This oil seal is installed on the front axle of the host tractor. It retains lubricating oil inside the axle housing and prevents contaminants from entering the bearing cavity. The seal sits between the rotating axle shaft and the stationary housing, relying on a precision-molded lip to maintain contact under normal operating conditions. A leaking seal allows oil to escape, which can lead to bearing starvation and eventual axle failure. The manufacturer produces this seal to match the original housing bore and shaft dimensions, so no modification or adapter is required during replacement. On reinstall, ensure the seal is pressed squarely into the bore and that the sealing lip is not nicked or rolled.