An EMD SW1200 is a diesel switcher

Switcher

A switcher or shunter is a small railroad locomotive intended not for moving trains over long distances but rather for assembling trains ready for a road locomotive to take over, disassembling a train that has been...

 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 January 1954 and May 1966. Power was provided by an EMD 567C 12-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 1200 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...

 (890 kW). Late SW1200s built in 1966 were built with the 567E 12 cylinder engine.

737 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, 287 were built for Canadian

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 railroads 4 were built for Brazil

Brazil

Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

ian Railroads, 25 were built for a Chilean Industrial firm, and 3 were built for the Panama Canal Railway.

A Cow-calf

Cow-calf

In North American railroading, a cow-calf locomotive is a set of switcher-type diesel locomotives. The set usually is a pair; some 3-unit sets were built, but this was rare. A cow is equipped with a driving cab; a calf is not...

 variation, the TR12, was cataloged, but none were built.

Units built by Electro-Motive Division, USA

Railroad	Quantity	Road numbers	Notes
Aliquippa and Southern Railroad Aliquippa and Southern Railroad The Aliquippa and Ohio River Railroad is a six-mile short line railroad in Aliquippa, Pennsylvania, United States, controlled by Genesee & Wyoming Inc. through its ownership of the Ohio Central Railroad System...	13	1201–1213
Amapa Railway	4	1-4	Brazil
Ashley, Drew and Northern Railway Ashley, Drew and Northern Railway The Ashley, Drew and Northern Railway was a Class III railroad operating 40.7 miles of track between Monticello and Crossett, Arkansas. The railroad operated from 1912 until 1996.- History :...	2	176, 178
Atchison, Topeka and Santa Fe Railway Atchison, Topeka and Santa Fe Railway The Atchison, Topeka and Santa Fe Railway , often abbreviated as Santa Fe, was one of the larger railroads in the United States. The company was first chartered in February 1859...	3	2439–2441
Baltimore and Ohio Railroad Baltimore and Ohio Railroad The Baltimore and Ohio Railroad was one of the oldest railroads in the United States and the first common carrier railroad. It came into being mostly because the city of Baltimore wanted to compete with the newly constructed Erie Canal and another canal being proposed by Pennsylvania, which...	8	9614–9621
Bauxite and Northern Railway Bauxite and Northern Railway The Bauxite and Northern Railway is a Class III railroad operating in the United States state of Arkansas. BXN operates over of track in Bauxite, Arkansas. Traffic consists of largely of alumina, and the railroad hauls 4,059 carloads per year...	1	11
Bellefonte Central Railroad Bellefonte Central Railroad The Bellefonte Central Railroad was a shortline connecting Bellefonte and State College, Pennsylvania. Constructed in the late 19th century to haul local iron ore to furnaces in the Bellefonte region, it later hauled freight traffic to Penn State and lime for steelmaking from local quarries...	1	5624
Belt Railway of Chicago Belt Railway of Chicago The Belt Railway of Chicago , headquartered in Chicago, is the largest switching terminal railroad in the United States. It is co-owned by six Class I railroads — BNSF Railway, Canadian National Railway, Canadian Pacific Railway, CSX Transportation, Norfolk Southern Railway, and Union...	3	524–526
Birmingham Southern Railroad Birmingham Southern Railroad Birmingham Southern Railroad is a subsidiary of Transtar, operator of several short-line railroad companies. The BS operates on 84 miles of track, providing switching services in the Birmingham, Alabama area.-History:...	2	200–201
Chicago and Illinois Midland Railroad	6	18–23
Chicago and North Western Railway Chicago and North Western Railway The Chicago and North Western Transportation Company was a Class I railroad in the Midwest United States. It was also known as the North Western. The railroad operated more than of track as of the turn of the 20th century, and over of track in seven states before retrenchment in the late 1970s...	12	310–321	Acquired by EJ&E Railway then to Gary Railway Co. (315 and 316 not part of GRW fleet)
