We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Front non-electronic air strut assembly silver metal body coiled spring rubber boot

Unity

Unity 18-112900 Front Non-Electronic Air Strut Assembly

SKU CH-WVG4-CTHT2

Front non-electronic air strut assembly fits 2007-2011 Mercedes-Benz GL320, GL350, GL450 and GL550 models excluding adaptive damping suspension

  • Front air strut restores ride height on 2007-2011 Mercedes GL models
  • Non-electronic design fits vehicles without Adaptive Damping Suspension
  • Unity brand backed by over 50 years aftermarket suspension experience
  • Direct replacement for 18-112900 simplifies installation
  • Covers GL320, GL350, GL450 and GL550 model years 2007-2011

Front Non-Electronic Air Strut for GL-Class

This Unity 18-112900 assembly replaces the front air strut on 2007-2011 Mercedes-Benz GL320, GL350, GL450 and GL550 models. It is built for vehicles without Adaptive Damping Suspension. The unit restores factory ride height and load-leveling function.

Upgrade from failed or leaking OE struts

The part replaces original equipment that has developed air leaks, compressor over-cycling or sagging corners. The jump is worth it when the vehicle no longer holds ride height or the compressor runs excessively. Unity’s 50 years of aftermarket experience back the design.

Direct bolt-on installation

The assembly mounts to existing chassis points without modification. No electronic calibration is required because the strut is non-electronic. The most common issue is reusing old air-line fittings that leak; new O-rings and torque to spec prevent comeback repairs.

Highlights

  • Front air strut restores ride height on 2007-2011 Mercedes GL models
  • Non-electronic design fits vehicles without Adaptive Damping Suspension
  • Unity brand backed by over 50 years aftermarket suspension experience
  • Direct replacement for 18-112900 simplifies installation
  • Covers GL320, GL350, GL450 and GL550 model years 2007-2011

Specifications

BrandUNITY

Questions about this item

Does the Unity 18-112900 strut assembly mount to the original front suspension points on a 2009 Mercedes-Benz GL450?

Yes, this non-electronic air strut assembly is designed to fit the front suspension of 2007-2011 GL450 models, using the factory mounting locations without modification.

What is the critical installation step for the air line connection on this non-electronic strut that technicians often overlook?

The air line must be fully seated and the retaining clip securely locked before pressurising the system; an incomplete connection will leak and prevent the strut from inflating.

How often should the air spring bladder on this Unity front strut be inspected for cracking or dry rot after installation?

Inspect the rubber air spring at every oil change or at least once a year; replace the assembly if you see surface cracks, abrasion or signs of air leakage.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.