478-8975 478-8977 Electronic Control Module for Excavator Grader Loader Dozer E320GC E336GC E330GC E345GC
Product Details
| Part Number: | 478-8975 478-8977 | MOQ: | 1 |
|---|---|---|---|
| Engine: | E320GC E336GC E330GC E345GC | ||
| Highlight |
Excavator Electronic Control Module,ECU Controller for Grader Loader,478-8975 ECM for E320GC E336GC |
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Product Description
The 478-8975 478-8977 Electronic Control Module (ECM) is a high-quality rebuilt engine controller designed for E320GC, E336GC, E330GC, and E345GC excavator models. This ECU controller delivers optimal performance and reliability for construction machinery used in repair shops, manufacturing plants, and heavy equipment operations.
Engineered to meet strict quality standards, this electronic control board ensures precise engine management, fault diagnostics, and seamless integration with your excavator's existing systems.
| Product Name | Controller |
|---|---|
| Part Number | 478-8975 478-8977 |
| Brand Name | JIAJUE |
| Compatible Models | E320GC E336GC E330GC E345GC Excavator |
| Condition | NEW |
| Availability | Rich Stock |
| Delivery Time | Usually delivered within 1–3 days after payment |
| Approximate Weight | 2 KG |
| Size (per unit) | 20 cm × 30 cm × 8 cm |
| Delivery Methods | DHL, FedEx, TNT, UPS |
| Shipment | Dispatched within 24–48 hours |
| Payment Methods | TT, Western Union, Credit Card, PayPal |
- Physical Installation: 15–30 minutes. The unit is typically secured by 4 bolts on the cool side of the engine.
- Programming & Testing: 30–60 minutes.
Pro Tip: If the ECM is pre-programmed by us based on your machine's serial number, it is essentially "Plug & Play." If not, you will need a Cat ET (Electronic Technician) tool to flash the software, which takes additional time. We recommend professional installation to ensure correct parameter synchronization.
- The ET diagnostic tool cannot communicate with the ECM, or it displays a "Module Not Responding" error. This is a critical sign of internal hardware failure.
- Active fault codes related to internal memory (EEPROM) or voltage reference issues that persist after checking the wiring harness often indicate ECM failure.
- Sudden engine stalling, severe power loss (Limp Mode), or persistent misfiring (missing injector driver signals) after sensors and harnesses have been ruled out.
- Visible signs of overheating (burning smell), water ingress, corrosion, or broken pins on the connector headers.
Our payment methods include T/T, L/C, PayPal, and more.
Yes, rich stock is available for immediate dispatch.
When the goods ship, we will share the tracking number. For sea or air freight, we can provide the bill of lading.
Pro Tip: HEUI (Hydraulic Electronic Unit Injection) systems are extremely sensitive to contamination. A single speck of dust can cause premature failure.
- Prepare: Ensure the excavator is turned off and safely secured. Disconnect the battery to avoid electrical accidents.
- Inspect: Check the ECU for physical damage or loose connections.
- Connect Diagnostic Tool: Use a diagnostic tool recommended by the excavator's manufacturer. Connect it to the ECU according to the tool's instructions.
- Read Codes: Use the diagnostic tool to read any error codes (DTCs) stored in the ECU. These codes indicate potential problems with the ECU or connected systems.
- Check Live Data: View live data parameters such as sensor readings and system voltages. Ensure they are within normal ranges.
- Functional Tests: If possible, perform tests to activate components or simulate sensor inputs. Verify that the ECU responds correctly without delays or errors.
- Reset (if needed): Reset the ECU if recommended by the manufacturer, especially after repairs or replacements.
- Document: Keep a record of all tests, codes, and results for future reference.
Before replacing the ECM, always check the fuses, main relays, and ground connections. In many cases, a faulty ground wire or low battery voltage mimics an ECM failure.
Product Highlights
478-8975 478-8977 Electronic Control Module for Excavator E320GC E336GC E330GC E345GC The 478-8975 478-8977 Electronic Control Module (ECM) is a high-quality rebuilt engine controller designed for E320GC, E336GC, E330GC, and E345GC excavator models. This ECU controller delivers optimal performance ...
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