The Genuine BMW Door Lock Cylinder - 51217212875 is a replacement part for a BMW vehicle's door lock system. It is designed to fit and function exactly like the original door lock cylinder, providing secure access to the vehicle. This product is made of high-quality materials and is manufactured by BMW, ensuring durability and reliability. It is a genuine OEM part, meaning it is an official product from the original manufacturer. This door lock cylinder is compatible with specific BMW models and is an essential component for proper functioning of the vehicle's locking system.