Genuine OEM Audi Engine Coolant Hose, part number 04L122157H. This hose is a vital component of the engine cooling system, responsible for carrying coolant between various engine components to maintain optimal operating temperatures. It is a short, curved hose connecting specific points within the cooling circuit. With a length of approximately 0.084m, this hose is constructed from durable, heat-resistant materials. Using a genuine OEM coolant hose ensures precise fitment, correct fluid resistance, and long-term reliability for critical engine cooling.