AUTOSAVER88 1x Front Air Suspension Shock Strut Fit for Mercedes W221 S400 S550 S600 OEM 2213204913 Position:Left or Right, Front.Ensure accurate fit for installation.100% Brand New, ISO / TS 16949 Quality Test - Tested to meet or exceed OEM specifications Autosaver88 brand shock absorber backed by excellent durability, backed by industry-leading warranty .New Air Suspension Bags /Air Bags / Air Ride Bags are built according to the highest standards of quality. Our new, high-quality, passive replacement shock absorbers are designed to maintain the safety and handling of your original vehicle at much lower prices than traders.Reference OEM number:2213204913 , 221320491360 , 221320491380 , 221320491388 , 2213205113 , 221320511360 , 221320511380 , 221320511388 , 2213207313 , 221320731360 , 221320731380 , 221320731388 , 2213209313 , 221320931360 , 221320931380 , 221320931388 , 2213209713 , Note: Please double confirm the Part/OEM number whether it is fit your car Fit for: 2012 Mercedes-Benz S350 2010-2012 Mercedes-Benz S400 2007-2012 Mercedes-Benz S550 2007-2012 Mercedes-Benz S600 2008-2012 Mercedes-Benz S63 AMG 2007-2012 Mercedes-Benz S65 AMG (Models without 4 Matic or Active Body Control) Use old shock absorbersThe car turns over The car is understeer Use a new shock absorber:The curved road is more stable and comfortable