These rear shocks are compatible with the following models
2015 Polaris HAWKEYE 325 2X4
2011 – 2014 Polaris HAWKEYE 400 HO 2X4
2005 Polaris SPORTSMAN 400 Must be built before 9/06/04
2011 – 2014 Polaris SPORTSMAN 400 HO 4X4
2006 – 2007 Polaris SPORTSMAN 450 Must be built after 7/29/05
2016 – 2020 Polaris SPORTSMAN 450 ALL
2006 – 2014 Polaris SPORTSMAN 500 EFI NON TOURING
2013 Polaris SPORTSMAN 500 HD
2005 Polaris SPORTSMAN 500 HO NON TOURING Must be built before 9/06/04
2006 Polaris SPORTSMAN 500 HO NON TOURING Must be built after 7/29/05
2007 – 2013 Polaris SPORTSMAN 500 HO NON TOURING
2014 – 2020 Polaris SPORTSMAN 570 ALL EXCEPT SP 6X6
2005 Polaris SPORTSMAN 600 Must be built before 9/06/04
2005 Polaris SPORTSMAN 700 Must be built before 9/06/04
2006 Polaris SPORTSMAN 700 Must be built after 7/29/05
2007 Polaris SPORTSMAN 700
2006 – 2016 Polaris SPORTSMAN 800 EFI