The Bilstein B4 Series 19-230542 is a high-quality Rear Twintube Gas Pressure Shock Absorber designed to restore original ride characteristics. Engineered as a direct OEM replacement, it ensures maximum safety and stability. This item is sold as a single unit (1x Shock Absorber). Features include: constant damping power under any load, high road adhesion, and proven Bilstein gas pressure technology. Designed for vehicles with standard suspension and multi-link rear axles.