UP 9900
| The first confirmed EMD Tier 3.5 pre-production test unit. 926302-19 |
SD59MX
| 20087146-001 | 1 | 162874 |
UP 9904
| SD59M-2 Built 4/2010 |
SD59MX
| 20087146-005 | 1 | 151741 |
UP 9908
| ex UP 6341 |
SD59MX
| 20087146-009 | 1 | 151739 |
UP 9910
| SD59MX-2 906100-1 |
SD59MX
| 20107425-009 | 1 | 169272 |
UP 9912
| SD59M-2 ex SD60M UP 2431, ex UP 6276 |
SD59MX
| 20107425-008 | 1 | 171636 |
UP 9914
| SD59M-2 ex UP 2450, 6295 |
SD59MX
| 906100-27 | 1 | 170168 |
UP 9916
| SD59M-2 Built 12/2011 |
SD59MX
| 20107425-002 | 2 | 165152 |
UP 9921
| SD59M- ex-SD60M 2503 |
SD59MX
| 20107425- | 1 | 174145 |
UP 9923
| SD59M-2 old build was Oct 1992 as 926302-36 |
SD59MX
| 20107425-006 | 2 | 169512 |
UP 9926
| Rebuilt at Progress Rail, Mayfield, KY |
SD59MX
| 906100-22 | 1 | 202544 |