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6-Speed Automatic Transmission Assembly for 2017-2019 Chevrolet & GMC

Out of Stock
Price today
$4,194.00
$700 core refund
YOUR NET COST
$3,494.00
after returning your old part
✓ Prepaid core return label

Product Notes Read before buying

Odometer 120,700 miles 🛡 120-day warranty included
This is a used part. It is for vehicles with a 6.0L engine and an automatic transmission. This is a 6-speed automatic transmission (code 6L90, option code MYD).

This is a 6-speed automatic transmission for rear-wheel drive (RWD/4x2) vehicles only. For Chevrolet Express and GMC Savana vans, this part fits both 6.0L (2017-2019) and 4.8L (2017 only) engines. For Chevrolet Silverado and GMC Sierra pickup trucks, this part fits 6.0L engine models only.
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Vehicle Fitment Guide

This part fits the following vehicles:

Chevrolet 6 models(tapclick to expand)(tapclick to hide)
Express 2500 2017-2019 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Base Extended Cargo Van 2017 V8 4.8L FLEX RWD | Automatic
Base Standard Cargo Van 2017 V8 4.8L FLEX RWD | Automatic
Base Extended Cargo Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
Base Standard Cargo Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
LS Standard Passenger Van 2017 V8 4.8L FLEX RWD | Automatic
LS Standard Passenger Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
LS Standard Passenger Van 2017 - 2019 V8 6.0L RWD | Automatic
LT Standard Passenger Van 2017 V8 4.8L FLEX RWD | Automatic
LT Standard Passenger Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
LT Standard Passenger Van 2017 - 2019 V8 6.0L RWD | Automatic
Base Extended Cargo Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
Base Extended Cargo Van 2018 - 2019 V8 6.0L RWD | Automatic
Base Standard Cargo Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
Base Standard Cargo Van 2018 - 2019 V8 6.0L RWD | Automatic
LS Standard Passenger Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
LT Standard Passenger Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
Applies to every configuration above: Hollander: EXPRESS 2500 VAN 17 (AT), 4.8L | EXPRESS 2500 VAN 17-19 (AT), 6.0L; drive_type: include RWD; engine_size: include 6.0L; engine_size: include 4.8L; transmission: include Automatic; transmission_speeds: include 6 [inferred]
Express 3500 2017-2019 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Base Cutaway Van 2017 V8 4.8L FLEX RWD | Automatic
Base Extended Cargo Van 2017 V8 4.8L FLEX RWD | Automatic
Base Standard Cargo Van 2017 V8 4.8L FLEX RWD | Automatic
Base Cutaway Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
Base Cutaway Van 2017 - 2019 V8 6.0L RWD | Automatic
Base Extended Cargo Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
Base Extended Cargo Van 2017 - 2019 V8 6.0L RWD | Automatic
Base Standard Cargo Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
Base Standard Cargo Van 2017 - 2019 V8 6.0L RWD | Automatic
LS Extended Passenger Van 2017 V8 4.8L FLEX RWD | Automatic
LS Standard Passenger Van 2017 V8 4.8L FLEX RWD | Automatic
LS Extended Passenger Van 2017 - 2019 V8 6.0L RWD | Automatic
LS Extended Passenger Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
LS Standard Passenger Van 2017 - 2019 V8 6.0L RWD | Automatic
LS Standard Passenger Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
LT Extended Passenger Van 2017 V8 4.8L FLEX RWD | Automatic
LT Standard Passenger Van 2017 V8 4.8L FLEX RWD | Automatic
