The Genuine BMW Engine Crankshaft Thrust Washer - 11217594889 is a small, circular metal component that is designed to support and guide the movement of the engine crankshaft. It is an essential part of the engine's internal components and helps to reduce friction and wear on the crankshaft. This specific thrust washer is manufactured by BMW and is designed to fit perfectly in BMW engines. It is made of high-quality materials and is a genuine OEM part, ensuring reliability and durability. It is compatible with various BMW models and is a crucial component for the smooth operation of the engine.