290-9479 30R-0057 Hydraulic Controller Computer Board for Caterpillar 390D 374D Excavator Electronic Control Unit ECU Replacement Part
290-9479 30R-0057 Hydraulic Controller Computer Board for Excavator 390D 374D Product Overview The 290-9479 / 30R-0057 Hydraulic Controller Computer Board is a high-performance electronic control module designed for heavy-duty construction machinery. It provides precise hydraulic system management ...
Caterpillar excavator hydraulic controller
,390D excavator ECU replacement
,374D electronic control unit
The 290-9479 / 30R-0057 Hydraulic Controller Computer Board is a high-performance electronic control module designed for heavy-duty construction machinery. It provides precise hydraulic system management and reliable communication between machine control systems, helping excavators maintain stable operation, accurate response, and efficient performance.
This controller is engineered as a replacement solution for Caterpillar 390D and 374D excavators, offering dependable compatibility and long service life in demanding working environments.
Advanced electronic control technology helps regulate hydraulic system operation, improving machine response and working accuracy.
Built with durable electronic components designed to withstand vibration, temperature changes, dust, and harsh construction environments.
Designed to replace damaged or malfunctioning hydraulic controller units with matching connectors and installation positions.
High-quality housing design provides protection for internal circuits and ensures long-term operation under heavy-duty conditions.
| Item | Details |
|---|---|
| Product Name | Hydraulic Controller Computer Board |
| Part Number | 290-9479 / 2909479 |
| Replacement Number | 30R-0057 |
| Product Type | Electronic Control Module / Hydraulic Controller |
| Application | Excavator Construction Machinery |
| Compatible Models | Caterpillar 390D, 374D Excavator |
| Condition | New Replacement Part |
| Installation | Direct Replacement |
| Function | Hydraulic System Control & Machine Communication |
- Caterpillar 390D Excavator
- Caterpillar 374D Excavator
- Heavy Construction Machinery Applications
A faulty hydraulic controller may cause:
- Hydraulic system response delay
- Machine operation instability
- Control communication errors
- Reduced working efficiency
- Excavator performance issues
Replacing the controller can help restore normal machine control functions.
- Professional construction machinery electronic parts supplier
- Strict quality inspection before shipment
- Stable replacement performance
- Support for excavator ECU / ECM / controller solutions
- Worldwide shipping support
1 * 290-9479 / 30R-0057 Hydraulic Controller Computer Board
- 290-9479 Hydraulic Controller
- 30R-0057 ECM Controller
- 2909479 Computer Board
- Excavator Hydraulic ECU
- 390D Excavator Controller
- 374D Excavator Electronic Control Module
- Construction Machinery Parts
- Excavator Control Unit Replacement
