List of diesel locomotives of India
This article lists the diesel locomotives that have operated or are operating on Indian Railways.
Classification[]
Locomotives were classified by track gauge, motive power, function and power (or model number) in a four- or five-letter code. The first letter denotes the track gauge. The second letter denotes motive power (diesel or electric), and the third letter denotes use (goods, passenger, mixed or shunting). The fourth letter denotes a locomotive's chronological model number.
In 2002, a new classification system was adopted. For newer diesel locomotives, the fourth letter denotes their horsepower range. Not all diesel locomotives were reclassified, and the fourth letter continues to denotes their model number.
A locomotive may have a fifth letter, generally denoting a technical variant, subclass or subtype: a variation in the basic model or series, or a different motor or manufacturer. Under the new system, the fifth letter further refines horsepower in 100-hp increments: A for 100 hp, B for 200 hp, C for 300 hp and so on. A WDP-3A is a 3,100 hp (2,300 kW) locomotive, and a WDM-3F is 3,600 hp (2,700 kW).
The system does not apply to steam locomotives, which are no longer used on main lines. They retain their original class names, such as M- or WP-class.
Syntax[]
- First letter (gauge):
- Second letter (motive power):
- D – Diesel
- C – DC electric (DC overhead line)
- A – AC electric (AC overhead line)
- CA – DC and AC (AC or DC overhead line); CA is considered one letter
- B – Battery (rare)
- Third letter (job type):
In WDM 3A, W denotes broad gauge; D denotes diesel power; M denotes mixed use (goods and passenger service), and 3A denotes 3,100 hp (2,300 kW) (3,000 + 100). In WAP 5, W is broad gauge; A is AC electric; P is passenger service, and 5 indicates that the locomotive is the fifth model used.
Broad-gauge locomotives[]
Broad-gauge diesel classification codes are:
- WDM – Wide diesel mixed
- WDP – Wide diesel passenger
- WDG – Wide diesel goods
- WDS – Wide diesel shunter
Mixed class (WDM series)[]
Name | Manufacturer | Wheel | Quantity
Built |
Built year(s) | Power | Current Status | Preserved units | Comments | Picture |
---|---|---|---|---|---|---|---|---|---|
WDM-1 | ALCO | Co-Co | 100 | 1957-1959 | 1950 HP | Retired | 1 | First mainline diesel locomotive | ![]() |
WDM-2 | ALCO/BLW | Co-Co | 1440 | 1962–1998 | 2600 HP | In service | 9 | A few still in service | ![]() |
WDM-2G | BLW | Co-Co | 2 | 2013 | 2400 HP | In Service | ![]() | ||
WDM-3 | Henschel | Bo-Bo | 8 | 1962-1970 | 2500 HP | Retired | None | ![]() | |
WDM-3A | BLW | Co-Co | 1402 | 1994–2015 | 3100 HP | In service | 1 Earmarked | ![]() | |
WDM-3B | BLW | Co-Co | 8, all rebuilt back to WDM-3D | 2005-2006 | 3100 HP | In service | All rebuilt back to WDM-3D | ![]() | |
WDM-3C | BLW | Co-Co | 10 | 2002 | 3300 HP | In service | None | All rebuilt back to WDM-3A | |
WDM-3D | BLW | Co-Co | 500 | 2003-2016 | 3300 HP | In service | ![]() | ||
WDM-3E | BLW | Co-Co | 8 | 2008 | 3500 HP | In service | |||
WDM-3F | BLW | Co-Co | 3 | 2008 | 3600 HP | In service | |||
WDM-4 | GM | Co-Co | 72 | 1961-1962 | 2600 HP | Retired | 2 | ![]() | |
WDM-6 | BLW | Bo-Bo | 2 | 1981-1982 | 1350 HP | Retired | 2 | Both units earmarked for preservation | ![]() |
WDM-7 | BLW | Co-Co | 15 | 1987–1989 | 2000 HP | In service | 1 Earmarked | Currently used for shunting uses only | ![]() |
Passenger class (WDP series)[]
Name | Manufacturer | Wheel
Arr |
Quantity
Built |
Built year(s) | Power | Current Status | Preserved units | Comments | Picture |
---|---|---|---|---|---|---|---|---|---|
WDP-1 | BLW | Bo-Bo | 69 | 1995–1999 | 2300 HP | In service | ![]() | ||
WDP-3A | BLW | Co-Co | 69 | 1998–2001 | 3100 HP | In service | ![]() | ||
WDP-4 | EMD/BLW | Bo1-1Bo | 100 | 2001–2010 | 4000 HP | In service | ![]() | ||
WDP-4B | BLW | Co-Co | 86 | 2010–2014 | 4500 HP | In service | ![]() | ||
WDP-4D | BLW | Co-Co | 525 | 2010–2018 | 4500 HP | In service | ![]() |
Goods class (WDG series)[]
Name | Manufacturer | Wheel
