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The ET4 Communication Adapter 3 (model 538-5051) is a cutting-edge heavy-duty truck diagnostic tool designed for Caterpillar engines. Featuring the latest 2023A software pre-installed, it offers ultra-fast Ethernet communication that reduces programming time by 10x. Compatible with Windows 7, 8, and 10, it supports multi-language operation and delivers advanced diagnostics and maintenance functions including fault code reading, calibration, and engine testing—all in a ready-to-use package.
| Manufacturer | Generic |
| Brand | Generic |
| Model | 538-5051 |
| Item model number | 538-5051 |
| Manufacturer Part Number | 538-5051 |
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