Kibblewhite Precision 10-SC290 Iron Alloy Valve Seat for Steel Valve

All applications listed use two intake and 2 exhaust seats unless otherwise noted.
Head Diameter: 29mm.
1.142in. x .827in. x .375in. OD x ID x Height.

Premium valve seats for applications using steel valves. A specific combination of alloys allowed a creation of high density, iron-based valve seat with uniform hardness, exceptional thermal qualities and high resistance to wear and recession caused by microwelding. Only by using the latest developments in powdered metal technology were we able to blend these alloys to give a seat material with the qualities required for todays engines. These seats have been tested on the track and street in high RPM applications with leaded, unleaded, and oxygenated fuel, as well as methanol, ethanol, nitrous, and forced induction applications. Sold each. Made in the USA.

Vehicle Fitment:

2004-2009 Honda CRF250R
2004-2009 Honda CRF250X
2012-2013 Honda CRF250X
2015-2016 Honda CRF250X
2003-2009 Yamaha WR450F
2011-2016 Yamaha WR450F
2004-2009 Yamaha YFZ450
2012-2013 Yamaha YFZ450
2006-2007 Yamaha YFZ450 Bill Balance Edition
2007-2008 Yamaha YFZ450 SE
2009-2017 Yamaha YFZ450R
2009-2017 Yamaha YFZ450R SE
2010-2011 Yamaha YFZ450X
2010 Yamaha YFZ450X Bill Balance
2011 Yamaha YFZ450X SE
2003-2009 Yamaha YZ450F