Replacement crankshaft main bearing and seal kit.A quality alternative to expensive OEM bearings and seals. Polaris -- Sportsman 500 H.O. 4x4 -- (2003, 2013, 2001, 2009, 2012, 2005, 2006, 2008, 2010, 2011); Polaris -- ATP 500 H.O. 4x4 -- (2004, 2005);...