The EMD SD75M is a series of diesel-electric locomotives produced by General Motors Electro-Motive Division in 1994. The series was a response to General Electric's Dash 9-44CW. By bumping up the output of the 16-710-G3 engine from 4000 to 4,300 horsepower (3,200 kW), the SD75 was a reality. The unit is recognized from the SD70 by the added bulge below the inertial air-intake on the right side of the unit. The "M" in the model designation is the style of the cab, in this case the North American style cab. The SD75I had a "WhisperCab" in EMD speak. Both models use the HTCR-II radial truck and are mounted on the 72 feet 4 inches (22.05 m) frame. This model only sold 76 units and was not as popular as the SD70. The biggest buyers of this model were the Santa Fe, now Burlington Northern Santa Fe.
Mainly built for a special request from ATSF/BNSF, the SD75M's are slightly more powerful than SD70M's, having horsepower ratings between 4,300 hp (3,200 kW) & 4500 hp. They are almost identical to SD70M's, but can be distinguished by looking for an equipment blower duct on the right side. SD70M's have a blower duct on the left side only (like most EMD's), but SD75M's have a blower duct on both sides of the locomotive.
See Also: BNSF Shareholders Approve Sale To Berkshire Hathaway / The BNSF Honors Three Shortline Railroads For Partnership Excellence / The Cajon Pass Railroad Museum - The Birth Of A Dream
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