LT Extended Passenger Van 2017 - 2019 V8 6.0L RWD | Automatic
LT Extended Passenger Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
LT Standard Passenger Van 2017 - 2019 V8 6.0L RWD | Automatic
LT Standard Passenger Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
Base Cutaway Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
Base Extended Cargo Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
Base Standard Cargo Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
LS Extended Passenger Van 2018 V8 6.0L CNG RWD | Automatic
LS Extended Passenger Van 2018 V8 6.0L FLEX RWD | Automatic
LS Extended Passenger Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
LS Extended Passenger Van 2018 V8 6.0L RWD | Automatic
LS Standard Passenger Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
LT Extended Passenger Van 2018 V8 6.0L RWD | Automatic
LT Extended Passenger Van 2018 V8 6.0L FLEX RWD | Automatic
LT Extended Passenger Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
LT Extended Passenger Van 2018 V8 6.0L CNG RWD | Automatic
LT Standard Passenger Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
LS Extended Cargo Van 2019 V8 6.0L FLEX RWD | Automatic
LS Extended Cargo Van 2019 V8 6.0L CNG RWD | Automatic
LS Extended Cargo Van 2019 V8 6.0L RWD | Automatic
LT Extended Cargo Van 2019 V8 6.0L RWD | Automatic
LT Extended Cargo Van 2019 V8 6.0L FLEX RWD | Automatic
LT Extended Cargo Van 2019 V8 6.0L CNG RWD | Automatic
Applies to every configuration above: Hollander: EXPRESS 3500 VAN 17 (AT), 4.8L | EXPRESS 3500 VAN 17-19 (AT), 6.0L; drive_type: include RWD; engine_size: include 6.0L; engine_size: include 4.8L; transmission: include Automatic; transmission_speeds: include 6 [inferred]
Silverado 2500 2017-2019 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL
Body Style Years Engine Attributes
2017 - 2019
Silverado 2500 HD 2017-2019 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
High Country Crew Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
High Country Crew Cab Pickup 2017 - 2019 V8 6.0L RWD | Automatic
LT Crew Cab Pickup 2017 - 2019 V8 6.0L RWD | Automatic
LT Crew Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
LT Extended Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
LT Extended Cab Pickup 2017 - 2019 V8 6.0L RWD | Automatic
LT Standard Cab Pickup 2017 - 2018 V8 6.0L FLEX RWD | Automatic
LT Standard Cab Pickup 2017 - 2018 V8 6.0L RWD | Automatic
LTZ Crew Cab Pickup 2017 - 2019 V8 6.0L RWD | Automatic
LTZ Crew Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
LTZ Extended Cab Pickup 2017 - 2018 V8 6.0L RWD | Automatic
LTZ Extended Cab Pickup 2017 - 2018 V8 6.0L FLEX RWD | Automatic
WT Crew Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
WT Crew Cab Pickup 2017 - 2019 V8 6.0L RWD | Automatic
WT Extended Cab Pickup 2017 - 2019 V8 6.0L RWD | Automatic
WT Extended Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
WT Standard Cab Pickup 2017 - 2019 V8 6.0L RWD | Automatic
WT Standard Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
LT Crew Cab Pickup 2018 - 2019 V8 6.0L CNG RWD | Automatic
LT Extended Cab Pickup 2018 - 2019 V8 6.0L CNG RWD | Automatic
LT Standard Cab Pickup 2018 V8 6.0L CNG RWD | Automatic
LTZ Crew Cab Pickup 2018 - 2019 V8 6.0L CNG RWD | Automatic
LTZ Extended Cab Pickup 2018 V8 6.0L CNG RWD | Automatic
WT Crew Cab Pickup 2018 - 2019 V8 6.0L CNG RWD | Automatic
WT Extended Cab Pickup 2018 - 2019 V8 6.0L CNG RWD | Automatic
WT Standard Cab Pickup 2018 - 2019 V8 6.0L CNG RWD | Automatic
