Seller notes

Fits 2013 Yamaha YFZ450R SE Top End Kit,br> All pistons are heat treated with a T 5 hardening and tempering cycle. Piston skirts coated with high tech Molybdenum Disulphite coating. Gravity cast aluminum alloy or forged pistons available. High compression and big bore options. Includes all necessary components for a complete top end rebuild. All pistons are heat treated with a T-5 hardening and tempering cycle. All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faste...

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