ATS TCM Upgrade (4WD) A50 to T87, 2011-2014 GM 6.6L Duramax - 601-940-4368

*FINAL SALE - NO RETURNS*

The ATS A50 to T87 TCM Upgrade (part #601-940-4368) replaces the failure-prone A50 transmission control module found in 2011–2014 GM 6.6L Duramax trucks with a modern T87A transmission control module. Designed as a plug-and-play solution, this upgrade includes ATS's proprietary Translator® module with integrated Co-Pilot transmission control technology to improve shift quality, increase line pressure, and enhance transmission durability for both stock and modified trucks.

Key Features

• Direct replacement for the factory A50 TCM on 2011–2014 GM Duramax applications
• Includes unlocked T87A TCM with custom ATS calibration pre-installed
• Translator® module with integrated Co-Pilot transmission pressure enhancements
• Faster T87A processor delivers quicker shifts and improved drivability
• Controls and increases transmission line pressure for improved clutch holding capacity
• Works with both stock and performance-modified trucks
• Plug-and-play installation with OEM-quality wiring harness and mounting bracket

Compatibility & Installation Notes

• Fits 2011–2014 Chevrolet Silverado 2500 HD and 3500 HD equipped with the Allison 1000 6-speed automatic transmission and 6.6L Duramax diesel
• Fits 2011–2014 GMC Sierra 2500 HD and 3500 HD equipped with the Allison 1000 6-speed automatic transmission and 6.6L Duramax diesel
• Designed for 4WD applications
• Replaces the factory A50 transmission control module
• Professional installation is recommended

What's Included

• Unlocked T87A transmission control module with ATS performance calibration
• ATS Translator® module with integrated Co-Pilot functionality
• Mounting bracket
• Plug-and-play wiring harness

Prop 65 Warning

WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information, visit www.P65Warnings.ca.gov.