Genuine OEM Audi Generator V-Ribbed Belt, part number 06E903137AA. This crucial V-ribbed belt is specifically designed to drive the generator, enabling it to produce the electrical power necessary for the vehicle's systems and battery charging. Its multi-ribbed profile ensures efficient power transfer and consistent tension. With an approximate length of 1.13 meters and weighing about 0.219 kg, using a genuine OEM belt guarantees the correct dimensions, material durability, and precise fitment for reliable electrical system function and longevity.