Namura Forged Piston Kit P/N Fx-40032

100% CNC-machine piston domes Hard anodized domes for reduced carbon build-up Heat resistance and M0S2 coated skirts for excellent break-in protection and properties Carefully developed for the highest level of quality Unsurpassed in functionality and reliability Ready to serve reliably for years to come Forged Piston Kit (FX-40032) by Namura Technologies Inc.�. Piston size: 76.94 mm. Oversize: Standard. Namura Technologies Inc. Forged pistons offer dyno-proven gains in performance and durability over industry-standard 4032 forged pistons. Namura Technologies Inc.'s exclusive forged alloy offers lower expansion rates, allowing for tighter build tolerances and superior tensile and yield strength at operating temperatures. Pistons Rings Circlips

Bore: 76.94mm Sizing: Standard Bore MOS2 (made with 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. This item fits the following vehicle applications: compatible with Yamaha WR250F 2001-2004 compatible with Yamaha YZ250F 2001-2004