TRX400EX TRX 400EX Big Bore 89m 440 Wiseco 12.5:1 Top End Rebuild Kit Head Stud

Compatibility This part is compatible with 14 vehicle(s) Notes Year Make Model Submodel 2008 Honda Sportrax 400 TRX400EX 2x4 2007 Honda Sportrax 400 TRX400EX 2x4 2006 Honda Sportrax 400 TRX400EX 2x4 2005 Honda Sportrax 400 TRX400EX 2x4 2004 Honda Sportrax 400 TRX400EX 2x4 2003 Honda Sportrax 400 TRX400EX 2x4 2002 Honda Sportrax 400 TRX400EX 2x4 2001 Honda Sportrax 400 TRX400EX 2x4 2000 Honda Sportrax 400 TRX400EX 2x4 1999 Honda Sportrax 400 TRX400EX 2x4 2014 Honda TRX400X 2x4 2013 Honda TRX400X 2x4 2012 Honda TRX400X 2x4 2009 Honda TRX400X 2x4   FITS ALL HONDA TRX400EX, 400X, AND XR400R MODELS AND YEARS BOLT ON RELIABLE BIG BORE POWER! Kit includes: TECH SUPPORT BEFORE AND AFTER PURCHASE NEW 89mm cylinder 12.5:1 Wiseco forged piston Wiseco hi temp rings, DLC coated pin, clips ARP/KMS heavy duty head stud kit Cometic top end gasket kit - head base exhaust chain tensioner cylinder Timing chain Install/break in tip sheet Stickers This is a bolt on kit that requires no machining of any kind.  Runs on race gas.  All parts are new in the original packaging, and the original manufacturers' warranties apply*. *We 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.