Genuine OEM Volkswagen Engine Vacuum Hose, part number 2H0133778B. This hose is a vital component in the engine's vacuum system, responsible for transporting vacuum pressure to various actuators and sensors that control critical engine functions. It ensures precise operation of components like the brake booster, EGR valve, or turbocharger wastegate. Weighing just 0.023 kg, this genuine OEM hose is engineered for exact routing and material resistance, preventing leaks and maintaining optimal engine performance.