Six-axle locomotives
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General Electric
C40-8W
AC4400CW
AC44C4M
Dash 9-44CW
ES44DC
ES44AC
ES44C4
ET44C4
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Electro-Motive Division
SD9-3
SD32ECO
SD40-2
SD40-2B
SD60M
SD70MAC
SD70ACe
SD75M/SD75I
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Other Builders
(ATSF) Yard Slug
(RP) HH20B
(RP) GG20B
(RP) RP14B
(NRE) 3GS21B
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Four-axle locomotives
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Electro-Motive Division
GP28-2
GP38-2
GP39E
GP39M
GP39-2
GP39-3
GP40M/E/X
GP50
GP60
GP60M
GP60B
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General Electric
B40-8
B40-8W
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Other Builders
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(PR) PR30C
(VMV) TEBC6
(NRE) 3GS21C
BNSF Railway (BNSF)
50-60 TEBC6
61-70 Yard Slug
100-158 GP60M
159-199 GP60
200-299 SD75M/I
300-302 SD40-2B
325-347 GP60B
500-559 B40-8W
563-597 B40-8
599-619 AC44C4M
620-699 C44-9W
700-799 C44-9W
867-939 C40-8W
960-1123 C44-9W
1205 HH20B
1210 GG20B
1211 RP14B
1220-1294 3GC21B
1300-1316 3GS21C
1320-1323 PR30C
1350-1352 SD32ECO
1401-1476 SD60M
1500-1549 GP28-2
1550-1553 SD9-3
1565-1999 SD40-2
2000-2392 GP38-2
2533-2637 GP39-3
2638 GP39-2
2639-2699 GP39-3
2700-2739 GP39-2
2740-2768 GP39E
2770-2799 GP39-2
2800-2811 GP39M
2812 GP39-2
2813-2834 GP39M
2835-2869 GP39-2
2870 GP39-2
2871-2899 GP39M
2900-2939 GP39E
2940-2959 GP39-2
3000-3039 GP40M/E/X
3100-3207 GP50
3764-3999 ET44C4
4000-4199 C44-9W
4200-4299 ES44C4
4300-5532 C44-9W
5533-5599 ES44C4
5600-5717 AC4400CW
5718-5837 ES44AC
5838-5840 AC4400CW
5844-6438 ES44AC
6500-7199 ES44C4
7200-7920 ES44DC
7921-8399 ES44C4
8400-8799 SD70ACe
8800-8989 SD70MAC
8990-9399 SD70ACe
9400-9999 SD70MAC