SP 2931-2936
These units were built as freight units and renumbered as part of the SP's 1965 systemwide locomotive renumberign plan. These were the SP's only six low front hood RS11 units.
1965 NUMBERS:
SP 2931-2936:
| 1965 road number | Orig. road number | |
| SP 2931 | SP 5866 | |
| SP 2932 | SP 5867 | |
| SP 2933 | SP 5868 | |
| SP 2934 | SP 5869 | |
| SP 2935 | SP 5870 | |
| SP 2936 | SP 5871 |