Bilstein B4 OE Replacement

2014–2016 Mercedes-Benz S550 Rear Left Air Suspension Spring

Part #: 44-239985

Overview

The Bilstein B4 OE Replacement rear left air suspension spring is a high-quality component designed specifically for your Mercedes-Benz S550 from model years 2014 through 2016. As an OE supplier, Bilstein has a long-standing reputation for manufacturing suspension components that meet or exceed the original equipment standards. This air suspension spring is engineered to restore the original ride height, comfort, and handling characteristics of your vehicle, ensuring a smooth and controlled driving experience.

If your Mercedes-Benz S550 is experiencing uneven ride height, sagging, or suspension noise, replacing the faulty air spring with a Bilstein OE Replacement part can help restore optimal suspension performance. Designed for direct fitment, this spring connects seamlessly to your vehicle's existing air suspension system, making it an ideal solution for enthusiasts and daily drivers seeking reliable, factory-quality replacement parts.

Key Features

Bilstein B4 OE Replacement air suspension springs incorporate advanced engineering and durable materials to deliver exceptional performance and longevity. Here are some of the key features that make this product a top choice for your Mercedes-Benz:

• OE-Quality Construction: Manufactured to meet or exceed the original equipment specifications, ensuring perfect fitment and reliable operation.
• Direct Fitment: Designed to connect directly into your vehicle’s existing air suspension system without modifications, preserving factory settings and performance.
• Durable Materials: Constructed from high-strength steel and reinforced with corrosion-resistant coatings to withstand harsh road conditions and environmental factors.
• Restores Ride Height & Comfort: Helps maintain proper vehicle stance, ride quality, and handling characteristics, ensuring a comfortable and controlled drive.
• OE-Style Design: Matches the original spring's dimensions and mounting points for hassle-free installation and consistent performance.
• Enhanced Reliability: Designed to meet or surpass OE durability standards, reducing the likelihood of premature failure and costly repairs.

Construction & Design

The Bilstein B4 OE Replacement air suspension spring is crafted from high-quality steel with a corrosion-resistant coating, ensuring durability and long service life. Its precise engineering guarantees a perfect fit and seamless integration with your vehicle's existing suspension components. The design maintains the original ride height and handling characteristics, providing a factory-like feel and performance. The spring's construction is optimized to withstand the stresses of daily driving, supporting your vehicle's weight and absorbing road shocks effectively.

Installation & Fitment

The Bilstein B4 OE Replacement rear left air suspension spring is a bolt-on component that requires no cutting, drilling, or complex modifications. It connects directly to your vehicle's existing air suspension system using the original connectors, making installation straightforward for experienced DIY enthusiasts or professional technicians. Basic tools and mechanical knowledge are sufficient to complete the replacement, and no special tuning or calibration is necessary.

• Easy, direct-fit replacement for the original air spring
• No modifications or special tools required
• Restores factory ride height and comfort

What's Included

• One Bilstein B4 OE Replacement rear left air suspension spring
• Installation hardware and instructions (if applicable)

Ideal For

• Mercedes-Benz S550 owners seeking a reliable, factory-quality replacement
• Restoring original ride height and handling after suspension failure
• Enthusiasts and technicians aiming for OE-level performance and durability