Yamaha YZ250 YZ 250 Stock Top End Rebuild Kit Cylinder ProX Pro X Piston Cometic
20009,01.2321.A,804M06640, 5CU-11631-00-A0, 5CU-11311-02-00, BR8ES, C3592,C7855,8216DA,01.2321.B,01.2321.C
Get your dirt bike firing on all cylinders with the Yamaha YZ250 YZ 250 Top End Rebuild Kit. This complete top end overhaul breathes new life into your 2-stroke with upgraded performance parts ready to rip up the track.
Cylinder, Piston, Gaskets, Spark Plug
- New Stock Bore 66.4mm Nikasil-plated cylinder maintains compression and cooling (1 Year Warranty)
- ProX Racing Parts OEM Stock Bore Piston Kit - MADE IN JAPAN
- OEM Spec Piston Rings, Wristpin, & Circlips
- Cometic gasket kit ensures a reliable, leak-free seal
- NGK Spark Plug to make sure it fires right up
Give your YZ250 a new lease on life. This top-shelf rebuild kit includes a OEM-spec Nikasil-plated cylinder, ProX piston, rings, wristpin, circlips, and Cometic gaskets - everything you need for a complete top end rebuild. Factory-fresh power and performance is just a wrench turn away.
Rebuilding the top end restores compression and horsepower to keep your YZ250 ripping laps. This kit is made for the weekend warrior who wants their trusty steed to keep charging year after year. Breathe new life into your 2-stroke and save big over buying brand new OEM parts.
5CU-11631-00-A0, 5CU-11631-00-B0, 5CU-11631-00-C0, 5CU-11631-00-D0, 5CU-11603-10-00, 5CU-11603-00-00, 5CU-11633-10-00, 5CU-11633-00-00, 93450-19052-00, 5CU-11311-02-00, 5CU-11311-00-00, 5CU-11351-10-00, 5CU-11351-00-00, 93211-02703-00, 93210-74316-00, 93210-15639-00