M21 Series

Safe and Reliable

High-strength design for the engine block, cylinder head, and crankshaft; key components such as the turbocharger and high-pressure fuel pump are sourced from world-class global suppliers.

Underwent 2000 h of rigorous durability testing to achieve high reliability over the effective service life, ensuring optimal vessel operational availability.

Powerful Performance

Two-stage turbocharging and two-stage intercooling provide a high power density of up to 59 kW/L for robust performance.

Low-speed, high-torque design features rapid transient response and quick acceleration.

Economical and Fuel-Efficient

Precisely controlled by the ECU, the 2200 bar high-pressure common rail (HPCR) fuel system achieves a minimum specific fuel consumption of 204 g/kW·h for extended range.

Optimized piston ring structure and camshaft profiles ensure an oil consumption rate of no more than 0.3 g/kW·h.

Comfortable and Environmentally Friendly

Low-noise design, including pre-injection calibration and intake silencing, results in an overall engine noise level not exceeding 105 dB(A).

Complies with EPA 3 and IMO Tier II emission standards.

Intelligent Connectivity

Proprietary ECU, secure and controllable, integrated with a smart cloud platform to enable remote diagnostics, maintenance guidance, and service reminders.

Comprehensive diagnostic system with reserved sensor interfaces, meeting the requirements for intelligent vessels.