Original Refurbished New 312B 311B Excavator ECU Controller 119-9966 1199966 Engine Control Module Generator Unit
Original Refurbished New 312B 311B Excavator ECU Controller 119-9966 The 119-9966 / 1199966 Engine Control Unit (ECU) is a high-quality electronic controller designed for Caterpillar CAT 312B and 311B excavators. This ECU module is responsible for monitoring engine operating parameters, processing ...
Refurbished excavator ECU controller
,311B engine control module
,119-9966 generator unit
The 119-9966 / 1199966 Engine Control Unit (ECU) is a high-quality electronic controller designed for Caterpillar CAT 312B and 311B excavators.
This ECU module is responsible for monitoring engine operating parameters, processing sensor signals, and controlling engine-related functions to ensure smooth operation, accurate control, and reliable machine performance.
Available in original refurbished and replacement new conditions, this controller provides a reliable solution for excavator repair, maintenance, and restoration.
The ECU manages important engine data and provides precise electronic control for:
- Engine operation
- Fuel management
- System communication
- Machine performance optimization
Compatible part numbers:
- 119-9966
- 1199966
Application:
- CAT 312B Excavator
- CAT 311B Excavator
The refurbished ECU is professionally inspected and tested to ensure:
✔ Stable operation
✔ Complete function testing
✔ Reliable performance
✔ Long service life
The controller features a rugged housing designed for demanding construction environments, offering protection against:
- Vibration
- Dust
- Heat
- Daily heavy-duty operation
Designed with original connectors and mounting structure for convenient replacement and maintenance.
| Item | Description |
|---|---|
| Product Name | Excavator Engine ECU Controller |
| Part Number | 119-9966 |
| Alternative Number | 1199966 |
| Type | ECU / ECM Engine Control Module |
| Application | Excavator Engine Control System |
| Compatible Models | CAT 312B / 311B |
| Brand | Caterpillar Compatible |
| Voltage | 24V System |
| Condition | Original Refurbished / New Replacement |
| Housing Material | Aluminum Alloy |
Fits for:
✔ Caterpillar CAT 312B Excavator
✔ Caterpillar CAT 311B Excavator
✔ CAT B Series Construction Machinery
A faulty ECU controller may cause:
- Engine starting problems
- Abnormal engine speed
- Reduced machine power
- Communication failure
- ECU warning alarms
- Unstable excavator operation
Replacing the engine controller can help restore normal machine performance.
✔ Professional excavator electronic parts supplier
✔ Original refurbished and replacement options available
✔ Function tested before shipment
✔ Reliable aftermarket solutions
✔ Support global wholesale and repair markets
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CAT 312B 311B Excavator ECU Controller 119-9966 1199966 Engine Control Unit
Buy CAT 312B 311B Excavator ECU Controller 119-9966 1199966 Engine Control Module. Original refurbished and new replacement options with reliable performance.
