A very common failure that occurs on your 5.9L Cummins is the factory wheel bearing assemblies. Especially with the addition of larger, heavy offset wheel and tire packages. The added width creates added stress on the factory bearings. Replace your worn-out wheel bearing and hub assemblies with this replacement from Mevotech. Each wheel bearing features high grade rolling elements and precision polished raceways that minimize resistance and noise. The multi-point sealing system provides a barrier against road contaminants and moisture for a longer life.