Polaris Sportsman front differential kit with Sprague & Armature Plate 450 570
Polaris Sportsman front differential kit with Sprague & Armature Plate 450 570. This sprague has 24 rollers. This armature plate has 6 prongs. Updated sprague as of November, 2023. This differential kit comes with an upgraded pinion bearing. This bearing and seal kit works on the following Models: This Sprague Cage is made of hardened aluminum and is an upgrade to the OEM plastic cage. 2015 – 2016 4X4 Polaris Sportsman ETX 2016 – 2023 4X4 Polaris 450 Sportsman HO 2015 – 2023 4X4 Polaris 570 Sportsman NON SP 2015 – 2022 4X4 Polaris 570 Sportsman 570 Sportsman SP Diff # 1333371, 1333393, 1337140 2017 – 2022 6X6 Polaris 570 Sportsman Big Boss Diff # 1333371, 1333393, 1337140.