The EMD GP40 is a diesel-electric locomotive built by Electro-Motive Division (EMD) from 1966 to 1971. It features a 16-cylinder engine that produces 3,000 horsepower, making it suitable for both freight and passenger services. The GP40 is known for its reliability and versatility, often used by various railroads across North America. With a length of 40 feet, the GP40 is part of the GP (General Purpose) series, which includes several models designed for different operational needs. Over 1,200 units were produced, and many remain in service today, showcasing its enduring design and performance capabilities.