Genuine OEM Audi Cooling System Pipe Union, part number 7P0121065M. This essential component serves to connect multiple sections of piping within the engine cooling system, facilitating the flow of coolant. It is located within the engine bay, integrating various cooling hoses. With dimensions of approximately 0.15m length, 0.065m width, and 0.06m height, and weighing 0.105 kg, this genuine OEM pipe union ensures a precise, leak-free connection and resistance to temperature and pressure fluctuations, critical for maintaining engine cooling efficiency.