SP 3653-3662
These units were built as T&NO units and renumbered as part of the SP's 1965 systemwide locomotive renumberign plan.
ORIGINAL NUMBERS:
SP 3653-3662:
| 1965 road number | Orig. road number | notes |
| SP 3653 | T&NO 449 | |
| SP 3654 | T&NO 450 | |
| SP 3655 | T&NO 451 | |
| SP 3656 | T&NO 452 | |
| SP 3657 | T&NO 453 | |
| SP 3658 | T&NO 454 | |
| SP 3659 | T&NO 455 | |
| SP 3660 | T&NO 456 | |
| SP 3661 | T&NO 457 | |
| SP 3662 | T&NO 458 |