An EMD GP28 is a 4-axle diesel locomotive

Locomotive

A locomotive is a railway vehicle that provides the motive power for a train. The word originates from the Latin loco – "from a place", ablative of locus, "place" + Medieval Latin motivus, "causing motion", and is a shortened form of the term locomotive engine, first used in the early 19th...

 built by General Motors Electro-Motive Division between March 1964 and November 1965. Power was provided by an EMD 567D1

EMD 567

The EMD 567 is a line of diesel engines built by General Motors' Electro-Motive Division. This engine, which succeeded Winton's 201-A, was used in EMD's locomotives from 1938 until its replacement in 1966 by the EMD 645. It has a bore of , a stroke of and a displacement of 567 in³ per cylinder...

 16-cylinder

Cylinder (engine)

A cylinder is the central working part of a reciprocating engine or pump, the space in which a piston travels. Multiple cylinders are commonly arranged side by side in a bank, or engine block, which is typically cast from aluminum or cast iron before receiving precision machine work...

 engine which generated 1800 horsepower

Horsepower

Horsepower is the name of several units of measurement of power. The most common definitions equal between 735.5 and 750 watts.Horsepower was originally defined to compare the output of steam engines with the power of draft horses in continuous operation. The unit was widely adopted to measure the...

 (1.3 MW). This locomotive was basically a non-turbocharged version of the EMD GP35

EMD GP35

An EMD GP35 is a 4-axle diesel locomotive built by General Motors Electro-Motive Division between July 1963 and December 1965 and by General Motors Diesel between May 1964 and January 1966. Power was provided by an EMD 567D3A 16-cylinder engine which generated .Many railroads traded in Alco and...

.

16 examples of this locomotive model were built for American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 railroads, 10 were built for Mexican

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

 railroads, and five were built for use in Peru.

Original buyers

Railroad	Quantity	Road numbers	Notes
Chihuahua Pacific Railroad	10	801-810
Illinois Central Railroad Illinois Central Railroad The Illinois Central Railroad , sometimes called the Main Line of Mid-America, is a railroad in the central United States, with its primary routes connecting Chicago, Illinois with New Orleans, Louisiana and Birmingham, Alabama. A line also connected Chicago with Sioux City, Iowa...	12	9429-9440
Mississippi Central	1	211	to Illinois Central 9441
Southern Peru Copper Corporation	5	26-30
Kansas, Oklahoma and Gulf Railway Kansas, Oklahoma and Gulf Railway The Kansas, Oklahoma and Gulf Railway was formed on July 31, 1919 from the assets of the bankrupt Missouri, Oklahoma and Gulf Railway. The KO&G largely consisted of a single line from Baxter Springs, Kansas, to Denison, Texas, prior to its purchase by Missouri Pacific's Texas and Pacific Railway...	2	700, 701	to Texas and Pacific Railway Texas and Pacific Railway The Texas and Pacific Railway Company was created by federal charter in 1871 with the purpose of building a southern transcontinental railroad between Marshall, Texas, and San Diego, California....  570, 571, to Missouri Pacific Railroad Missouri Pacific Railroad The Missouri Pacific Railroad , also known as the MoPac, was one of the first railroads in the United States west of the Mississippi River. MoPac was a Class I railroad growing from dozens of predecessors and mergers, including the St. Louis, Iron Mountain and Southern Railway , Texas and Pacific...  7000, 7001
Texas-Mexican Railway	1	856
Total	31