The Bilstein B4 Series 19-278544 is a high-quality OE replacement gas-pressure shock absorber designed specifically for the rear axle of the Subaru Outback (2010-2014). Engineered to restore the vehicle's original ride performance, handling, and stability, this shock absorber utilizes Bilstein's famous constant damping power under any load. Key features include: Monotube/Twin-tube gas pressure technology for instant response, high OEM quality standards, and a direct bolt-on installation. Package contents: 1x Shock Absorber (Article: 19-278544). Recommended to be replaced in pairs for optimal safety and balance.