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2009-2015 Allison A50 TCM

Pricing: $675.00

Customize Your Item

 * required
- Custom Tuned or Factory Tuned? -
 * required


Our brand new Pre-Programmed TCM comes with your choice of either OEM factory calibrations or our Custom EFILive calibrations. 

Benefits of our Custom Tuned 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.  

No core required. 

Lifetime Warranty


The 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 cost upwards of $1000 and can take a couple days 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.


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


Q: Does this TCM require me to get it programmed at a dealership?
A: No. Our TCM comes pre-programmed. No dealer visit needed.

Q: How long does it take to install?
A: The TCM can be installed in under 5 minutes with a small flat screw driver.

Q: Do I need to unhook my batteries to install?
A: No. The TCM can be swapped with batteries hooked up.

Q: I have a tuner on my truck. Which TCM should I order?
A: Whether your truck is bone stock or tuned we recommend the custom tuned version. It’s going to improve the way your truck performs and responds.

Q: Does the tuned TCM help with fuel economy?
A: We don’t make any claims to fuel economy gains, but some customers have reported an increase. This would be due to the more efficient power transfer.

Q: What is the warranty?
A: The purchaser receives a Lifetime warranty on the TCM against defects.


Shipping Information

  • Item Requires Shipping
  • 2.0 lbs.
  • W9.0000” x H8.0000” x L4.0000”

Customer Reviews

Comment Total Reviews (1)

2014 duramax Tcm
  • Currently 5/5 Stars

Reviewed by: Thomas03/12/2020 12:03AM

Product ownership: Less than 1 week

Purchased from: Dan's Diesel Performance

Highly recommended! Placed my order on sunday night and it was shipped at 10 a.m. monday showed up at my house on Wednesday. Install was about 2 minutes and my truck is shifting great. Thanks Dan's Diesel Performance!

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