24256670 | Genuine Allison® 6-Speed TCM Transmission Control Module T14, A50

SKU: 24256670 MPN: 24256670

Experience precise electronic shift performance with the Genuine Allison 6-Speed Transmission Module on 2009–2015 Silverado and Sierra. Part number: 24256670. Tailored for 6.0L and 6.6L 8-cylinder engines for reliable driveline control.

$959.00
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 Allison® Brand Allison®
Part Number 24256670 Part Number 24256670
Vehicle Compatibility
Chevrolet Silverado (2009-2015) Chevrolet Silverado (2009-2015)
GMC Sierra (2009-2015) GMC Sierra (2009-2015)
Engine Compatibility
Engine 8 Cyl 6.0L Engine 8 Cyl 6.0L
Engine 8 Cyl 6.6L Engine 8 Cyl 6.6L
Module Compatibility
Model T14, A50 Model T14, A50
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 / Actuator Supply Voltage "B" Circuit Low P2669 Computer circuit malfunction / Actuator Supply Voltage "B" Circuit Low
P0700 Transmission Control System fault P0700 Transmission Control System fault
P0827 Up and Down Shift Switch Circuit Low P0827 Up and Down Shift Switch Circuit Low
TCM Not powering on / No communication TCM Not powering on / No communication

Useful Information

Description and Purpose:

Identified by Part number: 24256670, this remanufactured Genuine Allison 6-Speed Transmission Control Module, is suitable for 8-cylinder Chevrolet Silverado and GMC Sierra (2009–2015). Designed for T14 and A50 transmissions, it regulates gear changes with precision, ensuring seamless coordination between engine output and transmission input.

Why Replacement is Important:

Faulty TCMs can cause rough or delayed shifts and reduce transmission lifespan. Replacing it safeguards driveline integrity.

Impact on Vehicle Performance:

Maintains smooth shifts, enhances drivability, and ensures reliable handling under load.

Manufacturer Information:

Allison® delivers advanced automotive engineering with a focus on quality, safety, and performance that drivers can rely on.

Tags & Category: Transmission Control Module, 6-Speed TCM, GM T14 A50, Automatic Transmission Module, Powertrain Control Unit, 6L90 TCM, Chevrolet Silverado Transmission Module, GMC Sierra Transmission Controller, OEM GM TCM, Shift Control Unit, Electronic Transmission ECU

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: 24256670