Genuine OEM Audi Engine Coolant Hose, part number 4K0145919P. This essential hose is designed to circulate engine coolant throughout the cooling system, playing a critical role in regulating engine temperature and preventing overheating. It is positioned within the engine cooling circuit, connecting various components. This hose is engineered to withstand high temperatures and pressures, measuring approximately 0.265m in length. Choosing a genuine OEM coolant hose ensures the correct routing geometry, material composition, and resistance to thermal cycling, preventing leaks and maintaining the integrity of the cooling system.