This oil seal fits at the front axle, where it retains lubricant and excludes contaminants from the wheel-end or hub assembly. It sits between the rotating shaft and the stationary housing, forming a contact seal that prevents oil leakage and keeps dirt and moisture out of the bearing cavity. A worn or hardened seal allows lubricant to weep past the lip, which can lead to bearing starvation and eventual hub damage. The seal is an original component, manufactured to match the housing bore and shaft diameter of the assembly it replaces, so no adapters or shimming are required during installation. On reinstall, ensure the seal lip is not damaged and that the seating surface is clean and free of burrs.