Hi! Well..... ..... Hmm. First off, I am not aware of either of the companies you mentioned, so I am not sure how they relate to all of this exactly. But, M-M did produce a UTSD "U Tractor Standard Diesel), otherwise known as a UDS (U Diesel Standard), produced from 1952 through 1956. There was also a military version of the UTSD, designated UTSD-M (M for Military). They were only produced in 1954 and 1955. Combined, a total of 2404 UTSDs and UTSD-Ms were produced, with ~1150 of them being UTSD-Ms (sorry, I don't have a pen handy to figure the exact numbers). M-M also produced a version of the UTSD-M for Turkey. They were made from 1956 through 1958, and 391 of them were made. That is additional to the 2404 UTSDs and UTSD-Ms mentioned above. How all of this relates to Harnishfagger (sp) Industries, I do not know. Perhaps (if I am reading your post right), Harnishfagger's engine was an after-market jobby meant to be added to regular UTSs. But I am not sure on that. Hope this helps. Respectfully, Brian Rukes The M-M Registry
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