Applies to every configuration above: Hollander: SILVERADO 2500 PICKUP 17-19 (AT), 6.0L, 4x2 | SILVERADO 3500 PICKUP 17-19 (AT), 6.0L, 4x2; drive_type: include RWD; engine_size: include 6.0L; engine_size: include 6.0L; transmission: include Automatic; transmission_speeds: include 6 [inferred]
Silverado 3500 2017-2019 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
2017 - 2019
Silverado 3500 HD 2017-2019 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
High Country Crew Cab Pickup 2017 - 2019 V8 6.0L FLEX -
High Country Crew Cab Pickup 2017 - 2019 V8 6.0L -
LT Cab & Chassis 2017 - 2019 V8 6.0L FLEX -
LT Cab & Chassis 2017 - 2019 V8 6.0L -
LT Crew Cab Pickup 2017 - 2019 V8 6.0L -
LT Crew Cab Pickup 2017 - 2019 V8 6.0L FLEX -
LT Extended Cab Pickup 2017 - 2018 V8 6.0L FLEX -
LT Extended Cab Pickup 2017 - 2018 V8 6.0L -
LT Standard Cab Pickup 2017 - 2018 V8 6.0L FLEX -
LT Standard Cab Pickup 2017 - 2018 V8 6.0L -
LTZ Crew Cab Pickup 2017 - 2019 V8 6.0L FLEX -
LTZ Crew Cab Pickup 2017 - 2019 V8 6.0L -
LTZ Extended Cab Pickup 2017 - 2018 V8 6.0L -
LTZ Extended Cab Pickup 2017 - 2018 V8 6.0L FLEX -
WT Cab & Chassis 2017 - 2019 V8 6.0L FLEX -
WT Cab & Chassis 2017 - 2019 V8 6.0L -
WT Crew Cab Pickup 2017 - 2019 V8 6.0L FLEX -
WT Crew Cab Pickup 2017 - 2019 V8 6.0L -
WT Extended Cab Pickup 2017 - 2018 V8 6.0L FLEX -
WT Extended Cab Pickup 2017 - 2018 V8 6.0L -
WT Standard Cab Pickup 2017 - 2018 V8 6.0L FLEX -
WT Standard Cab Pickup 2017 - 2018 V8 6.0L -
LT Cab & Chassis 2019 V8 6.0L CNG -
LT Crew Cab Pickup 2019 V8 6.0L CNG -
LTZ Crew Cab Pickup 2019 V8 6.0L CNG -
WT Cab & Chassis 2019 V8 6.0L CNG -
WT Crew Cab Pickup 2019 V8 6.0L CNG -
Applies to every configuration above: RWD | Automatic | drive_type: include RWD; engine_size: include 6.0L; engine_size: include 6.0L; transmission: include Automatic; transmission_speeds: include 6 [inferred]
GMC 4 models(tapclick to expand)(tapclick to hide)
Savana 2500 2017-2019 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Base Extended Cargo Van 2017 V8 4.8L FLEX RWD | Automatic
Base Standard Cargo Van 2017 V8 4.8L FLEX RWD | Automatic
Base Extended Cargo Van 2017 - 2019 V8 6.0L RWD | Automatic
Base Extended Cargo Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
Base Standard Cargo Van 2017 - 2019 V8 6.0L RWD | Automatic
Base Standard Cargo Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
LS Standard Passenger Van 2017 V8 4.8L FLEX RWD | Automatic
LS Standard Passenger Van 2017 - 2019 V8 6.0L RWD | Automatic
LS Standard Passenger Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
LT Standard Passenger Van 2017 V8 4.8L FLEX RWD | Automatic
LT Standard Passenger Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
LT Standard Passenger Van 2017 - 2019 V8 6.0L RWD | Automatic
Base Extended Cargo Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
Base Standard Cargo Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
LS Standard Passenger Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
LT Standard Passenger Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
Applies to every configuration above: Hollander: SAVANA 2500 VAN 17 (AT), 4.8L | SAVANA 2500 VAN 17-19 (AT), 6.0L; drive_type: include RWD; engine_size: include 6.0L; engine_size: include 4.8L; transmission: include Automatic; transmission_speeds: include 6 [inferred]
Savana 3500 2017-2019 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Base Cutaway Van 2017 V8 4.8L FLEX RWD | Automatic
Base Extended Cargo Van 2017 V8 4.8L FLEX RWD | Automatic
