duramax-tuner-dt1150000008001-1
duramax tuner

Duramax Tuner Pre-Tuned Replacement A50/T14 TCM for 2011-2015 (LML) Allison Transmission

Thoroughbred Sku #: DUTDT1150000008001-CRE

Item Options:

Prop 65:
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
Shipping Restrictions:
This part is NOT available to ship to the state of California.


PAYMENT NOTE: If you choose Pay Core Later, from the Core option below, you will not be able to pay for this order using Affirm or PayPal

$1,185.00

free-shipping-no-handling
NOTE: After you order, one of our order specialists will call you and ask for your Vin # & Tire Size.

core learn more button I have read and I accept the terms and conditions.

Applications:

View All applications

VERIFY VEHICLE FIT

Product Details

Product Name: Duramax Tuner Pre-Tuned Replacement A50/T14 TCM for 2011-2015 (LML) Allison Transmission
Manufacturer: Duramax Tuner
Manufacturer Part #: DT1150000008001
Thoroughbred Diesel Part #: DUTDT1150000008001
Fitment Notes: 2011-2015 GM Duramax LML Allison Transmission

This brand-new OEM A50/T14 TCM comes pre-tuned with your choice of standard or elevated shift points to accommodate any setup or style of driving. Why waste time and money getting your stock TCM replaced by the dealer when we can provide you with the exact same part, pre-tuned with our performance-enhancing tuning, for less than the cost of getting one installed at the dealer? Don't just fix your 2011, 2012, 2013, 2014, or early 2015 Chevy Silverado/GMC Sierra LML 2500/3500's broken TCM, upgrade it too and save!

Your TCM will arrive pre-programmed for your VIN and includes our custom TCM Tuning.

Benefits of TCM tuning over stock include: 

  • Raised main-line pressure improves clutch holding capacity and improves transmission life (a DuramaxTuner Exclusive feature)
  • The refined shift schedule takes advantage of the wider Torque and Power curves provided by ECM tuning
  • Improved torque converter clutch engagement settings to allow lockup under heavy loads, planting the power to the ground and lowering transmission temperatures
  • Torque limitations adjusted to allow high RPM fueling in performance applications
  • Optimizes the performance of your aftermarket turbocharger
  • Keeps your truck in its power band when lugging up a grade
  • 2nd gear start in 4wd low range (can tap down to first)
  • Optional 2nd or 3rd Gear Start for competition applications
  • Further adjustments are available for customers with larger-than-stock turbochargers or significantly oversized tires 

TCM Tuning is especially important for trucks with:

  • ECM Tuning installed
  • Larger tires (35”+)
  • Modified or upgraded turbo(s)
  • Built transmissions
  • Any modification that impacts operating RPMs

Fitment:

Fits 2011, 2012, 2013, 2014, and early 2015 Chevrolet and GMC LML 2500HD and 3500HD trucks that include a (9, A, B, C, D, E, F) in the 10th digit of the vehicle identification number (VIN). This product is incompatible with c4500 and c5500 platforms.

**If your truck contains an F in the 10th digit of the vehicle identification number (VIN) please verify that your TCM matches the one pictured above by locating it on the driver's side of the fan shroud**

Duramax Tuner Features:

  • Provides the best possible drive-ability and shift quality
  • Gets more of the additional power that engine tuning can provide to your wheels
  • Ensures your engine is operating within its optimal rev range
  • Ability to improve your MPGs
  • Increases clutch holding strength and transmission longevity
  • Compatible with any aftermarket ECM tuning
  • Cheaper than a A50/T14 TCM replacement at the dealer
  • A50 TCMs are prone to failure
  • This product includes an OEM General Motors T14 TCM.
  • No visits to the dealer are required
  • 5-minute plug-and-play installation
  • For more information on Duramax Tuner call us at 1-859-737-4966

Reviews

  • Looking for a TCM for a 2013 GMC3500 6.6 with Allison t14. 24266710. Just want to make sure it isn’t back ordered before I order.

    Chris Johnson | 6/12/2023

    This item is on a national back order

  • Hi, I ordered the pre tuned tcm for my duramax in August. Do you guys have any information on when they are coming in? When I ordered it, I didn’t see they were on back order on the website but when I got the email after I purchased it said they were. I just want to know if there is any news because I’m dying for the part to come in, it’s been almost 4 months. Im definitely not happy and I know it’s not your guys fault but if I can’t get any information I am going to have to cancel my order.

    Cami | 11/25/2022

    No eta at this time. Please phone in an speak to a sales rep.

  • This shows it’s for the LMM. I have a 2007.5 LMM 3500. Will this work?

    Luke Bryan | 10/24/2022

    Yes, on back order at this time.