Deturbo'd and believed to be from UP, these units had 2000 HP but none of the fancy -2 electronics. This one somehow lacked the ugly air filter housing the others had.
Built for Milwaukee Road, inherited by SOO, this unit somewhere acquired a large fuel tank and ended up on this ill-fated operation.
Nice looking unit, bought new and originally painted an OWTX green but they soon figured out that didn't work.