The TEXA Cummins Industrial Engine Cable (T50) connects directly to the engine via the 3 pin connector found on the intake side of the engine. The T50 cable comes with two sets of center pins that need to be swapped out to match the diagnostic port on the engine, see our article for photos and description of how to change the center pins.
This cable’s part # is 3906709 but it’s commonly called the T50 cable. This cable is available as part of the Off-Highway Cable Case (part # SO49C8)
This cable requires the use of the Truck & Off-Highway Power Supply and Adapter Kit (part # 3905031) to connect to the Navigator TXTs diagnostic adapter to perform a diagnosis.