Changchai is specializing in producing small power multi-cylinder and single-cylinder diesel engines. In the small diesel industry, Changchai has the most wide variety of products, the most extensive power coverage, optimum qualities, highest visibility, and the leading products have their own intellectual property rights. The single-cylinder diesel engines involve S, ZS, R, F, L, D, SQD, H about eight series and the multi-cylinder involve 75-80, 85-90, 4L, 102 series diesels. With the power output ranging from 1,7 to 72 KW, the product of the company can be used as power unit for light-duty truck, low-speed coaches, tractor, combine, power generators, engineering, ship and boat.