Genuine OEM Audi Engine Heating Hose, part number 9J1815561. This hose is designed to circulate heated fluid within the engine system, playing a crucial role in temperature management. It is positioned as part of the engine's fluid circulation network. Weighing 0.092 kg with a length of 0.2 m, it is engineered for precise fit. Choosing a genuine OEM hose ensures correct routing geometry and resistance to thermal and chemical degradation for reliable, leak-free performance.