The Mercedes-Benz A0109979347 is a genuine OEM sealing ring, also known as a shaft seal ring (Wellendichtring). Designed for critical sealing applications, it features precise dimensions of 100 mm inner diameter, 110 mm outer diameter, and 5 mm thickness. This high-quality seal is essential for maintaining fluid integrity and preventing leaks in various Mercedes-Benz agricultural machinery, including MB Trac series, as well as trucks and buses, ensuring optimal performance and longevity of components.