Genuine OEM Audi Water Box Seal, part number 4K0823723A. This seal is crucial for preventing fluid leakage from the water box, protecting underlying electrical and mechanical components from moisture ingress. It forms a watertight barrier around the water box opening. Made from durable rubber, it measures approximately 1.398 meters in length and weighs 0.52 kg. Using a genuine OEM seal ensures the correct material elasticity, precise dimensions, and resistance to environmental factors, providing a long-lasting and effective barrier against water damage.