Kibblewhite Cast Iron Valve Seat 10-Sc290

• Premium valve seats for applications using steel valves
• A specific combination of alloys allowed a creation of a 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 today's 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
• Made in the U.S.A.
• Verify size before ordering.

Honda -- CRF250X -- (2012, 2010, 2013, 2011, 2016, 2014, 2015, 2007, 2006, 2004, 2009, 2005, 2008); Honda -- CRF250R -- (2004, 2008, 2005, 2006, 2009, 2007); Yamaha -- WR 450 F -- (2005, 2008, 2009, 2007, 2006, 2003, 2004); Yamaha -- YZ 450 F -- (2008, 2005, 2006, 2009, 2007, 2003, 2004); Yamaha -- YFZ 450R 4x2 -- (2014, 2010, 2018, 2012, 2015, 2017, 2009, 2011, 2013, 2016); Yamaha -- YFZ 450R SE 4x2 -- (2011, 2017, 2014, 2016, 2018, 2013, 2015, 2019, 2012, 2010)