Genuine OEM Audi Exhaust System Hose, part number 4H0131850H. This hose serves as a critical connection within the exhaust system, often facilitating emissions control or pressure sensing functions. It is located near the catalytic converter assembly. Weighing 0.0451 kg, this hose is designed for specific routing and to withstand the demanding conditions of the exhaust environment. Choosing a genuine OEM hose ensures correct material composition, heat resistance, and precise fitment for reliable emissions system performance.