Business Area

Business Area

Scope of Business Activities

Diesel United(Now IHI Power Systems Aioi Plant) established in 1988 by the merger between the diesel eingine devisions of IHI and Sumitomo Heavy industries (SHI), has succeeded to the production facilities and technical asset of the both companies accumulated through years and our total experience in engine manufacturing exceeds 50 years which is the basis of the high quality of our engine. Now our scope of business activities is the followings;


Design, manufacturing, sales, repair and maintenance of diesel/dual fuel engines and related equipment.

The above related consulting, engineering services.

2-stroke diesel engine 4-stroke diesel engine Low-pressure dual fuel engine


Parts sales Service Valuable equipment (LC-A...)