Fits:Polaris300 Hawkeye 2x4 2006-11 (lower), 300 Hawkeye 4x4 2006-07 (lower), 300 Sportsman 4x4 2008-10 (lower), 400 Sportsman HO 4x4 2008-10 (lower), 500 Ranger EFI 4x4 2009-10 (lower and upper), 500 Ranger HO 4x4 2010 (lower and upper), 550 Sportsman 4x4 2010-13 (lower and upper), 550 Sportsman EPS 4x4 2010-13 (lower and upper), 550 Sportsman Touring 4x4 2010-13 (lower and upper), 550 Sportsman X2 4x4 2010-13 (lower and upper), 550 Sportsman XP 4x4 2009 (lower and upper), 570 RZR 4x4 2012-13 (lower and upper), 700 Ranger XP 4x4 2009 (lower and upper), 800 Ranger 6x6 2010-13 (lower and upper), 800 Ranger Crew 4x4 2010-13 (lower and upper), 800 Ranger HD 4x4 2010-11 (lower and upper), 800 Ranger XP 4x4 2010-12 (lower and upper), 800 RZR 4 4x4 2010-12 (lower and upper), 800 RZR 4x4 2008-12 (lower and upper), 800 RZR S 4x4 2009-12 (lower and upper), 850 Scrambler HO 4x4 2013 (lower and upper), 850 Scrambler HO EPS 4x4 2013 (lower and upper), 850 Sportsman Forest 4x4 2011-13 (lower and upper), 850 Sportsman Touring EPS 4x4 2011-13 (lower and upper), 850 Sportsman Touring HO EPS 4x4 2013 (lower and upper), 850 Sportsman X2 4x4 2011 (lower and upper), 850 Sportsman XP 4x4 2009-13 (lower and upper), 850 Sportsman XP EPS 4x4 2011-13 (lower and upper), 900 Ranger Diesel 4x4 2011-13 (lower and upper), 900 Ranger Diesel Crew 4x4 2012-13 (lower and upper), 900 RZR XP 4x4 2011 (lower and upper)Excellent quality replacement partIncludes ball joint, rubber boot, snap ring, cotter pin, washer and nutHigh quality inner ball cageRelief hole for moistureComponents vary by model2 required per vehicle