The Bilstein B4 Series 22-183729 is a high-quality gas-pressure front suspension strut designed to restore your vehicle's original handling performance and comfort. Engineered specifically for models with a 55mm outside strut diameter, this twin-tube shock absorber provides consistent damping power under any load. This product is sold as a single unit. Included parts: 1x Front Strut Assembly (Article: 22-183729), 1x Upper Nut. Ideal for replacing aged factory components with original equipment quality.