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American Locomotive Company (ALCO) produced a wide range of diesel-electric locomotives until it ceased manufacture in 1969.

Boxcab locomotives[]

Model Build date Total

produced

Wheel arrangement Prime mover Power output Image
60-ton 1924–1928 26 B-B Ingersoll-Rand 10 in × 12 in (254 mm × 305 mm) 300 hp (220 kW) Boxcab ALCO
100-ton 1925–1928 7 B-B Ingersoll-Rand 10 × 12 (×2) 300 hp (220 kW) × 2 First Alco diesel boxcab in 1957
New York Central 1525 1928 1 B-B Ingersoll-Rand 10 in × 12 in (254 mm × 305 mm)/batteries/3rd rail 300 hp (220 kW) File:NYC 1525.jpg
66-ton 1931 1 B-B McIntosh & Seymour 9½ x 10½ 300 hp (220 kW)

Switchers[]

Model Specification Build date Total

produced

Wheel arrangement Prime mover Power output Image
ALCO 300 1931–1938 11 B-B M&S 6-330 300 hp (220 kW) 300
ALCO 600 1931 1 B-B 6-531 600 hp (450 kW) File:Alco 600.jpg
HH600 1931–1939 78 B-B 6-531 600 hp (450 kW) Northern Pacific 125
HH900 1937–1939 21 B-B 6-531T 900 hp (670 kW) Heart of Dixie RR Museum 2
HH660 1939–40 43 B-B 6-538 660 hp (490 kW)
HH1000 1939–1940 34 B-B 6-538T 1,000 hp (750 kW)
S-1 E-1530 1940–1950 543 B-B 6-539 660 hp (490 kW) NYC 9339
S-2 E-1540 1940–1950 1462 B-B 6-539T 1,000 hp (750 kW) National-railroad-museum-38-of-47.jpg
S-3 E-1530A 1950–1953 137 B-B 6-539 660 hp (490 kW) 24236447421 8708ae0a45 o
S-4 E-1540A 1949–1957 651 B-B 6-539T 1,000 hp (750 kW) File:GU 1001 S4.jpg
S-5 DL420 1951 1 B-B 6-251 800 hp (600 kW)
S-5 DL-421 1954 7 B-B 6-251A 800 hp (600 kW) CTR-BM-863-Boston
S-6 DL-430 (1st) 1955–1960 126 B-B 6-251B 900 hp (670 kW) Nrm62-120021
SB-8/SSB-9 DL-431/DL-461 1956 2 sets B-B+B-B 6-251B × 2 900 hp (670 kW) × 2 Alco sb8
T-6 DL-440 1958–1969 57 B-B 6-251B 1,000 hp (750 kW) Nw41c

Cab units[]

Model Specification Build date Total

produced

Wheel arrangement Prime mover Power output Image
Rebel power cars 1935, 1937 3 2-B 6-531 600 hp (0.45 MW) File:The Rebel streamlined train.JPG
DL-103b 1939 1 A1A-A1A 6-538T × 2 1,000 hp (0.75 MW) × 2
DL-105 1940 3 A1A-A1A 6-539T × 2 1,000 hp (0.75 MW) × 2
DL-107 1940–1941 8 A1A-A1A 6-539T × 2 1,000 hp (0.75 MW) × 2
DL-108 1941 3 A1A-A1A 6-539T × 2 1,000 hp (0.75 MW) × 2
DL-109 1941–1945 62 A1A-A1A 6-539T × 2 1,000 hp (0.75 MW) × 2 Old Maude in 1958
DL-110 1942 1 A1A-A1A 6-539T × 2 1,000 hp (0.75 MW) × 2
DL-202 1945 2 B-B 12-241 1,500 hp (1.12 MW)
DL-203 1945 1 B-B 12-241 1,500 hp (1.12 MW)
FA-1 DL-204, DL206, DL-208, DL-208A, DL-208B 1946–1950 396 B-B 12-244A, B 1,500 hp (1.12 MW)
FA-1 DL-208C 1950 21 B-B 12-244C 1,600 hp (1.19 MW)
FB-1 DL205, DL-209, DL-209A, DL-209B 1946–1950 213 B-B 12-244A, B 1,500 hp (1.12 MW)
FB-1 DL-209C 1950 16 B-B 12-244C 1,600 hp (1.19 MW)
FA-2 DL-212, DL-212A 1950–1956 308 B-B 12-244D, G 1,600 hp (1.19 MW) MetroRail 600
FPA-2 DL-212, DL-212A 1950–1951 54 B-B 12-244D 1,600 hp (1.19 MW)
FB-2 DL-213, DL-213A 1950–1956 181 B-B 12-244D, G 1,600 hp (1.19 MW)
FPB-2 DL-213, DL-213A 1950–1956 25 B-B 12-244D 1,600 hp (1.19 MW)
PA-1 DL-304, DL-304A, DL-304B 1946–1949 169 A1A-A1A 16-244 2,000 hp (1.49 MW) Freedomtrainatevent
PB-1 DL-305, DL-305A, DL-305B 1946–1949 39 A1A-A1A 16-244 2,000 hp (1.49 MW)
PA-2 DL-304C, DL-304D 1950–1953 81 A1A-A1A 16-244 2,250 hp (1.68 MW) GE C22-7i
PB-2 DL-305, DL-305D 1950–1953 8 A1A-A1A 16-244 2,250 hp (1.68 MW)

