The Bilstein B8 8100 (Bypass) is a direct fit, position-specific reservoir shock absorber designed for lifted trucks and SUVs. This high-performance monotube shock features a dual-tube external bypass system, offering incremental sensitive damping adjustments for superior off-road control and on-road comfort. The package includes: 1x Rear Right Shock Absorber (25-284591), Zinc plated finish for durability, High-temperature oil, and necessary mounting hardware. Features professional-grade 60mm piston for consistent performance in extreme conditions.