Union Pacific Railroad
Timeline of Motive Power, 1983-2001
This page was last updated on December 14, 2005.
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1983
(1,615 total diesel on 1 January 1983)
(Added 1,565 units, along with 23 yard slugs, from control of Missouri Pacific, effective on 1 January 1983)
(Added 145 units from control of Western Pacific, effective on 1 January 1983)
| Added (1,565) | 82 | B23-7 | MP 4600-4684 |
| MP | 3 | B23-7M | MP 4667-4669 |
| 55 | B30-7A | MP 4800-4854 | |
| 160 | GP15-1 | MP 1555-1714 | |
| 30 | GP15AC | MP 1715-1744 | |
| 103 | GP18 | MP 1850-1896, 1900-1994 (not assigned UP numbers) | |
| 2 | GP28 | MP 2000, 2001 | |
| 47 | GP35 | MP 2502-2564 (not assigned UP numbers) | |
| 18 | GP35M | MP 2600-2617 (not assigned UP numbers) | |
| 6 | GP38 | MP 2002-2007 (not assigned UP numbers) | |
| 326 | GP38-2 | MP 2009-2334 | |
| 30 | GP50 | MP 3500-3529 | |
| 62 | MP15DC | MP 1356-1392, 1530-1554 | |
| 90 | SD40 | MP 3000-3089 | |
| 306 | SD40-2 | MP 3090-3321, 6000-6073 | |
| 139 | SW1200 | MP 1100-1166, 1175-1199, 1253-1299 (not assigned UP numbers) | |
| 4 | SW1500 | MP 1518-1521 | |
| 29 | SW9 | MP 1216, 1222-1227, 1229-1234, 1236-1251 (not assigned UP numbers) | |
| 38 | U23B | MP 4500-4537 | |
| 35 | U30C | MP 2965-2999 | |
| 23 | Yard Slug | MP 1400-1422 (not included in total) | |
| Added (145) | 2 | F7A | WP 917, 921 (not assigned UP numbers |
| WP | 12 | GP7 | WP 701, 703-710, SN 711, 712, WP 713 |
| 6 | GP9 | WP 725-732 | |
| 9 | GP20 | WP 2001-2010 | |
| 17 | GP35 | WP 3001-3022 | |
| 41 | GP40 | WP 3501-3544 | |
| 15 | GP40-2 | WP 3545-3559 | |
| 2 | NW2 | SN 607, WP 608 (not assigned UP numbers) | |
| 1 | SW1 | SN 402 (not assigned a UP number) | |
| 6 | SW9 | WP 601-606 (not assigned UP numbers) | |
| 3 | SW1500 | WP 1501-1503 | |
| 13 | U23B | WP 2251-2265 | |
| 18 | U30B | WP 3051-3069 (not assigned UP numbers) | |
| Added (14) | 11 | SW10 | UP 1245-1252, 1254-1256 (rebuilt from SW7s) |
| UP | 3 | SW10 | UP 1253, 1258, 1259 (rebuilt from SW9s) |
| Retired (148) | 2 | F7A | WP 917, 921 |
| 1 | GP7 | UP 103 | |
| 1 | GP7 | WP 713 | |
| 12 | GP9 | UP 136, 137, 139, 151, 170, 177, 187, 189, 226, 264, 275, 337 | |
| 1 | GP20 | UP 481 | |
| 1 | GP20 | WP 2008 | |
| 2 | GP30 | UP 721, 818 | |
| 27 | GP30B | UP 700B, 701B, 702B, 703B, 704B, 707B, 709B, 711B, 713B, 715B, 716B, 717B, 718B, 721B, 722B, 723B, 724B, 726B, 728B, 729B, 731B, 732B, 733B, 735B, 736B, 737B, 739B | |
| 47 | GP35 | MP 2500-2564 | |
| 3 | GP35 | UP 746, 753, 759 | |
| 3 | NW2 | UP 1037, 1039, 1077 | |
| 2 | NW2 | SN 607, WP 608 | |
| 3 | SD24 | UP 400, 401, 425 | |
| 6 | SD45M (Sulzer) | UP 60-65 | |
| 1 | SW1 | SN 402 | |
| 11 | SW7 | UP 1800, 1801, 1802, 1804, 1807, 1808, 1813, 1814, 1816, 1820, 1823 (rebuilt to SW10s) | |
