TRX 400EX 400EX 87mm Big Bore WISECO Piston Rings Set Cometic Top End Gasket Kit RZ350 Honda® TRX™ 250X 1987-1992 (Pkg

Honda® TRX™ 250X 1987-1992 (Pkg

it's a triple port design

"kibblewhite-yz250f-valve-stem-seals-01-13"

Pro Design or Noss billet cool head

Kibblewhite Racing Titanium Spring Kit (60-60500)

TRX 400EX 400EX 87mm Big Bore WISECO Piston Rings Set Cometic Top End Gasket Kit RZ350 Honda® TRX™ 250X 1987-1992 (PkgC7825, XC8500, 3347XC,4606M08500, 4628M08500, 12251 KCY 671, H0401027S, 12191 KCY 671, 91302 356 000, 18291 MN5 650, 14523 KBB 901, 91301 200 000, 91301 679 003, 18291 MN5 650, 91303 397 000 C7826, XC8700, 3425XC, 4606M08700, 4628M08700 Honda 400EX 400X XR400 87mm Wiseco Piston Replacement Rings Kit & Cometic Top End Gasket Kit Part# 3425XC C7826 These rings are for Wiseco Piston Part #'s 4606M08700 & 4628M08700 These are replacement rings for Wiseco