Buy HITACHI EX100 120-1 200-5 TRAVEL DEVICE FINAL DRIVE PIN SPRING PLANETARY 1 (OEM HI 4173093) | Tonkee®

Buy HITACHI EX100 120-1 200-5 TRAVEL DEVICE FINAL DRIVE PIN SPRING PLANETARY 1 (OEM HI 4173093) | Tonkee®

HITACHI EX100 120-1 200-5 TRAVEL DEVICE FINAL DRIVE PIN SPRING PLANETARY 1 (OEM HI 4173093) | Tonkee®
The significance of the OEM HI 4173093 pin spring planetary 1 in the overall performance of the Hitachi EX100-1, EX120-1, and EX200-5 excavators cannot be overstated. Any malfunction or failure of this component can lead to severe operational issues, including reduced traction, decreased digging power, and increased wear on other vital components. Therefore, regular inspection, maintenance, and, if necessary, replacement of the pin spring are essential to ensure the continued efficiency and productivity of the equipment.
HITACHI EX100 120-1 200-5 TRAVEL, DEVICE FINAL DRIVE PIN, SPRING PLANETARY 1 (OEM HI 4173093) | Tonkee®

The OEM HI 4173093 is a specialized pin spring component within the planetary gear system of the final drive assembly.


In construction and excavation equipment like the Hitachi EX100-1, EX120-1, and EX200-5, the final drive is responsible for transmitting power from the hydraulic motor to the excavator's tracks, allowing the machine to move efficiently and effectively on various terrains.

One of the primary functions of the pin spring planetary 1 is to maintain the proper alignment and engagement of the gears within the planetary gear set. The planetary gear system is essential in distributing power evenly and reducing the rotational speed of the hydraulic motor, thus providing the necessary torque required for excavating tasks. The pin spring plays a pivotal role in ensuring the gears remain securely in place while allowing for the necessary movement and flexibility during operation.

This component is designed with precision and durability in mind. It is typically manufactured from high-quality materials, such as hardened steel or alloy steel, to withstand the extreme forces and stresses encountered in heavy-duty construction applications. The material choice ensures that the pin spring maintains its integrity even under high load conditions, prolonging its lifespan and contributing to the overall reliability of the final drive.

The dimensions and specifications of the OEM HI 4173093 pin spring are engineered to exacting standards to ensure compatibility with the specific models of Hitachi excavators mentioned. These specifications include precise measurements, such as diameter, length, and spring rate, which must match the design criteria to ensure optimal performance and reliability.

Installation of the pin spring planetary 1 is a critical aspect of maintaining the excavator's functionality.


Proper installation procedures, as outlined by the manufacturer or equipment service manual, must be followed to guarantee the correct positioning and alignment of the pin spring within the planetary gear set. This step is crucial in preventing premature wear and tear and ensuring the longevity of the final drive system.

The significance of the OEM HI 4173093 pin spring planetary 1 in the overall performance of the Hitachi EX100-1, EX120-1, and EX200-5 excavators cannot be overstated. Any malfunction or failure of this component can lead to severe operational issues, including reduced traction, decreased digging power, and increased wear on other vital components. Therefore, regular inspection, maintenance, and, if necessary, replacement of the pin spring are essential to ensure the continued efficiency and productivity of the equipment.
DEVICE FINAL DRIVE PIN HITACHI EX100 120-1 200-5 TRAVEL SPRING PLANETARY 1 (OEM HI 4173093) | Tonkee®
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