Seller notes

426cc Big Bore Kit, Includes Piston kit & Top End Gasket kit FitsHonda TRX 400EX, 1999-2008 Honda XR 400R 1996-2007 Item Description & InformationExpect Gain of 4-6 HP with this Kit! Kit Includes:JE Piston Kit: 13:1 Compression Piston, 88mm Rings Circlips Wrist PinCometic Top End Gasket Set Multilayer Steel Head Gasket Base GasketEngine Case Gasket 127 Viton O-ring Brown (4) This kit requires that your Stock Cylinder be Bored and Honed. We offer that service for $75, or your local machine shop c...

Contact Us regarding this vehicle

Contact Seller on eBay

You will be redirected to eBay

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission.