2004.5-2005 GM 2500HD/3500HD 6.6L LLY Duramax Turbo Gaskets & Accessories

Replacing the OEM turbo gaskets on your 2004.5-2005 GM 6.6L Duramax is a common upgrade many Sierra/Silverado owners make on their rig to ensure consistent and reliable performance of their turbo charger. Our turbo gaskets provide a leak-free seal, even under high boost pressures and extreme heat, to prevent exhaust leaks and maintain turbo efficiency. Here at Alligator Performance, we carry a variety of aftermarket turbo gaskets that help your truck better endure high temperatures and high pressures during every performance application. Take your trucks turbo charger to the next level with our full selection of Turbo Upgrades. 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.