Base Standard Cargo Van 2017 V8 4.8L FLEX RWD | Automatic
Base Cutaway Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
Base Cutaway Van 2017 - 2019 V8 6.0L RWD | Automatic
Base Extended Cargo Van 2017 - 2019 V8 6.0L RWD | Automatic
Base Extended Cargo Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
Base Standard Cargo Van 2017 - 2019 V8 6.0L RWD | Automatic
Base Standard Cargo Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
LS Extended Passenger Van 2017 V8 4.8L FLEX RWD | Automatic
LS Standard Passenger Van 2017 V8 4.8L FLEX RWD | Automatic
LS Extended Passenger Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
LS Extended Passenger Van 2017 - 2019 V8 6.0L RWD | Automatic
LS Standard Passenger Van 2017 - 2019 V8 6.0L RWD | Automatic
LS Standard Passenger Van 2017 - 2018 V8 6.0L FLEX RWD | Automatic
LS Standard Passenger Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
LS Standard Passenger Van 2017 - 2018 V8 6.0L RWD | Automatic
LT Extended Passenger Van 2017 V8 4.8L FLEX RWD | Automatic
LT Standard Passenger Van 2017 V8 4.8L FLEX RWD | Automatic
LT Extended Passenger Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
LT Extended Passenger Van 2017 - 2019 V8 6.0L RWD | Automatic
LT Standard Passenger Van 2017 - 2018 V8 6.0L FLEX RWD | Automatic
LT Standard Passenger Van 2017 - 2019 V8 6.0L RWD | Automatic
LT Standard Passenger Van 2017 - 2018 V8 6.0L RWD | Automatic
LT Standard Passenger Van 2017 - 2019 V8 6.0L FLEX RWD | Automatic
Base Cutaway Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
Base Extended Cargo Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
Base Extended Passenger Van 2018 V8 6.0L RWD | Automatic
Base Extended Passenger Van 2018 V8 6.0L CNG RWD | Automatic
Base Extended Passenger Van 2018 V8 6.0L FLEX RWD | Automatic
Base Standard Cargo Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
Base Standard Passenger Van 2018 V8 6.0L RWD | Automatic
Base Standard Passenger Van 2018 V8 6.0L FLEX RWD | Automatic
Base Standard Passenger Van 2018 V8 6.0L CNG RWD | Automatic
LS Extended Passenger Van 2018 V8 6.0L FLEX RWD | Automatic
LS Extended Passenger Van 2018 V8 6.0L CNG RWD | Automatic
LS Extended Passenger Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
LS Extended Passenger Van 2018 V8 6.0L RWD | Automatic
LS Standard Passenger Van 2018 V8 6.0L CNG RWD | Automatic
LS Standard Passenger Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
LT Extended Passenger Van 2018 V8 6.0L RWD | Automatic
LT Extended Passenger Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
LT Extended Passenger Van 2018 V8 6.0L CNG RWD | Automatic
LT Extended Passenger Van 2018 V8 6.0L FLEX RWD | Automatic
LT Standard Passenger Van 2018 V8 6.0L CNG RWD | Automatic
LT Standard Passenger Van 2018 - 2019 V8 6.0L CNG RWD | Automatic
Applies to every configuration above: Hollander: SAVANA 3500 VAN 17 (AT), 4.8L | SAVANA 3500 VAN 17-19 (AT), 6.0L; drive_type: include RWD; engine_size: include 6.0L; engine_size: include 4.8L; transmission: include Automatic; transmission_speeds: include 6 [inferred]
Sierra 2500 HD 2017-2019 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Base Crew Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
Base Crew Cab Pickup 2017 - 2019 V8 6.0L RWD | Automatic
Base Extended Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
Base Extended Cab Pickup 2017 - 2019 V8 6.0L RWD | Automatic
Base Standard Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
