This front prop shaft carrier bearing is used in many Polaris Ranger Crew models. This is one of the weak points in the Rangers and is constantly being abused and put to the test so they wear out quickly. The bearing will freeze to the shaft then it rips the rubber apart. Replace it before it does damage to your drive train and leave you stranded. This bearing is also designed to reduce vibration and noise that can happen with the stock bearing. Sold Each. Exact replacement for Polaris part numbers 3514806 and 3514900.