View source for List of most powerful locomotives

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As railroads around the world haul larger quantities of freight efficiently, the title of '''world's most powerful locomotive''' has often been passed to new generations of rolling stock.
==Standard==
There are many ways in which a locomotive can be the largest: the heaviest, longest, most cylinders, most power, or most wheels. It is often defined as the longest in length, but even then sources differ on whether the measurement should include the tender of a steam locomotive. A steam locomotive that has a tender cannot function without it, but (with [[triplex locomotive|rare exceptions]]) the tender does not contribute to traction. To establish the "largest" category, several factors take precedence: overall weight, which gives traction over driving axles; size (length and height of engine itself); and power, which may be in terms of raw horsepower, tractive effort, available power at axles (shaft horsepower) or, in the case of steam locomotives, available steam on a sustained basis.
==List==
{{Incomplete list|date=October 2012}}
{| class="wikitable sortable"
|-
!Name
!Original owner
!Fleet numbers
!Manufacturer
!data-sort-type="date"| Year of manufacture
![[Locomotive#Motive power| Drive type]]
![[Wheel arrangement]]
!data-sort-type="number" | Weight
!data-sort-type="number" | [[Tractive force|Tractive effort/force]]
!data-sort-type="number" | [[Power (physics)|Power]]
!class="unsortable"|Notes
!Image
|-
|''[[2ES10|2ЭС10 with 2ЭС10С unit]]''
|[[Russian Railways]]
|{{N/A}}
|[[Ural Locomotives]]
|2014–present
|Electric
|3×Bo'Bo'
|{{convert|300|t|t ST|0|lk=on|order=out}}
|{{convert|264375|lbf|lbf kN|0|lk=on|order=out}}
|{{convert|17701|hp|hp kW|0|lk=on|order=out}} 1-hour rating
|Three sections modification of [[2ES10]].
|
|-
|''{{interlanguage link|4ЭС5К|ru|Э5К#4ЭС5К}}''
|Russian Railways
|{{N/A}}
|Novocherkassk Electric Locomotive Plant
|2014–present
|Electric
| 4×Bo'Bo'
|{{convert|392|t|t ST|0|lk=on|order=out}}
|{{convert|304840|lbf|lbf kN|0|lk=on|order=out}}
|{{convert|17594|hp|hp kW|0|lk=on|order=out}} 1-hour rating
|Four sections modification of [[E5K]].
|
|-
| ''[[CFR Class EA|060-EA]]''
| [[Romanian Railways]] (CFR) and numerous private railways in Romania and Hungary
| 40 (060-EA): 120&nbsp;km/h, 41 (060-EA1): 160&nbsp;km/h, 42: 200&nbsp;km/h
| [[ASEA]] (first ten), [[Electroputere Craiova]] (the rest, approx. 1,000)
| 1965-91
| Electric
| Co'Co'
| {{convert|120|t|t ST|0|lk=on|order=out}}
| {{convert|93000|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|6839|hp|hp kW|0|lk=on|order=out}}
| Powerful locomotive in the 1970s; high continuous tractive effort.
|
|-
|[[2-10-10-2]]
|[[Atchison, Topeka & Santa Fe Railway|Santa Fe]] and [[Virginian Railway]]
|3000-3009 (Santa Fe) 800-809 (Virginian)
|[[Baldwin Locomotive Works]] (Santa Fe)<br/>[[American Locomotive Company]] (Virginian)
|1911-1912, 1918
|Steam
|[[2-10-10-2]]
|{{convert|415|t|t ST|0|lk=on|order=out}}
|{{convert|175000|lbf|lbf kN|0|lk=on|order=out}} simple; {{convert|147200|lbf|lbf kN|0|lk=on|order=out}} compound
|{{N/A}}
|Weight and performance figures listed for the Virginian variant, as that locomotive was the heavier and more powerful of the two.
|
|-
| [[Soviet locomotive class AA20|AA20]]
| [[Russian Railways]]
|{{N/A}}
| [[Voroshilovgrad Locomotive Factory|Voroshilovgrad]]
| 1934
| Steam
| 4-14-4
| {{convert|140|t|t ST|0|lk=on|order=out}}
| {{convert|71940|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|3652|hp|hp kW|0|lk=on|order=out}}
| Largest non-articulated steam locomotive, and the only seven-axle non-articulated steam locomotive ever built.
|
|-
| ''[[New South Wales AD60 class locomotive|AD60 class]]''
| [[New South Wales Government Railways]]
| 6001-6042
| [[Beyer, Peacock & Company]]
| 1952–1954, 1956
| Steam
| [[4-8-4+4-8-4]]
| {{convert|255|t|t ST|0|lk=on|order=out}}
| {{convert|59,575|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|5930|hp|hp kW|0|lk=on|order=out}}
| Largest steam locomotive ever operated in Australia<ref>NSWGR AD60 Class Beyer-Garratt Locos ''[[Locomotives International]]'' issue 132 August 2021 page 16</ref>
|
|-
| ''[[SBB-CFF-FFS Ae 6/6|Ae 6/6]]''
| [[Swiss Federal Railways]]
| 11401-11520
| [[Swiss Locomotive & Machine Works|SLM]], [[Maschinenfabrik Oerlikon|MFO]]/[[Brown, Boveri & Cie|BBC]]
| 1952; 1955–66
| Electric
| Co'Co'
| {{convert|120|t|t ST|0|lk=on|order=out}}
| {{convert|88,125|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|5766|hp|hp kW|0|lk=on|order=out}} continuous
| Still in operation {{As of|October 2012|lc=yes}}
|
|-
| ''[[:de:BLS Ae 6/8|Ae 6/8]]''
| BLS, Switzerland
| 201-208
| SLM / Sécheron
| 1939
| Electric
| (1'Co)(Co1')
| {{convert|140|t|t ST|0|lk=on|order=out}}
| {{convert|79,360|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|5914|hp|hp kW|0|lk=on|order=out}} 1-hour rating
| Two remain in working order as heritage locos{{When|date=March 2021}}
|
|-
| ''[[:de:BLS Ae 8/8|Ae 8/8]]''
| BLS, Switzerland
| 271-275
| SLM / BBC
| 1959-66
| Electric
| (Bo)(Bo)+(Bo)(Bo)
| {{convert|160|t|t ST|0|lk=on|order=out}}
| {{convert|46000|kgf|lbf kN|0|lk=on|order=out}} starting; {{convert|31000|kgf|lbf kN|0|lk=on|order=out}} 1-hour rating
| {{convert|8800|PS|hp kW|0|lk=on|order=out}} 1-hour rating
| <ref>{{cite journal |last1=Grossmann |first1=W. |title=Zugförderung am Lötschberg und Beschreibung der Ae8/8 Lokomotive |journal=Schweizerische Bauzeitung |date=1959 |volume=77 |issue=39 |page=629 |url=https://www.e-periodica.ch/digbib/view?rid=sbz-002:1959:77::519#3145 |access-date=20 August 2024 |language=German}}</ref>
