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GM Duramax Diesel

Chevrolet and GMC Duramax Diesel Pickups

GM starting putting the Duramax diesel engine in their Chevy and GM HD pickups back in 2001.  Since then the engine has proved itself to be a great workhorse.  Quiet operation with great fuel economy and power quickly made fans out of anyone who owns one.  We carry Duramax repair parts for all years of 6.6 Duramax engines including LB7, LLY, LBZ, LMM, LGH, and LML versions.  You will find the best prices on injectors, turbos, injection pumps, head gaskets, and complete engine rebuild kits.

2001-2004 LB7 Duramax - This engine was the first Duramax engine offered from GM.  Only the late 2004 models produced in California had an EGR system.  The horsepower was rated 300 and torque was 520.

2004.5-2005 LLY Duramax - All LLY engines came with an EGR system in place.  These engines also received upgraded injectors, a variable geometry turbo, and a few other upgrades over the previous generation.  Horsepower was raised to 205 and torque to 605.

2006-2007 LBZ Duramax - This generation of engine received more fueling system upgrades, a larger egr cooler, and internal engine durability upgrades.  The horsepower was increased to 360 and torque to 650.

2007.5-2010 LMM Duramax - This was the first year that the diesel particulate filter appeared on the Duramax engines.  The injectors were upgraded from the previous design. The EGR cooler system also was revised.  Horsepower was increased to 365 and torque to 660.

2011-2016 LML Duramax - A new injection system was introduced this year that included the often failing CP4 injection pump.  Urea injection came standard on this version as well.  horsepower was increased to 397 and torque to 756 ft/lbs.


We also have a great selection of Duramax performance parts from great manufacturers like PPE, MBRP, S&B, BD Diesel, ATS, Industrial Injection, and many other top of the line manufacturers.  We have free shipping on many performance Duramax parts like injectors, turbos, exhaust systems, cold air intakes, programmers, and transmission pans.  

Choose Your Year of Truck to Shop for Parts:


6.2 and 6.5 GM Diesel Repair and Replacement Parts01-04 Duramax LBZ Performance and Replacement Parts

04.5-05 Duramax LLY Repair and Performance Parts








06-07 Duramax LBZ Repair and Performance Parts07-10 Duramax LMM Repair and Performance Parts11-17 Duramax LML Repair and Performance Parts