Genuine OEM Volkswagen Crankshaft Bearing Shell, part number 03L105701FGLB. These bearing shells are critical components of the engine's crankshaft assembly, providing a low-friction surface for the crankshaft to rotate on. They are typically made of durable metal alloys. Genuine OEM bearing shells are manufactured to precise tolerances, ensuring proper oil clearance and minimizing wear for a long service life.