The EMD SD90MAC is a model of 6,000 hp (4,470 kW) [1] C-C diesel-electric locomotive produced by General Motors Electro-Motive Division (EMD). It is, with the SD80MAC, one of the largest single-engined locomotives produced by EMD and among the most powerful diesel-electric locomotives, surpassed only by the dual-engined DDA40X.

After the split of Conrail in 1999, the SD80MACs were split up between the Norfolk Southern Railway and CSX Transportation. Norfolk Southern received 17 units (numbered 7200–7216) while CSX got 13 (800–812, being renumbered to 4590–4602).

Dec 16, 2024 · The SD90MAC was Electro-Motive's most powerful locomotive on a single frame. The model was developed after the company's successful SD70 line and cataloged by the builder at the same time as the less powerful SD80MAC (rated at 5,000 horsepower).

Mar 12, 2025 · As far as CSX and the SD70ACe's, the 20 units that they will be taking delivery of here in the near future are demo units for EMD. They are built to CSX specifications and painted for them but will remain owned by EMD and leased …

Dec 22, 2010 · The Electromotive Division SD9043MAC, also known as the "SD90MAC", is a 6 axle, 4,300 HP, AC traction diesel-electric locomotive built by EMD from 1995 to 2005. The SD9043MAC uses a 16 cylinder 710G3B engine rated at 4,300 HP, the same engine used in …

Jan 16, 2025 · EMDs SD90MAC Convertibles were a product of the mid-1990s, when EMD and GE were in a horsepower race to produce the first 6,000 hp AC locomotives. EMD would offer the SD90MAC model which would feature a four-stroke 265H engine, with Union Pacific being the first customer to commit to the model long before the first locomotive was even built.

The EMD SD90MAC is a model of 6,000 hp (4,470 kW) C-C diesel-electric locomotive produced by General Motors Electro-Motive Division (EMD). It is, with the SD80MAC, one of the largest single-engine locomotives produced by EMD, surpassed only by the dual-engine DDA40X.

The EMD (Electro Motive Division) SD90MAC is a type of six-axle, AC-traction, 16-cylinder, 6,000hp to 4,300hp diesel locomotive produced from 1995 to 2000. It was one of the very first standard, high-powered, AC-traction diesel locomotives produced …

UP 8502 heads East with its train on the CSX (B&O) St. Louis line at Exermont Illinois. With UP SD90AC 8502 southbound out of IHB's Michigan Ave. Yard on the Kankakee Line at Calumet Junction (a "farewell" shot of sorts as this was my final …

6 days ago · Although the railroads called them SD90MAC and SD9043MAC, I don't think technically EMD ever made a "SD9043MAC". The 710-equipped 4300hp SD90 was called SD90MAC, and the 265-equipped 6000hp SD90 was called the SD90MAC-H. UP started naming the convertibles SD9043MAC to make it less confusing.