One preserved in working order.{{When|date=March 2021}}
|
|-
| ''[[SBB-CFF-FFS Ae 8/14|Ae 8/14]]''
| [[Swiss Federal Railways]]
| 11852
| [[Swiss Locomotive & Machine Works|SLM]], [[Maschinenfabrik Oerlikon|MFO]]/[[Brown, Boveri & Cie|BBC]]
| 1939
| Electric
| (1'A)A1'A(A1')+(1'A)A1'A(A1')
| {{convert|236|t|t ST|0|lk=on|order=out}}
| {{convert|110,160|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|10945|hp|hp kW|0|lk=on|order=out}} 1-hour rating; {{convert|10255|hp|hp kW|0|lk=on|order=out}} continuous
| Exhibit at [[Swiss Museum of Transport]]
|
|-
| ''[[2-6-6-6|Allegheny]]''
| [[Chesapeake & Ohio Railway]]<br/>[[Virginian Railway]]
| 1600-1659 (C&O), 900-907 (VGN)
| [[Lima Locomotive Works]]
| 1941&ndash;48
| Steam
| [[2-6-6-6]]
| {{convert|544|t|t ST|0|lk=on|order=out}}
| {{convert|110,000|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|7500|hp|hp kW|0|lk=on|order=out}}
| Two on static display
|
|-
| ''[[Union Pacific GTELs#Third Generation|Big Blow]]''
| [[Union Pacific]]
| 1-30 (control cab), 1B-30B (turbine unit)
| [[GE Transportation|General Electric]]
| 1958&ndash;61
| Gas turbine-electric
| [[AAR wheel arrangement#C-C+C-C|C-C+C-C]]
| {{convert|425|t|t ST|0|lk=on|order=out}}
| {{convert|212,312|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|8469|hp|hp kW|0|lk=on|order=out}}; over 10,000&nbsp;hp at lower altitude and ambient temperatures (turbine only)
| Two preserved in museums; Surpassed by {{interlanguage link|GT1s|ru|ГТ1}}.
|
|-
| ''[[Union Pacific Big Boy|Big Boy]]''
| [[Union Pacific]]
| 4000-4024
| [[American Locomotive Company|ALCO]]
| 1941-&ndash;44
| Steam
| [[4-8-8-4]]
| {{convert|548|t|t ST|0|lk=on|order=out}}
| {{convert|135,375|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|6290|hp|hp kW|0|lk=on|order=out}}
| Several on static display. [[Union Pacific 4014|No. 4014]] in service with the UP Heritage Steam collection<ref>[https://www.railwayage.com/freight/class-i/big-boy-4014-is-back-up-restores-runs-iconic-train/?RAchannel=news Big Boy 4014 is back: UP restores, runs iconic train] ''[[Railway Age]]'' May 8, 2019</ref>
|
|-
| ''[[China Railways BJ|BJ 6001]]''
| [[China Railway]]
| 北京6001
| Beijing Feb. 7th
| 1969
| Diesel-hydraulic
| D'D'
| {{N/A}}
| {{N/A}}
| {{convert|6000|hp-metric|hp kW|0|lk=on|order=out}}
| Most powerful [[diesel-hydraulic locomotive]] ever built.
|
|-
| ''[[Union Pacific Challenger|Challenger]]''
| [[Union Pacific]]
| 3950-3999
| [[American Locomotive Company|ALCO]]
| 1936&ndash;43
| Steam
| [[4-6-6-4]]
| {{convert|485|t|t ST|0|lk=on|order=out}}
| {{convert|97,350|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|5000|hp|hp kW|0|lk=on|order=out}}
| Two locomotives preserved, one on static display. [[Union Pacific 3985]] operated for company PR and occasional excursion service from 1981 to 2010. Donated to Railroading Heritage of Midwest America in April 2022<ref>Union Pacific donates Challenger for overhaul ''[[Steam Railway]]'' issue 532 May 27, 2022 page 22</ref>
|
|-
|''[[China Railways DF8|China Railways DF8DJ]]''
|[[China Railway]]
|DF8DJ0001, later DF8B5672
|[[CSR Ziyang]]
|2006
|Diesel-electric
|Co'Co'
|{{convert|150|t|t ST|0|lk=on|order=out}}
|{{convert|130389|lbf|lbf kN|0|lk=on|order=out}} starting
{{convert|98916|lbf|lbf kN|0|lk=on|order=out}} continuous
|{{convert|6437|hp|hp kW|0|lk=on|order=out}}
|Most powerful single-engine diesel locomotive ever built.
|
|-
| ''[[China Railways HXD1]]''
| [[China Railway]]
| HXD10001 - HXD10220
| CSR Zhuzhou Electric Locomotive, Siemens
| 2006&ndash;08
| Electric
| Bo'Bo'+Bo'Bo'
| {{convert|200|t|t ST|0|lk=on|order=out}}
| {{convert|760|kN|lbf kN|0|lk=on|order=out}} starting
| {{convert|9600|kW|hp kW|0|lk=on|order=out}} continuous
| {{N/A}}
|
|-
| ''China Railways HXD1B''
| [[China Railway]]
| HXD1B0001-HXD1B0500
| CSR Zhuzhou Electric Locomotive, Siemens
| 2009&ndash;
| Electric
| Co'Co'
| {{convert|150|t|t ST|0|lk=on|order=out}}
| {{N/A}}
| {{convert|12874|hp|hp kW|0|lk=on|order=out}}
| One of the most powerful single-frame locomotives currently{{When|date=March 2021}} in series production.
|
|-
| ''[[China Railways HXD1C]]''
| [[China Railway]]
| HXD1C0001-HXD1C0990
| CSR Zhuzhou Electric Locomotive, Siemens
| 2009&ndash;
| Electric
| Co'Co'
| {{convert|150|t|t ST|0|lk=on|order=out}}
| {{convert|570|kN|lbf kN|0|lk=on|order=out}} starting
| {{convert|7200|kW|hp kW|0|lk=on|order=out}}
| {{N/A}}
|
|-
| ''[[China Railways HXD2]]''
| [[China Railway]]
| HXD20001-
HXD20180
| [[CRRC Datong|Datong Electric Locomotive]], Alstom
| 2006&ndash;08
| Electric
| Bo'Bo'+Bo'Bo'
| {{convert|200|t|t ST|0|lk=on|order=out}}
| {{convert|760|kN|lbf kN|0|lk=on|order=out}} starting
| {{convert|10000|kW|hp kW|0|lk=on|order=out}} continuous
| {{N/A}}
|
|-
| ''[[China Railways HXD2B]]''
| [[China Railway]]
| HXD2B0001-HXD2B0500
| Datong Electric Locomotive, Alstom
| 2009&ndash;
| Electric
| Co'Co'
| {{convert|150|t|t ST|0|lk=on|order=out}}
| {{convert|584|kN|lbf kN|0|lk=on|order=out}} starting;
{{convert|455|kN|lbf kN|0|lk=on|order=out}} continuous
| {{convert|9600|kW|hp kW|0|lk=on|order=out}}
| <ref>{{cite web |title=HXD2B型大功率交流传动电力机车 |url=http://www.chinacnr.com/p325.aspx?ProductID=916&ParentID=6 |publisher=[[China CNR]] |archive-url=https://web.archive.org/web/20111004154739/http://www.chinacnr.com/p325.aspx?ProductID=265&ParentID=6 |archive-date=4 October 2011 |url-status=dead}}</ref>
One of the most powerful single-frame locomotives currently{{When|date=March 2021}} in series production.
