Firestone fir4118 - Coil-Rite Air Helper Spring Kit

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). Coil-Rite® Air Helper Spring Kit; Rear; Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required;

• Keep Headlights Aimed On The Road
• Improve Braking Effectiveness
• Improve Steering And Balance
• Increase Vehicle Stability
• Maintain A Level Vehicle
• Prevent Bottoming Out
• Reduce Tire Wear

Brief Description: The Firestone Coil-Rite Air Helper Spring Kit is designed for vehicles with coil spring suspension. Installed inside existing coil springs, the air helper springs create a variable spring rate to help level the vehicle and support braking, handling, and stability under varying loads and road conditions.

Key Features & Performance Benefits:

• Helps maintain a level vehicle under load.
• Assists with braking effectiveness, steering, and balance.
• Helps increase vehicle stability and prevent bottoming out.
• Adjustable air pressure allows spring performance to be changed for varying loads and road conditions.

Key Product Specifications & Technical Data:

• Brand: Firestone
• Part Number: fir4118
• Product Line: Coil-Rite
• Application: Rear
• Product Type: Air helper spring kit
• Construction: Elastic polyurethane
• Support Capacity: 500–1,000 pounds per set
• Operating Temperature Range: -40°F to 180°F

What's Included in the Box: Air helper springs, supports, hardware, air line, and inflation valves. No drilling is required.

Fitment: Listed fitment includes 2010–2013 Audi A3 applications and 2010–2012 Audi A3 Quattro applications. The supplied product name also references a 1992–1996 Grand Cherokee application; verify vehicle fitment before purchase.

