... control system, guard, swing circle and related parts, travel and lower piping, under carriage, work equipment, marks and plates, accessory, ... miscellaneous, service and component parts.The types are1. Komatsu Parts-excavator spare parts: ... \PC400-7\PC450-7\PC450-82. Komatsu Parts- Bulldozer spare parts: D31/D41/D50/D51/D60/D85/D155/ ...