{"product_id":"mishimoto-2003-2005-chevrolet-gmc-6-6l-duramax-transmission-cooler-direct-fit","title":"Mishimoto 2003-2005 Chevrolet \u0026 GMC 6.6L Duramax Transmission Cooler - Direct Fit","description":"There's no greater enemy for a transmission than heat. Whether your 2003-2005 Chevy\/GMC 6.6L Duramax is a dedicated tow vehicle, hardworking fleet truck, or a daily driver with a liking for the drag-strip, you need to ensure that your transmission runs cool. Luckily, Mishimoto has developed a direct-fit transmission cooler to do just that. Our 2003-2005 Chevy\/GMC 6.6L Duramax transmission cooler utilizes a stacked-plate design for maximum durability and powerful cooling. Aside from It's durable construction, this transmission cooler is significantly larger than the stock core. The Mishimoto transmission cooler boasts a 174-percent greater core volume, and 192-percent greater fin surface area than the stock 2003-2005 Duramax transmission cooler. The included CNC-machined adapters connect directly to the stock transmission cooler lines for leak-free cooling. Direct-fit brackets and tailor-made hoses make installation easy. Like all Mishimoto products, this transmission cooler is backed up by our Lifetime Warranty with Accident Protection for worry free cooling as long as you own it.\nAutomatic transmission oil cooler designed to regulate fluid temperature and prevent overheating. Enhances transmission longevity, maintains performance, and features durable construction with a precise fit.\n\u003cul\u003e\n  \u003cli\u003eCNC-machined adapters make it easy to connect Mishimoto cooler to stock fluid lines or AN lines\u003c\/li\u003e\n  \u003cli\u003eDirect-fit for all 2003-2005 Chevrolet\/GMC with Allison transmission (LB7\/LLY)\u003c\/li\u003e\n  \u003cli\u003eStacked-plate construction for maximum durability and superior cooling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEnsure your transmission stays cool and performs optimally with the Mishimoto 03-05 Chevrolet and GMC 6.6L Duramax transmission cooler. Designed specifically for models with the Allison transmission (LB7\/LLY), this high-performance cooler features a stacked-plate construction that provides maximum durability and superior heat dissipation. Its larger core volume and increased fin surface area—174% and 192% greater respectively than stock—allow for enhanced cooling efficiency, which helps prevent overheating during heavy towing, hauling, or spirited driving. This product is ideal for work trucks, daily drivers, or vehicles subjected to demanding conditions, extending transmission longevity and maintaining consistent performance. The cooler’s precise fit and included CNC-machined adapters facilitate straightforward installation by connecting directly to stock transmission lines or AN fittings, minimizing installation time and ensuring leak-free operation. Made from durable materials, the Mishimoto transmission cooler is built to withstand harsh environments and is backed by a lifetime warranty for peace of mind. Whether you’re upgrading your truck for heavy-duty use or seeking reliable cooling performance, this cooler offers a robust solution that helps your transmission operate at optimal temperatures for years to come.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eCNC-machined adapters enable easy connection to stock or AN transmission fluid lines\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDirect-fit design for all 2003-2005 Chevrolet and GMC models with Allison transmissions (LB7\/LLY)\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eStacked-plate construction for maximum durability and efficient cooling\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2003 Chevrolet Silverado 2500 HD Base\u003cbr\u003e\n2003 Chevrolet Silverado 2500 HD LS\u003cbr\u003e\n2003 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2003 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2003 Chevrolet Silverado 3500 Base\u003cbr\u003e\n2003 Chevrolet Silverado 3500 LS\u003cbr\u003e\n2003 Chevrolet Silverado 3500 LT\u003cbr\u003e\n2003 GMC Sierra 2500 HD Base\u003cbr\u003e\n2003 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2003 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2003 GMC Sierra 2500 HD WT\u003cbr\u003e\n2003 GMC Sierra 3500 Base\u003cbr\u003e\n2003 GMC Sierra 3500 SLE\u003cbr\u003e\n2003 GMC Sierra 3500 SLT\u003cbr\u003e\n2004 Chevrolet Silverado 2500 HD Base\u003cbr\u003e\n2004 Chevrolet Silverado 2500 HD LS\u003cbr\u003e\n2004 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2004 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2004 Chevrolet Silverado 3500 Base\u003cbr\u003e\n2004 Chevrolet Silverado 3500 LS\u003cbr\u003e\n2004 Chevrolet Silverado 3500 LT\u003cbr\u003e\n2004 Chevrolet Silverado 3500 WT\u003cbr\u003e\n2004 GMC Sierra 2500 HD Base\u003cbr\u003e\n2004 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2004 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2004 GMC Sierra 2500 HD WT\u003cbr\u003e\n2004 GMC Sierra 3500 Base\u003cbr\u003e\n2004 GMC Sierra 3500 SLE\u003cbr\u003e\n2004 GMC Sierra 3500 SLT\u003cbr\u003e\n2004 GMC Sierra 3500 WT\u003cbr\u003e\n2005 Chevrolet Silverado 2500 HD Base\u003cbr\u003e\n2005 Chevrolet Silverado 2500 HD LS\u003cbr\u003e\n2005 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2005 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2005 Chevrolet Silverado 3500 Base\u003cbr\u003e\n2005 Chevrolet Silverado 3500 LS\u003cbr\u003e\n2005 Chevrolet Silverado 3500 LT\u003cbr\u003e\n2005 GMC Sierra 2500 HD Base\u003cbr\u003e\n2005 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2005 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2005 GMC Sierra 2500 HD WT\u003cbr\u003e\n2005 GMC Sierra 3500 Base\u003cbr\u003e\n2005 GMC Sierra 3500 SLE\u003cbr\u003e\n2005 GMC Sierra 3500 SLT\u003cbr\u003e\n2005 GMC Sierra 3500 WT\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbdoy\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: t\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbdoy\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Mishimoto","offers":[{"title":"Default Title","offer_id":53603892920593,"sku":"MMTC-DMAX-03SL","price":498.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/3830\/0689\/files\/b3cc88324cbcb940163903381f5cb3dc.jpg?v=1779967405","url":"https:\/\/shoprenegade.com\/products\/mishimoto-2003-2005-chevrolet-gmc-6-6l-duramax-transmission-cooler-direct-fit","provider":"Renegade Speed by Renegade Racing \u0026 Performance","version":"1.0","type":"link"}