24259874 | Genuine Allison® 6-Speed TCM Transmission Control Module T14, A50

SKU: 24259874 MPN: 24259874

Let your transmission think faster with the Genuine Allison 6-Speed TCM designed for Chevrolet Silverado and GMC Sierra (2009–2015). Part number: 24259874. Engineered for 6.0L and 6.6L engines to ensure adaptive shift performance.

$959.00
No Core Charge
3 in stock

Need it fast? We offer overnight shipping

Contact us to check if overnight next-day delivery is available for your order - PN: 24259874

  • Free shipping over $199 Order today — get it
  • Clock Icon
    Orders before 7 PM EST ship same business day
  • Location icon, warehouse pickup point.
    Pickup available. Usually ready in 24 hours

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 24259874 Part Number 24259874
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:

This remanufactured 6-Speed (TCM) Transmission Control Module, genuine Allison part with Part number: 24259874, is made for 8-cylinder Chevrolet Silverado and GMC Sierra (2009–2015). Compatible with T14 and A50 automatic transmissions, it regulates shifting and optimizes engine-transmission communication to maintain consistent performance.

Why Replacement is Important:

Avoids transmission errors and irregular shifts, extending overall component life. Keeps the drivetrain operating reliably.

Impact on Vehicle Performance:

Ensures smooth operation, precise gear changes, and consistent drivability.

Manufacturer Information:

Allison® is committed to producing components that enhance vehicle performance and maintain consistent efficiency.

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.

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
  • 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: 24259874