| Railway | Road nos. | Builder | Model | Quantity | In service | Notes |
| CN | 6000 – 6028 | GMD | SD40u | 29 | 1993 – current | |
| IC | 6000 – 6005 | EMD | SD40-2R | | | |
| WC | 6001 | GMD | SD40 | 1 | | |
| WC | 6002 – 6006 | GMD | SD40-2 | | | |
| IC | 6006 – 6011, 6013 – 6018 | EMD | SD40A-2R | | | |
| IC | 6030, 6032 | EMD | SD40-2 | 2 | | |
| IC | 6034, 6050 – 6052, 6054, 6056 – 6060, 6062 – 6068, 6070 | EMD | SD40-2R | 19 | | |
| GTW | 6041 – 6050 | EMD | GP7 | 10 | | |
| GTW | 6052 | EMD | GP9 | 1 | | |
| IC | 6071 | EMD | SD40Xu | 1 | | |
| IC | 6072 | EMD | SD40-2 | 1 | | |
| CN | 6090 – 6104, 6106 – 6114 | EMD | SD40-2 | | | |
| IC | 6100 – 6130, 6132, 6134 – 6143, 6144, 6147 – 6150, 6153, 6156 – 6158, 6160 | EMD | SD40-2 | | | |
| GTW | 6116 – 6118 | EMD | SW7 | 3 | | |
| GTW | 6119 – 6121 | EMD | SW9 | 3 | | |
| GTW | 6200 – 6206 | EMD | GP38 | 7 | | |
| GTW | 6207 – 6220 | EMD | GP38AC | 14 | | |
| IC | 6200 – 6204 | EMD | SD40-3 | 5 | | |
| GTW | 6221 – 6228 | EMD | GP38-2 | 8 | | |
| IC | 6250 – 6265 | EMD | SD40-3 | 6 | | |
| GTW | 6250 – 6254 | EMD | SD38 | 5 | | |
| GTW | 6350 – 6357 | EMD | GP35m | 8 | | |
| GTW | 6400 -6405 | EMD | GP40 | 6 | | |
| GTW | 6406 -6425 | EMD | GP40-2 | | | |
| WC | 6497, 6503, 6516, 6521, 6529, 6533, 6550, 6552, 6553, 6555, 6556, 6578, 6579, 6582 – 6584, 6586 – 6588, 6590, 6591, 6593 – 6605, 6607 – 6636, 6639 – 6642 | EMD | SD45 | | | |
| CN | 6500 -6542 | GMD | FP9A | | 1954 | |
| CN | 6600 – 6637 | GMD | F9B | | 1954 | |
| WC | 6650, 6651, 6653 – 6656 | EMD | FP45 | | | |
| WC | 6652 | EMD | FP45 | | | |
| CN | 6700 – 6705 | CLC | CPA-16-5 | | 1954 | |
| CN | 6706 – 6711 | MLW | FPA-2 | | | |
| CN | 6750 – 6755 | MLW | FPA-2 | | 1955 | |
| CN | 6758, 6759 | MLW | FPA-2u | | | |
| CN | 6760 – 6793 | MLW | FPA-4 | | 1958 | |
| CN | 6800 – 6805 | CLC | CPB-16-5 | | 1954 | |
| CN | 6806 – 6811 | MLW | FPB-2 | | | |
| CN | 6850 – 6855 | MLW | FPB-2 | | 1955 | |
| CN | 6860 – 6871 | MLW | FPB-4 | | 1955 | |
| WC | 6900 – 6949 | GMD | SD40-3 | | | |
| NBEC | 6900, 6901, 6904, 6905 | GMD | SD40 | | | |
| CFMG | 6902, 6903, 6906 – 6910 | GMD | SD40 | | | |
| CN | 7000 – 7009 | GMD | SW9 | | 1952 | |
| GTW | 7010 – 7016 | EMD | SW9 | | | |
| GTW | 7017 – 7019 | EMD | SW1200 | | | |
| CN | 7020 – 7035 | GMD | SW1200 | | 1956 | |
| CN | 7000 -7083 | GMD | GP9RM | | 1985 | |
| CN | 7100 – 7107 | GMD | SW1200RM | | | |
| CN | 7150 – 7183 | GMD | SW8 | | 1951 | |
| CN | 7200 – 7224; 7233 – 7261 | GMD | SW900 | | | |
| GTW | 7225 – 7232; 7262 – 7268 | EMD | SW900 | | | |
| CN | 7200 – 7280 | CN-GMD | GP9RM | | 1985 | |
| CN | 7300, 7301 | GMD | SW1200RM | | | |
| CN | 7300 -7317 | CN/GMD | SW1200RM | | 1987 | |
| SAR | 7480 -7488 | GE | C39-8 | | | |
| CN | 7500 – 7518, 7520 – 7522, 7524, 7526, 7528, 7530, 7532 | GMD | GP38-2 | | 1973 | |
| WC | 7495, 7496, 7498 – 7502, 7504 – 7515, 7517 – 7520, 7522 – 7528, 7530 – 7532, 7551, 7554, 7580, 7581, 7585, 7589, 7598, 7606, 7637, 7638 | EMD | SD45u | | | |
| CN | 7550, 7551 | GE | 44 Ton | | | |
| CN | 7555 – 7578 | GMD | GP7 | | | |
| CN | 7600 – 7611 | MLW | S-4 | | | |
| CN | 7600 -7629 | CLC | H12-64 | | | |
| CN | 7600 -7608 | GMD | SW900 | | 1958 | |
| CN | 7600, 7601 | GMD | GP40-3 | | | |
| CN | 7670 – 7674 | GMD | G8 | | | |
| CN | 7700 | CLC | Vis-Cab | | | |
| CN | 7700 – 7709 | GMD | SW9 | 10 | 1952 | renumbered from the 70xx series |
| CN | 7720 – 7734 | GMD | SW1200 | 15 | 1956 | renumbered from the 70xx series |
| GTW | 7730 | Brill | Boxcab | 1 | | |
| CN | 7751, 7752 | GE | 44 ton | 2 | | |
| CN | 7800, 7801 | GE | 70 ton | 2 | | |
| GTW | 7800, 7801 | EMC | SC | 2 | | |
| CN | 7803 -7811 | Whitcomb / CLC | 75-DE-12c | 9 | | |
| CN | 7802 – 7819 | GE | 70 ton | 18 | | |
| CN | 7830 – 7847 | MLW | RS-3 | 18 | | |
| GTW | 7900 – 7914 | EMD | NW2 | 15 | | |
| CN | 7900 – 7924, 7933 – 7952 | GMD | SW900 | | | |
| GTW | 7915 – 7935 | ALCO | S-2 | 21 | | |
| CN | 7936 – 7945 | EMD | NW-2 | 10 | | |
| CN | 7946 -7955 | ALCO | S-2 | 10 | | |
| CN | 7956 – 7965 | EMD | NW-2 | 10 | | |
| GTW | 7966 – 7974 | EMD | NW-2 | 9 | | |
| CN | 7975 – 7994 | MLW | S-2 | 20 | | |