SP 3441-3458
These units were built as SP units and renumbered as part of the SP's 1965 systemwide locomotive renumberign plan.
1965 NUMBERS:
SP 3441-3458:
| 1965 road number | Orig. road number | notes |
| SP 3441 | SP 5604 | |
| SP 3442 | SP 5605 | |
| SP 3443 | SP 5606 | |
| SP 3444 | SP 5607 | |
| SP 3445 | SP 5608 | |
| SP 3446 | SP 5609 | |
| SP 3447 | SP 5610 | |
| SP 3448 | SP 5611 | |
| SP 3449 | SP 5612 | |
| SP 3450 | SP 5613 | |
| SP 3451 | SP 5614 | |
| SP 3452 | SP 5615 | |
| SP 3453 | SP 5616 | |
| SP 3454 | SP 5617 | |
| SP 3455 | SP 5618 | |
| SP 3456 | SP 5619 | |
| SP 3457 | SP 5620 | |
| SP 3458 | SP 5621 |