Ever since Doosan Infracore started producing diesel engines in 1958, the company has continued to manufacture its R&D capacities to stay at the forefront of the business in Korea. In 1975, Doosan began mass producing diesel engines at its very first large-scale plant. In a decade the company's production technology had advanced to the point that production of its 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. Since the year 2000, the company has developed technology for sophisticated common-rail engines, Tier 3-compliant engines and low-pressure natural gas 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 diesel engines and natural gas engines for trucks, forklifts, buses, construction machines, ships, generators and many more. Engines vary from 70 to 1,500 hp. Annual output is presently 75,000 units.
The company is continually engaged in expanding R&D capabilities to increase output and expand to more markets. Demand for stricter regulations governing engine emissions has led the company to make a compressed natural gas engine factory in the US during the year 2008, and a joint project factory in Xuzhou, China. The factory within China will have the capacity to produce 50,000 diesel engines per year, with production scheduled to begin in the year 2011.