Bilstein 35-109631 Suspension Strut Assembly - Front

Bilstein B6 Performance Suspension Strut Assembly Overview

The Bilstein B6 Performance Suspension Strut Assembly 35-109631 is engineered for BMW models including the 525i, 528i, 530i, 535i, 545i, and 550i. Designed to enhance handling and ride quality, this monotube strut assembly features durable components tailored for performance driving and daily use.

• Monotube internal design for consistent damping
• Yellow painted finish for corrosion resistance
• Blue bellows boot included for added protection
• Housing type lower mount and stem type upper mount
• Compatible with BMW 5 Series models 525i through 550i

About the Bilstein B6 Performance Product Line

The B6 Performance line by Bilstein is developed to provide improved handling and control over standard OEM suspension components. This series is designed for drivers who require enhanced performance without sacrificing ride comfort. The monotube technology used in the B6 Performance struts offers precise damping characteristics, making it suitable for both spirited driving and everyday road conditions.

Product Features and Technical Details

This Bilstein shock absorber assembly (part number 35-109631) incorporates a monotube internal design, which allows for better heat dissipation and consistent performance under demanding conditions. The yellow painted finish protects the strut from corrosion, extending its service life. The included blue bellows boot safeguards the piston rod from dirt and debris, helping maintain smooth operation. The lower mount uses a housing type design, while the upper mount is a stem type, ensuring proper fitment and secure installation on compatible BMW 5 Series vehicles.

Applications and Problem Solving

• Restores handling and stability on BMW 525i, 528i, 530i, 535i, 545i, and 550i models
• Reduces excessive body roll and improves cornering response
• Addresses worn or leaking OEM struts causing poor ride quality
• Enhances suspension performance for daily driving and light performance use
• Protects suspension components with included blue bellows boot

Installation Notes and Tips

Ensure compatibility with your specific BMW model before installation. The monotube design requires proper alignment and torque specifications during mounting. The housing lower mount and stem upper mount must be securely fastened to avoid premature wear. It is recommended to have a professional suspension technician perform the installation to maintain vehicle safety and performance standards.

Quality Assurance and Warranty

Bilstein manufactures this suspension strut assembly to meet or exceed OEM standards. The durable yellow paint finish and protective blue bellows boot contribute to long-term reliability. While specific warranty details are not provided here, Bilstein products typically come with a manufacturer-backed warranty covering defects in materials and workmanship.