Seeking Caterpillar Comm3 Adapter

[Ivan23]

I need a new Caterpillar Comm3 adapter urgently! My old adapter broke while diagnosing between a Cat ET and a Perkins engine, leading to error #142 (adapter not plugged in) on both systems. I’ve tried changing the cable, but the issue persists, and the device manager can’t read the adapter.

Does anyone know where I can buy a new or used

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? Any help would be greatly appreciated!

Thanks!