This sealing ring is an original AGCO component that creates a static seal between two mating surfaces in the drivetrain assembly. It sits in a machined groove and prevents oil leakage from the housing under operating pressure and temperature. A worn or compressed ring loses its ability to maintain a consistent seal, which results in visible oil seepage at the joint. The ring is molded to the same cross-section profile as the original factory part, so it seats fully into the groove without requiring additional sealant or shimming. On installation, ensure the groove is clean and free of debris before pressing the ring into place.