Bilstein 44-273446 Air Suspension Strut - Front Right

Bilstein B4 OE Replacement Air Strut

The Bilstein B4 OE Replacement (Air) air suspension strut restores factory-style ride control for select Mercedes-Benz GLS and GL models with electronic suspension. Built as a direct replacement for the original air suspension unit, this Bilstein 44-273446 front right strut connects to the vehicle’s original connectors for a modification-free installation.

For drivers searching for a front right air suspension strut for Mercedes-Benz GLS450, GLS550, GLS350d, GL350, GL450, or GL550, this OE replacement from Bilstein is engineered to match the original system layout and driving feel.

Key Features

• Bilstein B4 OE Replacement (Air) series for OE-style suspension restoration
• Front right air suspension strut for select Mercedes-Benz SUVs
• Monotube internal design for consistent damping response
• Black painted finish
• Direct connection to original vehicle connectors
• Lower mount type: clevis
• Upper mount type: special
• Boot not included

Product Details

Bilstein 44-273446 is an air suspension strut designed for Mercedes-Benz vehicles equipped with electronic suspension. Bilstein supplies OE air suspension systems, and this B4 OE Replacement (Air) damper follows the original equipment layout to help restore the vehicle’s factory ride characteristics. The monotube construction supports controlled damping, while the direct-fit design helps simplify replacement on the front right corner.

This part cross-references Mercedes-Benz OE numbers 166 320 56 66 and 166 320 56 66 80 for the same application.

What This Part Helps Address

• Front right suspension sag or uneven ride height
• Loss of damping control over bumps and road joints
• Air strut noise or reduced ride quality
• Warning lights related to electronic suspension performance
• Factory ride feel that has changed with age or wear

Installation Notes

Fits 2017-2019 Mercedes-Benz GLS450, front right, with electronic suspension; B4 OE Replacement (Air). Fits 2017-2019 Mercedes-Benz GLS550, front right, with electronic suspension; B4 OE Replacement (Air). Fits 2017 Mercedes-Benz GLS350d, front right, with electronic suspension; B4 OE Replacement (Air). Fits 2013-2016 Mercedes-Benz GL350, front right, with electronic suspension; B4 OE Replacement (Air). Fits 2015-2016 Mercedes-Benz GL450, front right, with electronic suspension; B4 OE Replacement (Air). Fits 2013-2016 Mercedes-Benz GL550, front right, with electronic suspension; B4 OE Replacement (Air).

Verify electronic suspension configuration and front right application before installation. Use the original mounting points and connectors for a direct replacement on the listed Mercedes-Benz GLS and GL models.

Quality Assurance

Bilstein is an OE supplier for air suspension systems, and the B4 OE Replacement (Air) line is built to meet the standards expected for original-equipment replacement on European vehicles.