spacious cab with ergonomic controls, climate control, and low noise levels for all-day comfort.