Base Standard Cab Pickup 2017 - 2019 V8 6.0L RWD | Automatic
Denali Crew Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
SLE Crew Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
SLE Crew Cab Pickup 2017 - 2019 V8 6.0L RWD | Automatic
SLE Extended Cab Pickup 2017 - 2019 V8 6.0L RWD | Automatic
SLE Extended Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
SLE Standard Cab Pickup 2017 - 2018 V8 6.0L RWD | Automatic
SLE Standard Cab Pickup 2017 - 2018 V8 6.0L FLEX RWD | Automatic
SLT Crew Cab Pickup 2017, 2019 V8 6.0L RWD | Automatic
SLT Crew Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
SLT Extended Cab Pickup 2017, 2019 V8 6.0L RWD | Automatic
SLT Extended Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
Base Crew Cab Pickup 2019 V8 6.0L CNG RWD | Automatic
Base Extended Cab Pickup 2019 V8 6.0L CNG RWD | Automatic
Base Standard Cab Pickup 2019 V8 6.0L CNG RWD | Automatic
Denali Crew Cab Pickup 2019 V8 6.0L RWD | Automatic
SLE Crew Cab Pickup 2019 V8 6.0L CNG RWD | Automatic
SLE Extended Cab Pickup 2019 V8 6.0L CNG RWD | Automatic
SLT Crew Cab Pickup 2019 V8 6.0L CNG RWD | Automatic
SLT Extended Cab Pickup 2019 V8 6.0L CNG RWD | Automatic
Applies to every configuration above: Hollander: SIERRA 2500 PICKUP 17-19 (AT), 6.0L, 4x2; drive_type: include RWD; engine_size: include 6.0L; engine_size: include 6.0L; transmission: include Automatic; transmission_speeds: include 6 [inferred]
Sierra 3500 HD 2017-2019 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Base Cab & Chassis 2017 - 2019 V8 6.0L FLEX RWD | Automatic
Base Cab & Chassis 2017 - 2019 V8 6.0L RWD | Automatic
Base Crew Cab Pickup 2017 - 2019 V8 6.0L RWD | Automatic
Base Crew Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
Base Extended Cab Pickup 2017 - 2018 V8 6.0L FLEX RWD | Automatic
Base Extended Cab Pickup 2017 - 2018 V8 6.0L RWD | Automatic
Base Standard Cab Pickup 2017 - 2018 V8 6.0L FLEX RWD | Automatic
Base Standard Cab Pickup 2017 - 2018 V8 6.0L RWD | Automatic
Denali Crew Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
Denali Crew Cab Pickup 2017 - 2019 V8 6.0L RWD | Automatic
SLE Cab & Chassis 2017 - 2019 V8 6.0L FLEX RWD | Automatic
SLE Cab & Chassis 2017 - 2019 V8 6.0L RWD | Automatic
SLE Crew Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
SLE Crew Cab Pickup 2017 - 2019 V8 6.0L RWD | Automatic
SLE Extended Cab Pickup 2017 - 2018 V8 6.0L FLEX RWD | Automatic
SLE Extended Cab Pickup 2017 - 2018 V8 6.0L RWD | Automatic
SLE Standard Cab Pickup 2017 - 2018 V8 6.0L RWD | Automatic
SLE Standard Cab Pickup 2017 - 2018 V8 6.0L FLEX RWD | Automatic
SLT Crew Cab Pickup 2017 - 2019 V8 6.0L FLEX RWD | Automatic
SLT Crew Cab Pickup 2017 - 2019 V8 6.0L RWD | Automatic
SLT Extended Cab Pickup 2017 - 2018 V8 6.0L RWD | Automatic
SLT Extended Cab Pickup 2017 - 2018 V8 6.0L FLEX RWD | Automatic
Base Cab & Chassis 2019 V8 6.0L CNG RWD | Automatic
Base Crew Cab Pickup 2019 V8 6.0L CNG RWD | Automatic
Denali Cab & Chassis 2019 V8 6.0L FLEX RWD | Automatic
Denali Cab & Chassis 2019 V8 6.0L RWD | Automatic
SLE Cab & Chassis 2019 V8 6.0L CNG RWD | Automatic
SLE Crew Cab Pickup 2019 V8 6.0L CNG RWD | Automatic
SLT Crew Cab Pickup 2019 V8 6.0L CNG RWD | Automatic
Applies to every configuration above: Hollander: SIERRA 3500 PICKUP 17-19 (AT), 6.0L, 4x2; drive_type: include RWD; engine_size: include 6.0L; engine_size: include 6.0L; transmission: include Automatic; transmission_speeds: include 6 [inferred]
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Know This Transmission Before You Buy

