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Ships within 48 hours · Estimated delivery Aug 2 - Aug 7
higher quality kit see our other items for sale
These pistons will work on any 93mm cylinder from any manufacturer
rings can make or break piston performance
Rebuilding your top end is the best way to restore lost horsepower and keep your CRF450R running like new
1999-2025 Yamaha YZ250 Cylinder Works STD Bore 66.40mm Top End Rebuilt Kit 20009 Badger 80 higher quality kit see our20009, 804M06640, 5CU 11631 00 A0, 5CU 11311 02 00, BR8ES, C3592,C7855,810670,P400485600267,8216DA,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 Fits Yamaha YZ250 1999 2025 New Stock Bore 66. 4mm Nikasil plated cylinder