Firestone Coil-Rite Air Helper Spring Kit Rear 04-17 Toyota Sienna (W237604155)

If you're looking for a smoother ride for your vehicle that has a coil spring suspension, Firestone Coil-Rite air helper springs are what you need. Designed to fit inside existing coil springs to create a variable spring rate, Coil-Rite will level your vehicle and assist with more effective braking and handling, even under heavy loading and adverse road conditions.Coil-Rite enables you to control the air pressure in the air helper springs so you can make adjustments for varying loads and road conditions. Spring performance can be altered as easily as inflating a tire.Firestone Coil-Rite air helper springs are made of durable, elastic polyurethane, providing years of comfort and stability to your vehicle. The air springs will support 500-1000 lbs. per set (not to exceed vehicle's GVWR). Coil-Rite Air Helper Springs are designed to work in temperatures between 180deg F (82deg C) and -40deg F (-40deg C). Sienna Fitment: Buick Terraza CX 2005 to 2007 Buick Terraza CXL 2005 to 2007 Chevrolet Uplander Base 2005 to 2008 Chevrolet Uplander LS 2005 to 2008 Chevrolet Uplander LT 2005 to 2008 Saturn Relay 1 2007 Saturn Relay 2 2005 to 2007 Saturn Relay 3 2005 to 2007 Scion xA Base 2004 to 2005 Toyota Sienna Base 2011 to 2013 Toyota Sienna CE 2004 to 2010 Toyota Sienna L 2013 to 2020 Toyota Sienna LE 2004 to 2022 Toyota Sienna Limited 2006 to 2008 Toyota Sienna Limited 2011 to 2022 Toyota Sienna Limited Premium 2018 to 2020 Toyota Sienna Platinum 2021 to 2022 Toyota Sienna SE 2011 to 2020 Toyota Sienna SE Premium 2018 to 2020 Toyota Sienna XLE 2004 to 2022 Toyota Sienna XLE Limited 2004 to 2005 Toyota Sienna XLE Premium 2018 to 2020 Toyota Sienna XSE 2021 to 2022