{"product_id":"mishimoto-2017-gmc-6-6l-duramax-l5p-transmission-thermal-bypass-valve-kit","title":"Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit","description":"\u003cp\u003e\u003c\/p\u003e\u003cp\u003eThe Mishimoto thermal bypass valve kit is specifically designed for your 2017-2019 Chevrolet Silverado and GMC Sierra 2500HD\/3500HD with the 6.6L Duramax L5P engine. This upgrade enhances the efficiency of your truck's transmission cooling system by replacing the stock in-line thermal bypass valve, which is prone to failure and can lead to overheating. Crafted from durable CNC-machined billet aluminum, this kit not only provides superior strength but also features a sleek black anodized finish that resists corrosion and wear. Proper cooling is critical for maintaining transmission health, especially during heavy towing or demanding driving conditions, and Mishimoto’s design ensures optimal fluid flow and heat dissipation through strategically machined internal passages and cooling fins. The fully serviceable thermostat included allows for rapid warm-up in cold climates, while the optional bypass can be installed for constant cooling in warm weather or extreme conditions. This versatile kit is engineered for easy installation in less than an hour, making it a practical upgrade for your Duramax-powered truck. With Mishimoto’s commitment to quality and performance, this thermal bypass valve kit is built to last a lifetime, backed by the Mishimoto Lifetime Warranty, ensuring peace of mind on every drive.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eDurable CNC-machined billet aluminum construction for longevity and strength\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEliminates failure-prone stock bypass valve to prevent overheating\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eImproves fluid flow and heat dissipation with strategically machined internal passages and cooling fins\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes a fully serviceable thermostat for fast cold-weather warm-up\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eOptional thermostat bypass for continuous cooling in hot climates or towing conditions\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEasy installation in less than 1 hour, designed for a perfect fit on 2017-2019 Chevrolet Silverado and GMC Sierra 2500HD\/3500HD with 6.6L Duramax L5P engine\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFinished with a corrosion-resistant black anodized coating and backed by Mishimoto’s lifetime warranty\u003c\/li\u003e\u003c\/ul\u003e\n\n\u003cp\u003eFitment:\n\u003cbr\u003e2017 Chevrolet Silverado 2500 HD High Country\n\u003cbr\u003e2017 Chevrolet Silverado 2500 HD LT\n\u003cbr\u003e2017 Chevrolet Silverado 2500 HD LTZ\n\u003cbr\u003e2017 Chevrolet Silverado 2500 HD WT\n\u003cbr\u003e2017 Chevrolet Silverado 3500 HD High Country\n\u003cbr\u003e2017 Chevrolet Silverado 3500 HD LT\n\u003cbr\u003e2017 Chevrolet Silverado 3500 HD LTZ\n\u003cbr\u003e2017 Chevrolet Silverado 3500 HD WT\n\u003cbr\u003e2017 GMC Sierra 2500 HD Base\n\u003cbr\u003e2017 GMC Sierra 2500 HD Denali\n\u003cbr\u003e2017 GMC Sierra 2500 HD SLE\n\u003cbr\u003e2017 GMC Sierra 2500 HD SLT\n\u003cbr\u003e2017 GMC Sierra 3500 HD Base\n\u003cbr\u003e2017 GMC Sierra 3500 HD Denali\n\u003cbr\u003e2017 GMC Sierra 3500 HD SLE\n\u003cbr\u003e2017 GMC Sierra 3500 HD SLT\n\u003cbr\u003e2018 Chevrolet