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.