Genuine OEM Audi Engine Oil Pump Follower, part number 03G115281E. This critical hexagonal metal shaft is responsible for transferring rotational motion within the engine oil pump mechanism, ensuring proper lubrication throughout the engine. It is an internal component of the oil pump assembly. Made from durable metal, it weighs 0.024 kg and measures 0.1m in length. Using genuine OEM oil pump followers ensures precise material hardness and dimensional accuracy, which are vital for reliable engine lubrication and preventing catastrophic engine failure due to oil starvation.