Bilstein 33-186559 Universal B8 5125 Zinc Plated Monotube Shock Absorber

Vehicle Fitment

• Universal - Custom suspension applications and lifted vehicles

Features

• B8 5125 Series high-gas pressure monotube shock absorber
• Zinc-plated smooth body for enhanced corrosion resistance
• Nitrogen gas-charged internal design for consistent performance
• Self-adjusting deflective disc valving for responsive damping
• Eye-to-eye mount configuration with 5/8" bushings
• Approximately 11.0" travel suitable for custom lifted setups
• Includes black protective bellows boot
• Non-adjustable damping tuned for broad performance use

Specifications

• Part Number: 33-186559
• Series: Bilstein B8 5125
• Type: Monotube, nitrogen gas-charged shock absorber
• Finish: Zinc-plated smooth body
• Collapsed Length: ~17.01" (≈432 mm)
• Extended Length: ~28.00" (≈711 mm)
• Travel/Stroke: ~10.99" (≈279 mm)
• Upper Mount: Eye 5/8"
• Lower Mount: Eye 5/8"
• Body Diameter: ~46 mm
• Damping: Non-adjustable
• Boot: Black protective bellows included

Included Components

• 1x Universal B8 5125 Shock Absorber (33-186559)
• 1x Black protective bellows boot

Product Description

The Bilstein 33-186559 is a universal B8 5125 Series monotube shock absorber engineered for custom suspension applications where a direct vehicle-specific part isn't available. Featuring a high-gas pressure monotube design with self-adjusting deflective disc valving, this shock provides reliable, fade-free damping performance over varied terrain and load conditions, making it ideal for lifted trucks, custom builds, and aftermarket suspension projects.

Built with a zinc-plated smooth body for corrosion resistance and equipped with industry-standard 5/8" eye-to-eye mounts, this shock delivers approximately 11" of travel for flexible use in bespoke suspension setups. The included black protective bellows boot helps shield the shaft from debris. Because this product is universal, proper fitment requires matching its length and mounting configuration to your specific suspension geometry or using appropriate adapters and hardware. It's a solid choice for suspension builders, off-road enthusiasts, and anyone looking to upgrade damping performance in custom or lifted applications.