PROX offers you this intake valve II for your Yamaha YZ 450 F. As usual, PROX manufactures this valve in the best possible materials to guarantee excellent performance and reliability in your engine. This valve has the same characteristics as your motorcycle's original valve. So you won't need to make any adjustments. As you can see, PROX titanium is a good alternative for repairing your engine at lower cost with quality products.

Fits on:

GAS GAS EC 450 F 2015 Racing EUROPE

GAS GAS EC 450 F 2014 Racing EUROPE

GAS GAS EC 450 F 2013 EUROPE

YAMAHA WR 450 F 2015 AMERICA

YAMAHA WR 450 F 2015 EUROPE

YAMAHA WR 450 F 2014 AMERICA

YAMAHA WR 450 F 2014 EUROPE

YAMAHA WR 450 F 2013 AMERICA

YAMAHA WR 450 F 2013 EUROPE

YAMAHA WR 450 F 2012 AMERICA

YAMAHA WR 450 F 2012 EUROPE

YAMAHA WR 450 F 2011 EUROPE

YAMAHA WR 450 F 2011 AMERICA

YAMAHA WR 450 F 2010 EUROPE

YAMAHA WR 450 F 2010 AMERICA

YAMAHA WR 450 F 2009 EUROPE

YAMAHA WR 450 F 2009 AMERICA

YAMAHA WR 450 F 2008 EUROPE

YAMAHA WR 450 F 2008 AMERICA

YAMAHA WR 450 F 2007 AMERICA

YAMAHA WR 450 F 2007 EUROPE

YAMAHA WR 450 F 2006 EUROPE

YAMAHA WR 450 F 2006 AMERICA

YAMAHA WR 450 F 2005 EUROPE

YAMAHA WR 450 F 2005 AMERICA

YAMAHA WR 450 F 2004 EUROPE

YAMAHA WR 450 F 2004 AMERICA

YAMAHA WR 450 F 2003 EUROPE

YAMAHA WR 450 F 2003 AMERICA

YAMAHA YFZ 450 2009 AMERICA

YAMAHA YFZ 450 2008 AMERICA

YAMAHA YFZ 450 2007 AMERICA

YAMAHA YFZ 450 2006 AMERICA

YAMAHA YFZ 450 2005 AMERICA

YAMAHA YFZ 450 2004 AMERICA

YAMAHA YFZ 450 BB 2007 Bill Ballance Edition AMERICA

YAMAHA YFZ 450 BB 2006 Bill Ballance Edition AMERICA

YAMAHA YFZ 450 LE 2004 Limited Edition AMERICA

YAMAHA YFZ 450 R 2025

YAMAHA YFZ 450 R 2024

YAMAHA YFZ 450 R 2023

YAMAHA YFZ 450 R 2022

YAMAHA YFZ 450 R 2021

YAMAHA YFZ 450 R 2020

YAMAHA YFZ 450 R 2019

YAMAHA YFZ 450 R 2018 AMERICA

YAMAHA YFZ 450 R 2017 EUROPE

YAMAHA YFZ 450 R 2017 AMERICA

YAMAHA YFZ 450 R 2016 EUROPE

YAMAHA YFZ 450 R 2016 AMERICA

YAMAHA YFZ 450 R 2015 AMERICA

YAMAHA YFZ 450 R 2015 EUROPE

YAMAHA YFZ 450 R 2014 AMERICA

YAMAHA YFZ 450 R 2014 EUROPE

YAMAHA YFZ 450 R 2013 AMERICA

YAMAHA YFZ 450 R 2013 EUROPE

YAMAHA YFZ 450 R 2012 AMERICA

YAMAHA YFZ 450 R 2012 EUROPE

YAMAHA YFZ 450 R 2011 AMERICA

YAMAHA YFZ 450 R 2010 AMERICA

YAMAHA YFZ 450 R 2009 AMERICA

YAMAHA YFZ 450 RSE 2025 Special Edition

YAMAHA YFZ 450 RSE 2024 Special Edition

YAMAHA YFZ 450 RSE 2023 Special Edition

YAMAHA YFZ 450 RSE 2022 Special Edition

YAMAHA YFZ 450 RSE 2021 Special Edition

YAMAHA YFZ 450 RSE 2020 Special Edition

YAMAHA YFZ 450 RSE 2019 Special Edition

YAMAHA YFZ 450 RSE 2018 Special Edition AMERICA

YAMAHA YFZ 450 RSE 2017 Special Edition EUROPE

YAMAHA YFZ 450 RSE 2017 Special Edition AMERICA

YAMAHA YFZ 450 RSE 2016 Special Edition EUROPE

YAMAHA YFZ 450 RSE 2016 Special Edition AMERICA

YAMAHA YFZ 450 RSE 2015 Special Edition AMERICA

YAMAHA YFZ 450 RSE 2015 Special Edition EUROPE

YAMAHA YFZ 450 RSE 2014 Special Edition EUROPE

YAMAHA YFZ 450 RSE 2014 Special Edition AMERICA

YAMAHA YFZ 450 RSE 2013 Special Edition AMERICA

YAMAHA YFZ 450 RSE 2013 Special Edition EUROPE

YAMAHA YFZ 450 RSE 2012 Special Edition AMERICA

YAMAHA YFZ 450 RSE 2012 Special Edition EUROPE

YAMAHA YFZ 450 RSE 2011 Special Edition AMERICA

YAMAHA YFZ 450 RSE 2010 Special Edition AMERICA

YAMAHA YFZ 450 RSE 2009 Special Edition AMERICA

YAMAHA YFZ 450 SE 2007 Special Edition AMERICA

YAMAHA YFZ 450 SE 2005 Special Edition AMERICA

YAMAHA YFZ 450 SP 2008 Special Edition AMERICA

YAMAHA YFZ 450 SP 2006 Special Edition AMERICA

YAMAHA YFZ 450 SP2 2008 Special Edition 2 AMERICA

YAMAHA YFZ 450 SPE2 2007 Special Edition 2 AMERICA

YAMAHA YFZ 450 X 2011 AMERICA

YAMAHA YFZ 450 X 2010 AMERICA

YAMAHA YFZ 450 XBB 2010 Bill Ballance Edition AMERICA

YAMAHA YFZ 450 XSE 2011 Special Edition AMERICA

YAMAHA YZ 450 F 2009 AMERICA

YAMAHA YZ 450 F 2009 EUROPE

YAMAHA YZ 450 F 2008 EUROPE

YAMAHA YZ 450 F 2008 AMERICA

YAMAHA YZ 450 F 2007 EUROPE

YAMAHA YZ 450 F 2007 AMERICA