Description:

Wiseco Performance Piston Kit

Part Number:4419M08400

• 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.

Specs:

• Displacement: 357cc
• Bore-Standard: 83.00mm
• Bore-Actual: 84.00mm
• Bore-Oversize:1.00mm
• Stroke: 64.50mm
• Compression Ratio: 10.25:1

Images are for reference ONLY and maybe only categorical representations of items listed.

You WILLreceive theitem described above so please read the completedescription for all application and fitment indications.

Product Details

Items Included

Fitments

2014 Yamaha YFM350 Grizzly
2013 Yamaha YFM350 Grizzly
2012 Yamaha YFM350 Grizzly
2011 Yamaha YFM350 Grizzly
2010 Yamaha YFM350 Grizzly
2009 Yamaha YFM350 Grizzly
2008 Yamaha YFM350 Grizzly
2007 Yamaha YFM350 Grizzly
2013 Yamaha YFM350R Raptor
2012 Yamaha YFM350R Raptor
2011 Yamaha YFM350R Raptor
2010 Yamaha YFM350R Raptor
2009 Yamaha YFM350R Raptor
2008 Yamaha YFM350R Raptor
2007 Yamaha YFM350R Raptor
2006 Yamaha YFM350R Raptor
2005 Yamaha YFM350R Raptor
2006 Yamaha YFM350 Bruin
2005 Yamaha YFM350 Bruin
2004 Yamaha YFM350 Bruin
2004 Yamaha YFM350 Warrior
2003 Yamaha YFM350 Warrior
2002 Yamaha YFM350 Warrior
2001 Yamaha YFM350 Warrior
2000 Yamaha YFM350 Warrior
1999 Yamaha YFM350 Warrior
1998 Yamaha YFM350 Warrior
1997 Yamaha YFM350 Warrior
1996 Yamaha YFM350 Warrior
1995 Yamaha YFM350 Warrior
1994 Yamaha YFM350 Warrior
1993 Yamaha YFM350 Warrior
1992 Yamaha YFM350 Warrior
1991 Yamaha YFM350 Warrior
1990 Yamaha YFM350 Warrior
1989 Yamaha YFM350 Warrior
1988 Yamaha YFM350 Warrior
1987 Yamaha YFM350 Warrior
1999 Yamaha BW350T
1999 Yamaha YFM350 Moto-4
1999 Yamaha YFM350 WT Big Bear
1998 Yamaha YFM350 WT Big Bear
1997 Yamaha YFM350 WT Big Bear
1996 Yamaha YFM350 WT Big Bear
1995 Yamaha YFM350 WT Big Bear
1994 Yamaha YFM350 WT Big Bear
1993 Yamaha YFM350 WT Big Bear
1992 Yamaha YFM350 WT Big Bear
1991 Yamaha YFM350 WT Big Bear
1990 Yamaha YFM350 WT Big Bear
1989 Yamaha YFM350 WT Big Bear