The Rein Rack and Pinion Bellow Kit - BKK0146 is a replacement kit for the rack and pinion system in a vehicle. It includes a bellow, which is a flexible rubber boot that protects the inner components of the rack and pinion from dirt, debris, and moisture. This kit is designed to maintain the proper functioning of the rack and pinion, ensuring smooth steering and handling of the vehicle. It is made by Rein, a trusted brand in the automotive industry, and is compatible with a variety of vehicle makes and models. This kit is an essential component for maintaining the integrity of the steering system and ensuring safe and reliable driving.