Bilstein B4 OE Replacement

2004–2006 BMW X3 3.0i L6 Rear Twintube Strut Assembly

Part #: 19-123622

Overview

The Bilstein B4 OE Replacement rear twintube strut assembly is designed to restore your BMW X3's original ride quality and handling characteristics. Engineered with precision and backed by Bilstein's renowned reputation for quality and durability, these dampers provide a seamless replacement for worn or damaged factory units. Whether you're looking to maintain your vehicle's factory performance or restore its original driving feel, the B4 OE Replacement struts are an excellent choice.

Ideal for BMW owners who want to keep their vehicle driving like new, these struts are perfect for daily drivers, commuters, and enthusiasts seeking reliable, high-quality suspension components. By matching or exceeding OE standards, they help ensure your vehicle maintains its intended handling, comfort, and safety on the road.

Key Features

The Bilstein B4 OE Replacement dampers incorporate advanced engineering and high-quality materials to deliver consistent performance and longevity. Key features include:

• OE-Equivalent Design: Precisely engineered to match the original factory specifications, ensuring perfect fitment and function.
• High-Quality Construction: Made with durable steel and corrosion-resistant coatings to withstand harsh road conditions and environmental elements.
• Twin-Tube Technology: Utilizes Bilstein's proven twin-tube design for smooth, controlled damping and ride comfort.
• Optimized Damping: Engineered to provide the same ride quality, handling, and stability as the original equipment, restoring your vehicle's factory feel.
• Enhanced Durability: Built to meet or exceed OE standards, ensuring long-lasting performance and reliability.
• Easy Installation: Designed as a direct replacement, making installation straightforward without modifications or special tools.

Construction & Design

The Bilstein B4 OE Replacement strut assembly features a robust twin-tube design, combining a high-quality steel housing with precision-engineered internal components. The dampers are finished with corrosion-resistant coatings to enhance durability and longevity. Their design ensures consistent damping performance, helping to maintain optimal tire contact with the road, which is essential for safety and handling. The assembly is engineered to match the original OE specifications, ensuring perfect fitment and seamless integration into your BMW X3's suspension system.

Installation & Fitment

The Bilstein B4 OE Replacement rear twintube strut assembly is a direct bolt-on replacement for the original factory units. No cutting, drilling, or modifications are required, making installation straightforward for experienced DIY enthusiasts or professional technicians. It is recommended to replace struts in pairs to ensure balanced handling and ride quality. Proper torque specifications and alignment are essential after installation to maximize performance and tire wear.

• Direct replacement for factory rear struts on 2004–2006 BMW X3 3.0i L6 models
• No special tools or modifications needed
• Installation typically takes 1–2 hours per side

What's Included

• One rear twintube strut assembly
• Mounting hardware and components necessary for installation
• Installation instructions

Ideal For

• BMW X3 owners seeking to restore original ride quality and handling
• Drivers experiencing worn or sagging rear suspension components
• Enthusiasts who want reliable, OE-quality replacement parts
• Anyone looking to maintain their vehicle's factory performance and safety