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| I do believe thats a SD45T-2... (Evidence in the three radiator fan doors at the rear of the locomotive) 
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| That's a good observation on it possibly being a SD45T-2, which it seems it originally was before rebuilt for UP as 3000 horsepower SD40T-2 while retaining the original SD45T-2 carbody - per the notes on UtahRails.net. 
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