SP 3708-3727
These units were built as Pacific Lines units SP 5872-5891 and renumbered as part of the SP's 1965 systemwide locomotive renumberign plan. These units were delivered with factory low noses and were the last GP9's delivered to the SP.
SP 3663-3707:
| 1965 road number | Orig. road number | notes |
| SP 3708 | SP 5872 | |
| SP 3709 | SP 5873 | |
| SP 3710 | SP 5874 | |
| SP 3711 | SP 5875 | |
| SP 3712 | SP 5876 | |
| SP 3713 | SP 5877 | |
| SP 3714 | SP 5878 | |
| SP 3715 | SP 5879 | |
| SP 3716 | SP 5880 | |
| SP 3717 | SP 5881 | |
| SP 3718 | SP 5882 | |
| SP 3719 | SP 5883 | |
| SP 3720 | SP 5884 | |
| SP 3721 | SP 5885 | |
| SP 3722 | SP 5886 | |
| SP 3723 | SP 5887 | |
| SP 3724 | SP 5888 | |
| SP 3725 | SP 5889 | |
| SP 3726 | SP 5890 | |
| SP 3727 | SP 5891 |