Bilstein 20-070915 Air Shock Absorber - Rear

Bilstein B4 OE Replacement (Air) Rear Shock

Bilstein B4 OE Replacement (Air) shock absorber 20-070915 is built for rear air suspension applications on select Mercedes-Benz AMG models. It restores the original ride feel with a direct-connect design that works with the factory air suspension connectors and original mounting points.

Key Features

• Bilstein B4 OE Replacement (Air) series for factory-style air suspension service
• Monotube internal design for consistent damping response
• Black paint finish with black straight boot included
• Upper stem mount and lower 10 mm eye mount
• Direct-fit replacement for rear air shock absorber applications
• Part number 20-070915 for easy identification

Product Details

The Bilstein B4 OE Replacement (Air) line is focused on restoring original suspension behavior on European vehicles that use air-assisted damping. This rear air shock absorber is engineered to connect directly into the factory system, helping maintain the vehicle’s original ride characteristics without modification. It is a strong match for drivers searching for a Mercedes-Benz CLS63 AMG rear air shock absorber, Mercedes-Benz E63 AMG rear suspension replacement, or a Bilstein 20-070915 OE replacement for AMG air suspension service. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Rear suspension sag from a worn air shock absorber
• Loss of original ride control on AMG rear suspension systems
• Uneven damping response at the rear of the vehicle
• Factory air suspension performance decline over time
• Need for a direct replacement without connector modification

Installation Notes

Compatible with rear positions only. Verify the vehicle’s original air suspension layout, connector style, and mounting points before installation. This part is listed for 2003-2006 Mercedes-Benz E55 AMG rear, 2006 Mercedes-Benz CLS55 AMG rear, 2007-2009 Mercedes-Benz CLS63 AMG rear, 2010-2011 Mercedes-Benz CLS63 AMG rear without Performance Package, 2007-2008 Mercedes-Benz E63 AMG rear without Performance Package, and 2009 Mercedes-Benz E63 AMG rear. Use the factory-style mounting configuration: upper stem and lower 10 mm eye.

Quality Assurance

Bilstein is an OE supplier for air suspension systems, and the B4 OE Replacement (Air) series is built to meet the standards expected for original-equipment service on European vehicles. Part number 20-070915 is engineered as a direct replacement for factory air shock applications on select Mercedes-Benz AMG models.