Bilstein 25-311884 Suspension Shock Absorber - Front

Bilstein B8 5160 Remote Reservoir Shock

The Bilstein B8 5160 remote reservoir shock absorber is a direct-fit suspension upgrade for lifted trucks and SUVs that need more control on rough roads and off-road terrain. Built for front suspension use on select Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD models with a 1.5" front lift, part number 25-311884 combines consistent damping with added cooling capacity.

The B8 5160 line is Bilstein’s remote reservoir shock series for light truck applications. It uses a monotube design, velocity-sensitive digressive valving, and a low-profile reservoir layout to support stable performance under repeated suspension movement. This setup is aimed at drivers who want controlled ride quality and improved durability in demanding use.

• Direct-fit front shock absorber for lifted truck applications
• Remote reservoir design for increased cooling capacity and wheel travel
• Monotube internal design for consistent fade-resistant performance
• Velocity-sensitive digressive valving tuned for the application
• 46mm piston diameter and 14mm shaft diameter
• Zinc-plated finish for added corrosion resistance
• Billet reservoir clamp included
• 360-degree swivel banjo hose fitting for cleaner routing
• Lower clevis mount and upper crossbar mount

Compatible With 2011-2026 Chevrolet Silverado 2500 HD, front; 2011-2026 Chevrolet Silverado 3500 HD, front; 2011-2026 GMC Sierra 2500 HD, front; and 2011-2026 GMC Sierra 3500 HD, front. Part number 25-311884 is built for vehicles with a 1.5" front lift and is intended to maintain controlled suspension movement while adding reservoir capacity for harder use.

Common Problems This Shock Can Address

• Excessive shock fade during repeated compression and rebound cycles
• Reduced control on lifted front suspension setups
• Harsh response over washboard roads, ruts, and uneven terrain
• Limited wheel travel from a standard shock absorber
• Premature wear from demanding light-truck and off-road use

Installation Notes

Verify front lift height before ordering, since this shock is specified for 1.5" front lift applications. Confirm mount style, collapsed length, and extended length against the vehicle’s suspension geometry before installation. The remote reservoir and swivel banjo fitting help simplify hose routing, but final placement should be checked for clearance through full suspension travel.

For fitment searches, this part is commonly referenced for a 2011-2026 Chevrolet Silverado 2500 HD front shock, 2011-2026 Chevrolet Silverado 3500 HD front shock, 2011-2026 GMC Sierra 2500 HD front shock, and 2011-2026 GMC Sierra 3500 HD front shock. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Quality Assurance

Bilstein B8 5160 shocks are engineered with a monotube construction and application-specific valving to support consistent damping performance in light truck service. The remote reservoir design, billet reservoir clamp, and zinc-plated finish reflect the product’s focus on durability and controlled operation in harsh conditions.