Chicago, Burlington and Quincy Railroad Chicago, Burlington and Quincy Railroad The Chicago, Burlington and Quincy Railroad was a railroad that operated in the Midwestern United States. Commonly referred to as the Burlington or as the Q, the Burlington Route served a large area, including extensive trackage in the states of Colorado, Illinois, Iowa, Kentucky, Missouri,...	22	9271–9292
Chicago, Milwaukee, St. Paul and Pacific Railroad Chicago, Milwaukee, St. Paul and Pacific Railroad The Milwaukee Road, officially the Chicago, Milwaukee, St. Paul and Pacific Railroad , was a Class I railroad that operated in the Midwest and Northwest of the United States from 1847 until its merger into the Soo Line Railroad on January 1, 1986. The company went through several official names...  (“Milwaukee Road”)	48	1637–1642, 2020–2061	Renumbered 600–619, 625–652 (not in order)
Chicago, Rock Island and Pacific Railroad Chicago, Rock Island and Pacific Railroad The Chicago, Rock Island and Pacific Railroad was a Class I railroad in the United States. It was also known as the Rock Island Line, or, in its final years, The Rock.-Incorporation:...	17	920–936
Chile Exploration	25	911–935	Chile
Colorado and Southern Railway Colorado and Southern Railway The Colorado and Southern Railway was a railroad company in the western United States that operated independently from 1898 to 1908, then as part of the Chicago, Burlington and Quincy Railroad until it was absorbed into the Burlington Northern Railroad in 1981.The railway began as the...	5	156–160
Commonwealth Edison Commonwealth Edison Commonwealth Edison is the largest electric utility in Illinois, serving the Chicago and Northern Illinois area...	1	16
Conemaugh and Black Lick Railroad	2	120–121
Coos Bay Lumber Company	3	1201–1203
Cuyahoga Valley Railway	7	1280–1286
Delaware, Lackawanna and Western Railroad Delaware, Lackawanna and Western Railroad The Delaware, Lackawanna and Western Railroad Company was a railroad connecting Pennsylvania's Lackawanna Valley, rich in anthracite coal, to Hoboken, New Jersey, , Buffalo and Oswego, New York...	8	561–568	to Erie Lackawanna 456–463
Denver and Rio Grande Western Railroad Denver and Rio Grande Western Railroad The Denver & Rio Grande Western Railroad , often shortened to Rio Grande or D&RGW, formerly the Denver & Rio Grande Railroad, is a defunct U.S. railroad company. The railroad started as a narrow gauge line running south from Denver, Colorado in 1870; however, served mainly as a transcontinental...	10	130–139
De Queen and Eastern Railroad De Queen and Eastern Railroad The De Queen and Eastern Railroad is a Class III short-line railroad headquartered in De Queen, Arkansas.QE operates of track in Arkansas on a line from De Queen, where it interchanges with both the Kansas City Southern Railway and Texas, Oklahoma and Eastern Railroad to Perkins, Arkansas, where...	1	D-5
Elgin, Joliet and Eastern Railway Elgin, Joliet and Eastern Railway The Elgin, Joliet and Eastern Railway is a Class II railroad that operates in the suburbs surrounding Chicago. The railroad is a link between Class I railroads in northeast Illinois and northwest Indiana...	8	300–307	300,301,303,304,305 and 307 are now part of the Gary Railway Co. fleet per the 2009 CN acquisition of EJ&E Railway.
Florida East Coast Railway Florida East Coast Railway The Florida East Coast Railway is a Class II railroad operating in the U.S. state of Florida; in the past, it has been a Class I railroad.Built primarily in the last quarter of the 19th century and the first decade of the 20th century, the FEC was a project of Standard Oil principal Henry Morrison...	7	229–235
Fort Worth and Denver Railway Fort Worth and Denver Railway The Fort Worth and Denver Railway , nicknamed "the Denver Road," was a class I American railroad company that operated in the northern part of Texas from 1881 to 1982, and had a profound influence on the early settlement and economic development of the region....	4	607–610
Grand Trunk Western Railroad Grand Trunk Western Railroad The Grand Trunk Western Railroad is an important subsidiary of the Canadian National Railway , constituting the majority of CN's Chicago Division ....	18	1269–1270, 1505–1508, 1511–1519, 7017–7019
Great Lakes Steel	16	16, 39–53
Great Northern Railway	6	29–33, 100
Houston Belt and Terminal Railway	5	33–37
