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Cometic GM LB7/LLY/LBZ/LMM/LGH/LML Duramax.062in MLX Cylinder 4.130in Bore RHS Head Gasket

Experience the ultimate in engine sealing technology with Cometic's MLX (Multi-Layer Stopper) head gasket. Engineered to provide superior combustion chamber sealing and improved clamp load, this gasket is designed to meet the demands of your high-performance Duramax engine.

  • No sealants or re-torque required
  • Integrated stopper layer for enhanced sealing and reduced bore distortion
  • Manufactured from the same high-quality materials as Cometic's MLS Head Gaskets

Upgrade your engine's performance and reliability with Cometic's MLX head gasket, specifically designed for GM LB7/LLY/LBZ/LMM/LGH/LML Duramax engines with a 4.130in bore.

This product fits more vehicles than loaded. Please select your vehicle to see all fits.

Make Model Year Type
Chevrolet Express 2500 2006 Base
Chevrolet Express 2500 2006 LS
Chevrolet Express 2500 2006 LT
Chevrolet Express 2500 2007 Base
Chevrolet Express 2500 2008 Base
Chevrolet Express 2500 2009 Base
Chevrolet Express 2500 2010 Base
Chevrolet Express 2500 2011 Base
Chevrolet Express 2500 2012 Base
Chevrolet Express 2500 2013 Base
Chevrolet Express 2500 2014 Base
Chevrolet Express 2500 2015 Base
Chevrolet Express 2500 2016 Base
Chevrolet Express 3500 2006 Base
Chevrolet Express 3500 2007 Base
Chevrolet Express 3500 2008 Base
Chevrolet Express 3500 2009 Base
Chevrolet Express 3500 2010 Base
Chevrolet Express 3500 2011 Base
Chevrolet Express 3500 2011 LS
Chevrolet Express 3500 2011 LT
Chevrolet Express 3500 2012 Base
Chevrolet Express 3500 2012 LS
Chevrolet Express 3500 2012 LT
Chevrolet Express 3500 2013 Base
Chevrolet Express 3500 2014 Base
Chevrolet Express 3500 2015 Base
Chevrolet Express 3500 2015 LS
Chevrolet Express 3500 2015 LT
Chevrolet Express 3500 2016 Base
Chevrolet Express 3500 2016 LS
Chevrolet Express 3500 2016 LT
Chevrolet Silverado 2500 2001 Base
Chevrolet Silverado 2500 2001 LS
Chevrolet Silverado 2500 2001 LT
Chevrolet Silverado 2500 2002 Base
Chevrolet Silverado 2500 2002 LS
Chevrolet Silverado 2500 2002 LT
Chevrolet Silverado 2500 2003 Base
Chevrolet Silverado 2500 2003 LS
Chevrolet Silverado 2500 2003 LT
Chevrolet Silverado 2500 2004 Base
Chevrolet Silverado 2500 2004 LS
Chevrolet Silverado 2500 2004 LT
Chevrolet Silverado 2500 2004 WT
Chevrolet Silverado 2500 HD 2001 Base
Chevrolet Silverado 2500 HD 2001 LS
Chevrolet Silverado 2500 HD 2001 LT
Chevrolet Silverado 2500 HD 2002 Base
Chevrolet Silverado 2500 HD 2002 LS
Chevrolet Silverado 2500 HD 2002 LT
Chevrolet Silverado 2500 HD 2003 Base
Chevrolet Silverado 2500 HD 2003 LS
Chevrolet Silverado 2500 HD 2003 LT
Chevrolet Silverado 2500 HD 2004 Base
Chevrolet Silverado 2500 HD 2004 LS
Chevrolet Silverado 2500 HD 2004 LT
Chevrolet Silverado 2500 HD 2004 WT
Chevrolet Silverado 2500 HD 2005 Base
Chevrolet Silverado 2500 HD 2005 LS
Chevrolet Silverado 2500 HD 2005 LT
Chevrolet Silverado 2500 HD 2005 WT
Chevrolet Silverado 2500 HD 2006 LS
Chevrolet Silverado 2500 HD 2006 LT
Chevrolet Silverado 2500 HD 2006 WT
Chevrolet Silverado 2500 HD 2007 LT
Chevrolet Silverado 2500 HD 2007 LTZ
Chevrolet Silverado 2500 HD 2007 WT
Chevrolet Silverado 2500 HD 2008 LT
Chevrolet Silverado 2500 HD 2008 LTZ
Chevrolet Silverado 2500 HD 2008 WT
Chevrolet Silverado 2500 HD 2009 LT
Chevrolet Silverado 2500 HD 2009 LTZ
Chevrolet Silverado 2500 HD 2009 WT
Chevrolet Silverado 2500 HD 2010 LT
Chevrolet Silverado 2500 HD 2010 LTZ
Chevrolet Silverado 2500 HD 2010 WT
Chevrolet Silverado 2500 HD 2011 LT
Chevrolet Silverado 2500 HD 2011 LTZ
Chevrolet Silverado 2500 HD 2011 WT
Chevrolet Silverado 2500 HD 2012 LT
Chevrolet Silverado 2500 HD 2012 LTZ
Chevrolet Silverado 2500 HD 2012 WT
Chevrolet Silverado 2500 HD 2013 LT
Chevrolet Silverado 2500 HD 2013 LTZ
Chevrolet Silverado 2500 HD 2013 WT
Chevrolet Silverado 2500 HD 2014 LT
Chevrolet Silverado 2500 HD 2014 LTZ
Chevrolet Silverado 2500 HD 2014 WT
Chevrolet Silverado 2500 HD 2015 High Country
Chevrolet Silverado 2500 HD 2015 LT
Chevrolet Silverado 2500 HD 2015 LTZ
Chevrolet Silverado 2500 HD 2015 WT
Chevrolet Silverado 2500 HD 2016 High Country
Chevrolet Silverado 2500 HD 2016 LT
Chevrolet Silverado 2500 HD 2016 LTZ
Chevrolet Silverado 2500 HD 2016 WT
Chevrolet Silverado 2500 HD Classic 2007 LS
Chevrolet Silverado 2500 HD Classic 2007 LT
Chevrolet Silverado 2500 HD Classic 2007 WT
Cometic manufactures engine gaskets for both domestic and import vehicles. Gasket kits are available for both bottom end and top end for the most popular vehicles, while their MLS head gaskets are known to be some of the best in the industry. Cometic’s 70,000 square foot, state-of-the-art R&D and manufacturing facility allows them to design gaskets for engines using the latest technology, such as Multi-Layer Steel (MLS) gaskets as well as using synthetic blends such as Aramid Fiber.
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