Namura Technologies NA-40011-2 Piston Kit - 0.50mm Oversize to 84.95mm

Bore: 84.95mm
Sizing: 0.50mm Oversize

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:

2007-2008 Yamaha YFM450 Grizzly 4x4 Auto
2011-2014 Yamaha YFM450 Grizzly 4x4 Auto
2011-2014 Yamaha YFM450 Grizzly 4x4 Auto EPS
2009-2010 Yamaha YFM450 Grizzly 4x4 Auto IRS
2003-2006 Yamaha YFM450F Kodiak Auto 4x4
2006-2010 Yamaha YFM450FX Wolverine 4x4
2006-2009 Yamaha YXR45F Rhino 450
2007-2008 Yamaha YXR45F Rhino 450 Special Edition