Doosan 300426-00089 Monitor Gauge Panel Assembly

The 300426-00089 monitor gauge panel serves as the primary operator interface for Doosan DX-3 and DX-5 series hydraulic excavators. This unit integrates a 7-inch TFT LCD display with backlit membrane keys for machine monitoring, diagnostics, and hydraulic flow configuration. Engineered to OEM specifications, the assembly communicates via CAN bus (SAE J1939) with the machine ECU and hydraulic controllers to display real-time engine parameters, hydraulic pressure, fuel level, coolant temperature, and fault codes. The housing is rated for heavy-duty construction environments with vibration and shock resistance. Direct replacement for Doosan part numbers 300426-00089, 300426-00089A, and 300426-00089B. Cross-references aftermarket replacements including 300426-00164A, 300426-00174, and 300426-00196A. Requires no programming for plug-and-play installation on verified compatible models.