Genuine OEM Volkswagen Engine Vacuum Hose, part number 4M0133778. This hose is responsible for carrying vacuum pressure to various engine components, supporting functions such as emissions control, brake boosting, or turbocharger regulation. It is located within the engine's intake and vacuum system. Weighing 0.0278 kg and measuring 0.55m in length, this hose is designed to maintain vacuum integrity and resist collapse under suction. Choosing a genuine OEM vacuum hose guarantees the correct material flexibility and resistance to engine bay temperatures, ensuring reliable performance of critical engine systems.