Bilstein 24-178525 Suspension Shock Absorber - Rear

Bilstein B8 Performance Plus Shock Absorber Overview

The Bilstein B8 Performance Plus shock absorber (part number 24-178525) is engineered for BMW models including the 528i, 535d, 535i, 550i, 640i Gran Coupe, 650i Gran Coupe, and ActiveHybrid 5. Designed to enhance suspension performance, this monotube shock absorber features a durable yellow paint finish and specific mounting types to ensure precise fitment and reliable operation.

• Monotube internal design for consistent damping
• Yellow paint finish for corrosion resistance
• Lower mount type: Eye 17.5mm
• Upper mount type: Stem
• Compatible with select BMW 5 and 6 Series models
• Part number 24-178525 for exact fitment

Detailed Product Features and Design

The Bilstein B8 Performance Plus shock absorber utilizes a monotube internal design, which provides improved heat dissipation and consistent damping performance under various driving conditions. The shock absorber is finished with a yellow paint coating that offers protection against corrosion and wear. The lower mount features a 17.5mm eye, while the upper mount uses a stem design, ensuring compatibility with the suspension geometry of the specified BMW models. This shock absorber does not include a boot, focusing on a streamlined design for performance applications.

About the B8 Performance Plus Product Line

The B8 Performance Plus series by Bilstein is tailored for drivers seeking enhanced suspension response and durability. This product line is designed to deliver improved handling characteristics over standard shocks by employing a monotube design and robust construction. The B8 Performance Plus shocks are suitable for performance-oriented BMW vehicles, providing a balance between comfort and control without altering the vehicle’s original suspension setup.

Applications and Problem Solving

• Restores suspension control on BMW 528i, 535d, 535i, 550i, 640i Gran Coupe, 650i Gran Coupe, and ActiveHybrid 5 models
• Addresses issues with worn or leaking shock absorbers
• Improves handling stability during cornering and braking
• Reduces excessive body roll and suspension fade
• Enhances ride quality on uneven or rough road surfaces

Installation Notes and Tips

Ensure compatibility by verifying the part number 24-178525 against your BMW model and year. The shock absorber mounts with a 17.5mm eye at the lower end and a stem at the upper end, so proper tools for these mount types are recommended. Since this shock does not include a boot, inspect existing suspension boots for wear and replace if necessary to protect the shock shaft. Professional installation is advised to maintain suspension alignment and performance.

Quality Assurance and Warranty

Bilstein shock absorbers are manufactured to meet strict quality standards, ensuring durability and consistent performance. The B8 Performance Plus shock absorber undergoes rigorous testing to comply with OEM specifications. Warranty details should be confirmed with the supplier or manufacturer, as they may vary by region and application.