Four-axle road switchers[]

Model Specification Build date Total

produced

Wheel arrangement Prime mover Power output Image
RS-1 E-1641A 1941–1960 469 B-B 6-539T 1,000 hp (0.75 MW) 901093472362554236426562986380709
RS-2 E-1661, E-1661A, E-1661B 1946–1950 338 B-B 12-244 1,500 hp (1.12 MW)
RS-2 E-1661C 1950 30 B-B 12-244 1,600 hp (1.19 MW) SantaFe2098
RS-3 E-1662, E-1662A, E-1662B 1950–1956 1272 B-B 12-244 1,600 hp (1.19 MW) Amtrak106
RS-11 DL-701 1956–1961 355 B-B 12-251 1,800 hp (1.34 MW) TPW 400 20050716 Illinois Railway Museum
RS-27 DL-640 1959–1962 27 B-B 16-251 2,400 hp (1.79 MW) Frameless
RS-32 DL-721 1961–1962 35 B-B 12-251 2,000 hp (1.49 MW) 39704
RS-36 DL-701XAP 1962–1963 40 B-B 12-251 1,800 hp (1.34 MW) D&U D&H RS36 5017

Six-axle road switchers[]

Model Specification Build date Total

produced

Wheel arrangement Prime mover Power output Image
RSC-1 1946 4 A1A-A1A 6-539T 1,000 hp (0.75 MW)
RSD-1 E-1641 1946 6 C-C 6-539T 1,000 hp (0.75 MW)
RSD-1 E-1645 1942-1943 44 C-C 6-539T 1,000 hp (0.75 MW) RSD-1
RSD-1 E-1646 1944–1945 100 C-C 6-539T 1,000 hp (0.75 MW) Diesel locomotive DA20-09 (5)
RSC-2 E-1661, E-1661A, E-1661B 1946–1950 86 A1A-A1A 12-244 1,500 hp (1.12 MW)
RSC-2 E-1661C 1950 5 A1A-A1A 12-244 1,600 hp (1.19 MW)
RSC-3 E-1662, E-1662A, E-1662B 1950–1955 99 A1A-A1A 12-244 1,600 hp (1.19 MW)
RSD-4 E-1663, E-1663A, E-1663B 1951–1952 36 C-C 12-244 1,600 hp (1.19 MW) File:Kennecott Copper Company Locomotive 201 - 1.jpg
RSD-5 E-1664, E-1664A, E-1664B 1952–1955 204 C-C 12-244 1,600 hp (1.19 MW) File:CNW1689.jpg
RSD-7 DL-600 1954 2 C-C 16-244 2,250 hp (1.68 MW) File:ALCO RSD-7 1953.JPG
RSD-7 DL-600A 1955–1956 27 C-C 16-244 2,400 hp (1.79 MW)
RSD-12 DL-702 1956–1963 171 C-C 12-251B 1,800 hp (1.34 MW) LSI1852
RSD-15 DL-600B 1956–1960 75 C-C 16-251B 2,400 hp (1.79 MW) GBW 2407 at IRM

Century series[]

ALCO announced its "Century Series" of diesel locomotives in 1963 as a leap forward in power and reliability, an attempt to compete more aggressively with GM-EMD and GE in the marketplace.

