Front Differential Rebuild Kit for Polaris RZR 570 / 800 / 900 2011 -2017Kit Include: A set of pre-assembled roll cage kit include 1 * roll cage, 20 pcs rollers and 20 pcs H-clips.1 * armature plate.A set of front differential Bearing & Seal kit include 3 * bearings and 5 * different seals.Fitment:For Polaris Brutus HD 4X4 2013-2015For Polaris Ranger 570 4X4 2015-2019For Polaris Ranger 800 RZR "S" & RZR '4" 2011-2014For Polaris Ranger 800 RZR 4X4 2011-2014For Polaris Ranger 900 4X4 2011-2017For Polaris Ranger Diesel 4X4 2011-2015For Polaris RGR 900D 4X4 2015For Polaris RZR 570 4X4 2012-2014For Polaris RZR 800 (Including RZR-S and RZR-4) 2011-2014For Polaris RZR 900 (All models except 2015-16 RZR-4 900) 2011-2016For Polaris Sportsman 325 Ace 4X4 2014-2016For Polaris Sportsman 570 Ace 4X4 2015-2017OEM Replacement:Roll Cage Sprague: 3234466, 3235261, 3234466, 3235263, 3234907Roller Kit : 3234393Armature Plate: 3234407