Off-road driving environments introduce mud, sand, and water that can rapidly damage unit bearings if left unprotected. These precision-fit bearing covers act as a barrier against debris, maintaining lubrication and extending bearing life. The 6061 aluminum construction and anodized finish ensure corrosion resistance and strength, while the O-ring seal keeps grease where it belongs — inside your hub. Whether you’re rock bouncing or trail running, these covers keep your Super Duty bearings performing at their best.