NAMURA NA-40012-B Piston Kit for Yamaha ATV

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

Restore dependable engine performance with the NAMURA NA-40012-B piston kit for compatible Yamaha ATV applications. Designed as a replacement engine component, this kit supports the repair or rebuilding of an ATV piston assembly when the original piston has experienced wear, damage, or loss of performance. The NAMURA brand is recognized for replacement powersports engine components built to support practical maintenance and repair needs.
Verify vehicle compatibility before ordering by matching the NAMURA part number NA-40012-B with the ATV’s year, make, model, engine specifications, and existing piston application. Yamaha ATV