33151/T22 American Truck 6-pin, 9-pin, and OBDI Cable
This is the standard cable used in commercial trucks. It has the 6-pin, 9-pin, and OBDI (pre-OBDII) cable. This cable is 2016 compliant, so commercial trucks with the "green" dash connector will work with this cable. It is included with TEXA truck kits.
You must also have cable 3902930 to use this.
Part number is the same as 3906978.