Reliable Design for Marine Durability

The Weichai WP7 110–220 kW marine engine uses a high-strength block, piston, and bearing design to stay reliable under high explosion pressure. In addition, Weichai’s global supplier system ensures stable quality for all key components. The engine also passes strict durability tests, allowing it to reach an overhaul interval of more than 12,000 hours. Moreover, its built-in self-diagnosis, complete protection modes, and safe control strategy give crews dependable support during daily operation.

Strong Power with Fast Response

The electronic control unit manages fuel injection with high accuracy, keeping injection pressure high and speed changes small. Because of this setup, the WP7 delivers strong power with smooth output. Furthermore, its low-speed, high-torque layout gives a torque reserve of 20%–35%, helping the engine respond quickly and accelerate fast in many marine working conditions.

Fuel-Efficient and Cost-Saving

The WP7 uses an optimized injection pattern that adjusts pressure, volume, and timing with precision. As a result, fuel atomizes more fully and burns more completely. Its minimum fuel consumption rate reaches 200 g/kW·h, allowing ships to lower daily operating cost during long voyages.

Smooth, Quiet, and Cleaner Operation

With multi-stage injection—such as pilot and post injection—the engine reduces noise and vibration by up to 20% compared with mechanical pump systems. At the same time, its water-cooled exhaust manifold and tailpipe help reduce engine-room temperature. Moreover, the WP7 meets IMO Tier II, China Stage I, and China Stage II emission rules, offering clean and steady performance.

Practical, Flexible, and Easy to Integrate

The WP7 supports optional LCD smart gauges, vibration pads, and a hand-pump system to meet different customer needs. In addition, a horizontal air filter and rear-mounted turbocharger help lower engine height, making engine-room layout easier. The control system can also switch strategies based on different performance needs, and it supports various input and output signals for marine automation.