The Genuine BMW Subframe Mount Stopper Washer is a small, circular metal washer designed to fit onto the subframe mount of a BMW vehicle. It is a genuine OEM (Original Equipment Manufacturer) part, manufactured by BMW to meet their high standards of quality and performance. This washer helps to secure the subframe in place and prevent excessive movement or vibration, providing a smoother and more stable driving experience. It is compatible with various BMW models and is an essential component for proper subframe installation and maintenance.