This front prop shaft carrier bearing is used in many Polaris RZR 900 and 1000 models. This is one of the weak points in RZRs and are 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 number 3514748. Fits the following models and more: 2016-17 General 1000 (All Models) 2012-14 RZR 900 (All Models) 2014 RZR 1000 XP 2016-17 RZR Turbo (All Models)