The Bilstein 14-17 BMW 640i xDrive B4 OE Replacement Suspension Strut Assembly - Front Right is designed to replace the original equipment strut assembly on the 2014-2017 BMW 640i xDrive. This strut assembly is made with high-quality components to ensure a long lasting and reliable performance. It features a monotube design with a gas pressure technology to provide superior damping capabilities. It also has a 10-stage velocity sensitive valving for superior ride comfort and handling. This strut assembly is designed to be an exact fit replacement and is backed by a limited lifetime warranty.