|
|-
| ''[[China Railways HXD2C]]''
| [[China Railway]]
| HXD2C0001-
| Datong Electric Locomotive, Alstom
| 2010&ndash;
| Electric
| Co'Co'
| {{convert|150|t|t ST|0|lk=on|order=out}}
| {{convert|570|kN|lbf kN|0|lk=on|order=out}} starting;
{{convert|400|kN|lbf kN|0|lk=on|order=out}} continuous
| {{convert|7200|kW|hp kW|0|lk=on|order=out}}
| {{N/A}}
|
|-
| ''[[China Railways HXD3]]''
| [[China Railway]]
| HXD30001-HXD30890, HXD38001-38150
| [[Toshiba]], Dalian Locomotive
| 2006&ndash;09
| Electric
| Co'Co'
| {{convert|150|t|t ST|0|lk=on|order=out}}
| {{convert|570|kN|lbf kN|0|lk=on|order=out}}
| {{convert|7200|kW|hp kW|0|lk=on|order=out}}
| {{N/A}}
|
|-
| ''[[China Railways HXD3B]]''
| [[China Railway]]
| HXD3B0001-HXD3B0500
| Dalian, [[Bombardier Transportation|Bombardier]]
| 2009&ndash;
| Electric
| Co'Co'
| {{convert|150|t|t ST|0|lk=on|order=out}}
| {{convert|570|kN|lbf kN|0|lk=on|order=out}} starting; {{convert|506|kN|lbf kN|0|lk=on|order=out}}
| {{convert|9600|kW|hp kW|0|lk=on|order=out}} 1-hour rating
| One of the most powerful single-frame locomotives currently{{When|date=March 2021}} in series production.
|
|-
| ''[[China Railways HXD3C]]''
| [[China Railway]]
| HXD3C0001-
| Dalian, Bombardier
| 2010&ndash;
| Electric
| Co'Co'
| {{convert|150|t|t ST|0|lk=on|order=out}}
| {{convert|570|kN|lbf kN|0|lk=on|order=out}} starting;
{{convert|400|kN|lbf kN|0|lk=on|order=out}} continuous
| {{convert|7200|kW|hp kW|0|lk=on|order=out}}
| <ref>{{cite web |title=HXD3C passenger/freight electric locomotive |url=http://www.crrcgc.cc/dlen/g10688/s20471/t269238.aspx |publisher=CRRC |archive-url=https://web.archive.org/web/20230411223525/http://www.crrcgc.cc/dlen/g10688/s20471/t269238.aspx |archive-date=2023-04-11 |date=2016-05-04 |url-status=dead}}</ref><ref>{{cite web |title=Type HXD3C Electric Locomotive |url=https://www.crrcgc.cc/en/2016-03/01/article_32F15C2A44954F3FA53A0A74525DBF96.html |publisher=CRRC |access-date=11 November 2024 |date=2016}}</ref>
|
|-
| ''[[EMD JT56ACe|China Railways HXN3]]''
| [[China Railway]]
| HXN30001 - HXN30300
| Dalian Locomotive, [[Electro-Motive Diesel]]
| 2008&ndash;
| Diesel-Electric
| Co'Co'
| {{convert|150|t|t ST|0|lk=on|order=out}}
| {{convert|620|kN|lbf kN|0|lk=on|order=out}} starting;
{{convert|598|kN|lbf kN|0|lk=on|order=out}} continuous
| {{convert|4660|kW|hp kW|0|lk=on|order=out}}
| Most powerful diesel-electric locomotive in active production.{{When|date=March 2021}}
|
|-
| ''[[China Railways HXN5]]''
| [[China Railway]]
| HXN50001 - HXN50300
| GE, [[CRRC Qishuyan]]
| 2008&ndash;
| Diesel-Electric
| Co'Co'
| {{convert|150|t|t ST|0|lk=on|order=out}}
| {{convert|140,000|lbf|lbf kN|0|lk=on|order=out}} starting; {{convert|127,000|lbf|lbf kN|0|lk=on|order=out}} continuous
| {{convert|6250|hp|hp kW|0|lk=on|order=out}}
| Most powerful diesel-electric locomotive in active production.{{When|date=March 2021}}
|
|-
| ''[[JŽ series 461|Class 461]]''
| [[Serbian Railways|Železnice Srbije]], Serbia
| ŽS461-0/1, ŽS461-2
| [[Electroputere]] Craiova, Romania
| 1965–91
| Electric
| Co'Co'
| {{convert|120|t|t ST|0|lk=on|order=out}}
| {{convert|88125|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|7638|hp|hp kW|0|lk=on|order=out}}
| Operational in Romania, Serbia, Montenegro, Bulgaria, Hungary & Macedonia.{{When|date=March 2021}}
|
|-
| ''[[DB Class 101]]''
| [[Deutsche Bahn]]
| 101 001-145
| [[Adtranz]]
| 1996&ndash;99
| Electric
| Bo'Bo'
| {{convert|83|t|t ST|0|lk=on|order=out}}
| {{convert|67443|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|8583|hp|hp kW|0|lk=on|order=out}} continuous
| Maximum speed 220&nbsp;km/h (137&nbsp;mph).
|
|-
| ''[[DB Class 103]]''
| [[Deutsche Bahn]]
| 103 101-245
| [[AEG (German company)|AEG]], [[Brown, Boveri & Cie]], [[Henschel]], [[Krauss-Maffei]], [[Krupp]], [[Siemens Mobility|Siemens]]
| 1970&ndash;73
| Electric
| Co'Co'
| {{convert|114|t|t ST|0|lk=on|order=out}}
| {{convert|70,140|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|16270|hp|hp kW|0|lk=on|order=out}} or {{convert|13900|hp|hp kW|0|lk=on|order=out}} short term;
{{convert|10433|hp|hp kW|0|lk=on|order=out}} 1-hour rating;
{{convert|9977|hp|hp kW|0|lk=on|order=out}} continuous rating
| One of the most powerful electric locomotives ever built, it also is the most powerful (short term) single-frame locomotive ever built (currently{{When|date=March 2021}} its maximum short term power is limited to {{convert|12000|hp|hp kW|0|lk=on|order=out}}); It has immense short term power with a tractive effort of 312&nbsp;kN up to a speed of 140&nbsp;km/h (87&nbsp;mph).
