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YFZ450 YFZ 450 Big Bore Stroker Crank 98m Complete Motor Engine Rebuild Kit 500c

$1,199.99

Compatible Vehicles
Submodel Year Make Model
-- 2013 Yamaha YFZ450
-- 2012 Yamaha YFZ450
-- 2009 Yamaha YFZ450
-- 2008 Yamaha YFZ450
-- 2007 Yamaha YFZ450
-- 2006 Yamaha YFZ450
-- 2005 Yamaha YFZ450
-- 2004 Yamaha YFZ450
Limited Edition 2004 Yamaha YFZ450LE
Team Yamaha 2014 Yamaha YFZ450REL
-- 2017 Yamaha YFZ450RSE
Special Edition 2015 Yamaha YFZ450RSE
Special Edition 2014 Yamaha YFZ450RSE
Special Edition 2013 Yamaha YFZ450RSE
Special Edition 2012 Yamaha YFZ450RSE
Special Edition 2011 Yamaha YFZ450RSE
Special Edition 2010 Yamaha YFZ450RSE
Special Edition 2009 Yamaha YFZ450RSE
Custom Graphics 2013 Yamaha YFZ450RW
Custom Graphics 2012 Yamaha YFZ450RW
Special Edition 2007 Yamaha YFZ450SE
Special Edition 2006 Yamaha YFZ450SE
Special Edition 2005 Yamaha YFZ450SE
Special Edition II 2007 Yamaha YFZ450SE2
Special Edition 2008 Yamaha YFZ450SP
Special Edition II 2008 Yamaha YFZ450SP2
Bill Balance Edition 2007 Yamaha YFZ450V
Bill Balance Edition 2006 Yamaha YFZ450V
Custom Graphics 2013 Yamaha YFZ450W
Custom Graphics 2012 Yamaha YFZ450W

FITS ALL YAMAHA YFZ450 MODELS AND YEARS CARB MODEL ONLY!


  • 98mm BP Racing purpose built big bore cylinder
  • Hotrods stroker crank with rod
  • Wiseco JE or CP forged piston**
  • Hi temp piston rings
  • Wristpin
  • Circlips
  • Head stud kit
  • Clutch kit (fibers, steels, springs)
  • Water pump bearing
  • Transmission bearings
  • Shit cam bearing
  • Crank bearings
  • Counter balancer bearings
  • Complete gasket kit - top and bottom end
  • Complete seal kit
  • Cam chain
  • Stickers

**COVID MAY BE OVER BUT THE BACK ORDERS CAUSED BY IT ARE NOT.  WE STOCK THE EXACT SAME PISTONS, GASKETS, CRANKS FROM DIFFERENT SUPPLIERS SO THAT WHEN, NOT IF, BACK ORDERS HAPPEN WE HAVE AN ALTERNATE PART THAT IS THE SAME QUALITY TO SEND YOU.  IF YOU WANT A SPECIFIC BRAND JUST ASK!  No modification of any kind is required to use this kit.  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.  Thanks!!  We accept returns for any reason within the first 30 days.  To return this kit it must be sent back to us 100% complete, every single part big and small, in brand new condition in the original packaging.  The cost of any part, not matter how small, will be deducted from your refund if it is either not returned or can not be resold as a brand new part.  See eBay's return policy for more details.

*THIS KIT IS NOT DIY.  We ALWAYS STRONGLY 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.