Genuine OEM Audi Engine Coolant Hose, part number 8W0121054C. This hose is essential for transporting coolant within the engine cooling system, maintaining optimal engine operating temperatures. It is positioned within the coolant circuit, connecting various components. Measuring 85mm long, 40mm wide, and 28mm high, it is designed for a precise fit. Using a genuine OEM coolant hose ensures it can withstand high temperatures and pressures, preventing leaks and maintaining cooling system integrity.