Bilstein 25-311853 Suspension Shock Absorber - Front

Overview of Bilstein B8 5160 Suspension Shock Absorber

The Bilstein B8 5160 shock absorber (part number 25-311853) is engineered for light trucks such as Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD. Designed to provide consistent damping performance, this monotube shock absorber enhances vehicle stability and control under demanding conditions.

• Non-adjustable damping for reliable, maintenance-free operation
• Monotube internal design for efficient heat dissipation and consistent performance
• Includes a remote reservoir to improve fluid capacity and reduce fade
• Zinc plated finish for corrosion resistance
• Eye lower mount (14.1mm) and stem upper mount for secure fitment
• Collapsed length: 10.79 inches (274 mm); Extended length: 16.27 inches (413.2 mm)
• Stroke/travel length of 5.48 inches (139.2 mm) for optimal suspension articulation
• 46mm piston diameter and 14mm shaft diameter for durability and strength

Bilstein B8 5160 Product Line Details

The B8 5160 series is designed specifically for light trucks and SUVs requiring enhanced suspension performance. This product line features monotube shocks with remote reservoirs, which increase oil capacity and improve heat management during heavy-duty use. The B8 5160 shocks are engineered to maintain consistent damping characteristics, making them suitable for vehicles like the Chevrolet Avalanche 2500 and GMC Yukon XL 2500 that demand reliable suspension under load.

Technical Description and Features

This Bilstein shock absorber utilizes a monotube design that allows for better heat dissipation compared to twin-tube shocks, reducing the risk of fade during extended use. The inclusion of a remote reservoir increases fluid volume, which helps maintain consistent damping performance over rough terrain or heavy towing. The shock features a smooth body design without coilover compatibility, zinc plating for corrosion resistance, and mounts designed for direct fitment on select Chevrolet, GMC, and Hummer models. The non-adjustable damping setup ensures consistent shock response without the need for manual tuning.

Applications and Problem Solving

• Improves ride stability and control on Chevrolet Silverado 3500 HD and GMC Sierra 2500 HD
• Reduces shock fade during heavy towing or off-road driving
• Addresses suspension sag and improves load handling on Hummer H2 and Suburban 2500
• Enhances suspension travel and articulation for better off-road capability
• Replaces worn or damaged shocks to restore factory-level performance

Installation Notes and Tips

Ensure compatibility with your vehicle model before installation. This shock absorber features an eye lower mount and stem upper mount, designed for direct replacement on specified Chevrolet, GMC, and Hummer light trucks. No adjustable damping settings require setup, simplifying installation. Verify collapsed and extended lengths to confirm fitment. Professional installation is recommended to ensure proper torque specifications and alignment.

Quality Assurance and Warranty

Bilstein shock absorbers are manufactured to meet strict quality standards, utilizing durable materials such as zinc plating for corrosion resistance and robust internal components. The B8 5160 series is engineered for long service life under demanding conditions. Warranty information should be confirmed with the manufacturer or authorized distributor.