Airmatic Suspension Air to Coil Spring & Strut Conversion Kit - W220 Mercedes S Class

Key Features:
  • Saves You Money Compared To OEM/Dealer Prices
  • Limited Lifetime Warranty
  • Installation Instructions Included
  • Brand NEW
  • 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 Quick Complete Struts

Part Number 134M-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 134M-31-4 for your S350, S430, S500 or S600 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 S350, S430, S500 or S600 a more reliable suspension system.
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Arnott Industries: C-2242
CARDONE New: 4J-2000K
Product Grade
Special Note
Engineered for a Superior Fit and Trouble-Free Installation
Product Grade
Special Note
Engineered for a Superior Fit and Trouble-Free Installation


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

4.9 out of 5 stars
7 total ratings
Verified Buyer
Excellent shocks fir my Benz, still awaiting my military discount refund. My Id was sent at the time if my purchase
Reviewed on 12/28/2020
Verified Buyer
Price was great, installation of all 4 took less than four hours and I am a novice. No more warning lights on the dash and I saved over $6000.00 on the dealer recommended overhaul. I will buy these coil overs again if I ever need them!
Reviewed on 11/10/2020
Verified Buyer
I bought this shocks a couple of months ago, i just had the time to install them myself and they're great, I really really recommend this shocks conversion to you guys for this price is unbeatable. you money is worth it, I do hope this review help the future buyers.
Reviewed on 9/26/2020
Verified Buyer
great product great price great alternative
Reviewed on 9/23/2020
Verified Buyer
This is the best decision I could have made for my car it !!! Thanks suncore glad you are here to help out regular ole people with Mercedes Benz over engineering cars
Reviewed on 9/22/2020
Verified Buyer
Reviewed on 8/30/2019
Verified Buyer
Good so far
Reviewed on 6/10/2019
Showing comments 1-7 of 7

Airmatic Suspension Air to Coil Spring & Strut Conversion Kit - W220 Mercedes S Class

I am about to purchase this kit, but before I do, I would like to know how this kit disables the airmatic error light. Thank you.

Customer Service

Hello, This kit is designed with built in resistors on each shock so the strut will be a plug and play install that each strut will fool the system into seeing the active dampeners are present and functional so as long as all the other components in the system are still plugged in and working there will be no warning light after the conversion Thank you

I m having W220 year 2001, pls tell me if this kits is suitable for my car...

Customer Service

Hello, Yes this is compatible with a 2001 W220. Let us know if you have further questions about this kit, have a good day! -Stephanie

Are the rear ones coils or air? It looks on the picture it has air bags.

Customer Service

This is a full coil conversion, there is just a dust boot over the springs. I hope this helps! -Roy

I'm interested in purchasing a system for a w220 Mercedes. I read that there are resistors on the shocks to fool the computer, but what about the air lines to the original shocks?

Customer Service

Please note these Only work with the RWD Models, EXCLUDES THE 4MATIC (AWD MODELS)m and yes, these come with the cannister with the bypass built into the struts, when you connect the ADS cable, it does the bypass for you, and they will have all the easy installation instructions with the package. Regards, Marcelo

What is the ride height? How high does it sit, I live in the north and the winters here are rough. I want it to sit like factory style. THank You