Genuine OEM Audi Change Gear, part number 02M311145BH. This precision-engineered gear is a vital component within the vehicle's transmission, responsible for changing speeds and transmitting power efficiently between shafts. It is typically found within the gearbox assembly. Made from high-strength, hardened steel, it weighs 0.814 kg and has dimensions of 0.095 m x 0.095 m x 0.034 m. Choosing a genuine OEM change gear ensures exact tooth profiles, material hardness, and dimensional tolerances for smooth, reliable gear changes and a long service life of the transmission.