# List of British Rail diesel multiple unit classes

This is a list of British Rail diesel multiple-unit train classes.
For a historical overview of diesel multiple unit train development in Great Britain, see British railcars and diesel multiple units.

## Pre-nationalisation designs

* GWR railcars
* LMS railcars

## First Generation
### Early BR DMUs (79xxx series)

| Manufacturer | Engines (per motor car) | Transmission | Type | Built | Quantity (sets) | Withdrawn | Scrapped |
| BR Derby 'Lightweight' | 2 × Leyland 125 bhp (93 kW) or 2 × AEC 150 bhp (112 kW) | hydraulic (2 car) or mechanical (single car) | low density | 1954-1959 | 217 vehicles | 1967-1969 1977-1994 (departmental use) | 215 |
| Metro-Cammell 'Lightweight' | 2 × AEC 150 bhp (112 kW) | mechanical | low density | 1955-1956 | 36 sets | 1967-1969 1981 (departmental use) | All |
| AC Cars Railbuses | 1 × AEC 150 bhp (112 kW) | mechanical | railbus | 1958 | 5 | 1968 | 3 (1 in preservation) |
| Bristol-ECW Railbuses | 1 × Gardner 112 bhp (84 kW) | mechanical | railbus | 1958 | 2 | 1966 | All |
| Park Royal Railbuses | 1 × AEC 150 bhp (112 kW) | mechanical | railbus | 1958 | 5 | 1966-1968 | All |
| Waggon and Maschinenbau Railbuses | 1 × Büssing 150 bhp (112 kW) | mechanical | railbus | 1958 | 5 | 1966-1967 | 1 |
| Wickham Railbuses | 1 × Meadows 105 bhp (78 kW) | mechanical | railbus | 1958 | 6 | 1966 1997 (departmental use) | 5 |