The research behind our purchase interview — recalls, bulletins and real install economics for this transmission family:

A quick look at your own vehicle makes sure the right transmission shows up:

  • Confirm your VIN's 8th digit is G (6.0L) or F (4.8L).
  • Verify your drivetrain is 4x2 (Rear-Wheel Drive) only.
  • Check the SPID sticker in your glove box or door jamb for RPO code MYD.
🔎 Where to look: Locate the barcode sticker on the side of your existing transmission case to match the 4-character broadcast code or the 10-digit GM part number.

What the install really takes — plan and budget with confidence:

5 to 9 hoursshop labor$750 to $1,500 USDtypical shop bill, on top of the partAdvanced / ExpertDIY difficulty

Special tools this job needs:

  • Heavy-duty transmission jack
  • Scan tool capable of performing GM Fast Learn / adaptive relearn
  • Professional oil cooler line flush tool
  • GM-compatible diagnostic scan tool (Tech 2 or MDI/MDI2 with GDS2/SPS subscription)
🔌 Wiring harness: Wiring harnesses differ between 4WD, diesel, and 1500-series configurations. This unit is compatible only with the specified 4x2 gas-engine harness.

Budget for these consumables at install:

  • DEXRON-VI Full Synthetic ATF
  • New transmission fluid filter (GM Part #24236517) and pan gasket/seal (GM Part #24225347)
  • New torque converter seal (front pump seal)
  • New extension housing seal
  • Professional transmission cooler flush solvent / heated pressurized flushing machine

What your vehicle’s computers will need after the swap:

⚠️ Requiredprogramming / calibration⚠️ Yesdealer tool needed⚠️ YesECU/PCM re-marriage

What’s involved: VIN-specific dealer programming (using GM SPS2 / Techline Connect) AND a TCM adaptive relearn (Service Fast Learn).

The Transmission Control Module (TEHCM) inside the replacement transmission must be flashed with the buyer's vehicle's specific VIN and the latest GM calibration software. After the flash, a Fast Learn or Transmission Adaptive Pressure Relearn must be performed.

Pro tips for a smooth first start-up — hand them to whoever does the install:

  • Torque Converter Seating: Must feel/hear three distinct clicks or drops as it engages. If not fully seated, bolting the bellhousing to the engine will instantly crack the transmission oil pump.
  • Cooler Line Flush: Mandatory to clear out metal shavings from previous transmission failure to prevent immediate contamination.
  • Bellhousing Dowel Pins: Ensure both engine-to-transmission alignment dowel pins are present in the engine block.
  • Fluid Fill Procedure: No traditional dipstick on some applications. Fluid level must be checked via the fill/level check plug on the side of the case at operating temperature (86°F to 122°F / 30°C to 50°C) with the engine running.
  • Adaptive Relearn After Programming: Must perform the adaptive learn procedure to set baseline clutch pressures.

Easy to get right once you know them:

  • Forgetting to program the TEHCM before driving.
  • Using the wrong fluid (non-Dexron VI fluid).
  • Failing to flush the transmission cooler.
  • Improper torque converter seating leading to a cracked pump.
  • Buying the wrong drivetrain version (buying a 2WD transmission for a 4WD truck or vice-versa).

