SUNCORE OFFERS FREE SHIPPING ON ALL SUSPENSION PARTS WITHIN THE LOWER 48 STATES

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

Key Features:
  • Saves You Money Compared To OEM/Dealer Prices
  • Installation Instructions Included
  • Regain The New Car Feel
  • 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, 2 Rear Coil Springs

Exclusions:
INCL. FRONT COIL OVER GAS STRUTS,INCL. REAR COIL SPRINGS & MOUNTING HARDWARE
$405.90
Brand
Suncore
Part Number 129M-31-4
Condition New
Ships Within 1-2 Business Days
This item qualifies for FREE UPS Ground Shipping
Suncore’s Front and Rear Air Spring to Coil Spring Conversion Kit Part 129M-31-4 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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SPECIFICATIONS
Position
Front
WARNING CA Proposition 65
No
Position
Rear
WARNING CA Proposition 65
No
Suncore

 

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.


SHIPPING POLICIES
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
UPS DOES NOT DELIVER ON SATURDAY NOR SUNDAY


SHIPMENT TRANSIT TIMES
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

4.8 out of 5 stars
15 total ratings
Verified Buyer
I got this kit for my 2009 GL450 and I’ve had it installed for just about two years now. My overall impression is that they’re okay. If I could go back I’d probably just fix my air suspension. The front struts sag almost as much as my leaky air suspension did and the ride is pretty rough because of this. Even though it’s rough, the peace of mind that I’m not going to be sitting completely on my axles because of a blown air suspension is nice I guess.
Reviewed on 10/24/2023
Verified Buyer
Great product and best prices compared to other brand
Reviewed on 2/3/2021
Verified Buyer
Great product, easy to install....Will order again...Thanks for your products !!!!
Reviewed on 1/10/2021
Verified Buyer
Worked as described
Reviewed on 1/10/2021
Verified Buyer
My vehicle now is more stable and sits a bit higher. The ride feels better also. No more expensive air components for me!
Reviewed on 10/28/2020
Verified Buyer
Does what it needs to do. Haven’t felt any difference between this and the airmatic system, and best of all no more expensive repairs to the airmatic.
Reviewed on 10/6/2020
Verified Buyer
Been on there for over a year now (GL450) and not a single problem or noticeable difference from the expensive air ride!
Reviewed on 9/29/2020
Verified Buyer
Performed excellent very smooth ride hardly can tell a difference between the new coil overs versus the original airbag setup
Reviewed on 9/24/2020
Verified Buyer
Works great. Easy changeover
Reviewed on 9/23/2020
Verified Buyer
Excellent ride quality & price.
Reviewed on 9/18/2020
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Airmatic Air to Coil Spring and Strut Suspension Conversion Kit - GL & ML Class

Will this suspension set up cause and check engine lights on in the dash? If so, are there any modules that will correct that. Will this set up not work if I have ADS? As far as I’m aware, all GLs came with airmatic and damping, either with a button or automatically with different driving habits. Thank you

Customer Service

Hello, This kit will come with a complete set of install instructions and in those instructions there will be two options to fool the system into not setting the warning lights. The kit will not work with the ADS models, there are GL models that have air suspension but no active dampening unfortunately this kit wont work for the ADS as we do not have a module that will bypass the dampeners at this time if you have any further questions please feel free to ask Thank you


Hi What is after core rebate ?

Customer Service

Hello, Thank you for reaching our regarding core rebates. For this kit we offer a $80 core rebate for your front struts. A prepaid label will be included with the box. Hope this answered your question, have a good day!


Can you just replace the front struts only and still keep the rear original?

Customer Service

Hello, Yes, you can convert just the front suspension. You will not be able to disable your air suspension however and it will trigger a dash light. I would recommend a full conversion (to disable air and light) or updating your OE parts.


You have gl450 2007 conversiin kit suspension ?

Customer Service

Mancio, Yes we do have a conversion, however we are currently out of stock. Part number: 129M-31-4 priced at $439 is what you will want. We can set you up for an email when the part is back in stock. Let us know if you need anything else!


When you do thus conversion will this take care of the warning lights that will come on in the GL....I heard that these kits do their jobs but you will have to look at a warning light for the rest of the time you own your car.....


ADS models...how can I find out if my GL is an ADS model? So that the kit will work


2004 E500 Mercedes Benz AWD I’m looking for 2 front shocks let me know

Customer Service

Thank you for reaching out, we do have the front air shocks available if that's what you need, it part # 126M-28-F-PAIR or follow the link below to be directed to the listing. https://suncoreindustries.com/product/21452/front-pair-air-suspension-strut-assemblies-for-mercedes-e-class-w211-4matic


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