OK request send 3D84N-2AA S/N 3845-UP CYLINDER HEAD Section CYLINDER HEAD 3D84N-2AA S/N 3845-UP Komatsu: CYLINDER HEAD 030010 ROCKER ARM 030020 CYLINDER HEAD COVER 030030 AIR INTAKE MANIFOLD 030040 AIR CLEANER 030050 EXHAUST MANIFOLD AND MUFFLER 030060