SP RSD12 page
This page is dedicated to SP's fleet of 21 ALCO C-630 locomotives.
Original orders:
The SP purchased RSD12's remanufactured from SP RSD5's as follows:
SP:
| Orig. road numbers | ALCO const. no. | build date |
| SP 7000-7005 | 83640-83645 | 2/1961 |
| SP 7006-7020 | 83836-83850 | 3/1961 |