9pin J1939 and 6pin J1708 for Diesel Truck Diagnostics. 2 in 1 Design: Combines OBD to Type 2 green 9pin J1939 and 6pin J1708 for seamless diagnostics. Compatibility: Specifically designed for heavy-duty trucks, converting 9pin J1939 and 6pin J1708 ports to a standard OBD2 port.
