This front axle oil seal retains lubricant inside the axle housing while excluding contaminants such as dirt and water from the wheel-end bearing cavity. It sits at the interface between the rotating axle shaft and the stationary housing, using a flexible lip to maintain a dynamic seal under normal operating speeds and temperatures. A worn or hardened seal allows lubricant to weep past the lip, leading to gradual oil loss and eventual bearing contamination if left unaddressed. Corteco manufactures this seal to match the original housing bore and shaft dimensions, preserving the interference fit that keeps the lip in contact with the shaft without requiring additional shimming or adapters. On installation, ensure the seal bore is clean and free of burrs, and drive the seal squarely into the housing to avoid distorting the lip.