Komatsu excavator parts are mainly composed of two parts: mechanical parts and electronic parts.
 1. Mechanical accessories are purely mechanical parts to provide power support, mainly hydraulic pumps, grabs, booms, crawlers, engines, etc.
 2. Electronic accessories are the drive control part of the excavator, used to drive the mechanical parts to perform reasonable work, mainly including computer version, hydraulic flow controller, angle sensor, diesel meter, fuse, ignition switch, oil suction pump, etc.
 The mechanical parts and the drive control part are complementary to each other. The electronic control part is used to drive and coordinate the effective work of each mechanical part. The condition of the mechanical part is fed back to the electronic control part through the electronic part, and then the work of the excavator is more effectively coordinated. Achieve its highest work efficiency.
 Parts included in Komatsu excavator accessories:
 ①Standard large and small arms, extended booms of excavators, and extended large and small arms (including two-section extension boom and three-section extension boom, the latter is the demolition boom);
 ②Standard bucket, rock bucket, reinforced bucket, ditch bucket, grid bucket, screen bucket, clean bucket, tilt bucket, thumb bucket, trapezoidal bucket;
 ③ Bucket hook, rotary hydraulic grab, hydraulic grab, gripper, wood grab, mechanical grab, quick change joint, ripper;
 ④Quick connectors for excavators, excavator cylinders, breakers, hydraulic shears, hydraulic tampers, vibrating hammers, bucket teeth, gear seats, crawlers, sprocket wheels, support wheels;
 ⑤ Engine, hydraulic pump, distribution valve, center slewing, slewing ring, walking drive, cab, control valve, overflow valve, main control multi-way valve, etc.;
 ⑥Electrical components, including: starting motor computer board, automatic refueling motor, operating lever assembly, display screen, throttle cable, solenoid valve, horn, horn button, relay, instrument panel, fuse, monitor, control panel, air conditioning compressor Engine, whole vehicle wiring harness, oil suction pump, governor, connector, timer, plug, preheat resistance, fuse, work light, fuse diesel meter, horn assembly, controller, switch, magnetic switch, hydraulic pump pressure Switch, oil pressure switch, flameout switch, ignition switch, sensor, water temperature sensor, oil sensor, diesel sensor, automatic throttle motor sensor, sensor, single foot sensor, angle sensor, speed sensor, pressure sensor;
 ⑦Chassis parts: including guide wheels, sprocket wheels, supporting wheels, driving teeth, chains, chain links, chain pins, bucket shafts, four wheels and one belt, chain rail assembly, guide wheel brackets, slewing bearings, crawlers, rubber crawlers , Track assembly, track shoe, tensioning device, tensioning cylinder seat, tensioning cylinder, universal cross shaft, chain plate screw, big spring, chain plate, chain link, chain guard, bottom guard plate;
 ⑧Hydraulic parts: main oil seal, repair kit, O-ring, water pump repair kit, breaker repair kit, distribution valve repair kit, hydraulic pump repair kit, rotary pump repair kit, cylinder repair kit, walking motor repair kit, hydraulic cylinder, Piston, middle arm cylinder, bucket cylinder, cylinder tube, tension cylinder, piston rod, big nut, big arm cylinder.