### TOPS classes

| Class | Manufacturer | Engines (per motor car) | Transmission | Type | Built | Quantity (sets) | Withdrawn | Notes | Scrapped |
| Class 100 | Gloucester RC&W | 2 × AEC 150 bhp (112 kW) | mechanical | low density | 1957–1958 | 40 sets (80 cars) | 1969–1988 | | About 79 (3 in preservation) |
| Class 101 | Metro-Cammell | 2 × AEC 150 bhp (112 kW) | mechanical | low density | 1956–1960 | 527 sets | 1957 (1) 1978–2003 2009–2012 (departmental use) | | About 502 (9 in preservation) |
| Class 102 | Metro-Cammell | 2 × Leyland 150 bhp (112 kW) | mechanical | low density | 1956–1960 | 106 sets | 1957 (1) 1978–2003 2009–2012 (departmental use) | | About 502 (9 in preservation) |
| Class 103 | Park Royal | 2 × AEC 150 bhp (112 kW) | mechanical | low density | 1957 | 20 sets (40 cars) | 1972–1983 1985–1990 (departmental use) | | About 19 (3 in preservation) |
| Class 104 | Birmingham RC&W | 2 × Leyland 150 bhp (112 kW) | mechanical | low density | 1957–1959 | 302 cars | 1980–1995 | | About 63 |
| Class 105 | Cravens | 2 × AEC 150 bhp (112 kW) | mechanical | low density | 1956–1959 | 302 cars | 1976–1988 1989–1990 (departmental use) | | About 300 |
| Class 106 | Cravens | 2 × Leyland 150 bhp (112 kW) | mechanical | low density | 1956–1959 | 302 cars | 1976–1988 1989–1990 (departmental use) | | About 300 |
| Class 107 | BR Derby 'Heavyweight' | 2 × AEC 150 bhp (112 kW) | mechanical | low density | 1960 | 26 sets (78 cars) | 1973 (1) 1983–1992 1995 (departmental use) | | About 19 sets (66 cars) |
| Class 108 | BR Derby 'Heavyweight' | 2 × Leyland 150 bhp (112 kW) | mechanical | low density | 1958–1961 | 333 cars | 1964 (1) 1974 (1) 1990–1993 | | About 138 |
| Class 109 | D Wickham & Co | 2 × Leyland 150 bhp (112 kW) | mechanical | low density | 1957–1958 | 5 sets | 1971 | | 4 |
| Class 110 | Birmingham RC&W 'Calder Valley' | 2 × Rolls-Royce C6NFLH 180 bhp (134 kW) | mechanical | low density | 1961–1962 | 30 sets | 1963 (3) 1971–1972 (3) 1983 (3) 1986–1991 | | About 28 sets (85 vehicles) |
| Class 111 | Metro-Cammell | 2 × Rolls-Royce C6NFLH 180 bhp (134 kW) | mechanical | low density | 1957–1960 | 23 train sets | 1989 | Last unpowered car went in 2000 | About 23 (50 vehicles) |
| Class 112 | Cravens | 1 × Rolls-Royce C8NFLH 238 bhp (177 kW) | mechanical | low density | 1959–1960 | 25 sets (50 cars) | 1968–1969 | | All |
| Class 113 | Cravens | 1 × Rolls-Royce C8NFLH 238 bhp (177 kW) | hydraulic | low density | 1959–1960 | 25 sets (50 cars) | 1968–1969 | | All |
| Class 114 | BR Derby 'Heavyweight' | 2 × Leyland 230 bhp (172 kW) | mechanical | low density | 1956–1957 (entered service 1960) | 50 sets (100 cars) | 1962 (1) 1965 (1) 1967 (prototype) 1970–1971 (6) 2004 (departmental use) | | About 48 sets (95 vehicles) |
| Class 115 | BR Derby 'Suburban' | 2 × Albion 230 bhp (172 kW) | mechanical | high density | 1960 | 41 four-car sets | 1991–1994 | | About 30 sets (149 vehicles; 3 in preservation) |
| Class 116 | BR Derby 'Suburban' | 2 × Leyland 150 bhp (112 kW) | mechanical | high density | 1957–1961 | 310 cars | 1961 (1) 1983 (32) 1987–1995 | 2 converted to Class 130 | About (304 vehicles; 5 in preservation) |
| Class 117 | Pressed Steel 'Suburban' | 2 × Leyland 150 bhp (112 kW) | mechanical | high density | 1959–1961 | 123 cars | 1993–2000 | | 30 |
| Class 118 | Birmingham RC&W 'Suburban' | 2 × Leyland 150 bhp (112 kW) | mechanical | high density | 1960 | 15 sets (45 cars) | 1994 | | About 14 sets (44 cars) |
| Class 119 | Gloucester RC&W 'Cross-Country' | 2 × Leyland 150 bhp (112 kW) | mechanical | cross country | 1958 | 84 cars | 1992–1995 | | About 28 sets (81 cars) |
| Class 120 | BR Swindon 'Cross-Country' | 2 × AEC 150 bhp (112 kW) | mechanical | cross country | 1958 | 194 cars | 1989 | | About 64 sets (193 cars) |
| Class 121 | Pressed Steel 'Bubble Car' | 2 × AEC 150 bhp (112 kW) | mechanical | high density | 1960–1961 | 16 (DMBS) 10 (DTS) | 1978 (2) 1991–2017 | Last first-generation DMU in service, 55022 is still in departmental use. | 12 (2 in preservation) |
| Class 122 | Gloucester RC&W 'Bubble Car' | 2 × AEC 150 bhp (112 kW) | mechanical | high density | 1959 | 20 (DMBS) 9 (DTS) | 1979–1995 1998–2011 (departmental use) | | 8 |
| Class 123 | BR Swindon 'Intercity' | 2 × Albion 230 bhp (172 kW) | mechanical | intercity | 1963 | 40 (Ten 4-car units) | 1984 | Buffets withdrawn in 1970 and a DMBS and DMSK withdrawn in 1977 and 1979 respectively. | All |
| Class 124 | BR Swindon 'Trans-Pennine' | 2 × Albion 230 bhp (172 kW) | mechanical | intercity | 1960 | Eight 6-car sets, plus 3 spare cars | 1972 (3) 1975 1979–1984 | | All |
| Class 125 | BR Derby 'Lea Valley' | 2 × Rolls-Royce C8NFLH 238 bhp (177 kW) | hydraulic | high density | 1958 | 20 three-car sets | 1971 (1) 1976–1977 1986–1988 (departmental use) | | All |
| Class 126 | BR Swindon 'Intercity' | 2 × AEC 150 bhp (112 kW) | mechanical | intercity | 1959 | 22 | 1970 (1) 1973 (3) 1979–1982 | | About 21 (62 cars; 3 in preservation) |
| Class 127 | BR Derby 'Bed-Pan' | 2 × Rolls-Royce C8NFLH 238 bhp (177 kW) | hydraulic | high density | 1959 | 30 sets (120 vehicles) | 1964 (1) 1966 (1) 1968 (1) 1972 (1) 1975–1977 (8) 1982–1993 | 22 rebuilt in 1985 | About 27 vehicles (112 vehicles; 3 in preservation) |
| Class 128 | Gloucester RC&W 'Parcels' | 2 × Albion 230 bhp (172 kW) | mechanical | parcels | 1959–1960 | 10 | 1971 (1) 1979–1980 (2) 1982 (2) 1990 | | All |
| Class 129 | Cravens 'Parcels' | 2 × Leyland 150 bhp (112 kW) | mechanical | parcels | 1955 (entered service 1958) | 3 | 1972–1973 1986 (departmental use) | | All |
| Class 130 | Parcels conversion from Class 116 | 2 × Leyland 150 bhp (112 kW) | mechanical | parcels | 1957–1961 (converted 1969) | 2 | 1972 | Parcels conversion from Class 116 | All |
| Class 131 | Parcels conversion from Class 122 | 2 × AEC 150 bhp (112 kW) | mechanical | parcels | 1959 (converted 1966/69/71) | 3 | 1976 | Parcels conversion from Class 122 | All |

