Genuine OEM BMW Main Bearing Shell, part number 11218595898. This brown bearing shell is a crucial component of the crankshaft assembly, providing a low-friction surface for the crankshaft to rotate within. It is part of the engine's internal rotating assembly. The part weighs 0.059 kg. Genuine OEM bearing shells are manufactured to precise tolerances to minimize wear and ensure the longevity of the engine's rotating components.