Bilstein B8 5125 Series Monotube Shock Absorbers

The Bilstein B8 5125 Series is a professional-grade line of high-pressure monotube shock absorbers purpose-built for custom suspension builds, fabrication projects, and applications where a direct-fit Bilstein solution is unavailable. Trusted by builders, fabricators, and off-road enthusiasts, the B8 5125 line delivers the same race-proven damping technology that has made Bilstein a benchmark name in performance suspension worldwide.

Key Features:

• High-pressure monotube design with a nitrogen-charged floating dividing piston that separates gas and oil, ensuring consistent, fade-free damping performance in all on- and off-road conditions
• 46mm piston with patented digressive valving that instantly reacts to changing surface conditions, delivering optimal control, stability, and ride quality across diverse terrain
• Self-adjusting deflective disc valving provides precise damping response tuned to your specific application and terrain demands
• Industry-standard 5/8-inch hourglass bushings included on every unit for broad compatibility with a wide variety of aftermarket and custom mounting hardware
• Multiple mount configurations available, including eye-to-eye and stem-to-eye designs, for maximum versatility across custom installation scenarios
• Available in a wide selection of travel lengths and valve rates to suit lifted trucks, custom off-road rigs, and specialty fabrication projects across diverse load conditions and terrain profiles
• Engineered to Bilstein's exacting quality standards for long-term reliability in demanding on- and off-road environments

Backed by decades of motorsports heritage and OE engineering expertise, the B8 5125 series gives custom suspension builders the flexibility to engineer tailored solutions without sacrificing performance or quality. Select the length and valving that matches your build requirements and trust Bilstein performance to deliver — on the road and off it.