Firestone Coil-Rite: 4134 Rear Kit






Designed for SUVs with coil spring suspensions. Coil-Rite air springs level your Ford Expedition and improve road handling.

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 4134


Expedition 2WD, 4WD (1997-2002)

Exception Warning 2WD With rear coil springs only
4WD With rear coil springs only
1997 Expedition 2WD, 4WD
1998 Expedition 2WD, 4WD
1999 Expedition 2WD, 4WD
2000 Expedition 2WD, 4WD
2001 Expedition 2WD, 4WD
2002 Expedition 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

There's no such thing as a perfect load or perfect road conditions. That's why Firestone makes Coil-Rite air springs. Coil-Rite levels your Ford Expedition to help support more effective braking and handling, even when hauling a heavy load or dealing with adverse road conditions. In turn, Coil-Rite 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 fit inside the existing coil springs to generate a variable spring rate. Variable spring rates offer a slower spring rate in unloaded conditions and a higher spring rate in loaded conditions. The result? A smoother ride for you and your passengers, and more support and control while you drive.

Is Firestone Coil-Rite installation easy? Yes. Your Ford Expedition Coil-Rite air spring kit includes everything you need for a quick, easy installation. Install time averages one to two hours, and most Firestone Coil-Rite kits are no-drill. Coil-Rite springs are made from elastic polyurethane and attach to your Ford Expedition's existing spring seats. Note that gauges, switches, air compressors, and air tanks are sold separately. Purchase the right air accessories for your Ford Expedition to inflate and deflate your SUV air springs from the comfort of your cab.

Once installed, your Ford Expedition Coil-Rite air springs are easy to adjust so you can maintain even load distribution and ride comfort. A centered load reduces 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. Coil-Rite air springs were designed to work in temperatures between -40F (-40C) and 180F (82C). North or south, summer or winter— take your Ford Expedition where you want.

Ford Expedition Coil-Rite air springs support 500 - 2,100 lbs. per set but will not increase your SUV's weight-carrying capacity. Check Ford's recommended weight limit before towing or hauling any load.

How Can We Help You?

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