This PTO shaft seal is a gasket that sits between the output shaft housing and the drive assembly, preventing lubricant leakage and keeping contaminants out of the PTO driveline. It is located in the drive system at the point where the power take-off shaft exits the transmission housing. A worn seal allows oil to weep from the housing, which can lead to low lubricant levels and eventual bearing damage in the PTO assembly. This component is manufactured by AGCO and is machined to match the original seal groove geometry, so it seats correctly against the shaft without requiring additional shimming or modification. On installation, ensure the seal face is clean and lubricate the lip before pressing it into the housing.