No Image Available
Caterpillar CAT ET3 Communication Adapter III 317-7485 Diagnostic Tool for Trucks and Excavators
VIEW PRICELog in to view your customer price
| Product Name | Communication Diagnostic Adapter Tool |
| Part Number | 317-7485, 538-5051, 478-0235 |
| Product Type | Communication Adapter III |
| Compatible Software | CAT Electronic Technician (ET) software 2019C/2021B/2022A/2023A/2024C/2025A/2026A |
| Cable Configuration | 6 Pins + 9 Pins + 14 Pins |
| Data Link | J1939/J1708 |
| Communication Method | USB / WiFi (optional) |
| Firmware Version | Adapter III |
| Applicable Equipment | Trucks, excavators, air compressors, ships, drilling machines, heavy equipment |
| Packaging Content | 1 communication adapter III, 1 USB cable, 1 9-pin cable, 1 6-pin cable, 1 14-pin cable, 1 WiFi adapter (optional), 1 plastic carry case |
Manufacturer No.
317-7485538-5051478-0235
OEM Part No.
317-7485478-0235538-5051
Interchange No.
317748547802355385051
Fitment Vehicles
Caterpillar truckCaterpillar excavatorCaterpillar air compressorCaterpillar shipCaterpillar drill
Diagnostic and Workshop Supplies - Industrial Encyclopedia
The Caterpillar ET3 Communication Adapter (Part Number 317-7485) is the CAT Communication Adapter III Generation product, designed to replace Comm Adapter II. This diagnostic tool is suitable for CAT trucks, excavators, compressors, ships, drills, and other heavy equipment, supporting CAT Electronic Technician (ET) software for ECM diagnostics, programming, parameter configuration, and troubleshooting. Equipped with a 6+9+14 pin harness, it is compatible with J1939/J1708 data links. The 2019C software version is provided, supporting firmware upgrades.