Genuine OEM BMW Upper Crankshaft Bearing Shell, part number 11217841610. This bearing shell supports the crankshaft within the engine block, significantly reducing friction and wear during operation. It is a critical component for maintaining engine health and performance. Made from durable materials with precise tolerances, genuine OEM bearing shells ensure optimal lubrication and longevity. Genuine BMW parts are manufactured to exact specifications, guaranteeing correct fitment and performance for the engine's internal components.