Genuine OEM Audi Cooling System Flange, part number 038121132D. This critical component is designed to connect various hoses and sensors within the engine's cooling circuit, facilitating the precise flow of coolant and maintaining optimal engine temperature. Made from durable plastic, it weighs 0.176 kg and measures 0.185m x 0.09m x 0.065m. Using a genuine OEM flange ensures exact fitment, leak-free connections, and resistance to thermal cycling and chemical degradation, which are vital for the longevity of the cooling system.