VETUS M4.56 Marine Diesel Engine

The VETUS M4.56 Marine Diesel Engine is a compact and powerful four-cylinder marine engine engineered to provide dependable performance, smooth operation, and excellent fuel efficiency for sailing yachts, displacement boats, and small commercial vessels. Designed with reliability and ease of maintenance in mind, this engine reflects VETUS’ commitment to practical marine propulsion solutions.

Powered by a 4-cylinder diesel configuration, the M4.56 delivers up to 52 horsepower (approx.), offering strong low-end torque and stable cruising performance. Its naturally aspirated design ensures straightforward operation, consistent power output, and reduced mechanical complexity, making it ideal for long-distance cruising and everyday marine use.

The engine features a robust cast-iron cylinder block and high-quality internal components built to withstand demanding marine conditions. A closed freshwater cooling system with heat exchanger protects the engine from corrosion while maintaining optimal operating temperatures in both freshwater and saltwater environments.

The VETUS M4.56 is engineered for low vibration and quiet operation, enhancing onboard comfort. Its compact dimensions allow for easy installation in tight engine compartments, while accessible service points simplify routine maintenance and reduce downtime.

Ideal for repowering projects and new installations, the VETUS M4.56 Marine Diesel Engine delivers reliable propulsion, fuel-efficient operation, and long service life—making it a trusted choice for boat owners seeking durability and practical marine performance.