OK request send 3D75-1A S/N 01001-UP CYLINDER HEAD Section CYLINDER HEAD 3D75-1A S/N 01001-UP Komatsu: CYLINDER HEAD 030010 ROCKER ARM 030020 CYLINDER HEAD COVER 030030 AIR INTAKE MANIFOLD 030040 EXHAUST MANIFOLD 030050 AIR CLEANER 030060 MUFFLER 030070