Genuine OEM Audi Coolant Pipe, part number 7E0121065BS. This vital component is responsible for circulating coolant between various engine components, playing a crucial role in regulating engine temperature and preventing overheating. It is a rigid pipe within the engine cooling system. Weighing approximately 0.261 kg, this pipe is engineered for durability and resistance to high temperatures and pressures. Choosing a genuine OEM coolant pipe ensures correct routing geometry, proper material composition, and leak-free connections, which are essential for the long-term reliability of the cooling system.