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    • Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit - MMTC-L5P-TBV

    MSRP: $160.81
    $128.95
    (You save $31.86 )
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    SKU:
    MISMMTC-L5P-TBV
    UPC:
    840197710616
    Availability:
    Regularly stocked product
    Width:
    7.00 (cm)
    Height:
    2.00 (cm)
    Depth:
    8.00 (cm)
    Category:
    Cooling>Transmission Coolers
    MPN:
    MMTC-L5P-TBV

    Product Description

    The Allison transmission is the backbone of your L5P Duramax. It's responsible for transmitting large quantities of torque from your V8 diesel powerplant. This torque generates a lot of heat, and if that heat isn't dissipated, it can destroy your transmission. The transmission cooler does a good job of keeping trans fluid temperatures in check, but only if the fluid can reach it. The stock cooling system of the Allison 1000 transmission utilizes an in-line thermal bypass valve that controls fluid flow to the transmission cooler. The purpose of this valve is to prevent transmission fluid from flowing to the cooler until it reaches operating temperature. The thermostat inside this valve is prone to failure, however, and when that happens, the fluid never flows to the cooler, and the transmission can overheat. That's why Mishimoto has developed a thermal bypass valve upgrade for your 2017+ Chevrolet/GMC 6.6L Duramax. Our CNC-machined aluminum thermal bypass valve not only looks better than the stock unit, but it performs better too. This Mishimoto thermal bypass valve kit includes a fully serviceable thermostat for fast warm-up in cold climates. This kit also includes a thermostat bypass that can be installed to provide constant cooling in warm climates or for use in extreme driving/towing conditions. The Mishimoto thermal bypass valve features strategically machined internal passages, providing improved flow over the stock valve for more effective cooling. In addition, cooling fins machined into the valve body add even more heat dissipation. This 2017+ Chevrolet/GMC 6.6L Duramax L5P Thermal Bypass Valve Kit is built to last a lifetime with a durable black anodized finish and our Mishimoto Lifetime Warranty.

    This Part Fits:

    YearMakeModelSubmodel
    2021ChevroletSilverado 2500 HDCustom
    2017-2021ChevroletSilverado 2500 HDHigh Country
    2017-2021ChevroletSilverado 2500 HDLT
    2017-2021ChevroletSilverado 2500 HDLTZ
    2017-2021ChevroletSilverado 2500 HDWT
    2017-2021ChevroletSilverado 3500 HDHigh Country
    2017-2021ChevroletSilverado 3500 HDLT
    2017-2021ChevroletSilverado 3500 HDLTZ
    2017-2021ChevroletSilverado 3500 HDWT
    2020-2021GMCSierra 2500 HDAT4
    2017-2021GMCSierra 2500 HDBase
    2017-2021GMCSierra 2500 HDDenali
    2017-2021GMCSierra 2500 HDSLE
    2017-2021GMCSierra 2500 HDSLT
    2020-2021GMCSierra 3500 HDAT4
    2017-2021GMCSierra 3500 HDBase
    2017-2021GMCSierra 3500 HDDenali
    2017-2021GMCSierra 3500 HDSLE
    2017-2021GMCSierra 3500 HDSLT

    Product Videos

    Custom Field

    Category Cooling>Transmission Coolers
    MPN MMTC-L5P-TBV

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