3106637 Excavator Electrical Parts Wire Harness for ZX650-3 ZX670-3 

The original electrical component harness of Hitachi excavator, with a common part number of 3106637, is the core connection assembly of the entire electrical system. This wiring harness is mainly compatible with multiple excavators of Hitachi ZX series and EX series, including ZX60、ZX70、ZX110、ZX120、ZX130-5A、ZX160LC-3、ZX180LC-3、ZX200-3、ZX210LC-3、ZX225US-3、ZX240-3、ZX250LC-3、ZX270、ZX300-6A、ZX330、ZX360LC、ZX450、ZX470、ZX870 Waiting for ZX series models, as well as EX series models such as EX60-3, EX100, EX200, EX220-2, EX300, EX400, EX550, EX850, EX1100-1200, etc.
 

The wiring harness 3106637 is an electrical assembly that integrates multiple wires, connectors (plugs), protective sleeves, fixed buckles, and identification. Its core function is to provide stable power supply and accurate signal transmission channels for the excavator's engine electronic control system, hydraulic pilot control system, monitoring instruments, lighting, and various sensors (such as pressure, temperature, and speed sensors). The wiring harness is wrapped in insulation materials that are resistant to high temperatures, oil, and wear. The cross-sectional area of the wires is scientifically calculated to meet the current carrying requirements of different circuits.
 

To ensure the long-term reliable operation of the wiring harness, standardized daily inspections and maintenance are required. Regularly visually inspect the outer skin of the wiring harness for wear, breakage, aging, cracking, or oil corrosion, especially in sections near metal edges or moving parts. If necessary, install protective sleeves. Check if all connectors are properly plugged in, if the locking mechanism is intact, and clean the pins/sockets to prevent poor contact or signal interruption caused by oxidation, oil stains, or looseness. It is strictly prohibited to splice or modify the wiring harness without authorization. If repairs are required, specialized tools must be used and waterproof insulation treatment must be done. When disassembling or installing, follow the direction of the wiring harness to avoid pulling or damaging the internal wires.