Genuine OEM Audi Cooling System Flange, part number 038121144A. This plastic flange serves as a crucial connection point within the engine cooling system, allowing hoses to attach securely to various components. Measuring approximately 7.7 cm in length, it features two bolt holes for mounting and a hose outlet. Using a genuine OEM flange ensures a leak-free seal and proper fitment, critical for maintaining the integrity and efficiency of the cooling system under varying temperatures and pressures.