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.
Next Business Day: Delivery typically by 10:30 a.m.
2 Business Days: Delivery typically by end of day
1-5 Business Days: Delivery based on distance to destination
Manufactured, Packaged and Shipped in North Carolina, USA
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.
Strutmasters Conversion Kits Save Money, Time and Headaches
2007-2012 Mercedes-Benz GL450 4MATIC 4-Wheel Air Suspension Conversion Kit (MK14G) is the perfect solution to your air suspension problems. Designed to be very affordable, you can convert your air suspension to use standard.
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.
Why Choose Strutmasters Instead Of Those Other Guys
Strutmasters offers a suspension conversion system for the Mercedes-Benz GL450 4Matic saves customers time, frustration, and money. It eliminates the dependence on complicated electrical components for good. The kit, manufactured in America, includes two rear coil springs, two front coilover struts with premium steel coil springs, new mounts, and all necessary hardware. Detailed instructions and installation videos online help customers get the kit installed in as little as one hour per wheel. Each kit comes with Strutmasters' Lifetime Limited Warranty, as well as expertise from our ASE certified technicians. If top-notch customer service and quality parts aren't enough, let the low price of the kit convince you to make the switch. Compared to dealership direct replacement and individual aftermarket parts, Strutmasters' coilover conversion kit is clearly the smartest choice.
How Do I know If My GL450 4MATIC Air Suspension is failing?
If the 2007-2012 Mercedes GL450 4Matic is unable to reach and maintain the proper ride height, it may be suffering from a failed or leaking air suspension system. Early detection of a bad suspension is the key to avoiding total failure, so be on the lookout for the following signs. The most noticeable sign is a sudden uneven height difference between different parts of the GL450. Generally, one end will visibly sag while the other end looks inflated. The vehicle may appear to be squatting down. There may be a shifting lean from one side to the other. Any of these variances in height can wear out the air compressor. If the air compressor has already stopped working, a suspension warning light will turn on. At this point, suspension failure is more advanced and will require an expensive repair or direct replacement.
How does this part compare to OEM parts and other competitive solutions?
+ Front Air Struts (w/Active Dampening System) ($1,080/strut)
+ Rear Air Strut (w/ADS) ($556/strut)
+ Air Compressor Assembly ($420)
+ Pressure Accumulator (w/ADS) ($300)
= TOTAL: Over $3,900 (and that doesn't include replacing electronic components that are known to fail such as the height sensors).
After Market Replacement Parts:
+ Front Air Struts (w/Active Dampening System) ($650/strut)
+ Rear Air Strut ($680/strut)
+ Air Compressor Assembly ($490)
+ Pressure Accumulator ($230)
= TOTAL: Over $3,300 (and that doesn't include replacing electronic components that are known to fail such as the height sensors).
Strutmasters Conversion Kit:
+ (2) Front passive hydraulic fluid struts preloaded with Premium Steel Coil Springs
+ (2) Rear Premium Steel Coil Springs
+ (2) Rear passive hydraulic fluid shocks
+ Detailed installation instructions
+ Over-the-phone technical support and a Limited Lifetime Warranty
Choosing the rear air-suspension conversion kit for the 2007-2012 Mercedes-Benz GL450 4MATIC saves YOU over $1,500!**Prices were quoted directly from an actual Mercedes-Benz Genuine Original Equipment Replacement Parts site, results may vary**
Our Price: 1049!
Suspension Components List
The 2007-2012 Mercedes-Benz GL450 4MATIC is built with the following suspension components:
2007-2012 Mercedes-Benz GL450 4MATIC Air Struts (models with Active Dampening Suspension) (x2)- shocks whose dampening capabilities are controlled by the suspension control module.
2007-2012 Mercedes-Benz GL450 4MATIC Coilover Struts (models without Active Dampening Suspension) (x2)- A type of shock absorber, it is a piece of 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. Coil springs fit around the top portion of the struts and hold the vehicle up, they are rated for and designed to work with the rest of the suspension system.
2007-2012 Mercedes-Benz GL450 4MATIC 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.
2007-2012 Mercedes-Benz GL450 4MATIC Air Springs (x2)- 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.
2007-2012 Mercedes-Benz GL450 4MATIC 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.
2007-2012 Mercedes-Benz GL450 4MATIC Air Lines- tubes that run from a compressor to the air springs, which carry pressurized air to the air bags.
2007-2012 Mercedes-Benz GL450 4MATIC Solenoids (models with Active Dampening Suspension) (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.
2007-2012 Mercedes-Benz GL450 4MATIC 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.
2007-2012 Mercedes-Benz GL450 4MATIC Suspension Control Module- a computer which is responsible for the operations of the air suspension system and maintaining the vehicles correct ride height.
2007-2012 Mercedes-Benz GL450 4MATIC 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.
KNOW WHY WE'RE THE BEST
Strutmasters Didn't Just Perfect the Converison Kit, We Invented the Air Suspension Conversion Kit
More Reliable Than Air Suspensions
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.
No Modifications Required to Install
Our kits don't require any major modifications to your vehicle to install.
The Original Conversion Kit
Strutmasters created the first conversion kit and has spent the past two decades perfecting it.
Engineered and Assembled in the USA
Save time, frustration, and money with our air to non-air suspension conversion a kits. Find the best solution for your vehicle online or have our experts guide you through the process.
ASE-certified Technical Staff
From ASE-certified Master Techs to electrical engineers, you can rest assured that when you buy from us, you have all of our combined education and skill-sets backing your new suspension!
Installation Guides and Videos
Watch easy-to-follow videos on how to easily install our conversion kits yourself. Prefer reading along? We have step-by-step installation guides just for you.
Performance You Can’t Find Elsewhere Made With Premium American-Made Coil Springs
American Made Parts, Unrivaled Quality
Get Your Parts When You Need Them Fast Shipping Guaranteed
Professional Assistance and ASE Certified Tech Support Those Other Guys Don't Offer
Watch & Learn
Watch videos to help you make the right decision when purchasing the best conversion kit for your vehicle.