2004.5-2005 GM Duramax 2500HD/3500HD LLY Parts & Accessories
Your Duramax 2500HD/3500HD LLY is still a mean, capable truck that can handle all sorts of tough applications both on and off the pavement, and the good news is you can get even better performance and capability with parts and accessories from right here at Alligator Performance. We have everything you need to get the most out of your tough Duramax LLY build. Our selection of Duramax LLY engine upgrades can give your HD Silverado or HD Sierra a bunch more horsepower and torque that will have your Duramax ripping around in no time. We have tonneau covers that add a clean look and provide security for your trucks. We carry a variety of Duramax suspension upgrades including 2500HD/3500HD Leveling Kits and Lift Kits that give your 2500 or 3500 a big, bad look and clearance for bigger tires. Our 2500HD/3500HD exterior upgrades give your Silverado or Sierra build a unique look that's certain to catch attention. New aftermarket bumpers will give your Duramax LLY some more protection, an aggressive look that is sure to catch attention. GM Duramax Fitments: 2004, 2005 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.