The Whirlpool WPW10261227 Rail Stop keeps the dishwasher rack securely positioned and helps prevent it from sliding off the track during use. This replacement component attaches to the end of the rack rail and acts as a stopper, limiting the rack’s movement when it is pulled outward. It allows the rack to slide smoothly while keeping it aligned with the track during loading and unload... https://www.partsmelange.ca/whirlpool-wpw10261227-rail-stop-for-dishwasher