Genuine OEM Audi Engine Coolant Pipe Adapter, part number 0P2121089. This adapter is designed to connect different sections of the engine coolant pipe, facilitating the proper routing and flow of coolant. It ensures a secure and leak-free connection within the cooling system. Weighing 0.022 kg, this component is crucial for maintaining the integrity of the coolant circuit. Using a genuine OEM adapter guarantees precise dimensions, material compatibility with coolant, and resistance to temperature and pressure, preventing leaks and ensuring reliable engine cooling.