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YFZ450 YFZ 450 Big Bore 98 mil Cylinder Top End Rebuild 478 Complete Parts Kit

$549.99

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
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
Special Edition 2011 Yamaha YFZ450XSE
FITS ALL YAMAHA YFZ450 MODELS AND YEARS CARB MODEL ONLY!
  • 98mm REDESIGNED big bore cylinder
  • CP JE or Wiseco forged piston**
  • Hi temp piston rings
  • Wristpin
  • Circlips
  • Head stud kit
  • Top end gasket kit
  • Timing chain
  • Stickers
This is a bolt on kit with no machining required.  Piston uses pump or race gas.  Everything is new in the original packaging and the original manufacturer's warranty applies*

**COVID IS STILL CAUSING BACK ORDERS DAILY.  WE STOCK THE EXACT SAME PARTS FROM DIFFERENT MANUFACTURERS SO THAT WHEN, NOT IF, BACK ORDERS HAPPEN WE HAVE AN ALTERNATE PART THAT IS THE SAME QUALITY TO SEND YOU.  IF YOU ONLY WANT A CERTAIN BRAND PISTON OR CRANK JUST ASK!

We ship orders 7 days a week and our goal is always to get your order to you as fast as possible.  The only time there is every any delay of any kind is because we are waiting on something from the manufacturer.  Please do not take our word for it.  Contact any company that makes a part we tell you is back ordered and confirm for yourself.  If you need contact info feel free to ask us.

RETURNS: We accept free returns for most products for 30 days from the date the order is received by the customer.  If you would like to return something we ask that you please contact us directly for an RMA.  After that 30 day period we do not accept any returns for any reason.  To receive a full refund for a return every part on the order, big and small, must be returned to us 100% complete, unopened, and brand new in the original packaging.  To receive a full refund we must be able to sell every part you return as brand new.  If any part is sent back incomplete or not brand new the cost of that part will be deducted from your refund.  Also we do not accept returns for parts that have been used regardless of how recent the order was.  For more questions about this statement see the eBay return policy.

*The parts we sell ARE NOT DIY.  We always strongly recommend that this be installed by a qualified mechanic with experience working on these types of engines.  Warranty does not include any failure that is a result of improper installation, improper tuning, improper break in, or misuse.  Piston comes with specific instructions for setting the ring gap.  If you do not follow these exactly your motor will fail.  For any warranty to be considered the part(s) in question must first be sent to us and possibly the manufacturer for inspection.  We cannot warranty parts based on photos or phone calls alone.   We stand behind every product we sell but with parts like we sell the person installing them takes a very large percentage of the responsibility for making sure they run right.  We give detailed instructions with all of our orders and failure to follow each one of those steps will void any warranty.  Also, PLEASE PLEASE make sure you set the ring gap on your piston.  If you do not do this your motor will fail.