Fits: Polaris Sportsman 500 1996-2013 Polaris Polaris Ranger 500 1999-2012 Polaris Magnum 500 1999-2003 Polaris Scrambler 500 1997-2012 Polaris Xplorer 500 1997 Polaris ATP 500 4X4 2004-2005 Polaris Sportsman X2 500 2006-2009 Polaris Big Boss 500 1998-2002 Polaris Worker 500 1999 2001 Description: Part Number: 3087221, 3087224, 3089966, 3086811, 3086200, 3085074, 3085371, 3085075 3085655, 3087170, 3085534, 3084890, 3089256, 3090293 Specifications: Type: Complete Cylinder Piston Gasket Set + Camshaft + Exhaust Rocker Arm Condition: 100% New Aftermarket Size: Bore x Stroke 92.00mm x 75.00mmv