2011-2016 GM Duramax 6.6L LML Gaskets

Maintaining consistent internal pressure and preventing leaks in your engine is made easy with our selection of 2011-2016 GM 6.6L Duramax LML Gaskets! Here at Alligator Performance, we carry a variety of different gaskets and gasket sets that range from basic stock replacements to complete performance upgrades, so we're confident you'll find exactly what you need. Better yet, we only work with trusted manufacturers so you can outfit your Sierra/Silverado 2500/3500 with the best upgrades in the business. GM Duramax Fitments: 2011, 2012, 2013, 2014, 2015, 2016 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.