The Genuine BMW Rear Door Brake is a high-quality replacement part designed specifically for BMW vehicles. It is made from durable materials and is designed to fit seamlessly into the rear door of the vehicle. This brake helps to hold the door in place when it is open and prevents it from closing unexpectedly. It is an essential component for ensuring the safety and functionality of the rear door. This product is part number 51227446729 and is an authentic BMW part.