Top End Kit 99.97/Std 11:1 Yam

Features:

• 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

Fitment:
Yamaha YFM660FG Grizzly 4WD [IRS] 2002
Yamaha YFM660FG Grizzly 4WD [IRS] 2003
Yamaha YFM660FG Grizzly 4WD [IRS] 2004
Yamaha YFM660FG Grizzly 4WD [IRS] 2005
Yamaha YFM660FG Grizzly 4WD [IRS] 2006
Yamaha YFM660FG Grizzly 4WD [IRS] 2007
Yamaha YFM660FG Grizzly 4WD [IRS] 2008
Yamaha YXR660F Rhino 660 2004
Yamaha YXR660F Rhino 660 2005
Yamaha YXR660F Rhino 660 2006
Yamaha YXR660F Rhino 660 2007