|
|-
| ''[[DB Class 151]]''
| [[Deutsche Bahn]]
| 151 001-170
| [[AEG (German company)|AEG]], [[Brown, Boveri & Cie|BBC]], [[Henschel]], [[Krauss-Maffei]], [[Krupp]], [[Siemens Mobility|Siemens]]
| 1972&ndash;78
| Electric
| Co'Co'
| {{convert|118|t|t ST|0|lk=on|order=out}}
| {{convert|88,800|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|8432|hp|hp kW|0|lk=on|order=out}}
| Powerful freight locomotive in the 1970s with high continuous tractive effort.
|
|-
| ''[[:de:DSB EG|DSB EG]]''
| [[DB Cargo|DB Schenker Rail]]
| 3103-3113
| [[Siemens Mobility|Siemens]]
| 1999&ndash;2000
| Electric
| Co'Co'
| {{convert|132|t|t ST|0|lk=on|order=out}}
| {{convert|400|kN|lbf kN|0|lk=on|order=out}}
| {{convert|6500|kW|hp kW|0|lk=on|order=out}} continuous
| One of the most powerful single-frame electric locomotives in operation in Europe{{When|date=March 2021}}; surpassed by {{interlanguage link|Euro 9000|de|Stadler Euro 9000}}.
|
|-
| ''[[EMD DDA40X]]''
| [[Union Pacific]]
| 6900-6946
| [[Electro-Motive Diesel]]
| 1969&ndash;71
| Diesel-electric
| Do'Do'
| {{convert|244|t|t ST|0|lk=on|order=out}}
| {{convert|113,940|lbf|lbf kN|0|lk=on|order=out}} starting; {{convert|103,000|lbf|lbf kN|0|lk=on|order=out}} continuous
| {{convert|6600|hp|hp kW|0|lk=on|order=out}}
| [[Union Pacific 6936|One operational]], 13 in various museums; largest operational single-unit diesel locomotive and the most powerful.{{When|date=March 2021}}
|
|-
|[[EMD SD70 series#SD70ACe-T4 (2015–present)|EMD SD70ACe-T4]]
|[[Union Pacific]]
[[BNSF]]
[[CSX]]
|3000-3099 (Union Pacific)
|[[Electro-Motive Diesel]] (EMD)
|2015–present
|Diesel-electric
|Co'Co'
|{{convert|194|t|t ST|0|lk=on|order=out}}
|{{convert|200000|lbf|lbf kN|0|lk=on|order=out}} starting
{{convert|175000|lbf|lbf kN|0|lk=on|order=out}} continuous
|{{convert|4400|hp|hp kW|0|lk=on|order=out}}
|{{N/A}}
|
|-
| ''[[EMD SD90MAC]]''
| [[Union Pacific]]
| 8500-8561
| [[Electro-Motive Diesel]]
| 1996&ndash;2002
| Diesel-electric
| Co'Co'
| {{convert|193|t|t ST|0|lk=on|order=out}}
| {{convert|200,000|lbf|lbf kN|0|lk=on|order=out}} starting; {{convert|165,000|lbf|lbf kN|0|lk=on|order=out}} continuous
| {{convert|6300|hp|hp kW|0|lk=on|order=out}}
| Retired from service, some on lease with EMLX{{When|date=March 2021}}.
|
|-
|[[2-8-8-8-2|Erie Class P-1]]
|[[Erie Railroad]]
|2603-2605, later 5014-5016
|[[Baldwin Locomotive Works]]
|1914-1916
|Steam
|[[2-8-8-8-2]]
|{{convert|531|t|t ST|0|lk=on|order=out}}
|{{convert|176256|lbf|lbf kN|0|lk=on|order=out}}
|{{N/A}}
|Maximum speed approx. 10&nbsp;mph.
|
|-
| ''[[EuroSprinter]]''
| [[Deutsche Bahn]], [[ÖBB]]
| {{N/A}}
| [[Krauss-Maffei]], [[Siemens Mobility|Siemens]]
| 1996&ndash;2001
| Electric
| Bo'Bo'
| {{convert|86|t|t ST|0|lk=on|order=out}}
| {{convert|300|kN|lbf kN|0|lk=on|order=out}}
| {{convert|9790|hp|hp kW|0|lk=on|order=out}} short term;
{{convert|8583|hp|hp kW|0|lk=on|order=out}} continuous
| Maximum speed 230&nbsp;km/h (143&nbsp;mph); Taurus Rh 1216 050-5 holds the world speed record for conventional electric locomotives {{When|date=March 2021}} at 357&nbsp;km/h (222&nbsp;mph).
|
|-
| ''[[Eurotunnel Class 9]]''
| [[Getlink]]
| 9000
| Euroshuttle Locomotive Consortium
| 1993-2002
| Electric
| [[Bo-Bo-Bo]]
| {{convert|132|t|t ST|0|lk=on|order=out}}
| {{convert|400|kN|lbf kN|0|lk=on|order=out}} starting;
{{convert|310|kN|lbf kN|0|lk=on|order=out}} continuous
| {{convert|7000|kW|hp kW|0|lk=on|order=out}}
| Always used in pairs (one at each end of the train). Early versions were {{convert|5.6|MW|hp kW|0|lk=on|order=out}} but most have been rebuilt to 7 MW.
|
|-
| ''[[GE AC6000CW]]''
| [[Union Pacific]]; [[CSX]]; [[BHP]]
| 600–699, 5000–5016, 6070–6077, 7500-7579 (being overhauled{{When|date=March 2021}} and renumbered 69xx)
| General Electric
| 1996&ndash;2001
| Diesel-electric
| Co'Co'
| {{convert|196|t|t ST|0|lk=on|order=out}}
| {{convert|188,000|lbf|lbf kN|0|lk=on|order=out}} starting; {{convert|166,000|lbf|lbf kN|0|lk=on|order=out}} continuous
| {{convert|6250|hp|hp kW|0|lk=on|order=out}}
| Actual HP output on early production units is 4,350&nbsp;hp due to use of the 7FDL engine.
|
|-
|{{interlanguage link|GT1s|ru|ГТ1}}
|Russian Railways
|{{N/A}}
|Sinara transport machines
|{{N/A}}
|Gas turbine-electric
|{{N/A}}
|{{convert|360|t|t ST|0|lk=on|order=out}}
|{{convert|220313|lbf|lbf kN|0|lk=on|order=out}}
|{{convert|11130|hp|hp kW|0|lk=on|order=out}}
|Currently the most powerful non-electric locomotive ever produced.
