FITS ALL HONDA 400EX 400X XR400R YEARS AND MODELS!!

• Standard Aftermarket 89mm 10:1 piston
• Piston rings
• Wristpin
• Circlips
• Top end gasket kit
• COMETIC 89mm MLS Head GasketH0402027S
• 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.

– The Best Parts. The Best Performance. The Best Price. BRAPPPPPPPPPP!