Genuine OEM Porsche Shaft Sealing Ring, part number 99630351700. This sealing ring is designed to fit around the transmission shaft, effectively preventing oil from leaking out of the transmission housing. Its proper function is vital for maintaining lubrication levels and protecting internal transmission components. Manufactured with high-quality materials to ensure a reliable seal under pressure and temperature. Genuine OEM seals provide the exact fit and sealing performance required for transmission longevity.