Thanks to the database provided by Mario Mariotti, here's a quick overview about the Argentinan ALCo-powered locomotives, most of them introduced by the former Ferrocarriles Argentinos.
Note: additions and corrections welcome!
| model | series number | builder | built | builder's number | gauge | original motor |
| GE Shovel-noses | 5701-5770 | General Electric | 1949 | 1000 mm | Cooper Bessemer 12 cyl. 900HP |
Quite a number of them received an ALCo 6-251D (rated at 1000HP) motor
after 1986:
5701,-02,-07,-10,-25,-27,-35,-36,-40,-41,-42,-44,-47,-51,-60,-62,-65,-67,-68,-69.
5725, 5747, 5765 and 5767 received double-cabs and look thus close to
those of AFE (Uruguay).
Retired: none (although some of them are waiting orders to enter shops).
| model | series number | builder | built | builder's number | gauge | original motor |
| GE Shovel-noses | 6701-6705 | General Electric | 1953 | 1000 mm | ALCo 12-244E, 1200HP |
Three of them received a 6-251D (rated at 1000HP) in 1986: 6701,-03,-05, all of them currently awaiting orders to repairs.
ALCo FPD-7MLW-built BAP 8417 at Haedo yard, April 1998.Pedro Pablo Lacoste photo |
![]() |
| model | series number | builder | built | builder's number | gauge | original motor |
| ALCo FPD-7 | 8401-8425* | MLW | 1957 | 1676 mm | ALCo 12-251B |
8402,-06,-10,-14,-17 are active at BAP. 8403,-20,-24 in repairs. * originally 5551-5575.
ALCo RSD-16The 8482 is a unit that belonged to the line San Martin. It possesses the second outline of painting of the F.A. The picture was taken in the Kilometer 1 Deposit of Locomotives of the of the line San Martin in Retiro.Marcelo López photo. |
![]() |
| model | series number | builder | built | builder's number | gauge | original motor |
| ALCo RSD-16 | 8226-8280 8441-8515 |
ALCo ALCo |
1957/59 | 1676 mm | ALCo 12-251B |
8241 received a FIAT A230 motor but returned to ALCo power. Some units received 12-251C during the 80s. Only 18 locos were retired. Some of them received new numbers when transferred to TMS (B801-B831).
| model | series number | builder | built | builder's number | gauge | original motor |
| GE U13C | 6001-6045 | General Electric | 1962 | 1676 mm | Cooper Bessemer 8 cyl |
6022 recieved in 1993 a (12?)-251 ALCo motor, still in service today. To put the big ALCo in, the roof of the loco was moved up, making it look like a camel.
| model | series number | builder | built | builder's number | gauge | original motor |
| RSD35 | 6411-6480 | ALCo | 1963 | 1676 mm | ALCo 6-251D |
Only seven retired.
| model | series number | builder | built | builder's number | gauge | original motor |
| RSD35 | 6756-6795 | MLW | 1963 | 1000 mm | ALCo 6-251D |
Only five retired, and 17 for spare-parts.
GAIA 1300FEMESA 6205, a unit built by GAIA, with a local train to Retiro station on August 17th, 1992.Carlos Sisto photo |
![]() |
| model | series number | builder | built | builder's number | gauge | original motor |
| GAIA 1300* | 6201-6350 | GAIA | 1962/69 | 1676 mm | FIAT 8 cyl. * |
Argentinian locos. 6205,-17,-39,-55,-56,-63,-81,-96,-99,-302
(?),-28,-32,-42,-46 recieved ALCo 12-251B in 89/90.
Renumbered in the new companies:
TMS B601-604
B601- renumbered from 6205
B602 - renumbered from 6255
B603 - renumbered from 6296
B604 - renumbered from 6328
TBA D601-605 and C601-605, in service most of them.
C601- renumbered from 6299
C602 - renumbered from 6302
C603 - renumbered from 6332
C604 - renumbered from 6342
C605 - renumbered from 6346
D601 - renumbered from 6217
D602 - renumbered from 6239
D603 - renumbered from 6256
D604 - renumbered from 6263
D605 - renumbered from 6281
The following units went to the Buenos Aires al Pacifico (re-engined
with Alco 251):
5272, 5287. Units 5286 and 5289 also went to the BAP, but are still using
the original FIAT engines.
| model | series number | builder | built | builder's number | gauge | original motor |
| RSD39 | C651-656 D657-667 |
ALCo; Euskalduna (E*) | 1965/67 | 1676 mm | Alco 6-251D |
They were originally RENFE 313 series acquired by TBA.
* Spain
RENFE to TBA re# scheme follows
| model | series number | builder | built | builder's number | gauge | original motor |
| DL500S | 2101-2108 2109-2134 2135-2160 2161-2180 |
ALCo CAF (E) SECN (E) Euskalduna (E) |
1965 1965-67 1965-67 1969-71 |
1676 mm | ALCo 12-251C |
They were originally RENFE 321 series acquired by BAP and retained their old number. No consecutive number blocks at BAP, see below!
On May 28th 1994 the first 5 ex-321 (old class 2100, to which the here given numbers refer - because the old numberboards were never changed...) came to Argentina. These were: 2106, 2109, 2125, 2155 and 2177.
The 15 units of the second batch (old RENFE nos.): 2107, 2110, 2119, 2120, 2122, 2123, 2126, 2134, 2141, 2147, 2161, 2165, 2167, 2171 and 2178. The units were overhauled bei ATEINSA, Madrid, and repainted to BAP specifications in Spain during the summer of 1995, almost a year before their shipment to Argentina. They arrived in Buenos Aires onboard the freighter "Mascot" on June 7th, 1996 and were immediately taken to BAP's central workshop in Mendoza before entering service.
Back to Argentina front page
Last update 15.03.00