Bilstein 25-287806 Suspension Shock Absorber - Front Left

Bilstein B8 8100 (Bypass) Shock Absorber Overview

The Bilstein B8 8100 (Bypass) shock absorber, part number 25-287806, is engineered for Jeep Wrangler owners seeking precise suspension control. Designed with adjustable damping and a bypass body, this shock absorber enhances vehicle handling and ride quality on and off-road.

• Double adjustable damping for compression and rebound
• Bypass body design (non-coilover) with 60mm diameter
• Monotube internal design with integrated reservoir
• Collapsed length: 18.11 inches (460 mm); Extended length: 29.13 inches (740 mm)
• Zinc plated finish for corrosion resistance
• Upper and lower mounts: 12.8mm eyelets
• Compatible with Jeep Wrangler models

About the B8 8100 (Bypass) Product Line

The B8 8100 (Bypass) series from Bilstein features shock absorbers with a bypass body design that allows for independent adjustment of compression and rebound damping. This design provides enhanced tuning capabilities for drivers who require tailored suspension performance. Unlike coilover shocks, the bypass body offers a robust monotube construction with an integrated reservoir, improving heat dissipation and consistent damping under demanding conditions.

Detailed Product Description

This Bilstein shock absorber utilizes a monotube internal design combined with a bypass body to deliver precise suspension control. The double adjustable damping system allows separate tuning of compression and rebound forces, enabling customization to match driving preferences and terrain. The 60mm body diameter and zinc plated finish contribute to durability and corrosion resistance. With a collapsed length of 18.11 inches and an extended length of 29.13 inches, this shock absorber fits Jeep Wrangler suspension setups requiring these dimensions. Both upper and lower mounts use 12.8mm eyelets for secure attachment.

Applications and Problem Solving

• Improves handling and stability on rough or uneven terrain
• Reduces body roll and enhances cornering response
• Minimizes suspension fade during extended off-road use
• Allows fine-tuning of ride comfort and performance
• Replaces worn or damaged factory shocks for restored suspension function

Installation Notes and Tips

Ensure compatibility with your Jeep Wrangler model before installation. The shock absorber mounts with 12.8mm eyelets on both ends, so verify mounting hardware and bushings are in good condition. Adjust damping settings gradually to find the optimal balance between comfort and control. Professional installation is recommended to maintain suspension alignment and safety.

Quality Assurance

Bilstein shock absorbers are manufactured to meet strict quality standards, featuring durable monotube construction and corrosion-resistant finishes. The integrated reservoir design helps maintain consistent damping performance under demanding conditions. Please consult Bilstein or authorized distributors for warranty details related to part number 25-287806.