YAMAHA PISTON RING KIT .020

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NAMURA ATV/UTV PISTON RING While still continuing with a proprietary alloy, we have found that these pistons outperform many of their Aluminum 4032 competitors in the market. Compa ring the two side by side, they both have very similar Elongation (%), Yield strength (kg/mm2), and Tensile Strength (Kg/mm2), But Namura's Forged pistons hold an expansion rate that is actually lower than 4032 forged aluminum. Giving you longer lasting build tolerances than our competitors All Namura pistons are: Molybdenum/Teflon coated and anodized domes. Most have machine smooth dome, if not, it will be noted. Piston Kits - comes with piston, rings, pin and clips. Show more