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        HP Tuner - TCM - GM-T87A / 2020+ Duramax

        SKU: TCM-00-T87A-1-GQTN

        Unlock the Full Potential of Your 2020+ Duramax with the TCM-00-T87A-1

        An unlocked TCM-00-T87A-1 Transmission Control Module for 2020+ Duramax trucks delivers better power, durability, and performance, perfect for towing, hauling, and everyday driving.

        Key Benefits:

        • Improved Power Delivery: Access more horsepower and torque for a stronger driving experience.

        • Increased Clutch Holding Capacity: Handle higher loads and power without sacrificing reliability.

        • Optimized Shift Timing: Enhance acceleration, shift response, and overall driveability.

        • Enhanced Transmission Durability: Reduce stress on components and extend transmission life.

        • Custom Tuning Flexibility: Tailor the transmission to your specific driving needs.

        • Better Engine RPM Control: Keep the engine operating in its most efficient powerband.

        Boost your 2020+ Duramax’s performance and durability with a fully unlocked TCM!

        0.0
        HP Tuners
        Vehicle Specific
        Check if this part fits your vehicle.
        • Brand: HP Tuners
        • $559.99

        Only 1 left in stock

        Unlock Maximum Performance with the TCM-00-T87A-1 for 2020+ Duramax Trucks

        Take full control of your 2020+ Duramax transmission with the HP Tuners TCM-00-T87A-1 Unlocked Transmission Control Module. Designed to unlock the true potential of your truck’s drivetrain, this upgrade offers a powerful combination of improved power delivery, optimized shift timing, increased clutch holding capacity, and greater transmission durability — perfect for towing, hauling, or high-performance driving.

        By unlocking your TCM, you gain the ability to fully customize transmission settings through HP Tuners’ VCM Suite software, allowing you to fine-tune your shift points, firmness, and power output to match your exact driving style and performance needs. Whether you're pushing your truck to new performance levels or simply want a smoother, more refined ride, the TCM-00-T87A-1 delivers.

        Key Features and Benefits:

        • Enhanced Power Delivery: Unlock more horsepower and torque for stronger, more responsive driving.

        • Increased Clutch Holding Capacity: Improved pressure settings help the transmission manage higher torque loads, extending clutch life.

        • Optimized Shift Timing and Power Output: Achieve faster, smoother shifts for better acceleration and a refined driving experience.

        • Greater Transmission Durability: Reducing transmission stress helps extend the life of internal components.

        • Custom Tuning Flexibility: Fine-tune shift patterns, RPM ranges, and power management for a truly personalized setup.

        • Better Engine RPM Control: Keep your engine in its optimal power band, improving efficiency and performance.

        Applications:
        Specifically built for 2020+ Duramax trucks equipped with 10-speed automatic transmissions, the TCM-00-T87A-1 is ideal for drivers who demand better control, more power, and higher performance out of their vehicles.

        Why Upgrade?
        If you haul heavy loads, tow frequently, or simply want the best performance from your Duramax truck, an unlocked TCM is an essential upgrade. Maximize drivability, extend transmission life, and get the most out of every horsepower with the HP Tuners TCM-00-T87A-1.

        Unlock your 2020+ Duramax’s full potential today with the TCM-00-T87A-1 – the key to a stronger, faster, and more capable transmission!

          • SKU
            TCM-00-T87A-1-GQTN
          • Weight
            3 lbs
          • Barcode
            00858637006458
          • Dimensions (L x W x H)
            3 x 8 x 10 in
          • Manufacturer Part #
            TCM-00-T87A-1
        • Prop 65 (C, R or CR)
          CR
        • Prop 65 Yes/No
          Yes
        • Brand
          HP Tuners
        • Extended information
          • Emissions
            Emission verification to be determined in ACES, vehicle application data.
          • Life Cycle Status
            Available To Order
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        Shipping Times

        Most customers will see their parts within 3-5 business days. We will primarily ship with Purolator ground & DHL Express to ensure the fastest shipping possible.

        Please Note: These are only estimates and shipping time may vary depending on your location, out of country and rural locations expect longer wait times.

        Where Do We Ship 

        We will ship our products within Canada and the United States.

        Please Note: There are limitations what can be shipped to the United States.

