25982143 | Genuine GM® 6-Speed Transmission Control Module T14A, A40 for Silverado and Sierra

SKU: 25982143 MPN: 25982143

Shift with intelligence in your 2006–2008 Silverado or Sierra using the Genuine 6-Speed Transmission Module. Part number: 25982143. Brand: GM. Designed for 6.0L, 6.6L, and 8.1L engines to optimize driveline communication.

$1,039.00
No Core Charge
3 in stock

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Product Description

Product Name 6-Speed Transmission Control Module Product Name 6-Speed Transmission Control Module
Condition Remanufactured Condition Remanufactured
Brand GM® Brand GM®
Part Number 25982143 Part Number 25982143
Vehicle Compatibility
Chevrolet Silverado (2006-2008) Chevrolet Silverado (2006-2008)
GMC Sierra (2006-2008) GMC Sierra (2006-2008)
Engine Compatibility
Engine 8 Cyl 6.0L Engine 8 Cyl 6.0L
Engine 8 Cyl 6.6L Engine 8 Cyl 6.6L
Engine 8 Cyl 8.1L Engine 8 Cyl 8.1L
Module Compatibility
Model T14A, A40 Model T14A, A40
Common Diagnostic Trouble Codes
U0101 Lost communication with TCM U0101 Lost communication with TCM
U0100 Lost communication with ECM/PCM U0100 Lost communication with ECM/PCM
P2669 Computer circuit malfunction P2669 Computer circuit malfunction
P0700 Transmission Control System fault P0700 Transmission Control System fault
TCM not powering on Possible internal failure TCM not powering on Possible internal failure

Useful Information

Description and Purpose:

This remanufactured 6-Speed Transmission Control Module by GM, Part number: 25982143, is a genuine component for Chevrolet Silverado and GMC Sierra (2006–2008) with 8-cylinder engines. It precisely manages transmission operations, keeping gear shifts consistent and the drivetrain reliable.

Why Replacement is Important:

Faulty TCMs can lead to erratic shifting or transmission damage. Replacement maintains safe operation and protects your truck’s engine-transmission system.

Impact on Vehicle Performance:

A functioning module ensures smooth acceleration, accurate gear engagement, and optimal vehicle control under all driving conditions.

Manufacturer Information:

General Motors® builds trusted parts known for advanced engineering, supporting consistent power and dependable vehicle operation.

Tags & Category: Transmission Control Module, TCM, 6-Speed TCM, GM Transmission ECU, Chevrolet Silverado TCM, GMC Sierra TCM, 6.0L 6.6L 8.1L Engines, Automatic Transmission Control, OEM GM Transmission, Engine Management Module, 6-Speed Automatic, 8 Cylinder GM Trucks, Vehicle Control Module

Warranty:

Parts Finder Q offers a 365-days warranty for all types of parts in any condition. The warranty applies exclusively to purchases made directly through our website (partsfinderq.com). Please note that purchases made through third-party platforms like eBay or Amazon are not covered by this warranty.

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  • Icon Truck, Fast Delivery
    Free shipping over $199 Place an order today and receive it on Mar 6
  • Clock Icon
    Orders placed before 7-PM EST will ship same business day
  • Location icon, warehouse pickup point.
    Pickup available usually ready in 24 hours
  • Need it fast? We offer overnight shipping

    Contact us to check if overnight next-day delivery is available for your order - PN: 25982143