DESCRIPTION & SPECS
Vehicles with listed GM transmissions may exhibit insufficient line rise in drive ranges, soft shifts and/or burnt clutches. These problems may be caused by continuous oscillation of the boost valve within the boost sleeve, creating excessive wear and a path for EPC fluid pressure to leak to exhaust. Sonnax boost valve kit 104520-12K has upgraded materials and minimal clearances to prevent wear and restore proper hydraulic control. The sleeve also has a slightly larger EPC feed orifice to provide quicker throttle response. A new pressure regulator valve outer spring is also included to replace weakened original springs and provides a modest 5 psi increase across the pressure curve. Boost sleeve is manufactured from highly wear-resistant billet aluminum to prevent wear Larger feed orifice provides quicker throttle response Replacement spring provides modest 5psi line pressure increase Drop-in Zip Valve™ parts install quickly and easily
Valve Kit includes; Boost Valve, With Spring & Sleeve, Updated
TRANSMISSIONS
NAME YEARS
6L80 2006 - 2022
6L45 2010 - 2017
6L50 2007 - 2022
6L90 2005 - 2024
GA6-L45R 2006 - 2013
6L80-E 2016 - 2016
VEHICLE FITMENT
YEARS VEHICLE DRIVE TYPES
2011 - 2012 Airstream Avenue 4 X 2
2006 - 2010 BMW X3 AWD
2007 - 2008 BMW 328xi AWD
2009 - 2013 BMW 328i xDrive AWD
2007 - 2013 BMW 328i RWD
2008 - 2013 BMW 128i RWD
2006 - 2009 Cadillac XLR RWD
2006 - 2011 Cadillac STS AWD, RWD
2007 - 2009 Cadillac SRX AWD, RWD
2007 - 2013 Cadillac Escalade EXT AWD
2007 - 2015 Cadillac Escalade ESV AWD, RWD, 4WD
2007 - 2015 Cadillac Escalade AWD, RWD, 4WD
2008 - 2015 Cadillac CTS AWD, RWD
2013 - 2015 Cadillac ATS AWD, RWD
2009 - 2020 Chevrolet Tahoe RWD, 4WD
2016 - 2019 Chevrolet Suburban 3500 HD 4WD
2008 - 2013 Chevrolet Suburban 2500 RWD, 4WD
2008 - 2014 Chevrolet Suburban 1500 RWD, 4WD
2015 - 2020 Chevrolet Suburban RWD, 4WD
2014 - 2017 Chevrolet SS RWD
2007 - 2023 Chevrolet Silverado 3500 HD RWD, 4WD
2007 - 2023 Chevrolet Silverado 2500 HD RWD, 4WD
2022 - 2022 Chevrolet Silverado 1500 LTD RWD, 4WD
2019 - 2019 Chevrolet Silverado 1500 LD RWD, 4WD
2009 - 2021 Chevrolet Silverado 1500 RWD, 4WD
2016 - 2016 Chevrolet LCF 4500 4 X 2
2024 - 2024 Chevrolet LCF 3500HG 4 X 2
2016 - 2023 Chevrolet LCF 3500 4 X 2
2010 - 2023 Chevrolet Express 4500 4 X 2
2010 - 2023 Chevrolet Express 3500 RWD
2010 - 2023 Chevrolet Express 2500 RWD
2006 - 2014 Chevrolet Corvette RWD
2015 - 2022 Chevrolet Colorado RWD, 4WD
2011 - 2017 Chevrolet Caprice RWD
2010 - 2015 Chevrolet Camaro RWD
2009 - 2013 Chevrolet Avalanche RWD, 4WD
2019 - 2022 Coachmen Leprechaun Premier 4 X 2
2012 - 2023 Coachmen Leprechaun 4 X 2
2020 - 2022 Coachmen Freelander Premier 4 X 2
2010 - 2024 Coachmen Freelander 4 X 2
2020 - 2021 Coachmen Cross Trek 4 X 2
2022 - 2022 Coachmen Cross Trail XL 4 X 2
2013 - 2019 Coachmen Concord 4 X 2
2013 - 2015 Econoline Sidekick 4 X 2
2023 - 2023 Entegra Coach Odyssey SE 4 X 2
2012 - 2024 Forest River Sunseeker LE 4 X 2
2010 - 2021 Forest River Sunseeker 4 X 2
2012 - 2024 Forest River Forester LE 4 X 2
2020 - 2021 Forest River Forester Classic 4 X 2
2010 - 2019 Forest River Forester 4 X 2
2008 - 2010 Four Winds International Windsport 4 X 2
2010 - 2010 Four Winds International Hurricane 4 X 2
2008 - 2013 GMC Yukon XL 2500 RWD, 4WD
2007 - 2014 GMC Yukon XL 1500 AWD, RWD, 4WD
2015 - 2020 GMC Yukon XL RWD, 4WD
2007 - 2020 GMC Yukon AWD, RWD, 4WD
2007 - 2023 GMC Sierra 3500 HD RWD, 4WD
2007 - 2023 GMC Sierra 2500 HD RWD, 4WD
2019 - 2022 GMC Sierra 1500 Limited RWD, 4WD
2007 - 2021 GMC Sierra 1500 AWD, RWD, 4WD
2010 - 2023 GMC Savana 4500 4 X 2
2010 - 2023 GMC Savana 3500 RWD
2010 - 2023 GMC Savana 2500 RWD
2015 - 2022 GMC Canyon RWD, 4WD
2017 - 2024 Gulf Stream Conquest 4 X 2
2005 - 2007 Holiday Rambler Vacationer 4 X 2
2007 - 2007 Holiday Rambler Admiral SVE 4 X 2
2005 - 2006 Holiday Rambler Admiral SE 4 X 2
2007 - 2010 Holiday Rambler Admiral 4 X 2
2008 - 2009 Hummer H2 4WD
2018 - 2024 Jayco Redhawk SE 4 X 2
2016 - 2018 Jayco Redhawk 4 X 2
2012 - 2016 Leisure Travel Libero 4 X 2
2012 - 2012 Leisure Travel Free Flight 4 X 2
2010 - 2015 Pleasure-Way Lexor 4 X 2
2012 - 2012 Pleasure-Way Basic 4 X 2
2008 - 2009 Pontiac G8 RWD
2021 - 2024 Thor Motor Coach Quantum LC 4 X 2
2016 - 2023 Thor Motor Coach Quantum 4 X 2
2023 - 2024 Thor Motor Coach Geneva 4 X 2
2019 - 2024 Thor Motor Coach Freedom Elite 4 X 2
2011 - 2011 Thor Motor Coach Four Winds Siesta 4 X 2
2011 - 2024 Thor Motor Coach Four Winds 4 X 2
2019 - 2022 Thor Motor Coach Daybreak 4 X 2
2021 - 2024 Thor Motor Coach Coleman 4 X 2
2011 - 2012 Thor Motor Coach Chateau Citation 4 X 2
2011 - 2024 Thor Motor Coach Chateau 4 X 2