We Invented the Air Suspension Conversion Kit
in the USA
Technical Staff
and Videos
These are the components and materials you can expect to find shipped with your new purchase.
All of our products have shipping options available to guarantee you get your part in a timely and affordable manner.
All of our conversion kits are manufactured, packaged and shipped from our warehouse right here in Roxoboro, NC, USA. We believe in providing the highest quality parts, such as premium american-made coil springs, to ensure our customers only need to buy the right product once.
Our Conversion Kits are built to improve the performance and stability of your ride. Converting to a non-air suspension system gives you a more reliable ride.
Our kits don't require any major modifications to your vehicle to install.
Only Strutmasters offers premium american-made coil springs on our conversion kits. Notice the difference with a better, smoother ride!
All of our kits come with easy to install instructions so you or your mechanic can get your car up and running faster than ever.
When one component of the E550 air suspension system stops working, the entire system follows suit. Strutmasters' air to non-air suspension conversion kit eliminates this reliance on complicated electrical parts for good. The kit, made in the USA, comes complete with two pre-assembled front coilover struts using coil springs, two coil springs with mounts, and two passive hydraulic fluid and gas shocks for the rear. Customers appreciate the detailed instructions and online installation videos that help them get the kit installed in about one hour per wheel. The quality parts are more reliable than the originals, and Strutmasters' guarantees that with a Lifetime Limited Warranty. This is a direct replacement- no modifications are needed before it's installed. Our ASE certified technicians are on hand to answer any questions you may have, too. Lastly, this kit is a fraction of the cost of dealership direct replacement and individual aftermarket part replacement. It's easy to see why the majority of E550 4Matic Wagon owners switch from air to non-air suspension using our kit.
If the 2003-2009 Mercedes-Benz E550 4Matic Wagon is unable to reach and maintain the proper ride height, it may have a failed or leaking air suspension system. Look for these common signs that indicate the suspension is going bad. Any variance in ride height is a red flag. For example, one sagging end, one inflated end, a squatting appearance, or a shifting lean from one side to the other are all indicators of a bad suspension. If not fixed promptly, these imbalances will wear out the air suspension system. As a result, a suspension warning light will turn on. Advanced suspension failure is very expensive to repair.
How does this part compare to OEM parts and other competitive solutions?
$3,951
in Savings
79%
Less Than Dealer
+ Front Air Strut Assemblies ($1,200/strut)
+ Rear Electronic Shocks ($180/shock)
+ Rear Air Spring ($970/spring)
+ Air Compressor Assembly ($310)
= Over $5,000 (and that doesn’t even include replacing electronic components that are known to fail such as the height sensors).
+ Front AirStrut Assemblies ($1,200/strut)
+ Rear Electronic Shocks ($380/shock)
+ Rear Air Spring ($310/spring)
+ Air Compressor Assembly ($310)
= Over $4,000 (and that doesn’t even include replacing electronic components that are known to fail such as the height sensors).
+ (2) Completely pre-assembled coil-over struts using coil springs
+ (2) coil springs for the rear
+ (2) Rear passive hydraulic fluid shocks
+ Detailed installation instructions
+ Over-the-phone technical support and a Limited Lifetime Warranty
Choosing the conversion kit for the 2003-2009 Mercedes Benz E550 (4MATIC Wagon) saves YOU over $3,800!
The 2003-2009 Mercedes Benz E550 (4MATIC Wagon) is built with the following suspension components:
2003-2009 Mercedes Benz E550 (4MATIC Wagon) Electronic Shocks (x2)- shocks abosrbers whose dampening capabilities is controlled by the suspension control module in order to ensure proper wheel-to-ground contact.
2003-2009 Mercedes Benz E550 (4MATIC Wagon) Air Springs (x4)- (models with air suspension only) commonly referred to as air bags, a plastic and rubber bag that is fitted on top of the strut that uses pressurized air as a cushion instead of a metal coil spring to hold a vehicle off of the ground and off of its wheels. These are the number one cause of all air suspension leaks. All air springs all go bad at about the same rate. If one is leaking, the others will not be far behind. For a proper repair, all of them need to be replaced at the same time..
2003-2009 Mercedes Benz E550 (4MATIC Wagon) 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 air spring assembled on top of the strut is commonly referred to as an air strut.
2003-2009 Mercedes Benz E550 (4MATIC Wagon) Height Sensors (x4)- 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.
2003-2009 Mercedes Benz E550 (4MATIC Wagon) Air Lines- tubes that run from a compressor to the air struts which carry pressurized air to the air bags.
2003-2009 Mercedes Benz E550 (4MATIC Wagon) 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.
2003-2009 Mercedes Benz E550 (4MATIC Wagon) Compressor Assembly- creates/sends pressurized air 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.
2003-2009 Mercedes Benz E550 (4MATIC Wagon) Suspension Control Module- a computer which is responsible for the operations of the air suspension system and maintaining the vehicles correct ride height.
2003-2009 Mercedes Benz E550 (4MATIC Wagon) 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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