|
|-
| ''H220''
| [[Victorian Railways]]
| [[Victorian Railways H class|H class]]
| [[Newport Workshops]]
| 1941–1958
| Steam
| [[4-8-4]]
| {{convert|265|t|t ST|0|lk=on|order=out}}
| {{convert|55,060|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|3,600|hp|hp kW|0|lk=on|order=out}}
| The most powerful steam locomotive built in Australia at the time. Only one was constructed, preserved at the [[Australian Railway Historical Society Museum]].<ref>{{Victorian Rail-Newsrail|title=Heavy Harry, H220|month=4|year=1978|page=55}}</ref>
|
|-
| ''[[Indian locomotive class WAG-7]]''
|[[Indian Railways]]
| 27001–27999, 28000–28770, 24501-24700
| [[Chittaranjan Locomotive Works|Chittaranjan Locomotive Works, India]], [[Bharat Heavy Electricals|BHEL, India]]
| 1992
| Electric
| Co'Co'
| {{convert|132|t|t ST|0|lk=on|order=out}}
| {{convert|135000|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|5,350|hp|hp kW|0|lk=on|order=out}}
| The WAG-7 is one of the most successful locomotives of [[Indian Railways]] currently serving both [[freight]] and [[passenger trains]] for over 31 years
|
|-
| ''[[Indian locomotive class WAG-9]]''
|[[Indian Railways]]
|
| [[Chittaranjan Locomotive Works]], Electric Locomotive Works, [[Bhusawal]]
| 1996–
| Electric
| Co'Co'
| {{convert|123|t|t ST|0|lk=on|order=out}}
| {{convert|100000|lbf|lbf kN|0|lk=on|order=out}}; {{convert|73000|lbf|lbf kN|0|lk=on|order=out}} continuous
| {{convert|6600|hp|hp kW|0|lk=on|order=out}}
|WAG-9 has quickly become one of the important locos in the Indian railways.
|
|-
| ''[[Indian locomotive class WAG-9H]]''
|[[Indian Railways]]
|
| [[Chittaranjan Locomotive Works]], Electric Locomotive Works, [[Bhusawal]]
| 2000–
| Electric
| Co'Co'
| {{convert|132|t|t ST|0|lk=on|order=out}}
| {{convert|120000|lbf|lbf kN|0|lk=on|order=out}}<br/> Continuous:{{convert|73000|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|6600|hp|hp kW|0|lk=on|order=out}}
|The WAG-9 locomotive is referred to as the "Heavy Haul" freight locomotive of the [[Indian Railways]]
|
|-
|''[[Indian locomotive class WAG-9|Indian locomotive class WAG-9HH]]''
|[[Indian Railways]]
|90001+
|[[Chittaranjan Locomotive Works|Chittaranjan Locomotive Works, India]]
|2019-
|Electric
|Co'Co'
|{{convert|135|t|t ST|0|lk=on|abbr=|order=out}}
|
|{{convert|9000|hp|hp kW|0|lk=on|abbr=|order=out}}
|A passenger variant of the WAG-9 was developed namely the WAP-7 locomotive by modifying the gear ratio to pull lighter loads at higher speeds.
|
|-
|''[[Indian locomotive class WAG-11]]''
|[[Indian Railways]]
|29001+
|[[Banaras Locomotive Works|Banaras Locomotive Works Varanasi]]
|2018–Present
|Electric
|Co'Co'+Co'Co'
|
|
|{{convert|12000|hp|hp kW|0|lk=on|abbr=|order=out}}
|India's Indigenously developed 12000hp electric loco.
|
|-
|''[[Indian locomotive class WAG-12]]''
|[[Indian Railways]]
|WAG12B60001+ onward
|[[Electric Locomotive Factory, Madhepura|ELF Madhepura]]
|2018–present
|Electric
|Bo'Bo'+Bo'Bo'
|{{convert|180|t|t ST|0|lk=on|order=out}}
Up-gradable to {{convert|200|t|t ST|0|lk=on|order=out}}
|{{convert|176475|lbf|lbf kN|0|lk=on|order=out}} starting
|
{{convert|12000|hp|hp kW|0|lk=on|abbr=|order=out}}
|With a power output of 12,000 hp, the WAG 12 is twice as powerful as its immediate predecessor, [[WAG-9]].
|
|-
| ''[[IORE]]''
| [[MTAB]]
| IORE 101 - 126
| [[Bombardier Transportation|Bombardier]]
| 2000&ndash;04
| Electric
| Co'Co'+Co'Co'
| {{convert|360|t|t ST|0|lk=on|order=out}}
| {{convert|314732|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|14483|hp|hp kW|0|lk=on|order=out}}<br/>continuous rating (for a pair)
| The most powerful double-frame locomotive in series production.{{When|date=March 2021}} It is possible to operate individual halves, however it is not usually done.
|
|-
| [[Jawn Henry (turbine)|Jawn Henry]]
| [[Norfolk & Western]]
| 2300
| [[Baldwin Locomotive Works]]
| 1954-58
| Steam turbine electric
| [[AAR wheel arrangement#C.2BC-C.2BC|C+C-C+C]]
| {{convert|404|t|t ST|0|lk=on|order=out}}
| {{convert|175000|lbf|lbf kN|0|lk=on|order=out}}<ref>{{Cite web | url=https://www.american-rails.com/jawn-henry.html#gallery | title=The N&W's Jawn Henry | website=www.american-rails.com | access-date=2018-07-10}}</ref>
| {{convert|4500|hp|hp kW|0|lk=on|order=out}}
| Struck from the N&W roster on January 4, 1958.
|
|-
| ''[[JR Freight Class EF200]]''
| [[JR Freight]]
| {{N/A}}
| [[Hitachi]]
| 1990&ndash;
| Electric
| Bo'Bo'Bo'
| {{convert|100.8|t|t ST|0|lk=on|order=out}}
| {{convert|26600|kgf|lbf kN|0|lk=on|order=out}}
| {{convert|6000|kW|hp kW|0|lk=on|order=out}}
| Most powerful single-frame narrow-gauge locomotive in series production{{When|date=March 2021}}.
