4719324 Excavator Sensor Internal Line Harness Wirs for ZX200-3

The internal wiring harness of Hitachi original excavator sensors (universal part number: 4719324) is a precision connecting wire designed specifically for various sensors of Hitachi excavators, such as engine speed sensors, pressure sensors, temperature sensors, etc. This original spare part is mainly suitable for Hitachi's various small to large excavators, including but not limited to ZX55、ZX60、ZX70、EX120、EX150、ZX200、EX200、ZX210、EX210、ZX220、EX220、ZX240、EX240、ZX250H、EX250、EX260、ZX270、ZX300、EX300、ZX330、ZX350、ZX370、ZX450、EX450、ZX470、EX470、EX870、EX1200 Waiting for the model.
 

The internal wiring harness of the sensor is a critical channel for transmitting weak electrical signals between the sensor and the excavator main controller (ECU/MC). Its core function is to accurately and stably transmit analog or digital signals (such as voltage, current, frequency signals) collected by sensors, which are directly related to core functions such as engine control, hydraulic system regulation, and fault diagnosis. As an original component, it is made of high-quality materials: the conductor is made of multiple strands of high-purity tin plated copper wire, ensuring low loss and anti-interference of signal transmission; The insulation layer is made of special PVC or PUR materials that are oil resistant, high temperature resistant (usually tested at -40 ℃~125 ℃ or even higher), wear-resistant, and have excellent flexibility.
 

To ensure the long-term reliable operation of sensor harness wires, meticulous preventive maintenance must be carried out. It is recommended to visually inspect the appearance of the wires every week or every 50 hours of work, with a focus on the areas near the sensor installation location, the wire harness fixing buckle, the areas passing through metal holes or adjacent to moving parts, and check whether the insulation layer is worn, cut, aged, cracked, or has been soaked in oil for a long time and swollen. It is crucial to keep the connector clean and dry. When disassembling the sensor, be sure to disconnect the power first and hold the connector body for operation. It is strictly forbidden to pull or tug on the wires directly.