OK request send 4D105-5T S/N 106581-UP CYLINDER HEAD Section CYLINDER HEAD 4D105-5T S/N 106581-UP Komatsu: CYLINDER HEAD 030010 ROCKER ARM 030020 CYLINDER HEAD COVER 030030 AIR INTAKE MANIFOLD AND CONNECTION 030040 AIR CLEANER 030050 EXHAUST MANIFOLD AND MOUNTING 030060 MUFFLER AND MOUNTING 030070