Genuine OEM Audi Engine Coolant Hose, part number 4G0121445P. This hose is a vital component of the engine cooling system, responsible for transporting coolant between various engine components to maintain optimal operating temperatures. It features a durable rubber construction, often reinforced with textile braiding for enhanced strength and heat resistance. Weighing 0.069 kg, it is designed for precise routing and secure connections. Using a genuine OEM coolant hose ensures proper material specifications and resistance to heat and pressure, preventing leaks and maintaining the efficiency and longevity of the cooling system.