Luk GATK6L90 Automatic Transmission Master Repair Kit

OE-Quality Transmission Repair Kit

The LuK GATK6L90 automatic transmission master repair kit is built for professional transmission service on a wide range of GM trucks, SUVs, and performance vehicles. It includes the OE-quality bearings needed to complete a transmission repair with components selected for the specific application.

Compatible with 2006-2023 Chevrolet, GMC, Cadillac, Pontiac, Hummer, and select performance models, this kit supports transmission rebuild work on vehicles such as the Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Tahoe. Part number GATK6L90 is also referenced as 4620219100 for the same application.

• Automatic transmission master repair kit for service and rebuild work
• Includes OE-quality bearings for the listed transmission application
• Application-specific component selection for professional repair
• Compatible with a broad range of GM trucks, SUVs, and cars
• LuK part number GATK6L90

Vehicle Fitment

• Fits 2010-2023 Chevrolet Express 2500, N/A
• Fits 2010-2023 Chevrolet Express 3500, N/A
• Fits 2007-2023 Chevrolet Silverado 2500 HD, N/A
• Fits 2007-2023 Chevrolet Silverado 3500 HD, N/A
• Fits 2010-2023 GMC Savana 2500, N/A
• Fits 2010-2023 GMC Savana 3500, N/A
• Fits 2007-2023 GMC Sierra 2500 HD, N/A
• Fits 2007-2023 GMC Sierra 3500 HD, N/A
• Fits 2022 Chevrolet Silverado 1500 LTD, N/A
• Fits 2022 GMC Sierra 1500 Limited, N/A
• Fits 2009-2021 Chevrolet Silverado 1500, N/A
• Fits 2018-2021 GMC Sierra 1500, N/A
• Fits 2015-2016 GMC Sierra 1500, N/A
• Fits 2007-2013 GMC Sierra 1500, N/A
• Fits 2018-2020 Chevrolet Tahoe, N/A
• Fits 2016 Chevrolet Tahoe, N/A
• Fits 2009-2014 Chevrolet Tahoe, N/A
• Fits 2007-2020 GMC Yukon, N/A
• Fits 2018-2020 GMC Yukon XL, N/A
• Fits 2015 GMC Yukon XL, N/A
• Fits 2019 Chevrolet Silverado 1500 LD, N/A, Exc. Heavy Duty Towing Package
• Fits 2016-2019 Chevrolet Suburban 3500 HD, N/A
• Fits 2019 GMC Sierra 1500 Limited, N/A, Exc. Heavy Duty Towing Package
• Fits 2011-2017 Chevrolet Caprice, N/A
• Fits 2014-2017 Chevrolet SS, N/A
• Fits 2017 Chevrolet Tahoe, N/A, Exc. Heavy Duty Towing Package
• Fits 2015 Chevrolet Tahoe, N/A, Exc. Heavy Duty Towing Package
• Fits 2017 GMC Sierra 1500, N/A, Exc. Heavy Duty Towing Package
• Fits 2014 GMC Sierra 1500, N/A, Exc. Heavy Duty Towing Package
• Fits 2016-2017 GMC Yukon XL, N/A, Exc. Heavy Duty Towing Package
• Fits 2009-2015 Cadillac CTS, N/A
• Fits 2007-2015 Cadillac Escalade, N/A
• Fits 2012-2015 Chevrolet Camaro, N/A
• Fits 2006-2014 Chevrolet Corvette, N/A
• Fits 2008-2014 Chevrolet Suburban 1500, N/A
• Fits 2007-2014 GMC Yukon XL 1500, N/A
• Fits 2007-2013 Cadillac Escalade EXT, N/A
• Fits 2009-2013 Chevrolet Avalanche, N/A
• Fits 2008-2013 GMC Yukon XL 2500, N/A
• Fits 2006-2009 Cadillac STS, N/A
• Fits 2007-2009 Cadillac XLR, N/A
• Fits 2008-2009 Hummer H2, N/A
• Fits 2008-2009 Pontiac G8, N/A

Common Repair Uses

• Transmission bearing wear during rebuild service
• Noise or rough operation traced to internal bearing damage
• High-mileage transmission refresh on GM trucks and SUVs
• Repair work after internal transmission teardown
• Restoration of proper transmission operation after component failure

Installation Notes

Professional transmission disassembly and reassembly are required. Verify transmission identification and vehicle application before ordering, especially on models with Heavy Duty Towing Package exclusions. Confirm all internal components are inspected and replaced as needed during service.

Quality Assurance

LuK selects OE-quality components for each specific transmission application, and this kit is assembled to support professional-grade repair work. The GATK6L90 is a direct-reference service kit for the listed applications and cross-references 4620219100.