Namura Technologies NA-50004-2K Top End Repair Kit - 0.50mm Oversize to 92.47mm

Bore: 92.47mm
Sizing: 0.50mm Oversize

Top End kit includes: piston, rings, wrist pin, clips, top end bearing, and gasket kit. MOS2 (Teflon/Molybdenum) Coated Skirts A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures. Machined Smooth Heads Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%. Anodized Domes Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistons. Hypereutectic Casting Process Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures.

Vehicle Fitment:

2004-2005 Polaris ATP 500
1998-1999 Polaris Big Boss 500 6x6
2002 Polaris Magnum 500 2x4
1999-2003 Polaris Magnum 500 4x4
2011-2013 Polaris Ranger 500 Crew
2013 Polaris Ranger 500 Crew LE
2012 Polaris Ranger 500 Crew Turbo Silver LE
2012-2013 Polaris Ranger 500 EFI
2012-2013 Polaris Ranger 500 EFI LE
1999-2005 Polaris Ranger 6x6 500
2001-2002 Polaris Scrambler 500 2x4
1997-2012 Polaris Scrambler 500 4x4
1996-2000 Polaris Sportsman 500 4x4
2006-2009 Polaris Sportsman 500 EFI
2007 Polaris Sportsman 500 EFI Deluxe
2008-2010 Polaris Sportsman 500 EFI Touring
2006-2009 Polaris Sportsman 500 EFI X2
2007 Polaris Sportsman 500 EFI X2 Deluxe
2001-2006 Polaris Sportsman 500 HO
2008-2013 Polaris Sportsman 500 HO
2012 Polaris Sportsman 500 HO Polaris Pursuite LE
2010-2013 Polaris Sportsman 500 HO Touring