Collection: 2007.5-2010 Duramax LMM 6.6L

Step into the modern era of diesel capability. The 6.6L LMM Duramax paired a heavily updated engine block architecture with the highly reliable 6-speed Allison automatic transmission. Delivering impressive factory horsepower and refined electronic controls, the LMM is a highly adaptable platform, making it a premier choice for heavy-duty towing, comfortable daily driving, and aggressive high-performance builds.

Whether you are seeking to optimize efficiency, reinforce your drivetrain, or unlock massive power gains, find everything you need here.