Bilstein B4 OE Replacement Suspension Strut Cartridge

1982–1988 BMW 528e

Part #: 21-030512

Overview

The Bilstein B4 OE Replacement Suspension Strut Cartridge is designed to restore the original ride quality and handling characteristics of your BMW 528e from 1982 to 1988. Engineered with precision and backed by Bilstein's renowned reputation for quality and durability, these strut cartridges provide a seamless replacement option that maintains your vehicle's factory performance. Whether you're restoring a classic BMW or seeking to maintain its original driving dynamics, these cartridges are the perfect choice for enthusiasts who value authenticity and reliability.

Designed for everyday driving and enthusiasts alike, the Bilstein B4 OE Replacement Dampers help ensure your BMW retains its factory handling, comfort, and safety standards. They are ideal for restoring the vehicle's suspension to its original specifications, providing a smooth, controlled ride that matches the factory intent. With these cartridges, you can confidently maintain your vehicle's original driving experience while benefiting from Bilstein's advanced engineering and manufacturing standards.

Key Features

The Bilstein B4 OE Replacement Suspension Strut Cartridge offers several key features that make it a superior choice for restoring your BMW's suspension system:

• OE-Equivalent Design: Precisely engineered to match the original factory specifications, ensuring perfect fitment and performance.
• High-Quality Materials: Constructed with durable steel and advanced damping technology to withstand the rigors of daily driving and maintain consistent performance over time.
• Bilstein Gas Pressure Technology: Utilizes Bilstein's proprietary gas pressure design to deliver excellent handling, stability, and ride comfort.
• Restores Original Handling: Helps maintain the factory ride height, steering response, and overall handling characteristics of your BMW 528e.
• Enhanced Safety and Comfort: Provides reliable damping to improve safety, ride comfort, and vehicle control under various driving conditions.
• Easy Installation: Designed as a direct replacement for OE strut cartridges, making installation straightforward for qualified technicians or experienced DIY enthusiasts.
• World-Famous Bilstein Quality: Manufactured to meet or exceed OE standards, ensuring long-lasting performance and peace of mind.

Construction & Design

The Bilstein B4 OE Replacement Strut Cartridge features a robust construction utilizing high-strength steel components and advanced damping technology. Its design incorporates a one-piece piston rod and a precision-machined housing that ensures a perfect seal and consistent damping performance. The cartridge is engineered with a corrosion-resistant coating to withstand harsh environmental conditions, extending its service life. The use of Bilstein's gas pressure technology ensures optimal damping response, providing a smooth and controlled ride that closely matches the original factory setup. This meticulous design approach guarantees that your BMW's suspension maintains its factory handling characteristics, with the added benefit of Bilstein's legendary durability and performance.

Installation & Fitment

The Bilstein B4 OE Replacement Suspension Strut Cartridge is a direct-fit component designed to replace the original factory strut cartridges without the need for modifications. Installation typically involves removing the existing strut assembly, compressing the coil spring, and swapping out the old cartridge with the new Bilstein unit. No cutting, drilling, or tuning is required, making it a straightforward process for qualified technicians or experienced DIYers. Proper installation ensures optimal suspension performance, safety, and ride comfort.

• Direct replacement for factory OE strut cartridges
• No additional modifications or tuning required
• Compatible with 1982–1988 BMW 528e models

What's Included

• One (1) Bilstein B4 OE Replacement Suspension Strut Cartridge
• Installation hardware and instructions

Ideal For

• BMW 528e owners seeking to restore original ride quality and handling
• Restoration projects for classic BMW models
• Enthusiasts wanting reliable, OE-quality suspension components
• Drivers prioritizing safety, comfort, and factory performance