Genuine OEM BMW Crankshaft Thrust Bearing, part number 11211706831. This component is designed to manage the axial forces acting on the crankshaft, preventing it from moving forward or backward within the engine block. It works in conjunction with other bearing shells to ensure smooth and stable crankshaft rotation. Manufactured with precise tolerances for optimal performance and durability. Genuine OEM parts are essential for maintaining the correct balance and preventing premature wear in your engine's critical rotating assembly.