ALCO Diesel Locomotives

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) 	
100-ton 	1925–1928 	7 	B-B 	Ingersoll-Rand 10 × 12 (×2) 	300 hp (220 kW) × 2	
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) 	
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) 	
ALCO 600 	— 	1931 	1 	B-B 	6-531 	600 hp (450 kW) 	
HH600 	— 	1931–1939 	78 	B-B 	6-531 	600 hp (450 kW) 	
HH900 	— 	1937–1939 	21 	B-B 	6-531T 	900 hp (670 kW) 	
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) 	
S-2 	E-1540 	1940–1950 	1462 	B-B 	6-539T 	1,000 hp (750 kW) 	
S-3 	E-1530A 	1950–1953 	137 	B-B 	6-539 	660 hp (490 kW) 	
S-4 	E-1540A 	1949–1957 	651 	B-B 	6-539T 	1,000 hp (750 kW) 	
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) 	
S-6 	DL-430 (1st) 	1955–1960 	126 	B-B 	6-251B 	900 hp (670 kW) 	
SB-8/SSB-9	DL-431/DL-461	1956 	2 sets	B-B+B-B 	6-251B × 2 	900 hp (670 kW) × 2	
T-6 	DL-440 	1958–1969 	57 	B-B 	6-251B 	1,000 hp (750 kW) 	
==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) 	100px
— 	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	
— 	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) 	
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) 	
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) 	
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)	100px
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)	
RS-3 	E-1662, E-1662A, E-1662B	1950–1956 	1272	B-B 	12-244 	1,600 hp (1.19 MW)	100px
RS-11	DL-701 	1956–1961 	355 	B-B 	12-251 	1,800 hp (1.34 MW)	
RS-27	DL-640 	1959–1962 	27 	B-B 	16-251 	2,400 hp (1.79 MW)	
RS-32	DL-721 	1961–1962 	35 	B-B 	12-251 	2,000 hp (1.49 MW)	
RS-36	DL-701XAP 	1962–1963 	40 	B-B 	12-251 	1,800 hp (1.34 MW)	
==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 	E-1646 	1944–1945 	100	C-C 	6-539T 	1,000 hp (0.75 MW)	
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)	
RSD-5 	E-1664, E-1664A, E-1664B	1952–1955 	204	C-C 	12-244 	1,600 hp (1.19 MW)	
RSD-7 	DL-600 	1954 	2 	C-C 	16-244 	2,250 hp (1.68 MW)	100px
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)	
RSD-15	DL-600B 	1956–1960 	75 	C-C 	16-251B 	2,400 hp (1.79 MW)	
==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)	
C420 	DL-721A 	1963–1968 	131	B-B 	12-251C 	2,000 hp (1.49 MW)	100px
C424 	DL-640A 	1963–1967 	98 	B-B 	16-251B 	2,400 hp (1.79 MW)	
C425 	DL-640B 	1964–1966 	91 	B-B 	16-251C 	2,500 hp (1.86 MW)	
C430 	DL-430 (2nd) 	1967–1968 	16 	B-B 	16-251E 	3,000 hp (2.24 MW)	
C628 	DL-628 	1963–1968 	186	C-C 	16-251C 	2,750 hp (2.05 MW)	
C630 	DL-630 	1965–1968 	133	C-C 	16-251E 	3,000 hp (2.24 MW)	
C636 	DL-636 	1967–1968 	63 	C-C 	16-251E 	3,600 hp (2.68 MW)	
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)	
==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)	100px
==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 	 	 	100px
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) 	
RSD-8 	DL531A 	1958–1959 	103 	C-C 	6-251D 	1,060 hp (790 kW) 	100px
 	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) 	
 	DL533 	 	 	- 	 	 	
 	DL534 	 	 	- 	 	 	
RSD-39 	DL535-S/DL535-T	1965–1967 	736 	C-C 	ALCO 251-D 	1,200 hp (890 kW) 	100px
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) 	100px
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) 	
 	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) 	100px
 	DL539 	 	 	- 	 	 	
RSD-16 	DL540 	1957–1959 	130 	Co—Co 	ALCO 251B 	1,800 hp (1,340 kW) 	100px
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)	
 	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) 	
 	DL560D 	1974 	15 	- 	 	 	
==Montreal Locomotive Works Export 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)	
 	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)	
OSE class A-501	MX636 	1974–1980 	10 	C-C 	MLW 16-251E	3,600 hp (2,680 kW)	
 	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==
*ALCOWorld
Category:Lists
Category:ALCO diesel locomotives
Category:Diesel locomotives
Category:ALCO Century Series
Category:ALCO locomotives