Genuine OEM Audi Coolant Line, part number 8V0121372. This right-side line is an integral part of the engine cooling system, responsible for circulating coolant to maintain optimal engine operating temperatures. It connects to other hoses and components within the cooling circuit. Weighing 0.077 kg, this hose is engineered for precise routing and durability. Using a genuine OEM coolant line ensures proper fitment, material resistance to heat and pressure, and prevents leaks, which are crucial for engine longevity.