Series 51 Series 53 Series 55 Series 71 Series 92 Series 110 Series 149 Series 638 (rebranded VM Motori 638) Series 700 Series 2000 Series 4000 Series SUN 8.2 Liter "Fuel Pincher" 6.2 Liter 6.5 Liter To know the series model one can find out by checking the layout of the overall engine Engine model number Notes Joint ventures 50/50 Joint Venture with Bosch LLC- Detroit North America Fuel Systems Remanufacturing Partners Daimler Truck North America, Detroit Diesel Corporation's parent company, and Walmart collaborated to build the first-ever hybrid electric Freightliner Cascadia in 2010 Clean Air Act violations In 1998, the EPA announced fines totaling $83.4 million against Detroit Diesel and six other diesel engine manufacturers, the largest fine to date, which evaded testing by shutting down emissions controls during highway driving while appearing to comply with lab testing. The manufacturers also agreed to spend more than $1 billion to correct the problem. The trucks used engine ECU software to engage pollution controls during the 20-minute lab tests to verify compliance with the Clean Air Act, but then disable the emissions controls during normal highway cruising, emitting up to three times the maximum allowed NOx pollution. In 2016, Detroit Diesel agreed to pay US$28.5 million to resolve violations of the US federal Clean Air Act. The company sold 7,786 heavy-duty diesel engines, which were assembled approximately 80% complete in 2009, including the crankshaft, block, pistons, and connecting rods, the short block engines were stored temporarily and completed the remaining assembly in early 2010 for use in trucks and buses of in model year 2010. These engines were alleged not to comply with stricter 2010 emission standards. See also Stewart & Stevenson References External links Detroit Diesel Corporation official website Military Applications of 6V53 Engines Daimler Truck American subsidiaries of foreign companies Engine manufacturers of the United States Auto parts suppliers of the United States Diesel engine manufacturers Electrical generation engine manufacturers Marine engine manufacturers Motor vehicle engine manufacturers Manufacturing companies based in Detroit Manufacturing companies established in 1938 1938 establishments in Michigan Former General Motors subsidiaries