Genuine OEM Audi Engine Coolant Hose, part number 1EA121449J. This hose is a vital component of the engine cooling system, responsible for circulating coolant to maintain optimal engine operating temperatures. It is located within the engine bay, connecting various cooling system components. Constructed from high-quality, heat-resistant rubber, it measures approximately 32.5 cm in length. Using a genuine OEM coolant hose ensures resistance to extreme temperatures and pressures, preventing leaks and maintaining cooling system integrity.