Bilstein 4600 Series Bilstein 4600 Series Shock Absorbers and Struts are designed specifically to help your truck, van or SUV reach its pinnacle in ride performance and handling, while still providing the comfortable ride that has come to be expected from the name. A Bilstein 4600 Series equipped vehicle offers superior control compared to conventional alternatives, allowing you to keep cargo secure-from your kids to work equipment, mile after mile. Utilizing our patented design, the dampers allow the vehicle to glide over every type of road surface you may encounter while maintaining complete command at all times. These dampers are the least expensive and most effective upgrade to extend the service life of any vehicle out on the road today. Old Model Number: F4-BE5-2575-H0., 2 Year / 200,000 mile warranty.