|
|-
| ''[[Korail 8500|Korail Class 8500]]''
| [[Korail]]
| 8501-8587
| [[Hyundai Rotem]]
| 2012-2014
| Electric
| Co'Co'
| {{convert|132|t|t ST|0|lk=on|order=out}}
| {{convert|450|kN|lbf kN|0|lk=on|order=out}}
| {{convert|6600|kW|hp kW|0|lk=on|order=out}}
| <ref>{{cite web |title=8500호대 |url=https://www.kric.go.kr/jsp/board/portal/sub02/rcd/railDogam2Detail.jsp?p_id=A030402001&seq=80 |publisher=Railway Industry Information Center, [[Ministry of Land, Infrastructure and Transport (South Korea)]] |access-date=24 August 2024 |language=Korean}}</ref>
|
|-
|''[[China Railways DF8|Leone Rock DF8BJ]]''
|[[Leone Rock Metal Group]]
|LRMG-001 to 010
|[[CRRC Ziyang]]
|2024
|Diesel-electric
|Co'Co'
|
|
|{{convert|4,935|hp|hp kW|0|lk=on|order=out}}
|Most powerful narrow-gauge diesel locomotive in single frame<ref>{{cite web|title=The world's highest-power narrow-gauge AC drive diesel locomotives exported to Sierra Leone are successfully online to operate|url=https://www.crrcgc.cc/zyjcen/2024-05/11/article_DEBA651DF54E40709800DF037FA87754.html}}</ref>
|
|-
|[[Little Joe (electric locomotive)|Little Joe]]
|[[Milwaukee Road]]
|EF-4 and EP-4
|[[GE Transportation|General Electric]]
|1950-80
|Electric
|2-D+D-2
|{{convert|247.5|t|t ST|0|lk=on|order=out}}
|{{convert|75700|lbf|lbf kN|0|lk=on|order=out}}
|{{convert|5,110|hp|hp kW|0|lk=on|order=out}}
| Maximum speed of 68&nbsp;mph, used for freight and passenger.
|
|-
| ''[[Chesapeake and Ohio class M-1|M-1]]''
| [[Chesapeake and Ohio Railway]]
| 500-502
| [[Baldwin Locomotive Works]]
| 1947&ndash;50
| Steam turbine electric
| 2-C1-2-C1-B (4-8-0-4-8-4)
| {{convert|428|t|t ST|0|lk=on|order=out}}
| {{convert|98000|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|6000|hp|hp kW|0|lk=on|order=out}} turbine; {{convert|4960|hp|hp kW|0|lk=on|order=out}} generators
| Nicknamed "Sacred Cows". Sold back to Baldwin in 1950 and scrapped.
|
|-
|Class M-137
|[[Western Pacific Railroad]]
|251-260
|[[Baldwin Locomotive Works]]
|1931, 1938
|Steam
|[[2-8-8-2]]
|{{convert|487|t|t ST|0|lk=on|order=out}}
|{{convert|137174|lbf|lbf kN|0|lk=on|order=out}}
|{{N/A}}
|Largest steam locomotives owned by Western Pacific.<ref>{{Cite web | url=https://www.wplives.org/headlight_article_reprints/headlight_54/Western_Pacific_Steam_Locomotive_Fleet_an_Overview_Headlight_54.pdf | title=Western Pacific's Steam Locomotive Fleet - An Overview | first=Phil | last=Bronte | website=www.wplives.org}}</ref>
|
|-
|[[MPI MPXpress|MPXpress MP54AC]]
|[[GO Transit]]
|667-682
|[[MotivePower|MotivePower Industries]]
|2017-2018
|Diesel-electric
|Bo'Bo'
|127-132 [[Tonne|tonnes]] (140-145 [[short tons]])<ref>{{Cite web | url=https://transittoronto.ca/images/MPI-MP54-spec-sheet.pdf | title=MP 54AC Tier 4 Commuter Locomotive | website=transittoronto.ca}}</ref>
|82,900 [[Pound (force)|pounds-force]] (369 [[Kilonewton|kN]]) peak, 50,700 [[Pound (force)|pounds-force]] continuous (225 [[Kilonewton|kN]])
|5,400 [[horsepower]] (3972 [[Watt|kW]])
|Highest power diesel passenger locomotive in North America
|
|-
|[https://www.american-rails.com/y.html Norfolk & Western Y Class]
|[[Norfolk & Western]]
|{{N/A}}
|[[Roanoke Shops]]
|1940s
|Steam
|[[2-8-8-2]]
|{{convert|449|t|t ST|0|lk=on|order=out}}
|{{convert|166000|lbf|lbf kN|0|lk=on|order=out}}
|{{convert|5600|hp|hp kW|0|lk=on|order=out}}
|[[Norfolk and Western 2156]] is strongest-pulling steam locomotive still in existence{{When|date=March 2021}}.
|
|-
|''[[Pennsylvania Railroad class GG1|PRR GG1]]''
| [[Pennsylvania Railroad]], [[Penn Central]], [[Conrail]], [[Amtrak]] and [[NJ Transit]]
| 4800–4938, 900-929
| [[Altoona Works]], [[General Electric]]
| 1934–43
| Electric
| [[AAR wheel arrangement#2-C+C-2|2-C+C-2]] (4-6-6-4)
| {{convert|216.4|t|t ST|0|lk=on|order=out}}
| {{convert|65,500|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|4629|hp|hp kW|0|lk=on|order=out}}
| Most scrapped; the prototype and 15 production locomotives have been preserved in museums.
|
|-
| ''[[Pennsylvania Railroad class Q2|PRR Q2]]''
| [[Pennsylvania Railroad]]
| 6131, 6175-6199
| [[Altoona Works]]
| 1941&ndash;45
| Steam
| [[4-4-6-4]]
| {{convert|456|t|t ST|0|lk=on|order=out}}
| {{convert|115816|lbf|lbf kN|0|lk=on|order=out}} with booster
| {{convert|7987|hp|hp kW|0|lk=on|order=out}}
| Most powerful steam locomotive ever static tested.
|
|-
| ''[[Pennsylvania Railroad class S1|PRR S1]]''
| [[Pennsylvania Railroad]]
| 6100
| [[Altoona Works]]
| 1939
| Steam
| [[6-4-4-6]]
| {{convert|487|t|t ST|0|lk=on|order=out}}
| {{convert|76403|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|7200|hp|hp kW|0|lk=on|order=out}}
| Fast passenger steam locomotive; the magazine ''Popular Mechanics'' cites 1941 a speed of 133.4&nbsp;mph (214.7&nbsp;km/h)
|
|-
| ''[[Pennsylvania Railroad class S2|PRR S2]]''
| [[Pennsylvania Railroad]]
| 6200
| [[Baldwin Locomotive Works]]
| 1944
| Steam turbine direct-drive
| [[6-8-6]]
| {{convert|470|t|t ST|0|lk=on|order=out}}
| {{convert|70500|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|6900|hp|hp kW|0|lk=on|order=out}}
| Most powerful steam turbine locomotive ever built.
