Bilstein B4 Series OE Replacement Gas Pressure Shock Absorber. Location: Front Axle Right. Engineered to restore the original ride performance and handling of your vehicle. This is a single shock absorber unit (Article: 22-242914). For a complete front suspension overhaul, it is recommended to replace in pairs with the left side unit (Bilstein 22-242907). Features: constant damping power under any load, high OEM quality, and superior traction.