Fitments:
1993 Jeep Grand Cherokee Base
1993 Jeep Grand Cherokee Laredo
1993 Jeep Grand Cherokee Limited
1993 Jeep Grand Wagoneer Base
1994 Jeep Grand Cherokee Laredo
1994 Jeep Grand Cherokee Limited
1994 Jeep Grand Cherokee SE
1995 Jeep Grand Cherokee Laredo
1995 Jeep Grand Cherokee Limited
1995 Jeep Grand Cherokee Orvis
1995 Jeep Grand Cherokee SE
1996 Jeep Grand Cherokee Laredo
1996 Jeep Grand Cherokee Limited
1997 Jeep Grand Cherokee Laredo
1997 Jeep Grand Cherokee Limited
1997 Jeep Grand Cherokee Orvis
1997 Jeep Grand Cherokee TSi
1998 Jeep Grand Cherokee 5.9 Limited
1998 Jeep Grand Cherokee Laredo
1998 Jeep Grand Cherokee Limited
1998 Jeep Grand Cherokee TSi
1998 Toyota Sienna CE
1998 Toyota Sienna LE
1999 Toyota Sienna CE
1999 Toyota Sienna LE
1999 Toyota Sienna XLE
2000 Toyota Sienna CE
2000 Toyota Sienna LE
2001 Toyota Echo Base
2001 Toyota Sienna CE
2001 Toyota Sienna LE
2001 Toyota Sienna XLE
2002 Toyota Echo Base
2002 Toyota Sienna CE
2002 Toyota Sienna LE
2002 Toyota Sienna XLE
2003 Infiniti FX45 Base
2003 Nissan Murano SE
2003 Nissan Murano SL
2003 Toyota Echo Base
2003 Toyota Sienna CE
2003 Toyota Sienna LE
2003 Toyota Sienna XLE
2004 Infiniti FX45 Base
2004 Nissan Murano SE
2004 Nissan Murano SL
2004 Nissan Quest S
2004 Nissan Quest SE
2004 Nissan Quest SL
2004 Toyota Echo Base
2005 Infiniti FX35 Base
2005 Infiniti FX45 Base
2005 Nissan Murano S
2005 Nissan Murano SE
2005 Nissan Murano SL
2005 Nissan Quest Base
2005 Nissan Quest S
2005 Nissan Quest SE
2005 Nissan Quest SL
2005 Toyota Echo Base
2006 Infiniti FX35 Base
2006 Infiniti FX45 Base
2006 Nissan Murano S
2006 Nissan Murano SE
2006 Nissan Murano SL
2006 Nissan Quest Base
2006 Nissan Quest S
2006 Nissan Quest SE
2006 Nissan Quest SL
2007 Infiniti FX35 Base
2007 Infiniti FX45 Base
2007 Nissan Murano S
2007 Nissan Murano SE
2007 Nissan Murano SL
2007 Nissan Quest Base
2007 Nissan Quest S
2007 Nissan Quest SE
2007 Nissan Quest SL
2008 Infiniti FX35 Base
2008 Infiniti FX45 Base
2008 Nissan Quest Base
2008 Nissan Quest S
2008 Nissan Quest SE
2008 Nissan Quest SL
2009 Nissan Quest Base
2009 Nissan Quest S
2009 Nissan Quest SE
2009 Nissan Quest SL
2010 Audi A3 Base
2010 Audi A3 TDI
2010 Audi A3 Quattro Base
2011 Audi A3 Base
2011 Audi A3 TDI
2011 Audi A3 Quattro Base
2012 Audi A3 Base
2012 Audi A3 TDI
2012 Audi A3 Quattro Base
2012 Chevrolet Volt Base
2013 Audi A3 Base
2013 Chevrolet Volt Base
2013 Nissan Pathfinder Platinum
2013 Nissan Pathfinder S
2013 Nissan Pathfinder SL
2013 Nissan Pathfinder SV
2014 Chevrolet Volt Base
2014 Nissan Pathfinder Platinum
2014 Nissan Pathfinder Platinum Hybrid
2014 Nissan Pathfinder S
2014 Nissan Pathfinder SL
2014 Nissan Pathfinder SL Hybrid
2014 Nissan Pathfinder SV
2014 Nissan Pathfinder SV Hybrid
2015 Chevrolet Volt Base
2015 Nissan Pathfinder Platinum
2015 Nissan Pathfinder Platinum Hybrid
2015 Nissan Pathfinder S
2015 Nissan Pathfinder SL
2015 Nissan Pathfinder SL Hybrid
2015 Nissan Pathfinder SV
2015 Nissan Pathfinder SV Hybrid
2016 Nissan Murano Platinum
2016 Nissan Murano Platinum Hybrid
2016 Nissan Murano S
2016 Nissan Murano SL
2016 Nissan Murano SL Hybrid
2016 Nissan Murano SV
2016 Nissan Pathfinder Platinum
2016 Nissan Pathfinder S
2016 Nissan Pathfinder SL
2016 Nissan Pathfinder SV
2017 Buick Envision Base
2017 Buick Envision Essence
2017 Buick Envision Preferred
2017 Buick Envision Premium
2017 Nissan Murano Platinum
2017 Nissan Murano S
2017 Nissan Murano SL
2017 Nissan Murano SV
2017 Nissan Pathfinder Platinum
2017 Nissan Pathfinder S
2017 Nissan Pathfinder SL
2017 Nissan Pathfinder SV
2018 Buick Envision Base
2018 Buick Envision Essence
2018 Buick Envision Preferred
2018 Buick Envision Premium
2018 Chevrolet Equinox L
2018 Chevrolet Equinox LS
2018 Chevrolet Equinox LT
2018 Chevrolet Equinox Premier
2018 GMC Terrain Denali
2018 GMC Terrain SL
2018 GMC Terrain SLE
2018 GMC Terrain SLT
2018 Nissan Murano Platinum
2018 Nissan Murano S
2018 Nissan Murano SL
2018 Nissan Murano SV
2018 Nissan Pathfinder Platinum
2018 Nissan Pathfinder S
2018 Nissan Pathfinder SL
2018 Nissan Pathfinder SV
2019 Buick Envision Base
2019 Buick Envision Essence
2019 Buick Envision Preferred
2019 Buick Envision Premium
2019 Buick Envision Premium II
2019 Chevrolet Equinox L
2019 Chevrolet Equinox LS
2019 Chevrolet Equinox LT
2019 Chevrolet Equinox Premier
2019 GMC Terrain Denali
2019 GMC Terrain SL
2019 GMC Terrain SLE
2019 GMC Terrain SLT
2019 Nissan Pathfinder Platinum
2019 Nissan Pathfinder S
2019 Nissan Pathfinder SL
2019 Nissan Pathfinder SV
2020 Buick Envision Base
2020 Buick Envision Essence
2020 Buick Envision Preferred
2020 Buick Envision Premium
2020 Buick Envision Premium II
2020 Chevrolet Equinox L
2020 Chevrolet Equinox LS
2020 Chevrolet Equinox LT
2020 Chevrolet Equinox Premier
2020 GMC Terrain Denali
2020 GMC Terrain SL
2020 GMC Terrain SLE
2020 GMC Terrain SLT
2020 Nissan Pathfinder Platinum
2020 Nissan Pathfinder S
2020 Nissan Pathfinder SL
2020 Nissan Pathfinder SV
2021 Chevrolet Equinox L
2021 Chevrolet Equinox LS
2021 Chevrolet Equinox LT
2021 Chevrolet Equinox Premier
2021 GMC Terrain Denali
2021 GMC Terrain SL
2021 GMC Terrain SLE
2021 GMC Terrain SLT
2022 Chevrolet Equinox LS
2022 Chevrolet Equinox LT
2022 Chevrolet Equinox Premier
2022 Chevrolet Equinox RS
2022 GMC Terrain AT4
2022 GMC Terrain Denali
2022 GMC Terrain SLE
2022 GMC Terrain SLT
2023 Chevrolet Equinox LS
2023 Chevrolet Equinox LT
2023 Chevrolet Equinox Premier
2023 Chevrolet Equinox RS
2023 GMC Terrain AT4
2023 GMC Terrain Denali
2023 GMC Terrain SLE
2023 GMC Terrain SLT
2024 Chevrolet Equinox LS
2024 Chevrolet Equinox LT
2024 Chevrolet Equinox Premier
2024 Chevrolet Equinox RS
2024 GMC Terrain AT4
2024 GMC Terrain Denali
2024 GMC Terrain SLE
2024 GMC Terrain SLT
2025 Chevrolet Equinox ACTIV
2025 Chevrolet Equinox LT
2025 Chevrolet Equinox RS
2025 GMC Terrain Elevation
2026 Chevrolet Equinox ACTIV
2026 Chevrolet Equinox LT
2026 Chevrolet Equinox RS
2026 GMC Terrain AT4
2026 GMC Terrain Denali
2026 GMC Terrain Elevation

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: N
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1