Genuine OEM Audi Valve Cover Breather Hose, part number 06A103493BD. This molded rubber elbow hose is an essential component of the engine's crankcase ventilation system, allowing harmful crankcase gases to vent properly. It connects to the valve cover, ensuring efficient engine operation and emissions control. Weighing approximately 0.03 kg and featuring a 90-degree bend, this hose is made from durable, heat-resistant rubber. Using genuine OEM hoses ensures correct routing, material compatibility with engine fluids, and long-term resistance to heat and oil degradation.