Bilstein Suspension Strut Assembly

Part #: 23-266476

Overview

The Bilstein B4 OE Replacement (DampTronic) Suspension Strut Assembly is a high-quality component designed to restore and maintain the original ride quality of your vehicle. Specifically engineered for the 2017-2020 BMW 440i, these dampers are direct replacements for the electronically adjustable DampTronic units found on many European vehicles. Crafted with precision and durability in mind, they help ensure your vehicle maintains its factory handling, comfort, and stability. Whether you're restoring your vehicle's suspension or seeking to replace worn-out components, these struts provide a reliable solution that supports optimal driving dynamics and ride comfort.

Key Features

Designed to meet or exceed OE standards, the Bilstein B4 DampTronic Struts feature advanced engineering and high-quality materials. They are built to deliver consistent damping performance, helping to maintain your vehicle’s original handling characteristics. The struts incorporate Bilstein’s proprietary monotube design, which enhances heat dissipation and durability. Their precise fit and finish ensure straightforward installation, making them an excellent choice for both professional mechanics and DIY enthusiasts. These components are engineered to support a smooth, controlled ride while preserving the vehicle’s factory ride height and alignment.

Construction & Design

The Bilstein B4 DampTronic Struts are constructed with high-strength steel and feature a corrosion-resistant coating to withstand harsh driving conditions. The monotube design allows for consistent damping performance and improved heat management, contributing to longer-lasting performance and reliability. The electronically adjustable DampTronic compatibility ensures seamless integration with your vehicle’s existing suspension system, maintaining the original electronic damping functions.

Installation & Fitment

Installation of these struts requires basic mechanical skills and appropriate tools. It is recommended to verify fitment against your vehicle’s specific model and trim to ensure compatibility. Proper installation helps maintain optimal suspension geometry and ride quality, and professional installation is advised for best results.

What’s Included

The package includes one Bilstein B4 OE Replacement (DampTronic) Suspension Strut Assembly designed for the front or rear suspension, depending on your vehicle’s configuration. Hardware and mounting components are included as necessary for a complete replacement.

Ideal For

Ideal for BMW 440i owners seeking to restore factory ride quality, improve handling, and ensure long-term suspension reliability. Suitable for those performing maintenance or restoring their vehicle to original specifications, whether for daily driving or enthusiast purposes.