During 1958, Doosan Infracore started to make 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 the year 1975, manufacturing diesel engines on a mass scale at its very first large scale facility. Within 10 years the production technology of the company had advanced 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 Doosan produced its very first low-emission diesel engine, followed by commercial vehicle CNG engines after three years. 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 follow stringent Euro emission control standards, the company developed a low-emission, heavy-duty diesel engine model during the year 2007.
Doosan Infracore has facilities worldwide to produce 60 different engine models, as well as parts and materials. Products comprise natural gas engines and diesel engines for trucks, forklifts, construction machinery, buses, ships, generators and more. Engines vary from 70 to 1,500 horse power. Yearly output is presently 75,000 units.
The company is continually engaged in expanding R&D capabilities to expand to more markets and increase output. Demand for stricter regulations governing engine emissions has led the company to make a compressed natural gas engine factory in the United States during the year 2008, and a joint project plant within Xuzhou, China. The factory in China could produce 50,000 diesel engines every year, with production scheduled to start in the year 2011.