The Bilstein B4 Series (Gas Pressure) Shock Absorber is designed to restore your vehicle's original ride performance and stability. As an OE replacement, it provides the exact damping characteristics specified by the manufacturer. Key Features: Constant damping power under any load, high OEM quality standards, and proven Bilstein gas pressure technology. This product is sold as a single unit. List of parts included: 1x Shock Absorber (Part Number: 19-112893). Recommended to be replaced in pairs for optimal safety and handling.