Seller notes

Piston Kit - 0.50mm Oversize to 72.46mmThis Namura Piston Kit fits your 1988 1987 1986 1985 Polaris Trail Boss 250R/ES and is perfect for a tune up or performance upgrade. Namura Piston Kit for 1985-1988 Polaris Trail Boss 250R ES - Engine Pistons ru Status: In Stock Condition: New RELY ON THE BEST TECHNOLOGY: 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, r...

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