Illinois Terminal Railroad Illinois Terminal Railroad The Illinois Terminal Railroad, known as the Illinois Traction System until 1937, was a heavy duty interurban electric railroad with extensive passenger and freight business in central and southern Illinois from 1896 to 1982...	12	775–786
Inland Steel Company Inland Steel Company The Inland Steel Company was a U.S. steel company active in 1893-1998. Its history as an independent firm thus spanned much of the 20th century. It was headquartered in Chicago, Illinois at the landmark Inland Steel Building....	27	88–114
Kansas City Terminal Railway Kansas City Terminal Railway The Kansas City Terminal Railway is a Class III railroad terminal railroad that serves as a joint operation of the trunk railroads that serve the Kansas City metropolitan area, the country's second largest rail hub. It is presently operated by the Kaw River Railroad.The Railway was created after a...	10	70–79
Lake Superior Terminal and Transfer	1	105
Louisville and Nashville Railroad Louisville and Nashville Railroad The Louisville and Nashville Railroad was a Class I railroad that operated freight and passenger services in the southeast United States.Chartered by the state of Kentucky in 1850, the L&N, as it was generally known, grew into one of the great success stories of American business...	4	2297–2300
Midland Electric Coal Company	1	1201
Minneapolis, Northfield and Southern Railway Minneapolis, Northfield and Southern Railway The Minneapolis, Northfield and Southern Railway was an long American short line railroad connecting Minneapolis and Northfield, Minnesota. It was incorporated in 1918 to take over the trackage of the former Minneapolis, St. Paul, Rochester and Dubuque Electric Traction Company, also known as...	6	30–35	to Soo Line
Minneapolis, St. Paul and Sault Ste. Marie Railroad Minneapolis, St. Paul and Sault Ste. Marie Railroad The Minneapolis, St. Paul and Sault Ste. Marie Railroad was a Class I railroad subsidiary of the Canadian Pacific Railway in the Midwest U.S. Commonly known as the Soo Line after the phonetic spelling of Sault, it was merged with several other major CP subsidiaries on January 1, 1961 to form the... , (“Soo Line”)	8	321–328	321, 323 and 324 were acquired by EJ&E Railway then part of Gary Railway Co.
Soo Line (Wisconsin Central Railroad)	8	2120–2127
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...	116	1100–1166, 1175–1201, 1255–1259, 1263–1279
Missouri Pacific (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.... )	20	1280–1299
Missouri-Kansas-Texas Railroad Missouri-Kansas-Texas Railroad The Missouri–Kansas–Texas Railroad was incorporated May 23, 1870. In its earliest days the MKT was commonly referred to as "the K-T", which was its stock exchange symbol; this common designation soon evolved into "the Katy"....	8	1–6, 43–44
New York, New Haven and Hartford Railroad New York, New Haven and Hartford Railroad The New York, New Haven and Hartford Railroad , was a railroad that operated in the northeast United States from 1872 to 1968 which served the states of Connecticut, New York, Rhode Island, and Massachusetts...	20	640–659
New Orleans Public Belt Railroad New Orleans Public Belt Railroad The New Orleans Public Belt Railroad is a non-profit terminal switching railroad, owned by the City of New Orleans. It connects with six Class I railroads serving the city, and provides switching and haulage service....	2	71–72
Norfolk and Portsmouth Belt Line Railroad	15	101–115
Northern Pacific Railway Northern Pacific Railway The Northern Pacific Railway was a railway that operated in the west along the Canadian border of the United States. Construction began in 1870 and the main line opened all the way from the Great Lakes to the Pacific when former president Ulysses S. Grant drove in the final "golden spike" in...	59	119–177
Oliver Iron Mining Company	9	940–948
Pacific Power and Light	1	10
Panama Canal Railway	3	661-663
Patapsco and Back Rivers Railroad	10	125–134
Pennsylvania Railroad Pennsylvania Railroad The Pennsylvania Railroad was an American Class I railroad, founded in 1846. Commonly referred to as the "Pennsy", the PRR was headquartered in Philadelphia, Pennsylvania....	35	7900–7934
Peoria and Pekin Union Railway Peoria and Pekin Union Railway The Peoria and Pekin Union Railway is a switching and terminal railroad in Illinois that began operating in 1881 and was leased to the Tazewell and Peoria Railroad in 2004. Its main yard and roundhouse are in East Peoria, Illinois, and it owns track on both sides of the Illinois River...	1	500