## Second generation
### Lightweight railcars

| Class | Manufacturer | Date Built | Number Built | Withdrawn | Image | Scrapped |
| Class 139 | Parry People Movers | 2008 | 2 × single cars | still in use | | None |

### Pacers

| Class | Manufacturer | Date Built | Number Built | Withdrawn | Scrapped |
| Leyland Prototypes | BREL-Leyland | 1978-84 | 4 × single cars | 1978-1997 | None |
| Class 140 | BREL-Leyland | 1980 | 1 × 2-car set | 1981 | None |
| Class 141 | BREL-Leyland | 1984 | 20 × 2-car sets | Britain 1997, Iran 2005 | 4 (2 in preservation) |
| Class 142 | BREL-Leyland | 1985-87 | 96 × 2-car sets | 2019–2021 | 52 |
| Class 143 | Barclay-Alexander | 1985-86 | 25 × 2-car sets | 2020 (GWR) 2021 (TFW) | 5 |
| Class 144 | BREL-Alexander | 1986-87 | 13 × 2-car and 10 × 3-car sets | 2020 | 1 |

### Sprinters

| Class | Manufacturer | Date Built | Number Built | Withdrawn | Scrapped |
| Class 150 Sprinter | BREL | 1984–7 | 135 × 2-car and 2 × 3-car sets | Still in use | 3 (equiv.) |
| Class 151 | Metro-Cammell | 1985 | 2 × 3-car units | 1989 | Both |
| Class 152 | N/A | Never built | Proposed single car conversion of Class 156 | Never built | Never built |
| Class 153 Super Sprinter | BREL-Leyland | 1991–2 | 70 × single cars (Converted from Class 155) | Still in use | 12 |
| Class 154 | BREL | 1985 | 1 × 3 car unit converted from Class 150 | Converted back to Class 150 | None |
| Class 155 Super Sprinter | BREL-Leyland | 1987–8 | 42 × 2-car sets 7 × 2-car sets still in original form | Still in use | None |
| Class 156 Super Sprinter | Metro-Cammell | 1987–9 | 114 × 2-car sets | Still in use | None |
| Class 157 Strathclyde Sprinter | N/A | Never built | Proposed Strathclyde PTE Sprinter | Never built | Never built |
| Class 158 Express Sprinter | BREL | 1989–92 | 165 × 2-car and 17 × 3-car sets | Still in use | 1 |
| Class 159 South Western Turbo | BREL | 1992–3 | 22 × 3-car sets | Still in use | 2 vehicles |

### Turbos
#### Networker

| Class | Manufacturer | Date Built | Number Built | Withdrawn | Image | Scrapped |
| Class 165 Networker Turbo | BREL/ABB York | 1990–2 | 49 × 2-car and 26 × 3-car sets | Still in use | | 1 |
| Class 166 Networker Turbo Express | BREL/ABB York | 1992–3 | 21 × 3-car sets | Still in use | | None |

#### Turbostar

| Class | Manufacturer | Date Built | Number Built | Withdrawn | Scrapped |
| Class 168 Clubman | Adtranz/Bombardier, Derby | 1998–2004 | 9 × 3-car and 10 × 4-car sets | Still in use | None |
| Class 170 Turbostar | Adtranz/Bombardier, Derby | 1998–2005 | 44 × 2-car and 89 × 3-car sets | Still in use | None |
| Class 171 Turbostar | Bombardier, Derby | 2003–04 | 9 × 2-car and 6 × 4-car sets | Still in use | None |
| Class 172 Turbostar | Bombardier, Derby | 2010–11 | 24 × 2-car and 15 × 3-car | Still in use | None |

### Coradias

| Class | Manufacturer | Date Built | Number Built | Withdrawn | Image | Scrapped |
| Class 175 Coradia | Alstom, Washwood Heath | 1999–2001 | 11 × 2-car and 16 × 3-car sets | 2023 | | None |
| Class 180 Adelante | Alstom, Washwood Heath | 2000–01 | 13 x 5-car sets and 1 x 4-car set (180 110) | Still in use | | None |

