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99-04 TRX400X TRX 400EX 400X Rebuild Kit Big Bore 87 mil Complete Top Bottom End

$659.99

Compatible Vehicles
Submodel Year Make Model
TRX400EX 2x4 2008 Honda Sportrax 400
TRX400EX 2x4 2007 Honda Sportrax 400
TRX400EX 2x4 2006 Honda Sportrax 400
TRX400EX 2x4 2005 Honda Sportrax 400
2x4 2014 Honda TRX400X
2x4 2013 Honda TRX400X
2x4 2012 Honda TRX400X
2x4 2009 Honda TRX400X

FITS ALL '99-04 HONDA TRX400EX


BOLT ON RELIABLE BIG BORE POWER!


  • NEW 87mm cylinder
  • CP JE or Wiseco forged piston
  • Hi temp piston rings
  • DLC chrome wristpin
  • Circlips
  • Head stud kit with ARP nuts
  • Hotrods HD Crank with rod
  • Hotrods main bearings
  • Complete gasket kit
  • Seal kit
  • Cam chain
  • Spark plug
  • Installation instructions*
  • Stickers
This is a bolt on kit that requires no machining of any kind.  Runs on pump or race gas.  All parts are new in the original packaging, and the original manufacturers' warranties apply*.

CONTACT US FOR ALL YOUR HONDA 400EX NEEDS!

Please check your order thoroughly when receiving it.  If for any reason at all you are not 100% happy please contact us right away so we can help resolve the issue.  If for any reason at all you are not happy with your order PRIOR TO INSTALLING PARTS you are welcome to return it for a FULL REFUND, NO QUESTIONS ASKED!

*We ALWAYS STRONGLY recommend that this kit be installed by a qualified mechanic with experience working on these types of motors.  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 can not warranty parts based on photos or phone calls alone.