Honda TRX 400EX 400X Piston Cylinder Gasket Top End Rebuild Kit 1999-2014 NEW TOP-END REBUILD CYLINDER KIT FITS: HONDA TRX400EX 1999-2008 / XR400R 1996-2004 Standard size replacement cylinder and piston, Direct bolt on kit, ready to install, No modifications required OEM quality replacement parts, Exact items you will receive are pictured Includes: Cylinder 12100-KCY-670 / Piston 13101-KCY-670 / Ring Set 13011-KCY-670 / Wrist-Pin 13111-KCY-670 / Circlip Set 90601-KA5-000 / Head Gasket / Head Cover Gasket / Base Gasket / Cam Tension Gasket / NGK Spark Plug