Arr |
Quantity
Built |
Built year(s) | Power | Current Status | Preserved units | Comments | Picture |
---|---|---|---|---|---|---|---|---|---|
WDG-3A | BLW | Co-Co | 1164 | 1994–2015 | 3100 HP | In service | ![]() | ||
WDG-3B | BLW | Co-Co | 4 | 2004 | 3200 HP | In service | |||
WDG-3C | BLW | Co-Co | 1 | 2001 | 3300 HP | In service | |||
WDG-3D | BLW | Co-Co | 1 | 2001 | 3400 HP | In service | |||
WDG-4 | EMD/BLW | Co-Co | 1188 | 1997–2017 | 4000 HP | In service | |||
WDG-4G | GE | Co-Co | 291 | 2017–present | 4500 HP | In service | ![]() | ||
WDG-4D | EMD | Co-Co | 583 | 2013–2017 | 4500 HP | In service | ![]() | ||
WDG-5 | EMD | Co-Co | 7 | 2012-2018 | 5500 HP | In service | ![]() | ||
WDG-6G | GE | Co-Co | 43 | 2019–present | 6000 HP | In service | ![]() |
Shunter class (WDS series)[]
Name | Manufacturer | Wheel
Arr |
Quantity
Built |
Built year(s) | Power | Current Status | Preserved units | Comments | Picture |
---|---|---|---|---|---|---|---|---|---|
WDS-1 | GE | Bo-Bo | 15 | 1944-1945 | 386 HP | Retired | 1 | India's first diesel locomotive | ![]() |
WDS-2 | Kraus
Maffei |
C | 30 | 1954-1955 | 440 HP | Retired | ![]() | ||
WDS-3 | Maschi-
nenbau Kiel |
C | 7 | 1961 | 618 HP | Retired | ![]() | ||
WDS-4 | CLW | C | 27 | 1967-1969 | 600 HP | Few are still in service | 4 | A few still in service | ![]() |
WDS-4A | CLW | C | 5 | 1968 | 660 HP | Retired | ![]() | ||
WDS-4B | CLW | C | 450 | 1969 | 700 HP | Retired | ![]() | ||
WDS-4C | CLW | C | 7 | 1976-78 | 700 HP | Retired | ![]() | ||
WDS-4D | CLW | C | 120 | 1984-90 | 700 HP | Retired | ![]() | ||
WDS-5 | ALCO/BLW | Co-Co | 21 | 1967 | 1065 HP | In service | A few still in service | ![]() | |
WDS-6 | BLW | Co-Co | 270 | 1975– | 1400 | In service | 2 Earmarked | ![]() | |
WDS-6AD | BLW | Co-Co | 270 | 1975– | 1400 | In service | 2 Earmarked | ![]() | |
WDS-8 | CLW | Bo-Bo | 5 | 1979-1982 | 800 HP | Retired | ![]() |
Meter-gauge locomotives[]
Metre-gauge diesel classification code is:
- YDM - Metre gauge diesel mixed
Mixed class (YDM series)[]
Name | Manufacturer | Wheel
Arr |
Quantity
Built |
Built year(s) | Power | Current Status | Preserved units | Comments | Picture |
---|---|---|---|---|---|---|---|---|---|
YDM-1 | NBL | B-B | 20 | 1954-56 | 700 | Retired | ![]() | ||
YDM-2 | CLW | B-B | 41 | 1986-90 | 700 | Retired | ![]() | ||
YDM-3 | GM | 1'Bo'Bo'1 | 30 | 1961-62 | 1390 | Retired | ![]() | ||
YDM-4 | ALCO/BLW | Co-Co | 695 | 1961–1993 | 1400 | In service | ![]() | ||
YDM-5 | GM | Co-Co | 25 | 1963-1964 | 1390 | Retired | ![]() |
Narrow-gauge locomotives[]
Narrow-gauge diesel classification codes are:
- ZDM - Narrow gauge 2 ft 6 in diesel mixed
- NDM - Narrow gauge 2 ft diesel mixed
Mixed class (ZDM series)[]
Name | Manufacturer | Wheel
Arr |
Quantity
Built |
Built year(s) | Power | Current Status | Preserved units | Comments | Picture |
---|---|---|---|---|---|---|---|---|---|
ZDM-1 | Arn. Jung | B+B | 5 | 1955 | 290 | Retired | |||
ZDM-2 | Maschi-nenbau Kiel | B-B | 25 | 1964-65 | 700 | Retired | ![]() | ||
ZDM-3 | CLW | B-B | 40 | 1970-82 | 700 | In service | ![]() | ||
ZDM-4/4A | CLW | 1-B-B-1 | 10/39 | 1975-77/1982-90 | 700 | In service | |||
ZDM-5 | CLW | B-B | 41 | 1989+ | 450 | In service | ![]() |
Mixed class (NDM series)[]
Name | Manufacturer | Wheel
Arr |
Quantity
Built |
Built year(s) | Power | Current Status | Preserved units | Comments | Picture |
---|---|---|---|---|---|---|---|---|---|
NDM-1 | Arn. Jung | B+B | 7 | 1955 | 290 | In service | |||
NDM-5 | CLW | B-B | 11 | 1987-89 | 450 | In service | ![]() | ||
NDM-6 | (SAN) Engg. and Loco Co. | B | 6 | 1997 | 335 | In service | ![]() |
See also[]
References[]
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Wikimedia Commons has media related to Diesel locomotives of India. |
Notes[]
Bibliography[]
- Hughes, Hugh (1996). Indian Locomotives: Part 4 – 1941–1990. Harrow, Middlesex: The Continental Railway Circle. ISBN 0-9521655-1-1.
- Diesel locomotives of India
- Railway locomotive-related lists
- 5 ft 6 in gauge locomotives
- Indian railway-related lists