GM Genuine Parts 6-Speed Automatic Transmission Assembly

About this product

Power your Chevrolet, Buick, GMC, or Cadillac vehicle with a Genuine GM Parts 6T40 6-Speed Automatic Transmission Assembly. These automatic transmissions are electronically controlled for smooth shifts and durability. Only Genuine GM Parts are tested to meet GM Original Equipment standards and are designed specifically to fit your vehicle.

Warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

The transmissions' helical gears are ground and honed to help ensure precise dimensions and tolerances, which can help minimize gear noise and vibration
Features 'clutch-to-clutch’ controls and advanced electronics to deliver precise shift timing and great driveability
Easy to install with Plug-n-Play originals
Proper fit and calibration to match your vehicle
Designed and tested specifically for GM vehicles
Validated for consistent high-quality standards

Core Charge1000.00

ClassificationOE

Length21.11 in / 536.43 mm

Reverse Shift Position Quantity1

Torque Converter IncludedYes

Shift Stub IncludedYes

Forward Shift Position Quantity6

Casing MaterialAluminum

Core Charge1000.00

Length21.11 in / 536.43 mm

Torque Converter IncludedYes

Forward Shift Position Quantity6

ClassificationOE

Reverse Shift Position Quantity1

Shift Stub IncludedYes

Casing MaterialAluminum

36 Months/100,000 Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

Good Maintenance Practices:

Before purchasing and installing an automatic transmission assembly make sure it is the correct size and fit for your vehicle.
Keep transmission fluid levels full.
Flush transmission cooler and change filter when recommended.
Ensure that all drivetrain components are in good shape.
Ensure all driveline angles remain correct.
Do not continue to operate vehicle with any undiagnosed vibrations.
Regularly inspect assemblies for signs of damage or failure, and replace them if signs of damage or failure are found.

Service automatic transmission assemblies when signs of wear or failure are displayed, including but not limited to:

Transmission slippage
Unusual sounds from transmission area
Transmission fluid puddling
Transmission hesitates when shifting
Transmission slipping into neutral when in a particular gear range
Transmission fluid becoming very dark in color and/or smelling burnt
Rough clunks when gear engages

Certain automotive parts can be recycled and remanufactured for future use. These parts have a "core charge" that is used as a deposit on the portion of the part that can be reused. The reason for this charge is to encourage the return of your old part. When the recyclable component from your old part is returned to us, the charge is refunded to you.

Model	Body Style	Trim	Year(s)
LaCrosse		Base, Leather	2014, 2015, 2016
Regal		Premium	2014, 2015, 2016

About this product

Warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

The transmissions' helical gears are ground and honed to help ensure precise dimensions and tolerances, which can help minimize gear noise and vibration
Features 'clutch-to-clutch’ controls and advanced electronics to deliver precise shift timing and great driveability
Easy to install with Plug-n-Play originals
Proper fit and calibration to match your vehicle
Designed and tested specifically for GM vehicles
Validated for consistent high-quality standards

Core Charge1000.00

ClassificationOE

Length21.11 in / 536.43 mm

Reverse Shift Position Quantity1

Torque Converter IncludedYes

Shift Stub IncludedYes

Forward Shift Position Quantity6

Casing MaterialAluminum

Core Charge1000.00

Length21.11 in / 536.43 mm

Torque Converter IncludedYes

Forward Shift Position Quantity6

ClassificationOE

Reverse Shift Position Quantity1

Shift Stub IncludedYes

Casing MaterialAluminum

36 Months/100,000 Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

Good Maintenance Practices:

Before purchasing and installing an automatic transmission assembly make sure it is the correct size and fit for your vehicle.
Keep transmission fluid levels full.
Flush transmission cooler and change filter when recommended.
Ensure that all drivetrain components are in good shape.
Ensure all driveline angles remain correct.
Do not continue to operate vehicle with any undiagnosed vibrations.
Regularly inspect assemblies for signs of damage or failure, and replace them if signs of damage or failure are found.

Service automatic transmission assemblies when signs of wear or failure are displayed, including but not limited to:

Transmission slippage
Unusual sounds from transmission area
Transmission fluid puddling
Transmission hesitates when shifting
Transmission slipping into neutral when in a particular gear range
Transmission fluid becoming very dark in color and/or smelling burnt
Rough clunks when gear engages

Model	Body Style	Trim	Year(s)
LaCrosse		Base, Leather	2014, 2015, 2016
Regal		Premium	2014, 2015, 2016

Frequently Asked Questions

Yes. Consult vehicle manual, specification sheet or a technician to determine proper fluid type for your transmission.

Yes. Transmission fluid should be bright red. Any other color indicates a problem and your vehicle should be taken in for service.

About this product

Product details

Specifications

Warranty

Maintenance

Good Maintenance Practices:

Service automatic transmission assemblies when signs of wear or failure are displayed, including but not limited to:

Core Charge

Fits these vehicles

About this product

Product details

Specifications

Warranty

Maintenance

Good Maintenance Practices:

Service automatic transmission assemblies when signs of wear or failure are displayed, including but not limited to:

Core Charge

Fits these vehicles

Frequently Asked Questions

Is there a way to find out what type of fluid my transmission takes?

Is there a certain color that my transmission fluid should be?

GM Genuine Parts 6-Speed Automatic Transmission Assembly

GM Genuine Parts 6-Speed Automatic Transmission Assembly