Vertex 23551A Pro-HC Piston Kit for Yamaha YFZ450 / YFZ450R / YFZ450X - 94.95mm 2004 Ski-Doo MX-Z 800 Adrenaline 2007 Yamaha YZ250F

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Vertex 23551A Pro-HC Piston Kit for Yamaha YFZ450 / YFZ450R / YFZ450X - 94.95mm 2004 Ski-Doo MX-Z 800 Adrenaline 2007 Yamaha YZ250FPart Number: 23551A Manufactured from the highest quality aluminum alloys Vertex cast or forged piston kit with MSO2 coated piston skirt Available in unique piston profiles and compression ratios to maximize power. Piston kit includes rings, wrist pin, cir clips Made in the U. S. A. Manufactured from the highest quality aluminum alloys and tempered to a T 5 or T 6 hardening and tempering cycles. Vertex produces unique piston profiles and compression