Complete top end gasket kit for Cylinder Works big bore cylinders. Designed for +3mm overbore applications on Yamaha 250F engines. Made in the USA.
Piston, rings, and cylinder sold separately.
Direct fit for Cylinder Works big bore kits. No machine work required. Gaskets are precision cut for a perfect seal. High-quality materials handle extreme heat and pressure. Made in USA by Cylinder Works.
Yamaha YZ250F: 2001-2013
Yamaha WR250F: 2001-2013
Cylinder Works is a trusted name in powersports engine components. Their cylinders and gasket kits are manufactured in the USA to strict tolerances. Used by professional racers and weekend riders who demand reliability.
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