ALCO RSC-1
The ALCO RSC-1 was a diesel-electric locomotive of the road switcher type rated at, that rode on three-axle trucks, having an A1A-A1A wheel arrangement.
Used in much the same manner as its four-axle counterpart, the ALCO RS-1, though the axle load was distributed for operation on light rail such as are found on branch lines.
Original buyers
| Railroad | Quantity | Road numbers | Notes |
| São Paulo Railway | 500–503 | to Estrada de Ferro Santos a Jundiaí |