I was curious about the model H Cummins, because back in 1973 my Dad had me, at age 16, driving loads on the highway in his 1961 Emeryville with a 220 Cummins. I followed the lead to the article and the writer who drove out to SD to retrieve the engine. Being curious I went to the official Cummins web site and then on to Wikepedia/Cummins where was mentioned the model H. Wiki claimed the model H was in popular use as a railway "switcher" engine. Follow the model H along and we will see what Cummins decides to do with this engine. ps: as a locomotive engine? I did not expect to read that.