2017 2018 2019 2020 CHEVY IMPALA 3.6L FWD - AUTOMATIC TRANSMISSION70,405 MILESTested30 Day Guarantee
The 2019 Chevrolet Impala 3.6L FWD uses GM’s 6T70 (M7W / M7U) 6-speed automatic transmission.
Because GM altered mounting brackets, harness connectors, and TEHCM internal calibrations across model years, transmission interchange for this specific generation is broken down into Direct Bolt-In Interchange vs. Broader Transmission Family Applications.
1. Direct Plug-and-Play Fitment (Exact Interchange)
A complete transmission assembly pulled directly from a 2019 Impala 3.6L will interchange directly without modifications with:
2. Same Transmission Family (6T70 6-Speed FWD - 3.6L V6)
The 6T70 / 6T75 6-speed transmission family was used across multiple GM 3.6L FWD vehicles. While physical architecture is shared, swapping an assembly between different models (e.g., swapping a Buick LaCrosse trans into a late Impala) may require swapping the outer shift linkage brackets, torque converter, or performing a TEHCM/TCM reprogram/swap.
Chevrolet
Impala (10th Gen, 3.6L): 2014–2020
Impala Limited (9th Gen, 3.6L): 2012–2016
Malibu (3.6L V6): 2008–2012
Equinox (3.6L V6 FWD): 2008–2017
Traverse (3.6L V6 FWD): 2009–2017
Buick
LaCrosse (3.6L V6 FWD): 2010–2019
Enclave (3.6L V6 FWD): 2008–2017
Regal (2.0T / 3.6L FWD): 2011–2017
Cadillac
GMC
Important Notes for Salvage / Swapping
Option Codes (RPO): Check the trunk sticker/service tag for Option Code M7W or M7U to verify exact ratio configuration.
TEHCM / Valve Body Coding: If installing a used 6T70 unit into another vehicle, the internal TEHCM (Transmission Electro-Hydraulic Control Module) must either be programmed using GM SPS/SPS2 or swapped over from the original donor transmission to match the vehicle\'s VIN and avoid anti-theft immobilizer trip or shift faults.