Silverado 2500 HD High Country\n\u003cbr\u003e2018 Chevrolet Silverado 2500 HD LT\n\u003cbr\u003e2018 Chevrolet Silverado 2500 HD LTZ\n\u003cbr\u003e2018 Chevrolet Silverado 2500 HD WT\n\u003cbr\u003e2018 Chevrolet Silverado 3500 HD High Country\n\u003cbr\u003e2018 Chevrolet Silverado 3500 HD LT\n\u003cbr\u003e2018 Chevrolet Silverado 3500 HD LTZ\n\u003cbr\u003e2018 Chevrolet Silverado 3500 HD WT\n\u003cbr\u003e2018 GMC Sierra 2500 HD Base\n\u003cbr\u003e2018 GMC Sierra 2500 HD Denali\n\u003cbr\u003e2018 GMC Sierra 2500 HD SLE\n\u003cbr\u003e2018 GMC Sierra 2500 HD SLT\n\u003cbr\u003e2018 GMC Sierra 3500 HD Base\n\u003cbr\u003e2018 GMC Sierra 3500 HD Denali\n\u003cbr\u003e2018 GMC Sierra 3500 HD SLE\n\u003cbr\u003e2018 GMC Sierra 3500 HD SLT\n\u003cbr\u003e2019 Chevrolet Silverado 2500 HD High Country\n\u003cbr\u003e2019 Chevrolet Silverado 2500 HD LT\n\u003cbr\u003e2019 Chevrolet Silverado 2500 HD LTZ\n\u003cbr\u003e2019 Chevrolet Silverado 2500 HD WT\n\u003cbr\u003e2019 Chevrolet Silverado 3500 HD High Country\n\u003cbr\u003e2019 Chevrolet Silverado 3500 HD LT\n\u003cbr\u003e2019 Chevrolet Silverado 3500 HD LTZ\n\u003cbr\u003e2019 Chevrolet Silverado 3500 HD WT\n\u003cbr\u003e2019 GMC Sierra 2500 HD Base\n\u003cbr\u003e2019 GMC Sierra 2500 HD Denali\n\u003cbr\u003e2019 GMC Sierra 2500 HD SLE\n\u003cbr\u003e2019 GMC Sierra 2500 HD SLT\n\u003cbr\u003e2019 GMC Sierra 3500 HD Base\n\u003cbr\u003e2019 GMC Sierra 3500 HD Denali\n\u003cbr\u003e2019 GMC Sierra 3500 HD SLE\n\u003cbr\u003e2019 GMC Sierra 3500 HD SLT\n\u003cbr\u003e2020 Chevrolet Silverado 2500 HD High Country\n\u003cbr\u003e2020 Chevrolet Silverado 2500 HD LT\n\u003cbr\u003e2020 Chevrolet Silverado 2500 HD LTZ\n\u003cbr\u003e2020 Chevrolet Silverado 2500 HD WT\n\u003cbr\u003e2020 Chevrolet Silverado 3500 HD High Country\n\u003cbr\u003e2020 Chevrolet Silverado 3500 HD LT\n\u003cbr\u003e2020 Chevrolet Silverado 3500 HD LTZ\n\u003cbr\u003e2020 Chevrolet Silverado 3500 HD WT\n\u003cbr\u003e2020 GMC Sierra 2500 HD AT4\n\u003cbr\u003e2020 GMC Sierra 2500 HD Base\n\u003cbr\u003e2020 GMC Sierra 2500 HD Denali\n\u003cbr\u003e2020 GMC Sierra 2500 HD SLE\n\u003cbr\u003e2020 GMC Sierra 2500 HD SLT\n\u003cbr\u003e2020 GMC Sierra 3500 HD AT4\n\u003cbr\u003e2020 GMC Sierra 3500 HD Base\n\u003cbr\u003e2020 GMC Sierra 3500 HD Denali\n\u003cbr\u003e2020 GMC Sierra 3500 HD SLE\n\u003cbr\u003e2020 GMC Sierra 3500 HD SLT\n\u003cbr\u003e2021 Chevrolet Silverado 2500 HD Custom\n\u003cbr\u003e2021 Chevrolet Silverado 2500 HD High Country\n\u003cbr\u003e2021 Chevrolet Silverado 2500 HD LT\n\u003cbr\u003e2021 Chevrolet Silverado 2500 HD LTZ\n\u003cbr\u003e2021 Chevrolet Silverado 2500 HD WT\n\u003cbr\u003e2021 Chevrolet Silverado 3500 HD High Country\n\u003cbr\u003e2021 Chevrolet Silverado 3500 HD LT\n\u003cbr\u003e2021 Chevrolet Silverado 3500 HD LTZ\n\u003cbr\u003e2021 Chevrolet Silverado 3500 HD WT\n\u003cbr\u003e2021 GMC Sierra 2500 HD AT4\n\u003cbr\u003e2021 GMC Sierra 2500 HD Base\n\u003cbr\u003e2021 GMC Sierra 2500 HD Denali\n\u003cbr\u003e2021 GMC Sierra 2500 HD SLE\n\u003cbr\u003e2021 GMC Sierra 2500 HD SLT\n\u003cbr\u003e2021 GMC Sierra 3500 HD AT4\n\u003cbr\u003e2021 GMC Sierra 3500 HD Base\n\u003cbr\u003e2021 GMC Sierra 3500 HD Denali\n\u003cbr\u003e2021 GMC Sierra 3500 HD SLE\n\u003cbr\u003e2021 GMC Sierra 3500 HD SLT\u003c\/p\u003e","brand":"Mishimoto","offers":[{"title":"Default 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