Philadelphia, Bethlehem and New England Railroad	5	39–43
Point Comfort and Northern Railway Point Comfort and Northern Railway The Point Comfort and Northern Railway is a Class III railroad operating in the United States state of Texas. The railroad operates over of track between Point Comfort, Texas and Lolita, Texas, where the railroad transfers cars with the Union Pacific Railroad.PCN was purchased by the holding...	1	4
Reading Company Reading Company The Reading Company , usually called the Reading Railroad, officially the Philadelphia and Reading Rail Road and then the Philadelphia and Reading Railway until 1924, operated in southeast Pennsylvania and neighboring states...	5	2715–2719
Republic Steel Corporation	2	362, 895
Reserve Mining Company	1	1212
Richmond, Fredericksburg and Potomac Railroad Richmond, Fredericksburg and Potomac Railroad The Richmond, Fredericksburg, and Potomac Railroad was a railroad connecting Richmond, Virginia, to Washington, D.C. It is now a portion of the CSX Transportation system....	5	81–85
River Terminal Railway	2	63–64
Rockdale, Sandow and Southern Railroad Rockdale, Sandow and Southern Railroad The Rockdale, Sandow and Southern Railroad is a Class III railroad operating in the United States state of Texas. It consists of of track between Rockdale and Marjorie, Texas.In 2005, the holding company RailAmerica purchased the railroad....	1	8
Sandersville Railroad Sandersville Railroad The Sandersville Railroad was originally operated from Tennille, Georgia, to Sandersville, Georgia and chartered in 1893 as a subsidiary of the Central of Georgia Railroad....	1	200
Simpson Logging Company	2	1200–1201
Southern Pacific Transportation Company	27	1597–1623
Southern Pacific (Texas and New Orleans Railroad Texas and New Orleans Railroad The Texas and New Orleans Railroad is a former railroad in Texas and Louisiana. At one point the company was the largest railroad in Texas, with of trackage in 1934, but by 1961 there were only remaining when it was merged with parent company Southern Pacific.... )	12	113–118, 123–128
St. Louis Southwestern Railway St. Louis Southwestern Railway The St. Louis Southwestern Railway , known by its nickname of "The Cotton Belt Route" or simply Cotton Belt, was organized on January 15, 1891, although it had its origins in a series of short lines founded in Tyler, Texas, in 1870 that connected northeastern Texas to Arkansas and southeastern...  (“Cotton Belt”)	17	1062–1073, 2289–2293
Steelton and Highspire Railroad	1	44
Terminal Railroad Association of St. Louis Terminal Railroad Association of St. Louis The Terminal Railroad Association of St. Louis is a terminal railroad owned by railroads in St. Louis, Missouri which handles traffic through its metropolitan area.-Components:It was founded in 1889 in a deal orchestrated by Jay Gould by:...	25	1219–1243
Tooele Valley Railway	1	100
U.S. Steel U.S. Steel The United States Steel Corporation , more commonly known as U.S. Steel, is an integrated steel producer with major production operations in the United States, Canada, and Central Europe. The company is the world's tenth largest steel producer ranked by sales...	2	SX1–SX2
Wabash Railroad Wabash Railroad The Wabash Railroad was a Class I railroad that operated in the mid-central United States. It served a large area, including trackage in the states of Ohio, Indiana, Illinois, Iowa, Michigan, Missouri and Ontario. Its primary connections included Chicago, Illinois, Kansas City, Missouri, Detroit,...	5	375–379
West Virginia Northern Railroad West Virginia Northern Railroad The West Virginia Northern Railroad was a short line railroad that ran from Kingwood to Tunnelton in Preston County, West Virginia. It operated from 1886 to 1991...	1	52
Weyerhaeuser Timber Company Weyerhaeuser Weyerhaeuser is one of the largest pulp and paper companies in the world. It is the world's largest private sector owner of softwood timberland; and the second largest owner of United States timberland, behind Plum Creek Timber...	1	304
Wheeling Steel	7	1250, 1254–1259
Woodward Iron Company Woodward Iron Company The Woodward Iron Company was founded on December 31, 1881, by two brothers, William & Joseph Woodward. William was the company president and Joseph was the company secretary. The company operated mines, quarries and furnaces that were connected by a private industrial railroad in Bessemer,...	1	52
Total	769

