TRX400EX TRX 400EX 400X 88mm Big Bore Cylinder Kit 426 Top End Rebuild Complete

Compatibility This part is compatible with 23 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 2004 Honda XR400R -- 2003 Honda XR400R -- 2002 Honda XR400R -- 2001 Honda XR400R -- 2000 Honda XR400R -- 1999 Honda XR400R --   FITS ALL HONDA TRX400EX, 400X, AND XR400R MODELS AND YEARS NEW aftermarket 88mm cylinder Wiseco or JE forged piston** Hi temp piston rings Chrome wristpin Circlips Maxlock version 2.0 head stud kit 4135 heat treated alloy steel Improved rolled threads machining process Better black oxide rust proof coating 12 point flange nuts and washers Top end gasket kit MLS big bore head gasket Heavy duty timing chain conversion Stickers Piston uses pump or race gas.  Everything is new in the original packaging.  We are an authorized distributor and the original manufacturer’s warranty applies*.  PRICES AND LISTINGS ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE. *Warranty: We stand behind all parts we sell 100%.  If after installation there is an issue contact us for a warranty return.  This product is NOT DIY.  Over 99% of people in the world are not qualified to build an engine.  It requires special tools and has to be done 100% correct.  Many parts must be measured down to .01”.  We ALWAYS STRONGLY recommend parts be installed by a qualified, experienced mechanic.  Warranty does not cover failure that is a result of improper installation, tuning, break in, or misuse.  For any warranty to be considered the part(s) in question must first be sent back to us for inspection.  We do not warranty parts based on phone calls, photos, emails, what you read online, or another mechanic's assessment alone.  It is the responsibility of the person assembling and tuning the parts to make sure they work correctly.  STUD WARRANTY: If for any reason a stud fails during use, not installation, we will send an entire new stud kit.  No other parts or any labor are included, and it can not be converted to a refund or discount on any order.  Studs must be returned to us for inspection first.  ALPHA CUB WARRANTY: If your Alpha Cub cylinder fails for any reason not related to installation, tuning, break in, or misuse we will fix the cylinder free of charge.  If it can not be fixed we will supply you with a new one.  It must be sent to us for inspection, and Millennium Technologies will determine if the cylinder is repairable.  WE DO NOT WARRANTY ANYTHING BASED ON WHAT ANOTHER MECHANIC SAYS IS THE PROBLEM.