Genuine OEM Audi Transmission Oil Sump Gasket, part number 09P321370. This gasket is essential for sealing the transmission oil sump, preventing fluid leaks and maintaining the correct fluid level and pressure within the transmission. It measures approximately 0.40 meters in length and 0.25 meters in width, with a height of 0.017 meters, and weighs about 0.17 kg. Using a genuine OEM gasket ensures the correct material and precise dimensions for a perfect, long-lasting seal, critical for transmission health and longevity.