Firestone Coil-Rite: 4135 Rear Kit






Maintain a balanced load and a smooth ride. Get Coil-Rite air springs for your Lexus or Toyota.

Available To Purchase Online
Where To Buy

Details & Benefits

  • Designed to work in temperatures between -40˚F (-40˚C) and 180˚F (82˚C)
  • Easily control air pressure in the air springs for varying loads and conditions
  • Spring performance can be altered as easily as inflating a tire
  • Made of durable, elastic polyurethane
  • Fill kit

    fill kit


  • load capacity

    load capacity


  • installation


    No Drill

  • in-bed hitch


    Not Compatible

  • min. air pressure

    minimum air pressure

    5 PSI

  • max air pressure

    maximum air pressure

    35 PSI

  • install time

    install time

    1 HOUR(s)

Air Accessory Systems

2158 Single Level Analog Standard Duty 2497
2178 Dual Level Analog Standard Duty 2497
2097 Single Level Analog Heavy Duty 2497
2219 Dual Level Analog Heavy Duty 2497
2543 Single Level Analog Heavy Duty With Tank 2530
2549 Single Level Analog Extreme Duty With Tank 2530
2610 Single Point Wirless (App Only) Light Duty 2612

Vehicles Compatible with 4135


LX 570 (2013-2018)

2013 LX 570
2014 LX 570
2015 LX 570
2016 LX 570
2017 LX 570
2018 LX 570

4 Runner 2WD, 4WD (1998-2022)

1998 4 Runner 2WD, 4WD
1999 4 Runner 2WD, 4WD
2000 4 Runner 2WD, 4WD
2001 4 Runner 2WD, 4WD
2002 4 Runner 2WD, 4WD
2003 4 Runner 2WD, 4WD
2004 4 Runner 2WD, 4WD
2005 4 Runner 2WD, 4WD
2006 4 Runner 2WD, 4WD
2007 4 Runner 2WD, 4WD
2008 4 Runner 2WD, 4WD
2009 4 Runner 2WD, 4WD
2010 4 Runner 2WD, 4WD
2011 4 Runner 2WD, 4WD
2012 4 Runner 2WD, 4WD
2013 4 Runner 2WD, 4WD
2014 4 Runner 2WD, 4WD
2015 4 Runner 2WD, 4WD
2016 4 Runner 2WD, 4WD
2017 4 Runner 2WD, 4WD
2018 4 Runner 2WD, 4WD
2019 4 Runner 2WD, 4WD
2020 4 Runner 2WD, 4WD
2021 4 Runner 2WD, 4WD
2022 4 Runner 2WD, 4WD

FJ Cruiser 2WD, 4WD (2007-2014)

2007 FJ Cruiser 2WD, 4WD
2008 FJ Cruiser 2WD, 4WD
2009 FJ Cruiser 2WD, 4WD
2010 FJ Cruiser 2WD, 4WD
2011 FJ Cruiser 2WD, 4WD
2012 FJ Cruiser 2WD, 4WD
2013 FJ Cruiser 2WD, 4WD
2014 FJ Cruiser 2WD, 4WD

What's Included

Everything is included for a quick, easy installation.

  • Air springs
  • Hardware
  • Air line and separate valves for manual inflation, the same as you would use for inflating a tire

Optional air accessories are available for all applications. 

Additional Info

Difficult roads and challenging loads are a reality of life. Firestone Coil-Rite air springs put you in control of your SUV's response. Coil-Rite technology balances your Lexus/Toyota to assist in better handling and braking, even when hauling a heavy load or dealing with adverse road conditions. As a result, Coil-Rite SUV air springs also help reduce tire wear and level your headlight beams.
Coil-Rite air springs are designed for SUVs with coil spring suspensions. They sit within the existing coil springs to produce a variable spring rate. A variable spring rate means you'll experience a higher spring rate in loaded conditions and a slower spring rate in unloaded conditions. The result? A steadier ride for your passengers, and more support and control when you take on a new path.
 Is Firestone Coil-Rite installation pretty straightforward? It sure is.  Lexus/Toyota Coil-Rite air spring kits come with all the necessary parts for a speedy, trouble-free installation. Install times average less than two hours, and a majority of Firestone Coil-Rite SUV kits do not require drilling. Coil-Rite springs are made from elastic polyurethane and fasten to your  Lexus/Toyota's current spring seats. Air tanks, air compressors, switches, and gauges can be bought separately. Purchase the right air accessories for your  Lexus/Toyota to inflate and deflate your SUV air springs from the comfort of your cab.
Once installed, your  Lexus/Toyota Coil-Rite air helper springs can be adjusted manually with individual inflation valves to support a smooth ride and balanced load distribution. Maintaining a balanced load lessens body roll to enhance vehicle stability. By absorbing road shock and softening the interaction between your SUV's axles and frame, Coil-Rite air springs help prevent bottoming out.
And with Coil-Rite air springs, you don't have to worry about shifting seasons standing in your way of a job well done. Firestone Coil-Rite air springs were made to function in temperatures between -40F (-40C) and 180F (82C). Head north or south— take your  Lexus/Toyota in any direction, any time.
 Lexus/Toyota Coil-Rite air springs support 500 - 2,100 lbs. per set but will not increase your SUV's weight-carrying capacity. Check  Lexus/Toyota's recommended weight limit before towing or hauling any load.
Visit your closest Coil-Rite retailer and buy a  Lexus/Toyota Firestone Coil-Rite air spring kit today.

How Can We Help You?

Please contact us for more information on how to improve the comfort of your ride.