Bilstein B4 OE Replacement (DampTronic) Suspension Strut Assembly

Part #: 23-266476

Overview

The Bilstein B4 OE Replacement (DampTronic) Suspension Strut Assembly is designed to restore the original ride quality and handling characteristics of your vehicle. Specifically engineered for the 2017-2020 BMW 440i xDrive, these struts serve as direct replacements for the electronically adjustable DampTronic dampers found on many European vehicles. Crafted with precision and high-quality materials, they help maintain your vehicle’s factory ride comfort, handling response, and stability, ensuring a smooth and controlled driving experience. Whether you're restoring your vehicle to its factory specifications or seeking to maintain optimal performance, these strut assemblies are an excellent choice for discerning drivers who value reliability and original ride quality.

Key Features

Designed to meet or exceed OE standards, the Bilstein B4 DampTronic Strut Assemblies feature durable construction and advanced damping technology. They are engineered with high-quality steel and precision components to ensure longevity and consistent performance. The dampers incorporate Bilstein’s proprietary gas-pressure technology, providing excellent handling, stability, and comfort. These struts are designed for easy installation, matching the original mounting points and fitment specifications of your vehicle. Their robust design helps absorb road shocks and vibrations, contributing to a smooth ride and enhanced driving confidence. The electronically adjustable DampTronic feature allows for seamless integration with your vehicle’s existing systems, maintaining the original adaptive damping functionality.

Construction & Design

The Bilstein B4 OE Replacement dampers are constructed with high-strength steel bodies and corrosion-resistant coatings, ensuring durability and longevity under various driving conditions. The internal components are engineered for precise damping control, supporting the vehicle’s original handling and comfort characteristics. The design maintains the factory fitment and mounting points, simplifying installation and ensuring reliable operation.

Driving Feel & Feedback

These dampers help preserve the factory ride quality of your BMW 440i xDrive, providing a balanced combination of comfort and handling response. They support consistent damping performance, helping to absorb road imperfections and maintain vehicle stability during cornering and braking. The electronically adjustable DampTronic system continues to function as intended, offering adaptive damping that enhances driving engagement and comfort.

Installation & Fitment

Installation of the Bilstein B4 DampTronic Strut Assemblies is straightforward for qualified technicians familiar with BMW suspension systems. Proper fitment is essential for optimal performance, so verifying compatibility with your specific vehicle model and configuration is recommended. The assemblies are designed to bolt directly into place, restoring original ride height and handling characteristics.

What’s Included

The package includes one complete strut assembly with all necessary mounting hardware for a direct replacement. Additional components or tools are not typically required for installation, but professional installation is recommended to ensure proper setup and alignment.