B8 5165 Universal Reservoir Shock - for 8-9" Travel Eyelet to Eyelet - (Single)

Features:

• Supports 8-9" travel eyelet to eyelet 
• Remote reservoir improves cooling performance
• Universal eye-to-eye shock design
• Built for custom off-road vehicles
• 46mm high-pressure monotube design
• Digressive self-adjusting valving
• 360 degree swivel banjo fitting
• Increases wheel travel capability
• Triple-C corrosion-resistant finish
• Includes reservoir mounting kit
• 5/8 inch eyelets with bushings
• Non-adjustable performance valving
• Ideal for lifted trucks and SUVs

Push Your Suspension Beyond Ordinary Limits

When your suspension is built for serious terrain, a standard shock simply is not enough. The Bilstein 25-331875 B8 5165 Universal Reservoir Shock is engineered for custom lifted trucks and SUVs that demand exceptional control when the trail gets rough. Its remote reservoir design increases oil capacity, helping the shock stay cooler and perform consistently during long off-road adventures or repeated suspension cycling. Additionally, the proven monotube construction delivers the responsive handling and ride quality that have made Bilstein a trusted name among off-road enthusiasts. Whether your build is focused on rock crawling, desert running, or exploring remote trails, this shock is designed to keep your suspension composed when conditions become challenging. The durable Triple-C finish also helps protect against corrosion, allowing it to stand up to mud, moisture, and harsh environments with confidence. If you are building a suspension that is meant to perform instead of simply look the part, this shock is ready to rise to the occasion.

Designed To Meet The Demands Of Custom Builds

The Bilstein B8 5165 Remote Reservoir Shock is developed specifically for universal custom applications where proper dimensions and mounting configuration determine fitment. Its 46mm high pressure monotube construction efficiently manages heat while Bilstein's digressive valving automatically responds to changing suspension movement for precise damping control. Furthermore, the remote reservoir significantly increases shock oil capacity, improving cooling efficiency and maintaining consistent performance during prolonged off-road use. By relocating the floating dividing piston into the reservoir, the design allows for greater shaft movement and increased wheel travel compared to conventional shock absorbers. The eye-to-eye mounting configuration includes 5/8 inch eyelets with hourglass bushings, along with 1/2 inch sleeves and a reservoir mounting kit for installation. A unique 360 degree swivel banjo hose fitting simplifies reservoir routing and provides a clean, low profile appearance on custom suspension systems. Finished with Bilstein's exclusive Triple-C corrosion-resistant coating, this shock delivers long lasting durability and dependable performance for builders who expect their suspension to perform under the toughest conditions.

Fitment: Universal

Notes:

• Universal shock for custom applications. Verify measurements before ordering.
• Fits by shock dimensions, not by vehicle application.
• Confirm your suspension uses 5/8 inch eye mounts.
• Check collapsed and extended lengths before installation.
• Sold individually. Order two for a complete axle replacement.
• Includes reservoir mounting kit and 1/2 inch sleeves.
• Remote reservoir requires adequate mounting space.
• 360 degree swivel banjo fitting simplifies reservoir routing.
• Non-adjustable factory valving requires no tuning.
• No protective boot or spring seat is included.
• Optional reservoir clamp is Bilstein part 11-176015.
• Covered by Bilstein's 90-day manufacturer warranty against defects.
• Product images may be representative.

Install Instructions