DDP 2009-2015 Allison T14 / A50 TCM - DDP-A50

Our brand new Pre-Programmed T14 / A50 TCM comes with your choice of either OEM factory calibrations or our Enhanced Calibrations. 

Benefits of our Enhanced TCM include:

• Improved throttle response.
• Revised shift strategies for better shift rpm and quality.
• Improved Torque converter lock-up.
• Increase MPGs.
• Extend transmission life.
• Works with factory or aftermarket ECM programming.  

This plug and play TCM is delivered right to your door and takes roughly 5 minutes to install.

No dealer visit.  

Limited Lifetime Warranty.

Fits Chevrolet and GMC 2500HD and 3500HD Pickup and Cab&Chassis trucks.  10th digit of VIN being a 9, A, B, C, D, E, F.  Trucks with 10th digit being a F please visually inspect your TCM to see that it matches the one in the picture.  TCM is located on the fan shroud by the drivers side battery.  The late 2015s came with the T87 TCM.

The T14 / A50 Transmission Control Module found in the 2009-2015 2500/3500 Duramax is prone to failure. The internal circuit board fails and is not serviceable.  When this failure occurs you may observe messages such as Range Shift Inhibited, Service Brake System, Service stabilatrak, or might experience loss of gear shift indicator on dash, slamming into Drive or Reverse, and DTC U0101 for loss of communication with TCM.

 This repair at a dealership can be costly and can take weeks to get repaired.  Our TCM will have you back on the road quickly while saving you money.  Plus you'll receive a much better warranty.  

Will Not Work in 4500 or 5500 trucks.  The Medium Duty modules must be purchased from a Allison Dealer.

Shipping information

Cutoff time for same day shipping is 3pm Central Time.  If ordering Next Day Air be advised that NDA does not deliver on Saturday.  For Saturday delivery or if you have any questions please give us a call.  815-977-5865

Click here to watch our TCM Video