TEXA American Truck Diagnostic Cable (T22)
This cable is used to diagnose most North American trucks through 6 & 9 Pin Deutsch, 12 Pin Terminal OBDI (pre-OBDII).
The T22 cable connects via the OBDII cable supplied the Navigator TXTs diagnostic interface.
This cable’s part # is 3906978 but it is more commonly called the T22 cable.