Bilstein 25-311846 Suspension Shock Absorber - Rear

Bilstein B8 5160 Shock Absorber Overview

The Bilstein B8 5160 shock absorber (part number 25-311846) is engineered for heavy-duty Chevrolet and GMC trucks, including the Sierra and Silverado HD series. Designed to enhance suspension performance, this monotube shock absorber features a smooth body and a remote reservoir for improved heat dissipation and consistent damping.

• Non-adjustable damping for reliable, consistent performance
• Billet reservoir clamp included for secure mounting
• Monotube internal design for efficient heat management
• Zinc plated finish to resist corrosion
• Eye-type upper and lower mounts (14.4mm) for direct fitment
• Stroke length of 13.14 inches (333.8 mm) for extended travel
• Compatible with light truck segment vehicles

About the Bilstein B8 5160 Product Line

The B8 5160 series from Bilstein is tailored for light trucks requiring enhanced suspension travel and durability. Featuring a monotube design with a remote reservoir, these shocks provide improved heat dissipation and consistent damping under heavy loads and off-road conditions. The B8 5160 line is ideal for Chevrolet and GMC trucks that demand reliable shock performance without adjustable damping.

Detailed Product Description

This Bilstein shock absorber offers a smooth body design without coilover compatibility, making it suitable for specific suspension setups on Chevrolet Sierra 1500 HD, 2500, 3500, and Silverado 1500 HD, 2500, 3500 models. The monotube construction with a 46mm piston diameter and 14mm shaft diameter ensures durability and precise control. The included billet reservoir clamp secures the remote reservoir, which helps maintain consistent shock performance by reducing heat buildup during extended use. With a collapsed length of 18.14 inches (460.8 mm) and an extended length of 31.28 inches (794.5 mm), this shock absorber provides a stroke length of 13.14 inches (333.8 mm), allowing for improved suspension articulation and ride quality.

Applications and Problem Solving

• Improves suspension control on heavy-duty Chevrolet and GMC trucks
• Reduces shock fade during prolonged off-road or towing conditions
• Enhances ride stability and handling on Sierra 2500 HD and Silverado 3500 HD models
• Addresses suspension wear and tear from heavy payloads
• Maintains consistent damping without the need for adjustment

Installation Notes and Tips

Ensure compatibility with your specific Chevrolet or GMC model before installation. The eye-type upper and lower mounts (14.4mm) provide a direct fit, but verify mounting points for clearance. The included billet reservoir clamp should be securely fastened to prevent movement of the remote reservoir during operation. No boot or spring seat is included, so inspect existing components for wear and replace if necessary.

Quality Assurance and Warranty

Bilstein shock absorbers are manufactured to meet strict quality standards, featuring corrosion-resistant zinc plating and durable monotube construction. While specific warranty details for part number 25-311846 are not provided here, Bilstein typically offers coverage against defects in materials and workmanship. Consult the manufacturer or authorized distributor for exact warranty terms.