Quick Overview Bilstein B8 5100 shock absorbers are designed as a direct fit solution for lifted trucks and SUV’s. These shock absorbers feature a monotube design which provides consistent fade free performance. B8 5100 shock absorbers utilize a unique, velocity sensitive, digressive piston which reacts to changing road conditions. All B8 5100 shock absorbers are tuned for each specific application to assure optimal performance is achieved. B8 5100 shock absorbers offer a significant improvement in ride quality, handling, and comfort. Attributes: GTIN: 00651860600161 Brand Name: Bilstein Collapsed Length (IN): 13.52 Body Design: Smooth Body (Non-Coilover) Body Diameter (ID): 46mm Extended Length (IN): 21.46 Adjustable Damping: Non-Adjustable Collapsed Length (MM): 343.3 Series: B8 5100 Spring Seat Included: No Internal Design: Monotube Reservoir: No Lower Mount Type: Eye 14.1mm Boot Included: Black Bellows Extended Length (MM): 545.0 Upper Mount Type: Stem Finish: Zinc Plated Extended Information: Country of Origin: Mexico Emissions : Released Life Cycle Status: Available To Order Packing Information: Quantity of Each: 1.0 Package UOM: EA Dimension: 26.8000 x 2.9500 x 2.9500 inches Weight: 4.7400 lb PDF: USA SDS_Shock_Air Spring_V2_EN E4-WM5-Y217A00