ATS Performance A40/A50 To T87 TCM Upgrade 11-Early 15 GM 6.6L Duramax
Found on the current 2023 Duramax, the T87a TCM has a much faster processor than the A50 and that equates to better shift quality, faster shifting and overall improved drivability. This is a direct replacement upgrade that requires no permanent modifications and features a plug and play OEM quality harness and module. Designed for stock or modified trucks, this T87 TCM comes in an assembly including ATS's Translator module that also has their Co-Pilot transmission functions built in.
Product Information
Product Information
Shipping & Returns
Shipping & Returns



ATS Performance A40/A50 To T87 TCM Upgrade 11-Early 15 GM 6.6L Duramax
ATS Performance A40/A50 To T87 TCM Upgrade 11-Early 15 GM 6.6L Duramax
Found on the current 2023 Duramax, the T87a TCM has a much faster processor than the A50 and that equates to better shift quality, faster shifting and overall improved drivability. This is a direct replacement upgrade that requires no permanent modifications and features a plug and play OEM quality harness and module. Designed for stock or modified trucks, this T87 TCM comes in an assembly including ATS's Translator module that also has their Co-Pilot transmission functions built in.
Original: $1,994.99
-70%$1,994.99
$598.50Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Found on the current 2023 Duramax, the T87a TCM has a much faster processor than the A50 and that equates to better shift quality, faster shifting and overall improved drivability. This is a direct replacement upgrade that requires no permanent modifications and features a plug and play OEM quality harness and module. Designed for stock or modified trucks, this T87 TCM comes in an assembly including ATS's Translator module that also has their Co-Pilot transmission functions built in.






