|
|-
| ''[[:de:BLS Re 4/4|Re 4/4]]''
| BLS, Switzerland
| Re 425 161-Re 425 195)
| SLM / BBC
| 1964-83
| Electric
| Bo'Bo'
| {{convert|80|t|t ST|0|lk=on|order=out}}
| {{convert|32000|kgf|lbf kN|0|lk=on|order=out}}
| {{convert|4980|kW|hp kW|0|lk=on|order=out}} 1-hour rating
| <ref>{{cite journal |last1=Grossmann |first1=W. |title=Die Thyristor-Stromrichter-Lokomotive Re 4/4 161 der Berner Alpenbahn-Gesellschaft Bern-Lötschberg-Simplon (BLS) |journal=Schweizerische Bauzeitung |date=1973 |volume=91 |issue=14 |page=331 |url=https://www.e-periodica.ch/digbib/view?rid=sbz-002:1973:91::250#2420 |access-date=21 August 2024 |language=German}}</ref>
In operation {{As of|October 2012|lc=yes}}
|
|-
| ''[[SBB-CFF-FFS Re 460#BLS|Re 465]]''
| [[BLS AG|BLS, Switzerland]]
| Re 465 001-465 0018
| [[Swiss Locomotive & Machine Works|SLM]], [[ABB]]
| 1994-97
| Electric
| Bo'Bo'
| {{convert|84|t|t ST|0|lk=on|order=out}}
| {{convert|71,940|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|9390|hp|hp kW|0|lk=on|order=out}} short term {{convert|8410|hp|hp kW|0|lk=on|order=out}} continuous;
| Similar locomotives with slightly different technical data are in operation with SBB ([[SBB-CFF-FFS Re 460|Re 460]]; 119 pc/NSB ([[NSB El 18|El 18]]; 22 pc)/VR ([[VR Class Sr2|Sr2]]; 46 pc)/[[Kowloon–Canton Railway Corporation|KCRC]] (Hong Kong; 2 pc).
|
|-
| ''[[:de:SBB Re 6/6|Re 6/6]]''
| [[Swiss Federal Railways|SBB, Switzerland]]
| 11601-11689
| [[Swiss Locomotive & Machine Works|SLM]], [[Maschinenfabrik Oerlikon#History|MFO]]/[[Brown, Boveri & Cie|BBC]]/[[Société Anonyme des Ateliers de Sécheron|Sécheron]]
| 1972, 1975–80
| Electric
| Bo'Bo'Bo'
| {{convert|120|t|t ST|0|lk=on|order=out}}
| {{convert|40200|kgf|lbf kN|0|lk=on|order=out}}
| {{convert|10600|PS|hp kW|0|lk=on|order=out}} 1-hour rating
{{convert|9843|PS|hp kW|0|lk=on|order=out}} continuous
| <ref>{{cite journal |last1=Meyer |first1=Karl |title=Die Prototyplokomotiven der Serie Re 6/6 der Schweizerischen Bundesbahnen |journal=Schweizerische Bauzeitung |date=1972 |volume=90 |issue=48 |page=1230 |url=https://www.e-periodica.ch/digbib/view?rid=sbz-002:1972:90::856#6248 |access-date=21 August 2024 |language=German}}</ref>
At the time of construction (1972) one of the world's most powerful locomotives. Currently in operation {{As of|May 2022|lc=yes}} with the revised classification of Re 620.
|
|-
|Shen 12
|[[China Shenhua Energy|Shenhua Mining Group]]
|''HXD1.7''
|CRRC Zhuzhou
|
|Electric
|3×Bo'Bo'
|{{convert|276|t|t ST|0|lk=on|order=out}}
|{{convert|1140|kN|lbf kN|0|lk=on|order=out}} starting
|{{convert|14400|kW|hp kW|0|lk=on|order=out}} continuous rating
|Three-section modification of the [[HXD1]].
|
|-
|Shen 24<ref>{{Cite web|last=|first=|date=2020-08-04|title=28·8 MW freight locomotive unveiled|url=https://www.railwaygazette.com/traction-and-rolling-stock/288-mw-freight-locomotive-unveiled/57096.article|access-date=2023-01-04|url-status=live|url-access=registration|archive-url=https://web.archive.org/web/20200928224201/https://www.railwaygazette.com/traction-and-rolling-stock/288-mw-freight-locomotive-unveiled/57096.article|archive-date=2020-09-28|website=[[Railway Gazette International]]|language=en}}</ref><ref>{{Cite web|date=2020-08-04|title=CRRC Zhuzhou unveils 28.8MW electric freight locomotive|url=https://www.railjournal.com/locomotives/crrc-zhuzhou-unveils-28-8mw-electric-freight-locomotive/|access-date=2020-08-09|website=[[International Railway Journal]]|language=en}}</ref>
|[[China Shenhua Energy|Shenhua Mining Group]]
|
|CRRC Zhuzhou
|2020–present
|Electric
|6×Bo'Bo'
|
|{{convert|2280|kN|lbf kN|0|lk=on|order=out}}
|{{convert|28800|kW|hp kW|0|lk=on|order=out}}
|Six-section modification of [[China Railways HXD1|HXD1]], {{convert|106|m|ft|0|lk=on|abbr=}} long overall.
|
|-
| ''[[SJ Dm3]]''
| [[Swedish State Railways|SJ]]
| {{N/A}}
| [[ASEA]]
| 1953&ndash;71
| Electric
| 1'D+D+D1'
| {{convert|273|t|t ST|0|lk=on|order=out}}
| {{convert|940|kN|lbf kN|0|lk=on|order=out}}
| {{convert|7200|kW|hp kW|0|lk=on|order=out}}
| Highest continuous tractive effort when built, most powerful locomotive using [[Jackshaft (locomotive)|jackshafts]].
|
|-
| ''[[:de:Softronic|Softronic Transmontana]]''
| [[Romanian Railways]] (CFR) and diverse private railways in Romania and Hungary
| 480 (Romania) 610 (Hungary)
| Softronic [[Craiova]]
| 2010–present
| Electric
| Co'Co'
| {{convert|120|t|t ST|0|lk=on|order=out}}
| {{convert|97,800|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|8851|hp|hp kW|0|lk=on|order=out}} 1-hour rating;
{{convert|8046|hp|hp kW|0|lk=on|order=out}} continuous
| Based on the ASEA 060-EA, but with asynchronous traction motors, IGBT and computerized control.
