Application This MPS-493033 3 pin diagnostic adapter cable fit for cummins engines with either a J1939 3 pin Deutsch or a 2 pin adapter,also used for USB Link 2, USB Link 3 Strong Compatibility This adapter is designed specifically for Nexiq USB Link 3 (both wired and wireless editions), USB Link 2 Bluetooth, Wi-Fi Edition, and the Cummins Inline 7(PLEASE NOTE: This cable does NOT work with the original USB Link) Function It can effectively connect various diagnostic devices for troubleshooting and diagnosis, improving maintenance efficiency, the adapter cable includes a alligator clips and is easy to install Premium Material .