Skip to content
NOTICE: DUE TO HIGH ORDER VOLUME, CURRENT HANDLING TIME IS 5-7 BUSINESS DAYS. OUR TEAM IS WORKING HARD TO PROCESS YOUR ORDERS AS QUICKLY AS POSSIBLE. WE TRULY APPRECIATE YOUR PATIENCE AND UNDERSTANDING. 🙏
NOTICE: DUE TO HIGH ORDER VOLUME, CURRENT HANDLING TIME IS 5-7 BUSINESS DAYS. OUR TEAM IS WORKING HARD TO PROCESS YOUR ORDERS AS QUICKLY AS POSSIBLE. WE TRULY APPRECIATE YOUR PATIENCE AND UNDERSTANDING. 🙏

TRX 400EX 400X XR 416 Big Bore Kit 87 mil Cylinder +2 Complete Top End Rebuild

by BPRATV
Sold out
Original price $455.99 - Original price $455.99
Original price
$455.99
$455.99 - $455.99
Current price $455.99
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
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
2x4 2014 Honda TRX400X
2x4 2013 Honda TRX400X
2x4 2012 Honda TRX400X
2x4 2009 Honda TRX400X
FITS ALL HONDA 400EX 400X XR400 MODELS AND YEARS
  • NEW 87mm cylinder
  • 11:1 Wiseco JE or CP forged piston
  • Hi temp piston rings
  • DLC chrome wristpin
  • Circlips
  • Heavy duty head stud kit
  • Cometic top end gasket kit
  • Timing chain
  • 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 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. 

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare