Marine Diesel EnginesMarine Diesel Engine

As a leading manufacturer of two-stroke diesel engine in the world, we are proud of our abundant production record and experience.

Mitsui Engineering & Shipbuilding Co., Ltd, now Mitsui E&S Machinery Co., Ltd. has been manufacturing diesel engines in a single engine model since it entered into the license agreement with Burmeister & Wain, now MAN Diesel & Turbo SE in 1926. In June 2018, the accumulated production of MITSUI-MAN B&W diesel engines reached 100 million horsepower on a power basis and exceeded 6,500 units on a quantity basis. Mitsui E&S Machinery Co., Ltd. has been building experience and an impressive track record as a world leading diesel engine manufacturer. Today, LNG, ethane, methanol and LPG are increasingly being seen as alternative fuel selections for propulsion of ships, given its economic and environmental advantages. In accordance with the trend, demands for dual fuel diesel engines for marine use are increasing, called ME-GI/GIE/LGIM/LGIP which utilize them as fuel as well as heavy fuel oil. We have delivery records of dual fuel engines ME-GI/GIE/LGIM and proceed our production capacity and facility to provide various fuel engines. We are also taking positive steps to develop technologies and products for environmental and energy conservation. We have been undertaking research and development efforts with the use of one of the world's largest diesel engines for testing purposes, the 4S50ME-T, installed in fiscal 2010. Turbo Hydraulic System2 (THS2) is developed as a waste heat recovery system from turbochargers with hydraulic.

Main Features

  • MES-M produces engines in a broad range: from 1,600 kW to 75,570kW output with the line-up from 260mm to 980mm cylinder bore and from 4 to 12 cylinders.
  • MES-M replies to customers' requests for design, manufacturing, and after services.

Delivery Records

2006: A joint corporation, CSSC-MES Diesel Co., Ltd. (CMD) was established as a diesel engine manufacturer in Shanghai by CSSC, Hudong Heavy Machinery Co., Ltd. (HHM) and MES.
2015: World’s first ME-LGIM methanol-operated two-stroke diesel engine completed
Japan’s first ME-GI LNG-operated two-stroke diesel engine completed
2016: World’s first ME-GIE ethane-operated two-stroke diesel engine completed
2018 Accumulated Production of 100 million BHP with a single brand
We are in a dominant position of two-stroke diesel engine makers in Japan with the market share more than 50%.

Press Release

Inquiries about products

Diesel Engine Div.
Diesel Engine Sales Dept.
Mitsui E&S Machinery Co., Ltd.

After-sales service

Within the guarantee period:

Diesel Technical Investigation Group, Quality Assurance Dept.
Mitsui E&S Machinery Co., Ltd.
+81-863-23-2534(within the guarantee period)
+81-863-23-2772(within the guarantee period)

After the guarantee period:

Technoservice Div.
Diesel Engine Service Dept.
Mitsui E&S Machinery Co., Ltd.
+81-863-23-2581(after the guarantee period)
+81-863-23-2085(after the guarantee period)


Inquiries about products・After-sales service

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