Bilstein B4 OE Replacement Air Spring & Shock Absorber

Mercedes-Benz S550 2014–2020 / Rear Right

Part #: 44-109486

Overview

The Bilstein B4 OE Replacement Rear Right Air Spring with Monotube Shock Absorber is a high-quality, direct-fit suspension component designed specifically for Mercedes-Benz S550 models from 2014 to 2020. Engineered by Bilstein, a trusted OE supplier for many European vehicle manufacturers, this assembly restores the original ride comfort and handling characteristics of your vehicle's air suspension system. Whether you're experiencing sagging, uneven ride height, or compromised ride quality, this replacement ensures your Mercedes-Benz maintains its factory-level performance and comfort.

Designed for enthusiasts and daily drivers alike, the Bilstein B4 OE Replacement offers a seamless installation process that requires no modifications. It provides a reliable solution to restore the vehicle's suspension to its original specifications, helping you enjoy a smooth, controlled ride while maintaining proper vehicle height and stability. This product is ideal for those seeking to replace worn or damaged air springs and shocks without sacrificing ride quality or safety.

Key Features

The Bilstein B4 OE Replacement Air Spring and Shock Absorber combine advanced engineering with durable materials to deliver exceptional performance and longevity. Key features include:

• OE-grade construction utilizing high-strength steel and durable rubber components to withstand harsh road conditions and vehicle loads.
• Monotube shock design that provides consistent damping performance, improved handling, and better heat dissipation compared to twin-tube designs.
• Direct-fit design that connects seamlessly to the original mounting points and connectors, ensuring a modification-free installation process.
• Restores original ride height and comfort, helping to eliminate sagging and uneven ride quality caused by worn air suspension components.
• Engineered to meet or exceed OE standards, ensuring reliability and safety for everyday driving and spirited performance.
• Designed specifically for Mercedes-Benz S550 models, maintaining the vehicle's factory ride characteristics and handling dynamics.
• Corrosion-resistant coatings and high-quality materials extend service life and maintain performance over time.

Construction & Design

The Bilstein B4 OE Replacement assembly features a robust monotube shock absorber paired with a precisely engineered air spring. The monotube design offers superior damping control, improved responsiveness, and consistent performance under various driving conditions. The air spring is constructed from high-quality rubber and reinforced with steel components to ensure durability and proper sealing. The assembly's design closely mirrors the original equipment, ensuring perfect fitment and function without the need for modifications.

Bilstein's engineering focus on heat management and structural integrity results in a suspension component that maintains optimal performance even during demanding driving scenarios. The corrosion-resistant coatings protect against rust and environmental damage, ensuring long-lasting reliability. The integrated design simplifies installation, making it accessible for both professional technicians and experienced DIY enthusiasts.

Installation & Fitment

The Bilstein B4 OE Replacement Air Spring and Shock Absorber are designed for straightforward, bolt-on installation. They connect directly to the vehicle's existing mounting points and electrical connectors, requiring no modifications, cutting, or drilling. Basic mechanical skills and standard tools are sufficient for installation, which can typically be completed within a few hours. No special tuning or calibration is necessary, as the assembly is engineered to match the original suspension specifications and maintain the factory ride quality.

• Direct-fit replacement for the original air suspension components on Mercedes-Benz S550 models (2014–2020).
• No cutting, drilling, or special tuning required.
• Compatible with the vehicle's existing air lines and electrical connectors.

What's Included

• Rear right air spring assembly with integrated monotube shock absorber
• All necessary mounting hardware and connectors
• Installation instructions

Ideal For

• Mercedes-Benz S550 owners seeking to restore original ride comfort and handling
• Vehicles experiencing sagging, uneven ride height, or air suspension failure
• Enthusiasts looking for OE-quality replacement parts for reliable performance
• Professionals performing suspension repairs or upgrades