OK request send 4D105-3S S/N 66126-UP CYLINDER HEAD Section CYLINDER HEAD 4D105-3S S/N 66126-UP Komatsu: CYLINDER HEAD 030010 ROCKER ARM 030020 CYLINDER HEAD COVER 030030 AIR INTAKE CONNECTION¤ RIBBON HEATER AND AIR CLEANER 030040 EXHAUST MANIFOLD AND MUFFLER 030050