Genuine OEM Audi Crankshaft Toothed Belt Pulley, part number 038105263H. This essential engine component is mounted on the crankshaft and is responsible for transmitting rotational power to the toothed belt, which in turn drives critical engine systems like the camshaft. Its precise tooth profile ensures accurate timing and synchronization of engine components. Weighing 0.468 kg, this pulley is manufactured to exact specifications for optimal performance. Using genuine OEM crankshaft pulleys guarantees correct tooth engagement, material strength, and dimensional accuracy, which are vital for maintaining precise engine timing and preventing catastrophic engine damage.