The Bilstein B4 Series 24-226776 Gas Pressure Shock Absorber is an original equipment replacement designed to restore your vehicle's factory ride quality and stability. Engineered with Twintube technology, it provides consistent damping and optimum road adhesion. This part is a single shock absorber unit. Included in package: 1x Rear Shock Absorber (Part No: 24-226776). Features: Constant damping power under any load, high OEM quality, and proven Bilstein gas pressure technology.