Coil-Rite® Air Helper Spring Kit
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Coil-Rite® Air Helper Spring Kit

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ds_FIR4135
In stock
$204.95
If you're looking for a smoother ride for your vehicle that has a coil spring suspension,...
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$204.95

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 180 °F (82 °C) and -40 °F (-40 °C).

Installation Instructions

Installation Instructions



This fits:

Year Make Model Submodel Notes
2013-2016 Lexus LX570 Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2017-2018 Lexus LX570 Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required
1998 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
1998 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
1999 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
1999 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2000 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2000-2002 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2003 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2003 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2004 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2004 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2005 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2005 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2006 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2006 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2007 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2007 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2008 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2008 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2009 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2009 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2010 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2010-2017 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours
2019,2021 Toyota 4Runner Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required
2018 Toyota 4Runner Base Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required
2018,2020 Toyota 4Runner Limited Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required
2020 Toyota 4Runner Nightshade Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required
2018,2020 Toyota 4Runner SR5 Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required
2020 Toyota 4Runner SR5 Premium Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required
2018,2020 Toyota 4Runner TRD Off-Road Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required
2020 Toyota 4Runner TRD Off-Road Premium Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required
2018,2020 Toyota 4Runner TRD Pro Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required
2020 Toyota 4Runner Venture Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required
2007-2014 Toyota FJ Cruiser Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required; Install Time 2 Hours


Associated Comments Checking for Leaks
Associated Comments Ensuring there is enough clearance for your Air Spring installation
Associated Comments How to install a Fuse Tap
Associated Comments Installation of Firestone Ride-Rite, Coil-Rite, and Sport-Rite Air Springs
Associated Comments Jack stands can help with Air Spring installation
Associated Comments Marking your Air Spring can ensure proper alignment during installation
Associated Comments Ride-Rite Air Springs Benefits
Associated Comments Use a Tubing Cutter to ensure a clean and square cut
Description Coil-Rite® Air Helper Spring Kit
Description_ASC Checking for Leaks
Description_ASC Ensuring there is enough clearance for your Air Spring installation
Description_ASC How to install a Fuse Tap
Description_ASC Installation of Firestone Ride-Rite, Coil-Rite, and Sport-Rite Air Springs
Description_ASC Jack stands can help with Air Spring installation
Description_ASC Marking your Air Spring can ensure proper alignment during installation
Description_ASC Ride-Rite Air Springs Benefits
Description_ASC Use a Tubing Cutter to ensure a clean and square cut
Description_CAP Coil-Rite® Logo
Description_CAP Firestone Ride Rite Warranty
Description_CAP Firestone Ride-Rite Tech Tip 1 - Jack Stands
Description_CAP Firestone Ride-Rite Tech Tip 2 - Spring Marking
Description_CAP Firestone Ride-Rite Tech Tip 3 - Spring Clearance
Description_CAP Installation of Firestone Ride-Rite Air Springs
Description_CAP Ride-Rite Air Springs
Description_CAP Ride-Rite Tech Tip 4 - Fuse Tap Installation
Description_CAP Ride-Rite Tech Tip 5 - Tubing Connection
Description_CAP Rite-Rite Tech Tip 6 - Leaks
Description_DES Coil-Rite® Air Helper Spring Kit
Description_EXT Coil-Rite® Air Helper Spring Kit; Rear; Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required;
Description_FAB Improve Braking Effectiveness
Description_FAB Improve Braking Effectiveness
Improve Steering And Balance
Increase Vehicle Stability
Keep Headlights Aimed On The Road
Maintain A Level Vehicle
Prevent Bottoming Out
Reduce Tire Wear
Description_FAB Improve Steering And Balance
Description_FAB Increase Vehicle Stability
Description_FAB Keep Headlights Aimed On The Road
Description_FAB Maintain A Level Vehicle
Description_FAB Prevent Bottoming Out
Description_FAB Reduce Tire Wear
Description_MKT 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 180 °F (82 °C) and -40 °F (-40 °C).
Description_SHO SuspLoadLvlingKt
Dimensional Weight 0
Extended Description Coil-Rite® Air Helper Spring Kit; Rear; Incl. Air Helper Springs; Supports; Hardware; Air Line; And Inflation Valves; No Drilling Required;
Features & Benefits Improve Braking Effectiveness
Features & Benefits Improve Braking Effectiveness
Improve Steering And Balance
Increase Vehicle Stability
Keep Headlights Aimed On The Road
Maintain A Level Vehicle
Prevent Bottoming Out
Reduce Tire Wear
Features & Benefits Improve Steering And Balance
Features & Benefits Increase Vehicle Stability
Features & Benefits Keep Headlights Aimed On The Road
Features & Benefits Maintain A Level Vehicle
Features & Benefits Prevent Bottoming Out
Features & Benefits Reduce Tire Wear
Manufacturer Firestone/Ride Rite
Manufacturer Label Coil-Rite(R) Air Helper Spring Kit
Manufacturer Part Number 4135
mfr_label Coil-Rite(R) Air Helper Spring Kit
Position on Vehicle Rear
Quality Quality - Coil-Rite(R) Air Helper Spring Kit
Short Description SuspLoadLvlingKt
weight 2.5
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