| 3 | SW9 | WP 601-603 (WP 601, 603 rebuilt to SW10s) | |
| 3 | SW9 | UP 1829, 1837, 1841 (rebuilt to SW10s) | |
| 1 | SW9 | MP 1240 | |
| 18 | U30B | WP 3051-3069 |
1984
(3,191 total diesel on 1 January 1984)
| Added (76) | 60 | SD50 | MP 5000-5059 |
| 1 | SW10 | UP 1260 (rebuilt from SW7) | |
| 1 | SW10 | UP 1257 (rebuilt from TR5A) | |
| 1 | SW10 | UP 1265 (rebuilt from SW9) | |
| 9 | SW10 | UP 1261-1264, 1266-1270 (rebuilt from former MP SW9s) | |
| 4 | SW10 | UP 1271-1274 (rebuilt from former WP SW9s) | |
| Retired (252) | 18 | DDA40X | UP 6900, 6901, 6904, 6906, 6907, 6909, 6911, 6915, 6919, 6920, 6925, 6926, 6932, 6933, 6937, 6940, 6944, 6946 |
| 1 | GP7 | UP 121 | |
| 3 | GP7 | WP 708, 709, SN 711 | |
| 13 | GP9 | UP 165, 193, 197, 202, 247, 248, 260, 265, 284, 294, 295, 307, 332 | |
| 2 | GP9 | WP 727, 728 | |
| 103 | GP18 | MP 1850-1896, 1900-1994 | |
| 1 | GP20 | UP 487 | |
| 27 | GP30 | UP 703, 704, 707, 717, 719, 727, 728, 733, 735, 800, 803, 807, 808, 811, 816, 821, 825, 833, 836, 841, 847, 848, 853, 855, 858, 865, 869 | |
| 8 | GP35 | UP 744, 745, 750, 751, 757, 758, 761, 763 | |
| 8 | NW2 | UP 1007, 1030, 1040, 1042, 1055, 1061, 1062, 1091 | |
| 20 | SD40 | MP 3034-3053 | |
| 7 | SD45 | UP 11, 20, 22, 23, 38, 44, 49 | |
| 2 | SW7 | UP 1805 (rebuilt to SW10), UP 1818 (wrecked) | |
| 16 | SW9 | MP 1226, 1231, 1232, 1233, 1237, 1238, 1239, 1241, 1242, 1243, 1244, 1245, 1246, 1249, 1250, 1251 (nine units rebuilt to SW10s) | |
| 3 | SW9 | WP 604-606 (WP 605, 606 rebuilt to SW10s) | |
| 1 | SW9 | UP 1838 (rebuilt to SW10) | |
| 1 | TR5A | UP 1877 (rebuilt to SW10) | |
| 1 | TR5B | UP 1877B | |
| 13 | U30C | UP 2811, 2812, 2814, 2817, 2818, 2819, 2821, 2824, 2826, 2827, 2830, 2841, 2846 | |
| 4 | U30C | MP 2971-2974 |
1985
(3,015 total diesel on 1 January 1985)
| Added (75) | 60 | C36-7 | MP 9000-9059 |
| 15 | MP15DC | UP 1275-1284, 1010-1014 (secondhand) | |
| Retired (378) | 1 | B23-7 | MP 4636 (wrecked) |
| 26 | DDA40X | UP 6902, 6905, 6908, 6910, 6912, 6913, 6914, 6916, 6917, 6918, 6922, 6923, 6924, 6927, 6928, 6929, 6930, 6931, 6934, 6935, 6938, 6939, 6941, 6942, 6943, 6945 | |
| 8 | GP7 | WP 701-707, 710, SN 712 | |
| 17 | GP9 | UP 150, 156, 167, 175, 188, 195, 209, 211, 215, 222, 231, 232, 256, 272, 291, 296, 329 | |
| 4 | GP9 | UP 300, 304, 306, 308 (ex WP 725, 729, 731, 732) | |
| 8 | GP20 | UP 488 (ex WP 2009), WP 2001-2007, 2010 | |
| 24 | GP30 | UP 705, 718, 725, 730, 806, 812, 813, 817, 819, 826, 830, 831, 838, 843, 846, 849, 850, 851, 854, 859, 860, 866, 870, 872 | |
| 9 | GP35 | UP 741, 742, 743, 747, 748, 749, 756, 760, 762 | |
| 1 | GP35M | MP 2615 | |
| 22 | GP40 | UP 648 (ex CRI&P 4717), CRI&P 341, 342, 347, 349, 353, 357, 358, 359, 362, 363, 365, 366, 367, 369, 373, 4703, 4707, 4710, 4713, 4718, 4719 | |
