Kibblewhite Precision 10-SB280 replacement valve Seat for Titanium replacement valve

Head Diameter: 28mm.
O.D.: 1.102in.
I.D.: .827in.
Height: .375in.
All years of the fits YAM YZ/WR250F are 5-replacement valve engines using three intake seats and two exhaust seats.

Copper-based material designed specifically for use with titanium valves in high performance applications. Gives the seat excellent thermal characteristics as well as resistance to corrosion and wear. These seats are the result of a two year KPMI R&D effort during which we recorded and verified results with 4 and 5 replacement valve singles, multi cylinder street bikes, as well as British and European 4-strokes. In each test the wear, thermal conductivity and machinability surpassed the standards we set for success. These seats are used by succsessful builders around the world in all forms of . Sold each. Made in the USA.

This item fits the following vehicle applications:
2010-2016 fits HON CRF250R
2004-2016 fits KAW KX250F
2004-2016 fits SUZ RM-Z250
2001-2009 fits YAM WR250F
2011-2013 fits YAM WR250F
2001-2013 fits YAM YZ250F