Genuine OEM Volkswagen Coolant Hose, part number 2E0122447A. This hose is a critical component of the engine cooling system, responsible for circulating coolant to maintain optimal engine operating temperatures. It connects to the coolant expansion tank. Weighing 0.091 kg, this hose is manufactured to withstand high temperatures and pressures. Using a genuine OEM coolant hose ensures proper fitment, resistance to thermal cycling, and prevents leaks, which are vital for preventing engine overheating and damage.