2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Head Studs & Main Studs

Aftermarket Head Studs are a popular upgrade for your diesel. Your 2011-2016 GM 6.6L Duramax LML, you're going to need some help. These premium head studs are vital for high-performance engines sporting high compression or turbochargers, both of which require even and accurate clamping forces in every situation. These studs also provide the ability to obtain much more accurate torque values as the studs won't twist during tightening, ensuring consistent and reliable performance of your engine and its components.  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.