Seller notes

Fits 1997 Polaris Big Boss 400L 6x6 Piston Kit RAD Powersports OEM Style Piston Kit .040 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 horsepowe...

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