Model Specification Build date Total

produced

Wheel arrangement Prime mover Power output Image
C415 DL-415 1966–1968 26 B-B 8-251F 1,500 hp (1.12 MW) CRIP 415 (Alco C415) location unknown, probably Chicago, June 1972 (22405483831)
C420 DL-721A 1963–1968 131 B-B 12-251C 2,000 hp (1.49 MW) Century 420
C424 DL-640A 1963–1967 98 B-B 16-251B 2,400 hp (1.79 MW) Alco c424 4230
C425 DL-640B 1964–1966 91 B-B 16-251C 2,500 hp (1.86 MW) EL 2452 (C425) at Hammond, IN on September 17, 1967 with a big wave (26983277033)
C430 DL-430 (2nd) 1967–1968 16 B-B 16-251E 3,000 hp (2.24 MW) 800px-GBW 315
C628 DL-628 1963–1968 186 C-C 16-251C 2,750 hp (2.05 MW) Museo de los Ferrocarriles de Yucatán, Merida 2017 30
C630 DL-630 1965–1968 133 C-C 16-251E 3,000 hp (2.24 MW) Century 630
C636 DL-636 1967–1968 63 C-C 16-251E 3,600 hp (2.68 MW) Rprx78rpnj
C855 DL-855 1964 2 B-B+B-B Dual 16-251 5,500 hp (4.10 MW)
C855B DL-856 1964 1 B-B+B-B Dual 16-251 5,500 hp (4.10 MW)

Diesel-hydraulic locomotives[]

Model Specification Build date Total

produced

Wheelarrangement Prime mover Power output Image
DH643 DH-400 1964 3 C-C Dual 12-251C 4,300 hp (3.21 MW) Southern Pacific -9152

Military locomotives[]

Model Specification Build date Total

produced

Wheel arrangement Prime mover Power output Image
MRS-1 or RSX-4 E-1670 1953–1954 83 C-C 12-244D 1,600 hp (1.19 MW) 2104 1

Locomotives export and not exported[]

Model Specification Build date Total

produced

Wheel arrangement Main engine Power output Image
FCA-3 DL212 1951-1953 23 A1A-A1A 12-244D 1,600 hp (1.19 MW)
FD-3 DL500 1953 3 C-C 12-244D 1,600 hp (1.19 MW)
FD-3 DL500A 1955 16 C-C 12-244D 1,600 hp (1.19 MW)
FPD-5 DL500A 1955–1956 12 C-C 12-244 1,600 hp (1.19 MW)
Renfe Class 316 DL500A 1957 25 C-C File:316-017 en Vitoria 1.JPG
FD-6 DL500B 1958–1968 141 C-C 12-251

12-251B

1,600 hp (1.19 MW)

1,800 hp (1.34 MW)

DL500B1 -
SEK class A-301 DL500C C-C 12-251B 1,800 hp (1,340 kW)
FD-7 DL500CI 1957-1958 99 C-C 12-251B 1,800 hp (1,340 kW)
DL500CP 1957-1959 59 -
FD-9 DL500D C-C 12-251b 1,800 hp (1,340 kW)
FP-9 DL500G 1965–1973 131 C-C 12-251B 1,800 hp (1,340 kW)
FPD 9 DL500S 1964-'65-´66 23 (En Argentina traidas de España) En España ¿? -Co-Co ALCO 251-C 2180HP
DL503S -
DL510 -
DL515 -
DL515I -
DL521 -
DL522G -
DL530 -
RSD-8 (NSW 48) DL531 1959–1970 212 C-C 6-251D 1,060 hp (790 kW) DL531
RSD-8 DL531A 1958–1959 103 C-C 6-251D 1,060 hp (790 kW) File:Trem Intra Metro01.JPG
DL531B -
DL531G -
RS-8 DL532 1966–1974 74 B-B 6-251D 1,035 hp (770 kW)
SEK class A-201 DL532B 1961–1962 10 B-B 6-251D 1,035 hp (0.77 MW) File:20070611-AIR-A204-0002.jpg
DL533 -
DL534 -
RSD-39 DL535-S/DL535-T 1965–1967 736 C-C ALCO 251-D 1,200 hp (890 kW) File:Alco en via 3º.JPG
RSD-35 DL535 1963 70 locomotoras de Trocha ancha (1676mm) -Co-Co ALCO 251 D 1425HP
RSD-35 DL535 1963 40 locomotoras de Trocha metrica (1000mm) -Co-Co ALCO 251 D 1425HP
Indian Railways YDM-4 RSD-30 DL535A 1961–1969 100 (#6020-#6049 and #6105-#6129) C-C 6-251D 1,300 hp (0.97 MW) File:YDM4-6669 Jaipur Junction, 2008 (3).JPG
ENAFER RSD-35 DL535B 1963, 1969, 1974 26 C-C 1,200 hp (0.89 MW)
DL535C -
DL535E DL535E 1969

