{"product_id":"mishimoto-11-14-chevrolet-gmc-6-6l-duramax-lml-transmission-cooler","title":"Mishimoto 11-14 Chevrolet \/ GMC 6.6L Duramax (LML) Transmission Cooler","description":"There's no greater enemy for a transmission than heat. Whether your 2011-2014 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 2011-2014 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 41-percent greater core volume, and 73-percent greater fin surface area than the stock 2011-2014 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 2011-2014 Chevrolet\/GMC with Allison transmission (LML)\u003c\/li\u003e\n  \u003cli\u003eStacked-plate construction for maximum durability and superior cooling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMaintaining optimal transmission temperature is crucial for the longevity and performance of your Chevrolet or GMC 6.6L Duramax engine. The Mishimoto transmission cooler is engineered to handle demanding conditions, whether you're towing heavy loads, operating in fleet service, or enjoying spirited drives on the drag strip. Its direct-fit design ensures seamless installation on 2011-2014 models, providing effective cooling for your vehicle's automatic transmission. Constructed with stacked-plate technology, this cooler delivers maximum durability alongside superior heat dissipation, helping to prevent overheating and extend transmission lifespan. Its larger core volume and increased fin surface area—41% and 73% respectively—offer enhanced cooling capacity over stock units, making it suitable for both daily driving and heavy-duty applications. The included CNC-machined adapters connect directly to stock transmission lines, providing a leak-free, secure fit. Custom brackets and hoses simplify installation, ensuring a clean and straightforward upgrade. Backed by Mishimoto's lifetime warranty with accident protection, this transmission cooler provides worry-free cooling performance for as long as you own your vehicle, safeguarding your transmission against heat-related damage and maintaining optimal operational efficiency.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eCNC-machined adapters for easy connection to stock or AN fluid lines\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDirect-fit design for all 2011-2014 Chevrolet and GMC models with Allison (LML) transmissions\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eStacked-plate construction for maximum durability and superior cooling\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2011 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2011 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2011 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2011 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2011 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2011 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2011 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2011 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2011 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2011 GMC Sierra 2500 HD WT\u003cbr\u003e\n2011 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2011 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2011 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2011 GMC Sierra 3500 HD WT\u003cbr\u003e\n2012 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2012 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2012 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2012 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2012 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2012 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2012 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2012 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2012 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2012 GMC Sierra 2500 HD WT\u003cbr\u003e\n2012 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2012 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2012 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2012 GMC Sierra 3500 HD WT\u003cbr\u003e\n2013 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2013 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2013 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2013 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2013 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2013 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2013 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2013 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2013 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2013 GMC Sierra 2500 HD WT\u003cbr\u003e\n2013 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2013 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2013 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2013 GMC Sierra 3500 HD WT\u003cbr\u003e\n2014 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2014 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2014 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2014 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2014 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2014 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2014 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2014 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2014 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2014 GMC Sierra 2500 HD WT\u003cbr\u003e\n2014 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2014 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2014 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2014 GMC Sierra 3500 HD WT\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; 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