2,000 Horsepower -- Built in 1975 by EMD - LaGrange, Illinois
Existing Roster
| 6650 | 6651 | 6652 | 6653 | 6654 |
| 6655 | 6656 | 6657 | 6658 | 6659 |
Union Pacific's SD38-2 Renumbering Plan
| CNW No. | 1st UP No. | New UPY No. | CNW No. | 1st UP No. | New UPY No. | |
| 6650 | 2806 | 806 | 6655 | 2811 | 811 | |
| 6651 | 2807 | 807 | 6656 | 812 | ||
| 6652 | 2808 | 808 | 6657 | 813 | ||
| 6653 | 2809 | 809 | 6658 | 2814 | 814 | |
| 6654 | 2810 | 810 | 6659 | 815 |