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Airmatic Front Suspension Air to Coil Spring and Strut Conversion Kit - Mercedes GL & ML Class W164

Key Features:
  • Saves You Money Compared To OEM/Dealer Prices
  • Limited Lifetime Warranty
  • Easy To Install
  • Installation Instructions Included
  • Air Spring To Coil Over Gas Strut
  • Made In The USA
  • Brand NEW
  • Front Suspension Conversion
  • Save Time And Money
  • Regain The New Car Feel
  • Improve Handling
  • No Sacrifice Of Ride height Or Quality
  • Improve Consistency Of Carry Load
  • Reduce Your Vehicle Down Time

Order Includes:
Order Includes: 2 Front Quick Complete Struts

Part Number 129M-31-F
Condition New
Ships Within 1-2 Business Days
This item qualifies for FREE UPS Ground Shipping
Suncore’s Front Air Spring to Coil Spring Conversion Kit Part 129M-31-F for your GL320, GL350, GL450 or GL550 is the perfect upgrade for an aged and failing air suspension system. Our air to coil spring conversion kits are brand new and built to give your GL320, GL350, GL450 or GL550 a more reliable suspension system.
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WARNING CA Proposition 65
Suncore's Complete Strut Assemblies are designed to restore your vehicles original ride and handling characteristics. Built for a Quick install the all In one Strut Assemblies are a powder coated coil spring fitted over a gas charged strut with bearing plates (where applicable), isolators and bumpers already configured for your specific vehicle. Manufactured to OE factory specifications, our complete struts come pre-assembled and ready to be installed. No longer do you need to take apart your old strut and replace a couple of components, never again will you have to use expensive tools to compress the dangerous coil spring.


Suncore Industries was established in 2000 and have been a member of the Automotive Parts Rebuilders Association (APRA) ever since. Our mission began with rebuilding air suspension components and moved quickly into offering better solutions with conventional suspension conversion kits to give our customers the longevity they can rely on.

The most common reason for an air strut failure is due to dry rotting of the air bag. This is something that happens over time, the air bag starts to deteriorate and causes leaks, when this happens the air bag can no longer hold air pressure. A leaking air bag can cause the strut it fits over to fail as well. The second factor of an air strut failure is the strut itself. The strut is pressurized with fluid, and if the strut begins to fail it will no longer have the same pressure to hold the vehicle. If this system begins to fail one visible sign will be that your vehicle will be lower than factory height. If Air Struts are not replaced on time, it will cause an Air Suspension Compressor Failure.

We are happy to offer free UPS ground shipping on all orders to the lower 48 States.

Unfortunately since these parts are quite heavy and large we cannot offer free shipping to Puerto Rico, Hawaii nor Alaska. (We do offer shipping to these areas, but it will be based upon UPS quotations. Please feel free to contact us directly.)

We do not ship to P.O. Boxes nor APO's as UPS will not deliver to these locations.

If you would prefer a different or expedited shipping option, please contact us and we will be glad to work around your needs.

Business hours are Monday to Friday 9am to 5pm EST.

We ship UPS Ground by default
Same-day shipping will be provided for orders placed before 2PM EST
Orders after 2PM EST will be shipped the next business day
Orders on the weekend will be shipped the next business day
Orders on a holiday will be shipped the next business day
Tracking will be provided immediately to the email provided in your order
Signature required is mandatory on any order over $400
Signature required may be requested on orders below $400

Complete strut assembly free shipping ups ground
Please refer to this chart for estimated transit times. We are shipping out of the warehouse in Boynton Beach, Florida zip code 33426

5 out of 5 stars
1 total ratings
Verified Buyer
These are excellent. I would buy again. Got rid of my Mercedes front air shocks, can't tell the difference. Can't beat the price nor quality.
Reviewed on Saturday, 10 Nov 2018
Showing comments 1-1 of 1

Airmatic Front Suspension Air to Coil Spring and Strut Conversion Kit - Mercedes GL & ML Class W164

Is it including bypass module ? How I know my Mercedes GL 350. 2011 had ADS ?

Customer Service

Hello We do not include a bypass tool for this vehicle, the light has to be programmed out using a Star Scanner. Your vehicle will have a button to raise and lower your vehicle for sport or comfort mode. This button is located on your dash board. If you need further help, please let us know! Have a good day. -Stephanie