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The ET4 Communication Adapter 3 (model 538-5051) is a professional-grade diagnostic tool designed for Caterpillar heavy-duty trucks. Featuring a high-speed Ethernet connection that accelerates programming by 10 times, it comes pre-loaded with the latest 2023A software on a laptop compatible with Windows 7-10. Multi-language support and extensive diagnostic and calibration functions make it indispensable for fleet managers and technicians aiming to reduce downtime and maintenance costs.
| Manufacturer | Generic | 
| Brand | Generic | 
| Model | 538-5051 | 
| Item model number | 538-5051 | 
| Manufacturer Part Number | 538-5051 | 
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