ll MHI marine diesel engines are manufactured to the highest standards applying state-of-the-art production facilities combined with experienced workmanship.

Production is carried out exclusively at the Sagamihara Works in Japan, a facility conforming to strict ISO-9001 international quality standards as certified by DNV (Det Norske Veritas, Norway).
MHI has supplied more than 120,000 marine diesel engines for both main propulsion and auxiliary applications in ships and boats. They are preferred especially in applications demanding dependable, continuous operation combined with outstanding durability, excellent fuel efficiency, and minimal requirements with respect to lubricants and spare parts. In this way, MHI marine engines offer the dual advantages of ease of operation and optimum ease of maintenance.

Marine Engine Line up

SA/R Series

The Mitsubishi SR series, offered in three model families – of in-line 6, V-12 and V-16 cylinders – enable significant saving in operating costs by virtue of their breakthroughs in component design for enhanced fuel efficiency.

Especially without peer, and considered a new benchmark in its class, is the S6R2-MTK3L, a derivative model of the SR family featuring a longer stroke and high displacement. Where competing units run at 1800 rpm, the S6R2-MTK3L delivers over 1200 PS at only 1500 rpm. Also, its torque produces ideally flat characteristics and it can operate without lag in 100-foot class tugs.

Additionally, the S6R2 has an extraordinary fuel consumption ratio as low as 145g/PShr (based on experimental laboratory data). For more information, please click here.

SU Series

Reliability and Durability are the most significant feature of the Mitsubishi SU engines.

Abundant sales performance since the SU engines developed in the Marine market have been proving Reliability and Durability, and, as for the engine manufactured consistently in MHI Japan. Moreover all SU engines have been backed up with the skilled MHI service.

The SU engine’s series, in line 6 and 8, V-12 and V-16 cylinders, covered with the power range from 1007 to 3581mkW at 900 to 1200rpm, have the main propulsion for tag and supply boat, auxiliary, and gen set for electric propulsion specification. For more information, please click here.