GM Duramax 2500HD / 3500HD Performance Parts & Accessories

The Duramax is one of the most legendary diesel motors on the market, and there's a ton of power, torque, and performance hiding within that's just waiting to be unlocked. We here at Alligator Performance have all the parts and accessories you need to make your tough Duramax truck one of the most badass things you can find on the street, at the sled pull, or out on the trail. We have all the Duramax performance mods you need to add enormous power so that your Duramax can rip around town and blow away your competition. We carry a ton of Duramax suspension parts, including Duramax lift kits and Duramax leveling kits so that your truck gets the ride height it needs to fit huge wheel and tire combinations for both an awesome look and more ground clearance. Our Duramax lighting parts will give your awesome GM truck a whole new look and more output for your off-road and overland adventures. GM Duramax Fitments: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 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.