The Bilstein B4 Series 19-170084 is a premium gas-pressure shock absorber designed to restore the original ride characteristics of your vehicle. Engineered as a direct replacement for cars with standard suspension, it ensures maximum safety and stability. This shock absorber features high-quality twin-tube technology for consistent damping performance under any load. This item is sold as a single unit. Included parts: 1x Rear Shock Absorber (PN: 19-170084). It is recommended to replace shock absorbers in pairs.