Wiseco 4906M09800 Piston Kit for Yamaha YFZ450 / YFZ450R / YFZ450X

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Part Number: 4906M09800 These kits contain everything you need to complete your piston repair, the first time High Performance ring kit and alloy pin included with each piston kit for extended life and sustained power. Dedicated forgings used for superior strength to weight ratio utilizing aerospace alloy. All Piston Kits are precision crafted and forged in the USA Wiseco's Piston Kits are offered for nearly every popular application in the powersports market. These kits contain everything you need to complete your piston repair, the first time. High quality parts specifically chosen by us to match our forged pistons are included in this kit for easy one stop shopping. 2-stroke kits feature our Pro-Lite pistons that are CNC machined for optimal cam shape and profile for peak HP and service life. 4-stroke kits feature a race-ready dome finish with smooth edges for improved combustion flow. Horizontal slot-pin oiling reduces friction and provides scuff resistance, along with a pressure seal groove for maximum ring seal. 4-stroke race applications feature Wiseco's Armor Glide skirt coating to provide reduced friction and noise to contribute to increased horsepower. Each piston is built from race proven designs that are chosen by the top race teams in all forms of racing including Supercross, Motocross, GNCC, Super-bike, and more. Fits:2004-13 Yamaha YFZ450 2009-13 Yamaha YFZ450R 2011 Yamaha YFZ450X Specs: Bore-Standard: 95.00mm Bore-Actual: 98.00mm Bore-Oversize: 3.00mm Items Included Fitments 2013 Yamaha YFZ450 2012 Yamaha YFZ450 2009 Yamaha YFZ450 2008 Yamaha YFZ450 2007 Yamaha YFZ450 2006 Yamaha YFZ450 2005 Yamaha YFZ450 2004 Yamaha YFZ450 2013 Yamaha YFZ450R 2012 Yamaha YFZ450R 2011 Yamaha YFZ450R 2010 Yamaha YFZ450R 2009 Yamaha YFZ450R 2011 Yamaha YFZ450X Show more