Genuine OEM Volkswagen Engine Crankcase Breather Hose, part number 079103209AM. This hose is an integral part of the engine's positive crankcase ventilation (PCV) system, designed to allow blow-by gases to escape from the engine crankcase, preventing pressure buildup and oil contamination. It features a black, corrugated design with specific plastic connectors on both ends, weighing approximately 0.04 kg. Genuine OEM breather hoses ensure a perfect seal and resistance to oil vapor and engine heat, preventing vacuum leaks and maintaining proper engine emissions and performance.