Does this air spring come with all the necessary hardware for installation?

This air spring module is designed to connect directly to your vehicle's original connectors. While it restores original functionality, it's always best to consult your vehicle's service manual or a qualified technician to confirm if any additional hardware or specific installation tools are required for your model.

Should I replace both front air springs at the same time?

It is generally recommended to replace air springs in pairs on the same axle. This helps ensure balanced suspension performance and consistent ride height on both sides of your vehicle.

What is the expected lifespan of a Bilstein B4 air spring?

Bilstein B4 OE Replacement Air dampers are manufactured with 100% new parts to meet or exceed original equipment standards for maximum reliability and safety. While specific lifespan varies with driving conditions, they are built for long-term performance matching the original part.

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Specifications

Brand: Bilstein
Part #: 44-121167
UPC: 651860640426

Bilstein B4 2009 Mercedes-Benz R320 Bluetec Front Suspension Air Spring

Name: Bilstein B4 2009 Mercedes-Benz R320 Bluetec Front Suspension Air Spring
Brand: Bilstein
SKU: bilstein-bilstein-b4-2009-mercedes-benz-r320-bluetec-front-suspension-air-spring-t14-283253
Price: 1459.00 USD
Availability: BackOrder

$1459.00

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2006-2012 Mercedes-Benz R350. Bilstein B4 front suspension air spring restores original feel and functionality.

Key Features

Fits 2006-2012 Mercedes-Benz R350, 2007-2009 R320 Bluetec, 2006-2007 R500, and 2007 R63 AMG.
Restores original air suspension functionality and ride comfort.
Manufactured with 100% new parts for maximum reliability and safety.
Designed to connect directly into original vehicle connectors for modification-free installation.
Built to meet or exceed original equipment manufacturer standards.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

About this part

Product Details

Bilstein is well-known for supplying original equipment air suspension systems to European automakers, and their B4 OE Replacement Air dampers are built to meet or exceed those same high standards. If your Mercedes-Benz R350 (or other compatible R-Class model) is experiencing issues with its air suspension, this front air spring module is designed to bring back that original ride comfort and functionality.

This air spring is manufactured with 100% new parts, ensuring reliability and safety for your vehicle. It's designed as a direct replacement, meaning it connects right into your car's original air suspension connectors without any modifications needed. This ensures a straightforward installation and helps restore the precise feel of the vehicle as it left the factory. You can expect 100% OE quality and comfort, just like the original part.

This specific unit is for the front of your vehicle. When replacing air springs, it's often recommended to replace them in pairs to maintain balanced suspension performance. Always refer to your vehicle's service manual for the most accurate installation procedures and any additional components that may be required.