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03-09 YZ450F YZF450 YZ450 +1 Kibblewhite Valves Springs Head Gaskets Rebuild Kit


Compatible Vehicles
Submodel Year Make Model
-- 2013 Yamaha WR450F
-- 2012 Yamaha WR450F
Team Yamaha 2012 Yamaha WR450F
-- 2011 Yamaha WR450F
Team Yamaha 2011 Yamaha WR450F
-- 2009 Yamaha WR450F
-- 2008 Yamaha WR450F
-- 2007 Yamaha WR450F
-- 2006 Yamaha WR450F
-- 2005 Yamaha WR450F
-- 2004 Yamaha WR450F
-- 2003 Yamaha WR450F
-- 2009 Yamaha YZ450F
-- 2008 Yamaha YZ450F
-- 2007 Yamaha YZ450F
-- 2006 Yamaha YZ450F
50th Anniversary 2006 Yamaha YZ450F
-- 2005 Yamaha YZ450F
-- 2004 Yamaha YZ450F
-- 2003 Yamaha YZ450F
FITS '03-09 YZ450F and '03-13 WR450F

  • Kibblewhite lightweight valve springs
  • titanium retainers
  • Heat treated collars
  • Black Diamond +1mm stainless steel intake and exhaust valves
  • Bronze valve guides
  • After market valve buckets/caps
  • Valve keepers
  • Valve stem seals
  • Top end gasket kit

You need to modify your head to run +1mm valves (we can do this if you need).  Everything is new in the original packaging and the original manufacturer's warranty applies*

Please check your order thoroughly when you receive it and contact us if you have any issues at all.  If you are not 100% happy with what you receive you are welcome to return it for a full refund, not questions asked!  Thanks!!

*We recommend that this be installed by a qualified mechanic with experience doing this type of work.  Warranty does not cover any failure that is a result of improper installation, improper break in, improper tuning, or misuse.  For any warranty to be considered the part(s) in questions must first be sent to us for inspection.  We can not warranty anything based on phone calls or photos alone.