|
|-
| ''[[Stadler Euro Dual]]''
| N/A
| N/A
| [[Stadler Rail]]
| 2012
| Dual power electro-diesel locomotive
| Co'Co'
| {{convert|114|t|t ST|0|lk=on|order=out}} - {{convert|126|t|t ST|0|lk=on|order=out}}
| {{convert|112,500|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|9387.15|hp|hp kW|0|lk=on|order=out}}
|
|
|-
| ''{{interlanguage link|Stadler Euro 9000|de|Stadler Euro 9000}}''
| {{interlanguage link|European Loc Pool|de}}
| 2019 302–
| [[Stadler Rail]]
| 2020–
| Dual power electro-diesel locomotive
| Co'Co'
| {{convert|123|t|t ST|0|lk=on|order=out}}
| {{convert|500|kN|lbf kN|0|lk=on|order=out}}
| {{convert|9000|kW|hp kW|0|lk=on|order=out}} AC mode
| <ref>{{cite magazine |last=Meyer |first=Stefan |year=2023 |orig-date= |title=Abnahme der 2019 310 für Lokomotion |trans-title= |url= |url-access= |url-status= |format= |department=Fahrzeug-Journal |magazine={{interlanguage link|der schienenbus|de}} |language=de |location= |publisher= Arbeitsgemeinschaft Schienenverkehr e.V. |publication-date= |volume= |issue=6/2023 |page= |pages= |at= |no-pp= }}</ref><ref>{{cite web |title=EURO 9000 &VerticalLine; STADLER |url=https://www.alphatrains.eu/downloads/fleet/loco/alpha_data_sheet_loco_euro9000.pdf |publisher=[[Alpha Trains]] |access-date=22 September 2024}}</ref><br/>Most powerful (continuous) single-frame locomotive in Europe.
|
|-
|[[4-12-2|Union Pacific 9000 class]]
|[[Union Pacific]]
|9000-9087
|[[American Locomotive Company]]
|1926-1930
|Steam
|[[4-12-2]]
|{{convert|355|t|t ST|0|lk=on|order=out}}
|{{convert|97,664|lbf|lbf kN|0|lk=on|order=out}}
|{{convert|4750|hp|hp kW|0|lk=on|order=out}}
|{{N/A}}
|
|-
| ''[[Union Pacific GTELs#Experimental coal-burning turbine|Union Pacific Coal GTELs]]''
| [[Union Pacific]]
| 80 (later 8080)
| [[Union Pacific]] Omaha Shops
| 1961
| Diesel-electric + gas turbine-electric
| A1A-A1A+2-D-D-2
| {{convert|661|t|t ST|0|lk=on|order=out}}
| {{N/A}}
| {{convert|7000|hp|hp kW|0|lk=on|order=out}} (2,000&nbsp;hp Diesel + 5,000&nbsp;hp turbine)
| Home-built experimental coal-fired gas turbine. Assembled from ALCO [[ALCO PA|PA-1]] UP #607, [[Great Northern Railway (U.S.)|GN]] [[GN W-1|W1]] #5018, and the tender from [[Union Pacific Challenger|Challenger]] #3990. {{convert|215|ft|m|0|lk=on}} overall length; {{convert|1457280|lbs|kg|0}} total weight. Unsuccessful; set aside in 1964 and scrapped in 1968.
|
|-
| ''Virginian Railway EL-3A''
| [[Virginian Railway]]
| 100-109
| [[ALCO]] + [[Westinghouse Electric Corporation|Westinghouse]]
| 1925-1926
| Electric
| 1-D-1+1-D-1+1-D-1
| {{convert|624|t|t ST|0|lk=on|order=out}}
| {{convert|277500|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|7125|hp|hp kW|0|lk=on|order=out}} (1-hour rating); {{convert|6000|hp|hp kW|0|lk=on|order=out}} continuous
| {{convert|152.25|ft|m|0|lk=on}} overall length.
|
|-
| ''[[VL85|ВЛ85]]''
| [[Russian Railways]]
| 270
| [[Novocherkassk Electric Locomotive Plant]]
| 1983-94
| Electric
| Bo'Bo'Bo'+Bo'Bo'Bo'
| {{convert|300|t|t ST|0|lk=on|order=out}}
| {{convert|209522|lbf|lbf kN|0|lk=on|order=out}}
| {{convert|12550|hp|hp kW|0|lk=on|order=out}} continuous; {{convert|13437|hp|hp kW|0|lk=on|order=out}} short term
| {{N/A}}
|
|-
| ''[[Voith Maxima]]''
| {{N/A}}
| {{N/A}}
| [[Voith]]
| 2006&ndash;14
| Diesel-hydraulic
| Co'Co'
| {{convert|135|t|t ST|0|lk=on|order=out}}
| {{convert|408|kN|lbf kN|0|lk=on|order=out}}
| {{convert|3600|kW|hp kW|0|lk=on|order=out}} engine (Maxima 40CC)
| <ref>{{cite web |title=Dieselhydraulische Lokomotiven. Maxima 30 und 40 CC. |url=http://resource.voith.com/vt/publications/downloads/1429_d_g_2040_d_flyer_maxima_2011-10.pdf |publisher=[[Voith|Voith Turbo GmbH & Co. KG]] |archive-url=https://web.archive.org/web/20140509021315/http://resource.voith.com/vt/publications/downloads/1429_d_g_2040_d_flyer_maxima_2011-10.pdf |archive-date=2014-05-09 |page=4 |language=German |url-status=dead}}</ref>
Voith Maxima 40CC is the most powerful single-engine [[diesel-hydraulic locomotive]] ever built.
|
|-
| ''[[2-8-8-8-4|XA Triplex]]''
| [[Virginian Railway]]
| 700
| [[Baldwin Locomotive Works|Baldwin]]
| 1916
| Steam
| [[2-8-8-8-4]]
| {{convert|532|t|t ST|0|lk=on|order=out}}
| {{convert|166,600|lbf|lbf kN|0|lk=on|order=out}} compound
| {{N/A}}
| Rebuilt into separate locomotives; Maximum speed approx. 10&nbsp;mph.
|
|-
|''[[2-8-8-4|Yellowstone]]''
|[[Northern Pacific Railway|Northern Pacific]], [[Duluth, Missabe & Iron Range Railway]] and [[Baltimore & Ohio]]
|220-237 (DM&IR)
|[[Baldwin Locomotive Works]]
|1928-1945
|Steam
|[[2-8-8-4]]
|{{convert|566|t|t ST|0|lk=on|order=out}}
|{{convert|140,093|lbf|lbf kN|0|lk=on|order=out}}
|{{convert|6250|hp|hp kW|0|lk=on|order=out}}
|Figures are for the DM&IR Yellowstones, the largest and generally the most well-known of their type.
|
|-
|}
==See also==
*[[List of largest passenger vehicles]]
==References==
{{Reflist}}
==External links==
* [https://web.archive.org/web/20120105023425/http://www.steamlocomotive.com/misc/largest.shtml Steamlocomotive.com article regarding the largest steam locomotives] archive at the [[Internet Archive#Wayback Machine|Internet Archive Wayback Machine]]
{{DEFAULTSORT:World's Largest Locomotive}}
[[Category:Locomotives|*largest locomotives]]
[[Category:Transport-related lists of superlatives|Locomotives, Largest]]
[[Category:Railway locomotive-related lists|locomotives]]
[[Category:Largest things by volume]]