Genuine OEM Audi Engine Coolant Hose, part number 3WA122051N. This critical component is responsible for transporting engine coolant between various cooling system parts, such as the engine and radiator, to maintain optimal operating temperatures. It is positioned within the engine cooling assembly, connecting key components. Weighing 0.642 kg, this hose is constructed from durable materials designed to withstand high temperatures and pressures. Choosing a genuine OEM coolant hose ensures correct routing geometry, resistance to chemical degradation, and a secure, leak-free connection for reliable engine cooling.