DMAX (engines)

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DMAX of Moraine, Ohio, is a manufacturer of diesel engines for trucks. DMAX, originally announced in December 1998, is a 60-40 joint venture[1] between and operated by General Motors and Isuzu. Diesel engine production started in July 2000.[2] The company's Duramax V8 engine has been extremely successful for GM, raising that company's diesel pickup market share to 30% in 2002, up from approximately 5% in 1999.[3]

The DMAX plant was built on a land grant site adjacent to a GM plant that made the 6.2/6.5 L Diesel V8. Production of that engine began in 1982.

The plant is planning to increase production from 580 engines a day, in 2017, to 700 engines a day.[4]



  1. ^ "DMAX Marks 10-Year Manufacturing Milestone". GM. Retrieved 23 September 2017.
  2. ^ "Corporate History". Isuzu Motors. Retrieved 23 September 2017.
  3. ^ "GM-Isuzu Duramax Diesel Joint Venture At Risk? (22 Dec 2009)". Retrieved 23 September 2017.
  4. ^ Navera, Tristan (11 Apr 2017). "GM, Isuzu hit the gas on expansion of engine production at joint factory". The Dayton Business Journal. Retrieved 23 September 2017.

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