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EMD GP9 - Locomotive
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EMD GP9

description EMD GP9 Overview

The EMD GP9 is a renowned American diesel-electric locomotive built by General Motors’ Electro-Motive Division. Notably, it's a versatile mixed-traffic unit capable of handling both freight and passenger service. Its robust design and widespread use made it a staple for railroads across North America. It remains particularly relevant for smaller lines, switching operations, and historical preservation efforts.

insights Why this score

EMD GP9 ranks #33 of 248 in the Locomotive ranking, behind New York Central J-3a Hudson, ahead of Bombardier Zefiro 380 (China).

balance EMD GP9 Pros & Cons

thumb_up Pros
  • check Reliable road-switcher design
  • check Improved GP7 horsepower
  • check Easy field maintenance
  • check Excellent parts availability
thumb_down Cons
  • close Poor modern fuel economy
  • close Basic crew accommodations
  • close High emissions by modern standards

help EMD GP9 FAQ

How many EMD GP9 locomotives were built?

Over 4,000 EMD GP9 locomotives were produced between 1954 and 1963 by General Motors' Electro-Motive Division, including versions for both domestic and export markets. It was one of the most successful road-switcher designs in American railroad history.

What horsepower does the EMD GP9 produce?

The EMD GP9 is powered by a 16-cylinder EMD 567C diesel engine producing 1,750 horsepower. This made it a significant upgrade over the earlier GP7, which produced 1,500 horsepower from the same engine family.

Are any GP9 locomotives still in service?

Yes, numerous GP9 locomotives remain in service on shortline railroads, industrial operations, and heritage railroads across North America. Many were rebuilt or "chop-nosed" by their owners for improved visibility and continued use as switchers.

What does GP stand for in the EMD GP9?

"GP" stands for "General Purpose," reflecting EMD's designation for its line of road-switcher locomotives that could handle both freight and passenger duties. The GP series began with the GP7 and became one of the most recognizable locomotive designs in North American railroading.

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