This list below provides details of Locomotives in the UK. Information provided are top speed, power, when introduced, how many are in use and who owns them. The number in brackets after each company shows how many are owned by that particular company. Some locomotives come in a special freight version, which usually involves having a lower top speed. Speeds given in italics are for the freight versions of the locomotive. A key to railway companies can be found below. This is not a complete list of classes, this is a list of those engines in service now. For a complete list, click here
The Class 08 is the UK's Slowest Locomotive with a top speed
of 15mph - 24kph
The Class 91 is the UK's Fastest Locomotive with a top speed of
140mph - 225kph
See also: Diesel Multiple Unit list, Electrical Multiple Unit list, Ordered Locomotives in the UK
| Class | Introduced | # in use | Company | Maximum Speed | Power | Type | Comments | |
| 08 | 1953 | 265 | AR(3) CA (1) CT (2) Eurostar (1) SR (2) GNER (5) MML (8) VWC (9) EWS (224) Freightliner (10) |
15mph | 24kph | 194 kW | Diesel Electric | Standard BR/English Electric 350hp diesel shunters. Pictures |
| 09 | 1959 | 36 | CSC(3) EWS (33) |
27mph | 43kph | 201 kW | Diesel Electric | Shunters, updated version of class 08 with higher top speed Pictures |
| 20 | 1957 | 40 | DRS (17) EWS (13) Racal-BRT (4) Hunslet-Barcley (6) |
60mph | 96kph | 574 kW | Diesel Electric | Used for freight services only.Pictures |
| 31 | 1957 | 138 | EWS (138) | 90mph 60mph |
144kph 96kph |
872 kW | Diesel Electric | The Slower version used for freight.Pictures |
| 33 | 1960 | 30 | EWS (30) | 60mph | 96kph | 906 kW | Diesel Electric | Freight locomotive with electrical train heating Pictures |
| 37 | 1960 | 289 | Eurostar (6) DRS (6) EWS (277) |
80mph | 128kph | 935 kW | Diesel Electric | One of the early diesels that replaced steam engines for express trains Pictures |
| 43 | 1976 | 196 | GNER (22) GW (82) MML (31) VWC (7) VXC (54) |
125mph | 200kph | 1320 kW | Diesel Electic | Engine for the Inter-city 125 high speed train push/pull set. Pictures |
| 47 | 1963 | 331 | GW (4) VXC (24) C&T (7) EWS (251) Freightliner (45) |
95mph | 152kph | 1550 kW | Diesel Electric | One of the more famous engines in the UK Pictures |
| 56 | 1976 | 126 | EWS (126) | 80mph | 128kph | 1790 kW | Diesel Electric | Brush 3250hp freight diesels based on class 47 mechanical design Pictures |
| 58 | 1983 | 50 | EWS (50) | 80mph | 128kph | 1780 kW | Diesel Electric | Freight diesel locomotives with double ended hood design Pictures |
| 59 | 1985 | 15 | Rendip Rail (9) National Power PLC (6) |
60mph | 96kph | Diesel Electric | Built by General Motors(Canada), EMD SD40-2s(+elem. SD60) Pictures | |
| 60 | 1989 | 100 | EWS (100) | 60mph | 96kph | 1800 kW | Brush freight diesel locomotives Pictures | |
| 73 | 1965 | 44 | Eurostar (2) GX(14) ME (4) SWT(1) EWS (23) |
90mph 60mph |
144kph 96kph |
1060 kW | Diesel And Electric @ 750V DC 3rd Rail |
3rd Rail Electric engines with a small diesel for running on non-electrified lines. This engines pulls the Gatwick express. Pictures |
| 86 | 1965 | 95 | AR(14) VWC (18) VXC (18) EWS (25) Freightliner (20) |
100mph 75mph |
160kph 120kph |
3010 kW | Electric @ 25kV AC 50hz | General purpose mainline electrics Pictures |
| 87 | 1973 | 36 | VWC (35) EWS (1) |
110mph | 176kph | 3730 kW | Electric @ 25kV 50hz | General purpose mainline electric, used often for west coast inter-city services. Pictures |
| 89 | 1987 | 1 | GNER (1) | 125mph | 200kph | 2390 kW | Electric @ 25kV 50hz | Former test locomotive "Avocet", now used on London-Leeds/Bradford Pictures |
| 90 | 1987 | 50 | VWC (15) EWS (25) Freightlinter (10) |
110mph 75mph |
176kph 120kph |
3730 kW | Electric @ 25kV 50hz | Development of class 87 in (slightly) more streamlined body Pictures |
| 91 | 1988 | 31 | GNER (31) | 140mph | 225kph | 4540 kW | Electric @ 25kV 50hz | Currently the fastest engine operating in the uk, used on the inter-city 225 trains. Pictures |
| 92 | 1994 | 37 | Eurostar (7) EWS (30) |
88mph | 140kph | 5000 kW | Electric @ 750V DC & 25kV AC 50 Hz | Used for channel tunnel freight services Pictures |
Passenger Train Operating Companies |
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| Abbreviation |
Company Name | Company Website |
| AR | Anglia Railways Train Services Ltd. | |
| CA | Cardiff Railway Co. Ltd. | |
| CSC | Connex SouthCentral Ltd. | |
| CT | Central Trains Ltd. | |
| Eurostar | Eurostar (UK) Ltd. | |
| GNER | Great North Eastern Railway Ltd. | |
| GW | Great Western Trains Co. Ltd. | |
| GX | Gatwick Express Ltd. | |
| ME | Merseyside Electrics Ltd. | |
| MML | Midland Mainline Ltd. | |
| SR | ScotRail Railways Ltd. | |
| SWT | South West Trains Ltd. | |
| VWC | Virgin West Coast Ltd. | |
| VXC | Virgin CrossCountry Ltd | |
Freight Operating Companies |
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| C&T | Carriage & Traction Co. Ltd. | |
| DRS | Direct Rail Services Ltd. | |
| EWS | English, Welsh & Scottish Railways Ltd. | |
| Freightliner | Freightliner (1995) Ltd. | |