Duramax Diesel engine | |
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![]() Duramax LML | |
Overview | |
Manufacturer | DMAX Ltd. |
Production | 2001–present |
Layout | |
Configuration | 90° V8 |
Displacement | 6.6 L; 402.7 cu in (6,599 cc) |
Cylinder bore | 4.06 in (103 mm)[1] |
Piston stroke | 3.90 in (99 mm)[1] |
Cylinder block material | Cast gray iron |
Cylinder head material | Aluminum |
Valvetrain | OHV 4 valves x cyl. |
Valvetrain drive system | Gears |
Compression ratio | 16.8:1, 17.5:1 |
Combustion | |
Turbocharger | Garrett variable-geometry vane with intercooler |
Fuel system | High-pressure common-rail direct injection |
Management | Bosch |
Fuel type | Diesel |
Cooling system | Water-cooled |
Output | |
Power output | 250–550 hp (186–410 kW) |
Torque output | 460–1,050 lb⋅ft (624–1,424 N⋅m) |
Emissions | |
Emissions target standard | EPA |
Emissions control systems | Oxidizing catalyst, DPF, EGR |
Chronology | |
Predecessor | 6.2 and 6.5 L Detroit Diesel |
The Duramax V8 engine is a family of 6.6-liter diesel V8 engines produced by DMAX, a wholly owned subsidiary of General Motors in Moraine, Ohio. The Duramax block and heads are supplied from reliable vendors of General Motors.[vague] This engine was initially installed in 2001 Chevrolet and GMC trucks, and has since become an option in pickups, vans, and medium-duty trucks. In 2006, production at Moraine was reportedly limited to approximately 200,000 engines per year.[2] On May 9, 2007, DMAX announced the production of the 1,000,000th Duramax V8 at its Moraine facility,[2] followed by the 2,000,000th on March 24, 2017.[3]
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