Keep the front corner of your Mercedes-Benz riding on its factory air suspension with the Unity Automotive Front Air Suspension Strut, MPN 28-113400 (also written 28113400). This front air strut assembly is designed to replace the factory air ride on Airmatic-equipped models and installs as a direct fit for the listed applications, with no modifications necessary. It is built for vehicles with Airmatic and excludes 4Matic (AWD).
Direct-fit design: engineered to drop in on the listed applications without modifications.
Aircraft-grade aluminum: constructed with aircraft-grade quality aluminum.
Premium air components: uses premium air sleeves and bladders, with coverage for both electronic and standard air struts.
Zero Defect Policy: backed by Unity Automotive's Zero Defect Policy so you can buy with confidence.
An air suspension strut supports and dampens the front corner while maintaining ride height through its air spring. Common signs the original may need replacing include sagging or uneven ride height, a suspension warning light, or the compressor running frequently — diagnose the cause before replacing. If a failed front air strut is the issue, this assembly replaces it.
Fitment: 1999 Mercedes-Benz S320 · 2006 Mercedes-Benz S350 · 2000-2006 Mercedes-Benz S430 · 2000-2006 Mercedes-Benz S500 · 2001-2006 Mercedes-Benz S600. See the Buyer's Guide tab to confirm your vehicle.
Interchange: AS-2605 · 4J-2000S · 949-860 · AS-7333
AS2605 · 4J2000S · 949860 · AS7333 · 2203202438 · 220320243880 · 2203205113
This part cross-references / interchanges with the following part numbers:
AS-2605, 4J-2000S, 949-860, 2203202438, 220320243880, 2203205113, AS-7333
