This differential comes with a heavy duty hardened aluminum sprague and pinion bearing. Please note this differential will NOT WORK on the following OEM #'s due to a different gear ratio: 1333243 1334310 1333751 1334264 This FRONT differential is compatible with the following models: 2017 Ranger 499 ETX HDPE 2019 – 2021 Pro XD 2000D 2017 - 2020 Ranger 500 2015 - 2021 Ranger 570 / 570 Crew 2015 - 2021 Ranger 570 EPS Crew Mid Size 2015 - 2021 Ranger 570 Crew Full Size 2015 - 2021 Ranger 570 Full Size 2013 - 2019 Ranger 900 XP All options 2014 - 2019 Ranger 900 Crew all options 2011 - 2014 Ranger Crew 900 Diesel 2017 - 2020 Ranger 1000 Crew / Full Size / XP 2015 - 2018 Ranger 1000 Diesel / Diesel Crew 2011 - 2014 Ranger Diesel HST/Deluxe 2016 Ranger ETX 2016 - 2017 Ranger HST 2012 - 2022 RZR 570 2008 - 2014 RZR 800 / RZR 4 800 EFI / RZR S 800 2011 – 2014 Military RZR SW 800 EFI 2011 – 2016 Military RZR XP MV 900 / Military RZR4 XP MV 900 PS 2011 - 2014 RZR 4 900 (ALL) 2020 – 2023 RZR 900 S Trail 2014 – 2023 RZR 900 50/55 Inch all options 2015 - 2020 RZR 900 60 Inch 2011 - 2013 RZR XP 900 2013 RZR 4 XP Jagged X 2011 RZR 4/ EPS RGE 2013 – 2018 Brutus/HD/HD PTO 2014 - 2016 Sportsman ACE 325 EFI 2014 Sportsman ACE 2017 - 2019 ACE 500 SOCH 2015 - 2016 Sportsman ACE 570 EFI 2017 - 2018 ACE 570 EFI EURO