TRX 400EX 400X Big Bore 89mm 10:1 Piston Kit Top End Gasket Cometic Head Gasket
FITS ALL HONDA 400EX 400X XR400R YEARS AND MODELS!!
- Standard Aftermarket 89mm 10:1 piston
- Piston rings
- Top end gasket kit
- COMETIC 89mm MLS Head Gasket H0402027S
- NGK Spark Plug DPR8Z
- Fits all 89mm 400EX cylinders
- Runs on pump or race gas
This is a standard kit with all aftermarket parts. It is an inexpensive way to replace the piston on your 400EX big bore. If you are looking for a higher quality kit that comes with different parts see our other listings.