1,Fitment: Fit for your 2016 and new vehicles, replacement for Paccar, replacement for Peterbilt, replacement for Kenworth, replacement for Western Star, and others with for Cummins engine. 2,Reference Cable Type: Crossover cable is similar to for DrewLinq cable CBL DL C3C1 and for Nexiq 406004 but with improved locking ring connector for secure connection. 3,Function: All pins are wired, this cable will reroute CAN3 to CAN1 or CAN1 to CAN3, so your diagnostic tool can read the J1939 signal found on earlier models. 4,Plug and Play: Green plug that connects to vehicle is locking type so you can be assured of a secure connection. Black 9 pin end accepts either black or green 9 pin mating plug. 5,Premium Material: Made of premium ABS plastic, crossover adapter is lightweight, flexible, high temperature resistant, not easy to crack.