Bilstein B4 OE Replacement Suspension Strut Cartridge

Fitment: 1991 BMW 318i

Part #: 21-030505

Overview

The Bilstein B4 OE Replacement Suspension Strut Cartridge is engineered to restore the original ride quality and handling characteristics of your 1991 BMW 318i. Designed as a direct replacement for worn or damaged factory struts, this component helps maintain your vehicle’s factory suspension performance, ensuring a smooth and controlled ride. Built with precision and durability in mind, it provides reliable support for daily driving, commuting, and light handling tasks, helping to preserve your vehicle’s driving dynamics and comfort. Whether you're performing routine maintenance or restoring your vehicle’s suspension to factory standards, the Bilstein B4 OE Replacement Strut Cartridge offers a cost-effective and high-quality solution. Its design ensures compatibility with your BMW’s original suspension geometry, supporting consistent handling and ride comfort over time.

Key Features

This strut cartridge features a robust construction aimed at delivering a seamless replacement experience and long-lasting performance. Key features include:

• OE-grade materials for durability and reliability
• Precision-engineered to match factory specifications
• Seamless fitment for quick installation
• Designed to restore original ride height and handling
• Backed by Bilstein’s reputation for quality and performance
• Corrosion-resistant components for longevity

Construction & Design

The Bilstein B4 OE Replacement Strut Cartridge is constructed with high-quality steel and advanced damping technology. Its design incorporates a monotube construction that ensures consistent damping performance and heat dissipation, contributing to a smooth ride and stable handling. The coating and machining processes enhance corrosion resistance, making it suitable for various driving conditions.

Installation & Fitment

This strut cartridge is designed for straightforward installation as a direct bolt-on replacement for your vehicle’s original struts. Proper fitment should be verified against your vehicle’s specifications and the part number provided. Basic tools and mechanical knowledge are recommended for installation to ensure optimal performance and safety.

What’s Included

The package includes one Bilstein B4 OE Replacement Suspension Strut Cartridge, ready to replace your worn or damaged factory component and restore your vehicle’s suspension performance. Additional hardware or components are not included and should be transferred from your original strut assembly if necessary. This product is ideal for BMW 318i owners seeking to maintain or restore factory ride quality, handling, and comfort with a reliable, OE-quality replacement part.