Genuine OEM Audi Crankshaft Pulley, part number 038105263F. This pulley transfers rotational power from the crankshaft to both engine accessories and the timing system. Weighing 0.449 kg, it is crucial for driving components like the alternator, power steering pump, and air conditioning compressor. Genuine OEM crankshaft pulleys are engineered for precise balance and durability, minimizing vibrations and ensuring reliable power transmission throughout the engine.