description EMD SD45 Overview
General Motors Electro-Motive Division 3,600-horsepower diesel-electric locomotive produced from 1965 to 1971, powered by a distinctive 20-cylinder 645 series engine with characteristic flared radiators.
help EMD SD45 FAQ
What engine does the EMD SD45 use?
The EMD SD45 is powered by General Motors Electro-Motive Division's distinctive 20-cylinder 645 series engine. This massive prime mover was an attempt to increase horsepower significantly over the standard 16-cylinder designs.
How much horsepower does the EMD SD45 produce?
It was advertised as producing 3,600 horsepower, making it one of the most powerful single-engine diesel locomotives of its era. It was heavily used by major railroads for heavy-haul freight service.
What years was the EMD SD45 produced?
General Motors produced the SD45 from 1965 to 1971. Despite its power, the 20-cylinder engine proved to be somewhat unreliable and expensive to maintain, leading to its relatively short production run.
What is the most distinguishing visual feature of the EMD SD45?
The SD45 is easily recognized by its characteristic flared radiators at the rear of the long hood. These flared radiators were necessary to cool the massive 20-cylinder engine.
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