The 2012 Polaris RZR RZR4 900 Transmission is a genuine oem . This transmission is specifically designed for the 2012 model year and comes with the manufacturer part number 1332995. Refresh rebuilt ready to put in you machine. Will fit other model 900 It is important to note that this product may have California Prop 65 Warning, please check the warning label before purchasing. This transmission is essential for maintaining the proper functionality and performance of your Polaris RZR RZR4 900.