SP DH643 page
This page is dedicated to SP's fleet of 3 ALCO DH643 diesel-hydraulic locomotives, the only three examples of the model ever built.
Original orders:
The SP purchased DH643's new as follows:
SP:
| Orig. road numbers | ALCO const. no. | build date |
| SP 9018-9020 | 3374-01 thru 3374-03 | 9/1964 |