Units built by General Motors Diesel, Canada

Railroad	Quantity	Road numbers	Notes
Canadian Forest Products	3	301–303
Canadian National Railway Canadian National Railway The Canadian National Railway Company is a Canadian Class I railway headquartered in Montreal, Quebec. CN's slogan is "North America's Railroad"....	208	1227–1268, 1271–1397, 1575–1597, 7020–7035
Canadian Pacific Railway Canadian Pacific Railway The Canadian Pacific Railway , formerly also known as CP Rail between 1968 and 1996, is a historic Canadian Class I railway founded in 1881 and now operated by Canadian Pacific Railway Limited, which began operations as legal owner in a corporate restructuring in 2001...	72	8100–8171
Dominion Foundries and Steel (“Dofasco Dofasco Dofasco is a steel company based in Hamilton, Ontario, Canada, which is also home to longtime Canadian rival Stelco. Dofasco is currently a standalone subsidiary of ArcelorMittal, the world's largest steel producer. Previously ordered by the U.S... ”)	1	14
Essex Terminal Railway Essex Terminal Railway Essex Terminal Railway is a Canadian shortline terminal railroad, running from the City of Windsor, Ontario through La Salle, to the Town of Amherstburg, Ontario, for a distance of approximately 21 miles . The ETR has direct connections to Canadian Pacific Railway, Canadian National Railway...	1	105
Quebec Iron and Titanium	1	5	Romaine River Ry
Roberval and Saguenay Railway Roberval and Saguenay Railway The Roberval and Saguenay Railway is a small railway company, wholly owned by Rio Tinto Alcan. It carries raw materials in portions of northern Quebec province, Canada. With about of track in total, it touches on such spots as Chicoutimi and Arvida and connects to the Canadian National Railway....	1	23
Total	287

Surviving and preserved units

Lake Superior Terminal and Transfer Railway 105 is operated by the Minnesota Transportation Museum

Minnesota Transportation Museum

The Minnesota Transportation Museum is a transport museum in Saint Paul, Minnesota.The MTM operates several heritage transportation sites in Minnesota and one in Wisconsin...

 as Northern Pacific Railway

Northern Pacific Railway

The Northern Pacific Railway was a railway that operated in the west along the Canadian border of the United States. Construction began in 1870 and the main line opened all the way from the Great Lakes to the Pacific when former president Ulysses S. Grant drove in the final "golden spike" in...

 105.


Terminal Railroad Association of St. Louis

Terminal Railroad Association of St. Louis

The Terminal Railroad Association of St. Louis is a terminal railroad owned by railroads in St. Louis, Missouri which handles traffic through its metropolitan area.-Components:It was founded in 1889 in a deal orchestrated by Jay Gould by:...

 1219 built for Canadian National Railway

Canadian National Railway

The Canadian National Railway Company is a Canadian Class I railway headquartered in Montreal, Quebec. CN's slogan is "North America's Railroad"....

is operated by Fremont Dinner Train as the "Glen Bales" 1219 and currently pulls diner cars as a for-profit corporate venture.