TRX 400EX 400X 85mm Stock Bore Top End Rebuild Kit

TRX 400EX 400X 85mm Stock Bore Top End Rebuild Kit

The BEST TOP END REBUILD for your Honda TRX 400EX is this one.  This 400EX stock bore top end kit is all brand new.  It is an excellent 400EX top end upgrade, and it includes:
  • 85mm NEW cylinder
  • 10:1 Wiseco piston kit
  • Cometic top end gasket set
This kit will fit all years and models.  It is a bolt on kit with no machining required, and it works with your stock or modified head and crank.  The piston will work on pump or race gas.  The original manufacturer's warranty applies. Email sales@bpracingatv.com or call us at 909-782-8012 with any questions.  Se habla español.

Write a review

Please login or register to review

TRX 400EX 400X 85mm Stock Bore Top End Rebuild Kit

NEED SOMEONE TO ASSEMBLE OR INSTALL YOUR ENGINE?  WE CAN DO THAT FOR YOU!  CALL 909-782-8012 OR EMAIL SALES@BPRACINGATV.COM WITH QUESTIONS!

Free Shipping

Free Shipping on all US orders

  • Product Code: 587
  • Availability: In Stock
  • $279.99

Tags: 400ex 85 mil, 400ex 85 mil top end, 400ex 85mm, 400ex 85mm top end, 400ex oem cylinder, 400ex standard bore, 400ex stock bore cylinder, 400ex stock bore kit, 400ex top end upgrade, 400x stock bore, honda 400ex 85 mil, honda 400ex 85mm, oem 400ex cylinder, stock bore 400ex cylinder, xr400 stock bore trx, rebuild, 400ex/x