Genuine OEM BMW crankshaft bearing shell, part number 11217849235. This component serves as a precision bearing surface to support the crankshaft within the engine block, reducing friction during rotation. It is designed for use in the engine assembly. This bearing is manufactured to exact tolerances to ensure proper oil film thickness and long-term engine reliability. Genuine OEM bearings are critical for maintaining factory-specified clearances, which is essential for preventing premature wear and ensuring smooth engine operation.