Brand new 3/8-24 x 1-1/2" overall length press in REAR wheel studs for the RZR 800/900. Exact replacement for Polaris 7518378. Sold as a set of FOUR. Fits the rear hubs on the following models: 2008-14 RZR 800 (ALL Models) 2011-14 RZR 900 (ALL Models) 2010-14 Ranger 400 2009-13 Ranger 500 2014-16 Ranger 570 2006-09 Ranger 700 2010-14 Ranger 800 2015-16 Ranger ETX 2006 and newer Sportsman 300, 400, 500, 570, 700, 800, ETX, and the ACE 325/570. Includes Sportsman Touring and X2 models. Also fits 2011-15 Hawkeye models and the 2006-13 Trailboss/Trailblazer 330