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Product Details

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Kit Class: Premium Warranty: Lifetime

Convert Your Air Suspension To A Coil Spring Suspension. End Your Air Suspension Problems Forever...

Strutmasters 1998-2004 Cadillac Seville 4 Wheel Air Suspension Conversion Kit is the perfect solution to your air suspension problems. Designed to be very affordable, you can convert your air suspension to use standard shocks/struts and coil springs for less than the price of replacing one air strut.

Conversion Kit Features

  • Saves Money
  • All New Components
  • Improved Ride
  • More Reliable Than Air Suspensions
  • No Modifications Required To Install
  • Easy To Install

Air Suspension Conversion Kit Includes

  • All Necessary Hardware
  • 2 Pre-Assembled Complete Front Strut Assemblies Including Eibach Springs And Mounts
  • 2 Rear Eibach Coil Springs
  • 2 Rear Shock Absorbers with new bushings
  • Detailed Instructions

This Conversion Kit Fits

1998 Cadillac Seville, 1999 Cadillac Seville, 2001 Cadillac Seville, 2002 Cadillac Seville, 2003 Cadillac Seville, 2004 Cadillac Seville

Product Notes

  • If You Want A Smooth Ride, Without Ride Height, and Noise Issues, This Is The Kit you Need
  • If the suspension warning light is currently on, call 866-597-2397 for more information prior to installation.
  • IMPORTANT:FRONT: If the sway bar link does NOT connect to the strut, this is the correct conversion kit for your Cadillac Seville.
  • IMPORTANT:REAR: If the original air shocks use the butterfly style mount on the bottom of the shock & requires 2 bolts to secure the bottom mounts, this is the correct conversion kit for your Seville.
  • Fits 4.6L Northstar Models Only!

Price Comparison

How Does Strutmasters Measure Up?

After Market Replacement Parts:

+ Coil Springs ($189/spring)
+ Shocks ($244/Shocks)
+ Struts ($234/Struts)
+ Compressor ($244/Compressor)
= TOTAL: Over $1,660 (and that doesn’t even include replacing electronic components that are known to fail such as the height sensors).

Strutmasters Conversion Kit:

+ 2 Pre-Assembled complete front strut assemblies including Eibach springs and mounts
+ 2 Proper Rate Eibach Coil Springs With Mounting Hardware
+ 2 Premium Rear Shocks
+ Detailed Installation Instructions
+ Over-The-Phone Technical Support And A Limited Lifetime Warranty =

  • Our Price: $699.00!

Additional Info

Learn why Strutmasters is the best choice for your new kit.

long-icon-questionWhy Choose Strutmasters?

Why choose the Conversion Kit over replacing the air suspension system on your 1998-2004 Cadillac Seville Deluxe?

Strutmasters' air to non-air suspension conversion kit saves Cadillac Seville owners time, money, and frustration when the original air suspension system goes bad. The kit, manufactured in the USA, includes two pre-assembled front struts with premium springs, two premium rear Eibach springs, and two premium rear shock absorbers. The quality parts are more reliable than the originals; they even come with Strutmasters' Lifetime Limited Warranty. Each kit comes with detailed instructions and online installation videos that help customers get it installed in as little as one hour per wheel. ASE certified experts are on hand to provide additional technical support. And finally, the kit costs a fraction of the price of dealership direct replacement. It's no surprise that the majority of Seville owners switch to non-air suspension using Strutmasters' coilover conversion kit.

long-icon-xIs Your Suspension Failing?

How do I know if my 1998-2004 Cadillac Seville Deluxe Air Suspension is failing?

Some symptoms of a failed or leaking air suspension system are more obvious than others. Early diagnosis of a bad suspension in the 2000-2004 Cadillac Seville is critical to the vehicle's health. Look for a sudden variance in the Seville's ride height. There may be one sagging end or one overly-inflated side. A “squatting down” appearance is another major red flag. If these imbalances are not fixed in a timely fashion, the air compressor will wear out. Once this occurs, a suspension warning light will illuminate on the dash. To avoid a costly repair, the Seville owner should have any air compressor or ride height issue fixed as soon as it presents itself.

long-icon-gearVehicle Components

What kind of suspension does my 1998-2004 Cadillac Seville Deluxe have?

The 2000-2004 Cadillac Seville is built with the following suspension components:

2000-2004 Cadillac Seville Shock Absorbers (x2)- a metal tubing filled with gas-charged hydraulic fluid that is connected to the wheel of a vehicle in order to reduce the effects of vertical travel on a rough surface which controls the bounciness, and therefore comfort, of a vehicle.

2000-2004 Cadillac Seville Electronic Struts (x2)- a type of shock absorber; has metal tubing filled with gas-charged hydraulic fluid that is connected to the wheel of a vehicle in order to reduce the effects of vertical travel on a rough surface which controls the bounciness, and therefore comfort, of a vehicle. The Cadillac Seville’s struts, while having coil-springs, use an electronic signal to stiffen or soften the dampening of the strut.

2000-2004 Cadillac Seville Coil Springs (x2)- Coil springs hold the vehicle up but be careful, they are rated for and designed to work with the rest of the suspension system, so when you change air shocks to passive shocks, then you will need a different rated coil spring that works well with the new type of shocks.

2000-2004 Cadillac Seville Height Sensors (x2)- a linkage located near each wheel of a vehicle with any electronic suspension that, either mechanically or electronically, constantly measures the height of the vehicle, and reports this information back to the control module so that the computer can identify if changes in height need to be adjusted accordingly. The ride height sensor is a moving part, and like all moving parts, they will eventually wear out.

2000-2004 Cadillac Seville Air Lines- tubes that run from a compressor (air suspension) to the air struts which carry pressurized air to the air bags components in order to adjust the height of the vehicle, respectively.

2000-2004 Cadillac Seville Solenoids (x4)- usually L-shaped, these plastic components connect the electrical connection and lines of suspension components to the suspension control module on vehicles with active suspension. The solenoid regulates the air pressure for each air spring. Solenoids start to leak as they wear out causing the vehicle to sag or to lean. This will cause the ride height sensor to send a signal to activate the compressor in an attempt to inflate the air suspension and level out the vehicle. This excessive work load will eventually lead to total failure of the compressor.

2000-2004 Cadillac Seville Compressor- creates/sends pressurized to active suspension components. When the air suspension starts leaking, the compressor/pump starts working harder to try to keep the system inflated. By the time air suspension leaks down completely, sitting the vehicle on its tires, the compressor will either have failed or be well on its way to full failure. Buying replacement struts and taking the time to install them only to find out the compressor still needs to be replaced can be very frustrating, time-consuming, and expensive.

2000-2004 Cadillac Seville Dryer Assembly- used to keep moisture out of air lines and air springs in order to prevent freezing and internal cracking of these parts. Once air suspension starts leaking, moisture will build-up throughout the air system. Moisture damages the air suspension from the inside. The dryer will need to be replaced in order to eliminate the moisture and prevent any further damage.

2000-2004 Cadillac Seville Suspension Control Module- a computer which is responsible for the operations of the air suspension system and maintaining the vehicle’s correct ride height.

2000-2004 Cadillac Seville O-rings- Although they are the least expensive parts of the air suspension, they are responsible for maintaining the seal where all of the air lines connect. Be sure to replace the O-rings when repairing any air suspension system.

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