2006-2007 GM 2500HD/3500HD 6.6L LBZ Duramax Transmission Coolers, Lines & Accessories

Your GM 6.6L transmission needs to maintain optimal temperatures to perform its best during towing, off-roading, and daily driving. High-performance activities generate excess heat, which can strain your transmission and lead to premature wear. For improved performance and long-term reliability, our selection of transmission coolers and thermal bypasses is the ideal solution. Whether you opt for upgraded coolers for enhanced cooling efficiency or thermal bypasses to regulate fluid temperatures, we have everything you need to keep your transmission running smoothly and reliably. Check out our selection of Transmission pans, filters, fluid for additional cooling performance! GM Duramax Fitments: 2006, 2007 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.