Genuine OEM Volkswagen Upper Cooler Seal, part number 7E0121345. This component is designed to create a secure, leak-proof barrier for the upper section of the engine's cooling system cooler, preventing the escape of coolant and maintaining proper operating temperatures. It is positioned along the top edge of the cooler assembly. This seal is a flexible strip, approximately 0.53 meters long, made from durable material resistant to heat and coolant. Using a genuine OEM seal ensures precise dimensions and material composition, critical for preventing leaks and maintaining the integrity of the cooling system under varying thermal conditions.