东风康明斯发动机有限公司由东风汽车公司和美国康明斯公司以50：50的股权比例于1996年6月设立。2003年4月, 通过增资扩股，公司成为包括东风汽车股份有限公司柴油发动机分公司、东风康明斯发动机有限公司，以及康明斯独资拥有的康明斯（襄樊）机加工公司资产和业务的一家扩大的合资公司。扩大后的东风康明斯发动机有限公司注册资本逾一亿美元，由东风汽车股份有限公司和康明斯公司各占50%股份。东风汽车公司是中国最大的商用车和乘用车制造和销售企业之一。康明斯公司是当今世界设计、生产和销售柴油发动机和压缩天然气发动机的领先企业。东风康明斯将得到康明斯公司在产品开发、制造、质量和管理领域的有力支持，不断提高企业和产品竞争力。通过滚动式技术引进战略，公司在产品开发上将逐步实现与欧美市场的同步发展，从而跳跃式地提升中国中重型柴油机的技术水平；此外，公司自己拥有的技术中心，在引进的电控平台基础上针对中国的具体情况，可量身定做，满足不同客户的全方位、多层次的需求。
    公司的产品主要为康明斯排量为3.9升（60-150HP）、5.9升（160-235HP）、8.3升（220-325HP）的B、C系列机械式燃油系统发动机，排放达欧洲2号车用排放法规和非公路用机动设备第一阶段排放标准，以及康明斯ISBe、ISCe和ISLe系列3.9到9升的全电控柴油机，功率范围为100-450马力，排放达欧洲三号和四号汽车排放标准以及欧美非公路用机动设备第二阶段和第三阶段排放标准。 公司总占地面积26.23公顷，约270300平方米，2003年产值约40亿元人民币。

    Dongfeng Cummins Engine Co. Ltd. (DCEC) was a 50:50 joint venture company established between Dongfeng Motor Corporation (DFM) and Cummins Inc. (USA) in June 1996. After capital expansion in April 2003, Dongfeng Cummins Engine Co. Ltd. became an entity, combining the assets and business of the Diesel Engine Branch Company of Dongfeng Automobile Co. Ltd. (DFAC), Cummins wholly owned Cummins (Xiangfan) Machining Co. Ltd. and the former C series engine JV between DFAC & Cummins. The registered capital of the expanded DCEC is over USD 100 Million. DFAC & Cummins hold 50% share each respectively. DFM is one of the largest manufacturer of commercial vehicle & passenger vehicle in China. Cummins is a leading company in product development, design, manufacturing and sales of diesel and CNG engines in the world. DCEC will benefit from strong support from Cummins in product development, manufacturing, quality, management to continuously increase its competitiveness. Through a rolling technology introduction strategy, the product development of the company will be eventually synchronized with American & European markets, significantly increasing the technology level of medium to heavy duty diesel engines of China. With the introduced electronic control engine platform, the technical center owned by the company can design, develop and test engines specifically to meet diversified customer needs according to the local requirements in China.
    The company’s main product line-up includes B & C series engines of mechanical fuel system with displacement volume covering 3.9L(60-150HP), 5.9L(160-235HP), 8.3L(220-325HP), which comply with Euro II emission standards for motor vehicles and Tier I emission standards for off-highway mechanical equipment in Europe. The company also produces ISBe, ISCe & ISLe series 3.9 to 9 liters full electronic control diesel engines with a power range from 100 to 450 horsepower, which complies with Euro III & IV emission standards for motor vehicles, Tier II & Tier III emission standards for off-highway mechanical equipment in America & Europe.
The total area of the company is 26.23 hectares, approx. 270300 square meters, Annual production value in year 2003 is approximately RMB 4 billions.