Adaptor from Cat to Cummins on Freightliner Chassis

I attempted to transfer my VMSpc, I used with a Safari with a Cat engine, to a Newmar with a Cummins engine and found the plug was different. Is there an adaptor I need to fit the plug on the Freightliner chassis with the Cummins engine?

There are two versions of the diagnostic plug.

There is a six-pin version and a nine-pin version - so of course the new coach will be the opposite of the old. A new cable of either flavor is $24.95. Just call us at 888-741-0259 and we'll ship you whichever you need.