Not issues with the units on this page — the manufacturer documented these for every transmission of this family, wherever you buy one. Handy for your installer:

severeTorque Converter Clutch (TCC) Slippage & ShudderAll years

🔎 Recommended at install: Replace torque converter; flush entire system to remove metal debris.

severeTEHCM / Solenoid FailureAll years

🔎 Recommended at install: Replace internal TEHCM pressure switch membranes or complete TEHCM assembly.

severeTSB 23-NA-142 / NHTSA Investigation (Loss of Propulsion)2016-2018 and 2021-2022

🔎 Recommended at install: Replace forward check balls and separator plate.

moderateThermal Bypass Valve (TBV) OverheatingAll years

🔎 Recommended at install: Install upgraded aftermarket bypass kit (Sonnax or Sure Cool).

severeCracked 1-2-3-4 / 3-5-Reverse Clutch DrumAll years

🔎 Recommended at install: Replace clutch drum.

Researched from factory recalls, TSBs and OEM service data (reference unit 400-10240-5573291). Unit-specific details — mileage, condition, warranty, freight — are covered in the checkout interview.

Policies, in plain English.

Shipping & Handling

  • Ships by LTL freight on a pallet — a real freight truck, not a parcel van
  • Your checkout freight quote covers delivery to your door (liftgate service included for residential addresses)
  • The carrier calls ahead to schedule a delivery window — someone must be present to receive it
  • Typically palletized and picked up within 2–3 business days; transit time depends on distance

120-Day Warranty

This part includes a 120-day warranty.

  • If the part fails within the warranty window, we'll replace it or refund per the coverage terms
  • Coverage is parts-only — installation labor is not included
  • Warranty covers defects — not installation errors, misuse, or damage after installation

Your pre-purchase interview reviews these exact terms with you before anything is charged.

Returns (30 Days)

We accept returns of uninstalled parts within 30 days of delivery for this part.

  • Defective parts: We will replace the part or issue a refund at our discretion
  • Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
  • Return shipping: This part ships by freight (LTL) — the part price is refundable per the terms above, but shipping costs are non-refundable and return freight follows the seller's return terms. Your pre-purchase interview walks through the exact numbers before you buy
  • Parts must be returned in original packaging and unmodified condition
  • Poorly packaged returns that arrive damaged will not be credited

Damaged in Shipping?

Freight damage is rare — and you're fully protected when you do two things at delivery:

  • Inspect before you sign — you're allowed time to look the pallet over while the driver waits
  • Write any damage on the delivery receipt before signing — that one line is what makes a freight claim succeed
  • Severe damage? Refuse the delivery — it goes back at no cost to you and we make it right
  • Photograph the pallet before unwrapping; report concealed damage within 24 hours of delivery

We handle the carrier claim — you just help document it. Your pre-purchase interview walks through this checklist too.

Order Cancellation

Cancel before shipment for a full refund. Once the pallet has been built, a preparation charge may apply — and once the freight carrier picks it up, shipping costs are non-refundable and standard return terms apply. Your pre-purchase interview shows the exact numbers before you pay.

Expert Guides

2017-2019 Sierra/Silverado HD & Express/Savana 6L90: Problems, Identification, and Used Replacement

Identify the heavy-duty 6L90 transmission, understand its common failure points, and learn what to look for when buying a used replacement unit.

Read Full Guide →

Miscellaneous Information

OEM Part Numbers:
GM: 19431753, 24279077
Other: 7DCA

Fits Years: 2017 2018 2019

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120DAY
Yard Warranty

Backed By The Selling Yard

This unit ships with the selling yard's 120-day warranty. Longer plans can be requested during checkout.

What buyers are saying.

★★★★★ 4.9 1,451 verified reviews

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