1 PC Air Suspension Shock For Mercedes W221 S550 S450 CL550 S350 S400 Rear Left

What is 1 PC Air Suspension Shock For Mercedes W221 S550 S450 CL550 S350 S400 Rear Left?

This air suspension shock is a complete, ready-to-install Airmatic spring strut assembly designed specifically for the rear left (driver side) of select Mercedes-Benz W221 chassis vehicles. Engineered as a direct-fit replacement, it restores proper ride height, handling, and comfort to luxury sedans and coupes equipped with air suspension. Compatible with models including the S550, S450, CL550, S350, S400, and S600 from 2007–2013, this unit is intended for vehicles without Active Body Control (ABC), ensuring accurate fitment and function. Manufactured to match OEM specifications, it eliminates sagging, uneven stance, and bumpy rides caused by worn or failed air struts.

Key features

• Direct Fit — Replaces OEM part 221-320-55-13 on rear left side.
• No ABC Required — Designed for W221 models without Active Body Control.
• Pre-Assembled — Complete strut unit ready for installation.
• Tool-Free Upgrade — No special tools needed for replacement.
• Brand New — Not remanufactured or refurbished.
• Wide Compatibility — Fits multiple Mercedes S-Class and CL-Class models 2007–2013.
• Driver Side Specific — Correctly positioned for left rear installation.

Who is 1 PC Air Suspension Shock For Mercedes W221 S550 S450 CL550 S350 S400 Rear Left for?

This product is ideal for Mercedes-Benz owners experiencing rear suspension sag, uneven ride height, or air leak symptoms in their W221 platform vehicles. It’s best suited for DIY mechanics with basic automotive skills and tools, as well as professional technicians seeking a reliable, cost-effective alternative to dealership parts. Drivers of luxury models like the S550 or CL550 who prioritize ride comfort and vehicle stability will benefit most from this upgrade.

How does 1 PC Air Suspension Shock For Mercedes W221 S550 S450 CL550 S350 S400 Rear Left compare?

Compared to standard polypropylene shocks or generic aftermarket struts, this Airmatic-specific unit maintains the intelligent, adaptive ride quality Mercedes is known for. Unlike remanufactured or recycled air struts, this is a brand-new assembly, reducing the risk of premature failure. It offers better value than OEM dealer replacements while ensuring compatibility and performance on par with original equipment, especially for non-ABC equipped W221 models.