The Genuine BMW Disc Brake Caliper Piston Seal - 34217850468 is a high-quality replacement part for BMW vehicles. It is designed to fit perfectly into the brake caliper piston, providing a tight seal to prevent any leakage of brake fluid. This seal is made from durable materials to ensure long-lasting performance and reliable braking. It is an essential component for maintaining the proper function of the brake system and ensuring safe driving. This Genuine BMW product is an exact match for the original part and is recommended for use in BMW vehicles for optimal performance.