Pre-Tuned Replacement T87A TCM For 2017-2019 (L5P) Allison Transmission

Pre-Tuned Replacement T87A TCM For 2017-2019 (L5P) Allison Transmission

$775.00

Pre-Tuned Replacement T87A TCM for 2017-2019 (L5P) Allison Transmission – Restore Performance & Reliability
Upgrade your 2017-2019 Silverado or Sierra 2500/3500 HD equipped with a 6.6L Duramax engine by replacing the factory TCM with a pre-tuned solution designed for optimal performance. This brand-new T87A Transmission Control Module arrives pre-programmed for your VIN and includes custom TCM tuning to enhance shift quality, responsiveness, and reliability.

Eliminate Common TCM Issues: Fixes factory-related limp mode, PRNDL display loss, and check engine light errors.
Pre-Programmed for Your Vehicle: Arrives VIN-specific and ready for plug-and-play installation.
Enhanced Shift Performance: Custom TCM tuning optimizes transmission response and drivability.
Compatible with Allison 1000 Transmission: Designed specifically for 2017-2019 models with L5P Duramax engines.
Brand-New, Not Refurbished: Provides a reliable replacement for your factory TCM without remanufactured components.

Note: Ensure compatibility with your vehicle before installation. Proper calibration is essential for optimal performance.

$775.00

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Pre-Tuned Replacement T87A TCM for 2017-2019 (L5P) Allison Transmission

Why Choose the Pre-Tuned Replacement T87A TCM?

Optimize the performance of your 2017-2019 L5P Duramax with this Pre-Tuned Replacement T87A Transmission Control Module (TCM). The Allison 6-Speed transmission is highly regarded for its advanced electronic control, and upgrading the factory calibration enhances drivability—especially when paired with ECM tuning or performance modifications.

Key Benefits:

  • Improved Shift Quality – Experience quicker, smoother shifting for better response on the road.
  • Optimized Performance – Enhances transmission operation to match ECM tuning or modifications.
  • Torque Converter Lockup Strategy – Ensures optimal power transfer for towing and performance applications.
  • Increased Line Pressure – Boosts clutch holding capacity, preventing slipping in high-power scenarios.
  • Prevents Short-Shifting – Keeps your engine in the ideal RPM range for maximum efficiency.

Available Tuning Options:

Smooth Shift Points (Mild Tuning) – Ideal For:

  • Drivers who prefer a shift schedule similar to stock.
  • Near-stock trucks or vehicles with minimal modifications.
  • Trucks with a box tuner installed.
  • Daily commuters or general-purpose driving.

Aggressive/Elevated Shift Points – Ideal For:

  • Vehicles with an upgraded turbocharger.
  • Trucks running 35-inch or larger tires.
  • Drivers who prefer higher RPM operation and longer gear holds.
  • Trucks with custom engine tuning.

Compatibility & Specifications:

  • Fits: 2017-2019 GM 6-Speed Allison Transmission (L5P Duramax).
  • Pre-Tuned for optimal performance, ready for plug-and-play installation.
  • Developed to integrate seamlessly with existing ECM tuning or stock calibrations.

Ideal For:

  • Trucks with ECM tuning, box tuners, or throttle boosters.
  • Vehicles with larger tires (35”+) or modified turbochargers.
  • Trucks equipped with a built transmission.
  • Performance applications that demand precise shifting and maximal power delivery.

Towing & Performance Benefits:

  • Maintains an optimized torque curve, ensuring efficient fuel use under load.
  • Keeps the truck in its power band when towing, preventing unnecessary downshifts.
  • Faster, more responsive shifts minimize delay between gears for smoother acceleration.
  • Helps you maximize aftermarket transmission and engine modifications.

Important Notes:

  • Images shown are for illustration purposes only; actual product may vary.
  • California Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer and reproductive harm. Visit P65Warnings.ca.gov for more information.
Upgrade your Allison transmission with a Pre-Tuned Replacement T87A TCM from Motorsports Arsenal and enhance the performance, drivability, and reliability of your 2017-2019 L5P Duramax today.

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