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  • Namura Forged Top End Piston Rebuild Kit 76.97mm +.01 OB

Namura Forged Top End Piston Rebuild Kit 76.97mm +.01 OB


$ 251.95

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Product Information


: FX-40037-BK-672


: FX-40037-BK


: Top End Rebuild Kit



Namura's Top End kit is ideal for replacing worn parts and making some upgrades. Machined Smooth heads, available for certain models, can increase horsepower and fuel economy while reducing carbon buildup.

  • 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
  • Piston Size: 76.97mm

This part is compatible with 15

Year Make Model Submodel
2015 Yamaha YZ250FX --
2016 Yamaha YZ250FX --
2014 Yamaha YZ250F --
2015 Yamaha YZ250F --
2016 Yamaha YZ250F --
2017 Yamaha YZ250F --
2015 Yamaha WR250F --
2016 Yamaha WR250F --
2017 Yamaha WR250F --
2018 Yamaha YZ250F --
2018 Yamaha WR250F --
2019 Yamaha WR250F --
2017 Yamaha YZ250FX --
2018 Yamaha YZ250FX --
2019 Yamaha YZ250FX --
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