EX120 EX200-2 EX200-3 Angle Sensor 4444902 | Hitachi Excavator Sensor Replacement

Description

The 4444902 angle sensor is a precision position measurement device designed for Hitachi EX120, EX200-2, and EX200-3 excavators, providing real-time boom and arm angle data to the machine’s electronic control system. This sensor is essential for modern excavator functions including hydraulic proportional control, load monitoring, and machine control systems that rely on accurate implement positioning data. The sensor uses a non-contact Hall-effect measurement technology that eliminates mechanical wear and provides long-term accuracy without calibration drift. It measures angles across a 0 to 180-degree range with 12-bit resolution for smooth, precise signal output. The 4444902 is sealed to IP67 standards to withstand pressure washing, dust, and temporary water immersion in harsh excavation environments. Compatible with EX120, EX200-2, and EX200-3 excavator models from Hitachi’s popular mid-size line. Direct electrical plug-in connection with the original wiring harness. Replacement does not require hydraulic system disassembly. Each sensor is individually calibrated and tested for accuracy and durability before shipping. Supports fleet operators and dealers seeking reliable OEM-quality position sensors at competitive aftermarket pricing.