Anhui Quanchai Engine Co., Ltd. is an engine manufacturer in QuanJiao, Anhui, China. It is the only diesel engine manufacturer in the state/province of Anhui, and manufactures 4-cylinder engines. Quanchai, sometimes listed as QuanChai, is the largest part of the Anhui Quanchai Group, which also includes TianLi Engine and TianHe Machinery. The company was founded in 1998, and has capacity to manufacture 600,000 engines per year.