The EMD GP9 is a diesel-electric locomotive built by Electro-Motive Division (EMD) from 1954 to 1963. It features a 1,750 horsepower engine and is known for its versatility in freight and passenger service. The GP9 is part of the GP series, which stands for "General Purpose," and it was designed to operate on various railroads across North America. With a distinctive sloped nose and a robust design, the GP9 became popular among many railroads, including Union Pacific and Southern Pacific. Over 4,000 units were produced, making it one of the most widely used locomotives in its class. Its reliability and ease of maintenance contributed to its long-lasting presence in the rail industry.