Premium materials produce the best sealing technology available exceeding O.E.M. standards. 2-Stroke: Wiseco top end gasket kit; Dedicated forging; Superior strength/weight ratio utilizing Aerospace alloy; Race-proven designs; Chosen by top race teams, in all forms of racing; CNC machined; Optimal cam shape and profile for peak HP and service life; Premium top end needle bearing; Precision-machined, highest-quality materials for strength and reduced friction; High-performance ring set; Extended life and sustained power; Highest-quality alloy pin; Consistently true and durable. 4-Stroke: Wiseco top end gasket kit; Premium materials produce the best sealing technology available, exceeding O.E.M. standards; Dedicated forging; Superior strength/weight ratio utilizing Aerospace alloy; Dome design; Improved flame travel; Chrome plated piston pin; Horizontal slot pin oiling; Reduced friction/scuff resistant; Pressure seal groove; Maximum ring seal; Armor Glide Skirt-Coated available for select models; Dedicated Rings; Maximum compression and oil control.

This Part Fits:

Year	Make	Model	Submodel
2004-2005	Polaris	ATP 500	Base
1998-1999	Polaris	Big Boss 500 6x6	Base
1999-2003	Polaris	Magnum 500 4x4	Base
2008-2012	Polaris	Scrambler 500 4x4	Base
1996-2000	Polaris	Sportsman 500 4x4	Base
2001-2006,2008	Polaris	Sportsman 500 HO	Base
1997	Polaris	Xplorer 500 4x4	Base