4988820 4988821 4943133 4940518 ECM ECU Controller for QSB3.3 ISB 6.7L CM2150 Excavator Engine Computer Board
4988820 ECM ECU Controller Engine Computer Board for QSB3.3 ISB 6.7L CM2150 Engine The 4988820 / 4988821 / 4943133 / 4940518 ECM ECU Controller is a high-performance engine control module designed for Cummins QSB3.3, ISB 6.7L and CM2150 engine systems. It controls engine operation parameters, ...
ECM ECU Controller for QSB3.3 engine
,Excavator Engine Computer Board
,ISB 6.7L CM2150 ECU Controller
The 4988820 / 4988821 / 4943133 / 4940518 ECM ECU Controller is a high-performance engine control module designed for Cummins QSB3.3, ISB 6.7L and CM2150 engine systems. It controls engine operation parameters, processes sensor signals, and manages fuel injection, engine performance, and electronic communication to ensure stable machine operation.
This ECM controller is an ideal replacement solution for excavators and construction equipment experiencing engine control failures, communication errors, or unstable operation caused by a damaged ECU module.
| Item | Details |
|---|---|
| Product Name | Engine ECM / ECU Controller Computer Board |
| Part Number | 4988820 / 4988821 / 4943133 / 4940518 |
| Engine Model | Cummins QSB3.3 / ISB 6.7L |
| Control System | CM2150 |
| Product Type | Electronic Control Module |
| Application | Excavator & Construction Machinery |
| Function | Engine Management Control |
| Brand | JISION |
| Condition | Replacement Part |
Engine Compatibility:
- Cummins QSB3.3 CM2150
- Cummins QSB6.7 CM2150
- Cummins ISB 6.7L
- Cummins ISB / QSB Series Engines
Compatible replacement part numbers:
- 4988820
- 4988821
- 4943133
- 4940518
Provides accurate electronic control signals to maintain smooth engine operation and reliable machine performance.
The ECM processes engine sensor information and controls important engine parameters for improved efficiency.
Designed for heavy-duty equipment environments with excellent resistance to vibration, heat and dust.
Designed to replace failed or damaged engine controller modules with matching specifications.
Every controller is inspected and tested before delivery to ensure dependable performance.
A faulty ECM controller may cause:
- Engine unable to start
- Engine power loss
- Abnormal fuel injection
- Communication fault codes
- Unstable engine operation
- Excavator performance reduction
Replacing the ECM can help restore normal engine control functions.
Suitable for construction machinery including:
- Excavators
- Loaders
- Industrial equipment
- Diesel-powered machinery using Cummins QSB / ISB engines
✔ Professional excavator electronic parts supplier
✔ Specialized in ECU / ECM / controller computer boards
✔ High-quality replacement solutions
✔ Strict testing before shipment
✔ Worldwide shipping support
✔ Technical support for part matching
1 * 4988820 / 4988821 / 4943133 / 4940518 ECM ECU Controller
4988820 ECM Controller
4988821 ECU Module
4943133 Engine Control Module
4940518 ECM Computer Board
Cummins QSB3.3 ECU
Cummins ISB 6.7 ECM
CM2150 Engine Controller
Excavator ECU Replacement
Cummins Engine Computer Board
