SSW 4030-4049
These units were built as SSW units and renumbered as part of the SP's 1965 systemwide locomotive renumberign plan. They retained their Cotton Belt identities.
1965 NUMBERS:
SSW 4030-4039:
| 1965 road number | Orig. road number | notes |
| SSW 4030 | SSW 800 | |
| SSW 4031 | SSW 801 | |
| SSW 4032 | SSW 802 | |
| SSW 4033 | SSW 803 | |
| SSW 4034 | SSW 804 | |
| SSW 4035 | SSW 805 | |
| SSW 4036 | SSW 806 | |
| SSW 4037 | SSW 807 | |
| SSW 4038 | SSW 808 | |
| SSW 4039 | SSW 809 |
SSW 4040-4049:
| 1965 road number | Orig. road number | notes |
| SSW 4040 | SSW 810 | |
| SSW 4041 | SSW 811 | |
| SSW 4042 | SSW 812 | |
| SSW 4043 | SSW 813 | |
| SSW 4044 | SSW 814 | |
| SSW 4045 | SSW 815 | |
| SSW 4046 | SSW 816 | |
| SSW 4047 | SSW 817 | |
| SSW 4048 | SSW 818 | |
| SSW 4049 | SSW 819 |