In the year 1958, Doosan Infracore started to produce diesel engines and has continued R&D to help stay ahead of the curve within Korea's heavy and material handling industry. Doosan began during 1975, manufacturing diesel engines on a mass scale at its very first large scale facility. In a decade the company's production technology had progressed to the point that production of its very own diesel engine model was possible. Doosan's leadership position within the business was secured. In the year 1995 the company made its very first low-emission diesel engine, followed by commercial vehicle CNG engines three years later. Ever since the year 2000, the company has developed technology for Tier 3-compliant engines, low-pressure natural gas engines and sophisticated common-rail engines. To be able comply with strict Euro emission control standards, the company developed a low-emission, heavy-duty diesel engine model in the year 2007.
Doosan has a lot of facilities throughout the globe which help manufacture 60 different engine models, as well as materials and parts. Products include natural gas engines and diesel engines for forklifts, trucks, construction equipment, buses, generators, ships and many more. Engines vary from 70 to 1,500 horse power. Yearly output is now 75,000 units.
The company is continually engaged in expanding R&D capabilities to expand to more markets and increase output. Demand for more stringent regulations governing engine emissions has led the company to build a compressed natural gas engine factory within the US during the year 2008, and a joint venture plant within Xuzhou, China. The plant in China can make 50,000 diesel engines per year, with production scheduled to start in the year 2011.