        Damaged Shipments

        We provide the option to purchase insurance as we are not responsible for any damage while with a courier, we don’t often see issues, but it does happen. If you purchased insurance we will put in a claim, if no insurance was purchased there will be no refunds or exchanges.

        We accept the following payment methods:


        Return Policy

        It happens sometimes we would like to return it. Here are our return rules:

        • Prior to any return you must contact us and get an approval for a  RMA number
        • Product must be unopened and have no damage. 
        • You must pay for the shipping back, please insure so if anything happens you can make a claim, we are not responsible for damage during shipping and is the sole responsibility of the customer.
        • Regular products are subject to a 5% Restocking fee.
        • Items over 50 lbs. or special orders will be subject to a 20% Restocking fee.
        • Electronics & Tuning is a final sale and cannot be returned. 
        • Fitment Type
          Vehicle Specific
        YearMakeModelNotes
        2017BuickLaCrosse; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2017CadillacXT5; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2017CadillacCT6; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2017CadillacEscalade; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2017CadillacEscalade ESV; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2017CadillacATS; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2017CadillacCTS; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2017ChevroletCamaro; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2017ChevroletCorvette; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2017ChevroletExpress 2500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2017ChevroletExpress 3500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2017ChevroletColorado; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2017ChevroletSilverado 1500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2017GMCSavana 2500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2017GMCSavana 3500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2017GMCCanyon; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2017GMCYukon; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2017GMCYukon XL; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2017GMCSierra 1500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2018ChevroletCamaro; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2018ChevroletCorvette; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2018ChevroletColorado; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2018ChevroletTahoe; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2018ChevroletExpress 3500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2018ChevroletExpress 2500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2018ChevroletSilverado 1500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2018CadillacEscalade; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2018CadillacEscalade ESV; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2018CadillacXT5; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2018CadillacCT6; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2018CadillacCTS; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2018CadillacATS; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2018GMCCanyon; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2018GMCYukon; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2018GMCYukon XL; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2018GMCSavana 2500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2018GMCSavana 3500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2018GMCSierra 1500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2018BuickRegal TourX; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2018BuickRegal Sportback; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2019ChevroletSilverado 1500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2019ChevroletSuburban; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2019ChevroletColorado; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2019ChevroletCamaro; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2019ChevroletTahoe; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2019ChevroletCorvette; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2019ChevroletExpress 3500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2019ChevroletExpress 2500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2019GMCYukon; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2019GMCYukon XL; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2019GMCCanyon; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2019GMCSierra 1500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2019GMCSavana 3500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2019GMCSavana 2500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2019CadillacXT5; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2019CadillacEscalade ESV; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2019CadillacEscalade; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2019CadillacCT6; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2019CadillacATS; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2019CadillacCTS; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2019BuickRegal TourX; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2019BuickRegal Sportback; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2020GMCCanyon; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2020GMCSierra 1500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2020GMCSavana 2500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2020GMCSavana 3500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2020GMCSierra 3500 HD; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2020GMCSierra 2500 HD; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2020GMCYukon XL; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2020GMCYukon; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2020ChevroletSilverado 1500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2020ChevroletCamaro; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2020ChevroletColorado; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2020ChevroletExpress 3500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2020ChevroletExpress 2500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2020ChevroletSilverado 3500 HD; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2020ChevroletSilverado 2500 HD; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2020ChevroletSuburban; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2020ChevroletTahoe; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2020BuickRegal Sportback; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2020BuickRegal TourX; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2020CadillacCT5; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2020CadillacEscalade; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2020CadillacEscalade ESV; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2020CadillacCT6; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2020CadillacCT4; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2021ChevroletTahoe; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2021ChevroletSuburban; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2021ChevroletColorado; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2021ChevroletCamaro; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2021GMCYukon XL; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2021GMCYukon; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2021GMCCanyon; TransmissionControlType: Automatic; TransmissionNumSpeeds: 8;
        2021GMCSierra 3500 HD; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2021GMCSierra 2500 HD; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2021GMCSierra 1500; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2021GMCSavana 3500
        2021CadillacEscalade ESV; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2021CadillacEscalade; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        2021CadillacCT5; TransmissionControlType: Automatic; TransmissionNumSpeeds: 10;
        There are more vehicles this part is compatible with. Check if it fits your vehicle.