### Desiro

| Class | Manufacturer | Date Built | Number Built | Withdrawn | Image | Scrapped |
| Class 185 Desiro | Siemens | 2005–06 | 51 × 3-car sets | Still in use | | None |

### Civity

| Class | Manufacturer | Date Built | Number Built | Withdrawn | Scrapped |
| Class 195 Civity | CAF | 2017–20 | 25 × 2-car sets 33 × 3-car sets | still in use | None |
| Class 196 Civity | CAF | 2019– | 12 x 2-car sets 14 x 4-car sets | still in use | None |
| Class 197 Civity | CAF | 2021– | 51 x 2-car sets 26 x 3-car sets | still in use | None |

## Diesel-electric multiple units (DEMUs)
### Southern Region DEMUs

| Class | SR code | Built | Quantity (sets) | Withdrawn | Scrapped |
| Class 201 | 6S | 1957-58 | 7 × 6-car sets | 1986 | About 5 |
| Class 202 | 6L | 1957-58 | 9 × 6-car sets | 1986 | About 8 (46 cars) |
| Class 203 | 6B | 1958 | 7 × 6-car sets | 1990 | 5 |
| Class 204 | 2H/3T | 1957 | 4 × 3-car sets (formed using Class 205 and 206 cars) | 1987 | About 3 (19 vehicles) |
| Class 205 | 2H/3H | 1957-62 | 4 × 2-car and 29 × 3-car sets | 1992–2004 | About 21 |
| Class 206 | 3R | 1964 | 6 × 3-car sets (formed using Class 201 and 416 cars) | 1979 | All |
| Class 207 | 3D | 1962 | 19 × 3-car sets | 1990–2004 | About 16 |

### Second Generation

| Class | Manufacturer | Date Built | Number Built | Withdrawn | Notes | Scrapped |
| Class 210 | BREL, Derby | 1982 | 1 × 3-car and 1 × 4-car set | 1987 | mostly scrapped, with 1 carriage preserved and 2 carriages converted to Class 455 | 4 carriages |
| Class 230 D-Train | Metro-Cammell (original builders) Vivarail (conversion) | 2015 (prototype) | 1 × 3-car set (prototype) 3 × 2-car 5 × 3-car | still in use | Converted from former London Underground D78 Stock | None |
| Class 231 FLIRT | Stadler | 2021-22 | 11 × 4-car sets | still in use | | None |
| Class 769 Flex | BREL, York Brush Traction (conversion) | 2017 | 35 × 4-car sets | still in use | Converted from Class 319 EMUs | None |

### Voyager-style express DEMUs

| Class | Manufacturer | Date Built | Number Built | Withdrawn | Scrapped |
| Class 220 Voyager | Bombardier, Bruges, Belgium | 2000-01 | 34 × 4-car sets | still in use | None |
| Class 221 Super Voyager | Bombardier, Bruges, Belgium | 2001-02 | 4 × 4-car and 40 × 5-car sets | still in use | None |
| Class 222 Meridian/Pioneer | Bombardier, Bruges, Belgium | 2003–05 | 4 × 4-car, 7 × 9-car and 17 × 5-car sets | still in use | None |

### High-speed trains

| Class | Manufacturer | Information | Date Built | Number Built | Withdrawn | Scrapped |
| Class 251 | Metro-Cammell | Blue Pullman | 1959-1960 | 2 × 6-car 3 × 8-car | 1973 | All |
| Class 252 | BREL | Prototype HST | 1972 | 1 × 10-car plus 2 spare coaches | 1982 | 2 vehicles |
| Class 253 | BREL | HST | 1975–1982 | 58 × 9-car | still in use | 22 |
| Class 254 | BREL | HST | 1975–1982 | 36 × 10-car | still in use | 22 |
| Class 255 | BREL | HST Challenger | 2002 (planned refurbishment) | 14 (planned) | Never built | Never built |
| Class 800 | Hitachi Kudamatsu & Newton Aycliffe | Electro-diesel units designed with both pantograph for OHLE use and internal diesel powerplant for non-electrified lines | 2014-2019 | 46 × 5-car 13 × 9-car | still in use | None |
| Class 802 | Hitachi Kudamatsu & Pistoia | Electro-diesel units designed with both pantograph for OHLE use and internal diesel powerplant for non-electrified lines | 2017-2020 | 27 x 5-car 7 x 9-car | still in use | None |
| Class 805 | Hitachi Newton Aycliffe | Electro-diesel units designed with both pantograph for OHLE use and internal diesel powerplant for non-electrified lines | 2021-now | 13 x 5-car | still in use | None |
| Class 810 | Hitachi Newton Aycliffe | Electro-diesel units designed with both pantograph for OHLE use and internal diesel powerplant for non-electrified lines | 2021-now | 33 × 5-car | Not In service Yet | None |