Additional Images

2006-2008 Allison T14A / A40 TCM

DDP-A40
Brand new plug & play T14A / A40 TCM for the 2006-2008 6.6L Chevrolet/GMC 2500HD/3500.
Was: $1,295.00
Sale: $1,095.00
Save: 15%
Save: $200.00
5 5 4

Customize Your Item

 * required
- Enhanced or Factory Calibration? -
 * required
Qty:

Description

 

Our Brand New T14A / A40 Pre-Programmed TCM comes with your choice of either OEM factory calibration or our Enhanced calibration. 

 

Benefits of our Enhanced Calibration 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 is a plug and play TCM and is delivered right to your door taking 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 6, 7 or 8. 

 

The T14A / A40 Transmission Control Module found in the 2006-2008 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.

 

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

FAQ's

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 two year warranty on the TCM against defects.

Q: Can I return the TCM if it doesn't fix my trucks problem?
A: No. Once the TCM is installed it can not be returned. We recommend proper diagnosis before placing your order. We are here to help if you have any questions.

Shipping Information

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

Customer Reviews

Comment Total Reviews (4)

New trans and tcm
  • Currently 5/5 Stars

Reviewed by:

Product ownership: Less than 3 months

Purchased from: Dan's Diesel Performance

Comments:
I bought the dominator trans and tcm and I couldn't be happier awesome price and performance. Costumer service was great

James Williams
  • Currently 5/5 Stars

Reviewed by:

Product ownership: Less than 1 year

Purchased from: Dan's Diesel Performance

Comments:
Awesome product and support. It was much harder to diagnose the problem of the failed OEM unit than it was to replace it. Watch the video and in less time it takes to watch it you’ve replaced it!

Replacement TCM
  • Currently 5/5 Stars

Reviewed by:

Product ownership: Less than 1 month

Purchased from: Dan's Diesel Performance

Comments:
I ordered a replaement TCM for my 2013, overnight. Received the next morning and back on the road in less than 10 minutes.

Good TCM tune is the salt and lime for a good ECM tune.
  • Currently 5/5 Stars

Reviewed by:

Product ownership: Less than 1 year

Purchased from: Dan's Diesel Performance

Comments:
My 06 TCM 250K still working smooth and good but just to mjch slush boxxy. And my tunes were not what they could be. DAN's tune really help the truck be more of a kids truck.????????????
My friend has this TCM in his LBZ and I was like "WHAT" me need some of that.lol
Customer service and knowledge is Top Shelf ????.

You must login to post a review.