completed by MLW

10 C-C 6-251D 1,200 hp (0.89 MW) White Pass Diesel Locomotive
DL535M 1963 115 -
DL535S A1A-A1A
DL535T -
RSD-36 DL536 1978 20 C-C 6-251D 1,200 hp (890 kW)
Tunisian Railways 040-DK DL536B -
RSD-37 DL537 1965 12 C-C 6-251D 1,200 hp (890 kW)
SEK class A-9101 DL537 1965 C-C 6-251D 993 kilowatts (1,332 hp) File:20070420-Korinthos-9106.JPG
DL539 -
RSD-16 DL540 1957–1959 130 Co—Co ALCO 251B 1,800 hp (1,340 kW) File:Alco RSD-16 NCA Baradero.JPG
RSD-16 DL541 1960–1968 77 C-C 12-251B 18,300 hp (13,650 kW)
DL542 -
SEK class A-321 DL543 1961–1970 117 C-C 12-251C 1,470 kilowatts (1,971 hp) File:20071104-air-a326-0018.jpg
DL543A -
DL543SPAP -
DL544 -
DL550DL550K 1964 1 -
DL551 -
DL551B -
DL-560 DL560DL560A 1963–1964 12 C-C 12-251B 2,600 hp (1,940 kW)
DL560B 1966 3 -
Indian Railways WDM-2/ALCO RSD-29 DL560C 1962-1997 2962, 18040 – 18079 (1962), 18112 – 18232 (1962 – 1963), 18245 – 18298 (1964 – 1965), 18337 – 18361 (1965) C-C 16-251B 2,600 hp (1,940 kW) ALCO DL560C
DL560D 1974 15 -

Montreal Locomotive Works Export locomotives[]

Main article: List_of_MLW_diesel_locomotives
Model Specification Build date Total

produced

Wheel arrangement Prime mover Power output Image
MX615 1972–1979 74 C-C-1 MLW 8-251A 1,200 hp (890 kW)
MX620 1973–1980 145 C-C MLW 12-251C 2,000 hp (1,490 kW) File:EMAQ MX620 6156 FCA.jpg
MX624 1975–1983 69 C-C MLW 12-251E 2,400 hp (1,790 kW)
MX626 1972–1982 32 C-C MLW 12-251E 2,400 hp (1,790 kW)
OSE class A-451 MX627 1972–1978 33 C-C MLW 12-251C 2,750 hp (2,050 kW) File:20070504-air-a453.jpg
OSE class A-501 MX636 1974–1980 10 C-C MLW 16-251E 3,600 hp (2,680 kW) File:20071228-air-a504.jpg
MXS620 1973–1982 100 C-C MLW 12-251E 2,000 hp (1,490 kW) Double End Cab Units
MXS624 1973–1983 33 C-C MLW 16-251E 2,400 hp (1,790 kW) Double End Cab Units
MXS627 1978–1980 10 C-C MLW 16-251C 2,750 hp (2,050 kW) Double End Cab Units
MXS630 1978–1982 33 C-C MLW 16-251E 3,000 hp (2,240 kW) Double End Cab Units

External links[]

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