- 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.
- Outside Diameter: 31.00mm
- Inside Diameter: 23.00mm
- Valve Seat Height: 9.50mm
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2003-2009 | Yamaha | WR450F | |
| 2011-2016 | Yamaha | WR450F | |
| 2004-2009 | Yamaha | YFZ450 | |
| 2012-2013 | Yamaha | YFZ450 | |
| 2009-2017 | Yamaha | YFZ450R | |
| 2016 | Yamaha | YFZ450R Special Edition | |
| 2017 | Yamaha | YFZ450RSE | |
| 2009-2015 | Yamaha | YFZ450RSE Special Edition | |
| 2007 | Yamaha | YFZ450SE Special Edition | |
| 2008 | Yamaha | YFZ450SP Special Edition | |
| 2006-2007 | Yamaha | YFZ450V Bill Balance Edition | |
| 2010-2011 | Yamaha | YFZ450X | |
| 2010 | Yamaha | YFZ450X Bill Balance Edition | |
| 2011 | Yamaha | YFZ450XSE Special Edition | |
| 2003-2009 | Yamaha | YZ450F | |