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Demand a Superior Powertrain. Demand Detroit.

Powered, Connected and Driven by a Passion for Performance: Detroit®

Detroit® is the industry-leading original equipment manufacturer of state-of-the-art engines, axles and transmissions specifically designed for integrated, optimized performance and efficiency inside Freightliner and Western Star Trucks. The Detroit® product portfolio has expanded to include advanced safety systems and telematics, delivering a total trucking solution.


Demand the Best. Demand It All. Demand Detroit.

With Great Products and Passionate People, No One Does It Like Detroit®.

From components, safety systems and fleet management tools, to parts, service and your ideal business partner—only Detroit® can deliver it all. The unbeatable combination of superior products, passionate individuals and the benefits of being part of the Daimler global resources team make Detroit the premier industry leader in providing customers with an optimal business solution.

Detroit offers a full line of diesel engine platforms for both the heavy-duty and mid-range markets, along with axles, transmissions, safety systems and telematics for the commercial transportation and work industries. The entire Detroit engine lineup meets stringent EPA 2017 greenhouse gas regulation standards.

Detroit Genuine Parts are quality, OEM replacement parts for Detroit components. Detroit partners with industry-leading suppliers and technology providers to ensure that only the finest products are offered under the Detroit brand.



A proud tradition of building engines with strength, quality and dependability began for Detroit in 1938, when it was known as the General Motors (GM) Diesel Division. The heavy-duty, on-highway Series 71 engine was used extensively in military and road-building and was followed by the Series 53 model, another powerhouse with wide-ranging applications.


In 1965, GM Diesel became the Detroit Engine Division, partnering with the transmission and gas-turbine business of the Allison Division, forming Detroit Diesel Allison. Sales tripled. By the 1980s, Detroit Diesel had split from the Allison Division, when the Series 60 was developed to meet the demand for a cleaner, more fuel-efficient heavy-duty engine. The Series 60 quickly became the most popular heavy-duty engine in the North American class-8 segment.



A late-1980s joint venture between Penske Corporation and GM created Detroit Diesel Corporation. In 2000, Daimler-Chrysler acquired the business, making Detroit Diesel a subsidiary of Daimler Truck North America. In 2011, Detroit Diesel expanded its design and manufacturing scope beyond engines, simplifying its name to Detroit. Today, Detroit products and services are supported by a parts and distribution network of over 800 locations in North America.