2004.5-2005 GM Duramax 6.6L LLY Transmission Pans

Upgrading the transmission pan on your 2004.5-2005 GM 6.6L Duramax LLY is a great way to improve the overall heat dissipation and performance of your transmission. The factory transmission pan lacks in fluid capacity, causing potential overheating issues during extreme applications. Aftermarket transmission pans for your 2500 or 3500 GM heavy-duty truck come equipped with larger oil capacities, cooling fins, and other features you truck's manufacturer overlooked to keep your transmission temps under control in every situation. The main benefit is the upgraded fluid capacity that delivers impressive heat dissipation even when towing or hauling heavy loads. 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.