493033 Diagnostic Adapter Cable used to connect your device for Cummins engines with either a J1939 3-pin for Deutsch or a 2-pin adapter. Also works for USB Link 2, USB Link 3. Fit for Nexiq USB-Link 3 Wired, USB-Link 3 Wireless, USB-Link 2 Bluetooth Edition, USB-Link 2 Wi-Fi Edition, INLINE 7.