For Deutsch 9Pin J1939 Truck Y Cable to OBD2 16Pin Female Adapter J1708 6Pin Cable for cummins/cat Diagnostic Tool ConnectorOBD2 Interface heavy duty truck diagnose Y cableOBD2 16pin female to CANBUS J1708(6pin) and J1939(9pin) communication cable.This adapter allows you to connect your OBD2 16pin scanner, device to your heavy duty diesel trucks,bus and trailer...etc.Features:1.Easily switch between older and newer models2.Provides power, ground, CAN/J1939 and J1708/J1587 data found on factory 9 Pin connector3.Approximately 30cm length4.SAE J1939,SAE J1708,KWP2000,PWM,VPW, International:for Mack,for Freightliner,for Kenworth,for Cummins,for WestStar,for Cat,and so on.Package List1 x Heavy Duty Diesel Truck 6Pin(J1708) + 9Pin(J1939) to OBDII 16Pin Female Cable