SP 3663-3707
These units were built as Pacific Lines units SP 5800-5844 and renumbered as part of the SP's 1965 systemwide locomotive renumberign plan.
SP 3663-3707:
| 1965 road number | Orig. road number | notes |
| SP 3663 | SP 5800 | |
| SP 3664 | SP 5801 | |
| SP 3665 | SP 5802 | |
| SP 3666 | SP 5803 | |
| SP 3667 | SP 5804 | |
| SP 3668 | SP 5805 | |
| SP 3669 | SP 5806 | |
| SP 3670 | SP 5807 | |
| SP 3671 | SP 5808 | |
| SP 3672 | SP 5809 | |
| SP 3673 | SP 5810 | |
| SP 3674 | SP 5811 | |
| SP 3675 | SP 5812 | |
| SP 3676 | SP 5813 | |
| SP 3677 | SP 5814 | |
| SP 3678 | SP 5815 | |
| SP 3679 | SP 5816 | |
| SP 3680 | SP 5817 | |
| SP 3681 | SP 5818 | |
| SP 3682 | SP 5819 | |
| SP 3683 | SP 5820 | |
| SP 3684 | SP 5821 | |
| SP 3685 | SP 5820 | |
| SP 3686 | SP 5823 | |
| SP 3687 | SP 5824 | |
| SP 3688 | SP 5825 | |
| SP 3689 | SP 5826 | |
| SP 3690 | SP 5827 | |
| SP 3691 | SP 5828 | |
| SP 3692 | SP 5829 | |
| SP 3693 | SP 5830 | |
| SP 3694 | SP 5831 | |
| SP 3695 | SP 5832 | |
| SP 3696 | SP 5833 | |
| SP 3697 | SP 5834 | |
| SP 3698 | SP 5835 | |
| SP 3699 | SP 5836 | |
| SP 3700 | SP 5837 | |
| SP 3701 | SP 5838 | |
| SP 3702 | SP 5839 | |
| SP 3703 | SP 5840 | |
| SP 3704 | SP 5841 | |
| SP 3705 | SP 5842 | |
| SP 3706 | SP 5843 | |
| SP 3707 | SP 5844 |