Genuine OEM Audi Crankshaft Toothed Belt Pulley, part number 038105263E. This critical engine component is responsible for driving the toothed belt directly from the crankshaft, which is essential for maintaining accurate engine timing. It is a key part of the engine's belt drive system. Made from durable metal with precision-machined teeth, it weighs 0.364 kg and measures 0.066m in diameter and 0.037m in height. A genuine OEM pulley ensures correct tooth profile and material strength for reliable power transmission and long service life.