UP 9900
| The first confirmed EMD Tier 3.5 pre-production test unit. 926302-19 |
SD59MX
| 20087146-001 | 1 | 162874 |
UP 9910
| SD59MX-2 906100-1 |
SD59MX
| 20107425-009 | 1 | 169272 |
UP 9915
| SD59M-2 Built 12/2011 |
SD59MX
| 20107425-001 | 1 | 165151 |
UP 9918
| SD59M-2 OLD 926302-6 |
SD59MX
| 20107425-004 | 3 | 164225 |
UP 9921
| SD59M- ex-SD60M 2503 |
SD59MX
| 20107425- | 1 | 174145 |
UP 9924
| SD59M-2 old 10-92 926302-? sticker damaged 5/22/2014 unreadable at Redding |
SD59MX
| 20107425-015 | 1 | 181267 |
UP 9926
| Rebuilt at Progress Rail, Mayfield, KY |
SD59MX
| 906100-22 | 1 | 202544 |