Bilstein 44-109486 Air Suspension Strut - Rear Right

Bilstein B4 Rear Right Air Strut

The Bilstein B4 OE Replacement (Air) rear right air suspension strut is built for European vehicles that need a direct-fit replacement for the original air suspension damper. This Bilstein Shock Absorbers part number 44-109486 restores factory-style ride control and connects to the original vehicle connectors for modification-free installation.

Key Features

• Bilstein B4 OE Replacement (Air) series for factory-style air suspension service
• Monotube internal design for consistent damping response
• Black paint finish
• Direct connection to original vehicle connectors
• Rear right position
• Part number 44-109486

Product Details

Bilstein’s B4 OE Replacement (Air) line is aimed at replacing original air suspension dampers on many European vehicles while maintaining the vehicle’s original feel. As an OE supplier for air suspension systems, Bilstein builds this rear right strut to meet manufacturer-level expectations for fit and function. It is a strong match for Mercedes-Benz CL550, CL600, S350, S400, and S550 applications listed below, including 2007-2014 Mercedes-Benz S550 rear right and 2009-2014 Mercedes-Benz CL550 rear right. This Bilstein 44-109486 air suspension strut is a direct replacement for the original unit.

Vehicle Fitment

• Fits 2009-2014 Mercedes-Benz CL550, rear right, B4 OE Replacement (Air)
• Fits 2012-2014 Mercedes-Benz CL600, rear right, B4 OE Replacement (Air)
• Fits 2012-2013 Mercedes-Benz S350, rear right, B4 OE Replacement (Air)
• Fits 2010-2013 Mercedes-Benz S400, rear right, B4 OE Replacement (Air)
• Fits 2007-2013 Mercedes-Benz S550, rear right, Without Active Body Control; B4 OE Replacement (Air)

Common Replacement Reasons

• Rear suspension sag on the right side
• Uneven ride height at the rear of the vehicle
• Loss of original ride comfort or damping control
• Air suspension damper wear on Mercedes-Benz CL-Class or S-Class models
• Need for a direct OE-style replacement without connector modification

Installation Notes

Verify rear right position and confirm the vehicle is equipped for the listed B4 OE Replacement (Air) application before installation. This part is designed to connect directly into the original connectors, which helps simplify replacement on the supported Mercedes-Benz models. Always compare the existing unit, connector style, and vehicle configuration before service. Part number 44-109486 may also be referenced during ordering and diagnosis.

Quality Assurance

Bilstein supplies OE air suspension systems and applies that experience to the B4 OE Replacement (Air) line. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. Use 44-109486 when replacing the rear right air suspension strut on the listed Mercedes-Benz vehicles.