This oil seal is installed on the front axle shaft to retain lubricant and block contaminants from entering the bearing cavity. It sits between the rotating shaft and the stationary housing, forming a static and dynamic barrier. A worn seal allows grease loss and dirt ingress, which accelerates bearing wear and can lead to axle-side failure. The seal is manufactured by Corteco to match the original housing bore and shaft diameter, so the interference fit and lip pressure remain within design limits. On installation, ensure the sealing lip faces the lubricant side and that the shaft surface is free of burrs or grooves.