| 10 | GP40 | WP 3517-3526 | |
| 8 | NW2 | UP 1024, 1043, 1080, 1081, 1085, 1086, 1092, 1095 | |
| 6 | SD24 | UP 410, 413, 417, 422, 429, 446 | |
| 1 | SD24M | UP 99 | |
| 10 | SDP35 | UP 1400-1409 | |
| 1 | SD40X | UP 3047 | |
| 2 | SD40-2 | UP 3178 (wrecked), 3309 (wrecked) | |
| 30 | SD45 | UP 1, 2, 3, 5, 7, 9, 10, 12, 16, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 33, 35, 36, 39, 40, 42, 45, 46, 47, 50 | |
| 1 | SW7 | UP 1811 | |
| 12 | SW9 | MP 1216, 1222, 1223, 1224, 1225, 1227, 1229, 1230, 1234, 1236, 1247, 1248 | |
| 139 | SW1200 | MP 1100-1166, 1175-1199, 1253-1299 | |
| 27 | U30C | UP 2810, 2816, 2825, 2831, 2834, 2835, 2837, 2842, 2843, 2844, 2845, 2847, 2848, 2850, 2851, 2852, 2853, 2854, 2856, 2857, 2859, 2861, 2863, 2866, 2867, 2868, 2877 | |
| 10 | U30C | MP 2965-2970, 2975-2978 |
1986
(2,713 total diesel on 1 January 1986)
| Added (60) | 60 | SD60 | UP 6000-6059 |
| Retired (67) | 3 | GP30 | UP 715, 822, 828 |
| 15 | GP35M | MP 2600, 2603-2605, 2607-2614 | |
| 16 | GP40 | UP 676, 679, 680, 681, 684, 686, 690 (ex WP 3528, 3531, 3532, 3533, 3536, 3538, 3543), WP 3529, 3530, 3534, 3535, 3537, 3539, 3541, 3542, 3544 | |
| 2 | SD40 | UP 3023, 3053 | |
| 20 | SD40 | MP 3070-3089 | |
| 1 | SD40X | UP 3040 | |
| 10 | U30C | UP 2838, 2839, 2855, 2862, 2869, 2874, 2880, 2899, 2903 |
1987
(2,706 total diesel on 1 January 1987)
| Added (35) | 35 | C40-8 | UP 9100-9134 |
| Retired (179) | 3 | C30-7 | UP 2425 (wrecked), 2432 (wrecked), 2536 (wrecked) |
| 1 | GP28 | MP 2001 | |
| 16 | GP30 | UP 702, 706, 711, 720, 729, 732, 802, 805, 823, 832, 834, 837, 842, 856. 868, 873 | |
| 2 | GP35M | MP 2601, 2606 | |
| 6 | GP38 | MP 2002-2007 | |
| 1 | GP38-2 | UP 2026 (wrecked) | |
| 45 | GP38-2 | UP 2337, 2338, 2362, 2369, 2374, 2375, 2377 (ex MP 2011, 2012, 2036, 2043, 2048, 2049, 2051) MP 2009, 2010, 2013-2035, 2037-2042, 2044-2047, 2050, 2052, 2053 (including six units renumbered to UP 2300s) | |
| 10 | GP40 | UP 604, 606, 610, MP 612, UP 614, 615, 626, 628, 629, 646 (ex CRI&P 344, 346, 350, 352, 354, 355, 368, 371, 372, 4715) | |
| 17 | SD40 | UP 3000, 3011, 3013, 3020, 3022, 3024, 3033, 3036, 3038, 3039, 3051, 3061, 3062, 3075, 3081, 3094, 3095 | |
| 6 | SD45 | UP 4, 6, 17, 32, 41, 48 | |
| 3 | U23B | MP 4518, 4519, 4520 | |
| 13 | U23B | WP 2251-2265 | |
| 44 | U30C | UP 2813, 2815, 2822, 2823, 2828, 2833, 2836, 2849, 2858, 2871, 2872, 2873, 2876, 2879, 2881, 2882, 2885, 2886, 2887, 2888, 2890, 2893, 2896, 2901, 2906, 2912, 2914, 2915, 2919, 2920, 2921, 2923, 2926, 2928, 2930, 2931, 2935, 2936, 2937, 2938, 2941, 2942, 2952, 2958 | |
| 12 | U30C | MP 2979-2984, 2994-2999 | |
| 3 | Yard Slug | UP S1, S2, S8 (not included in total) |
1988
(2,562 total diesel on 1 January 1988)
(Added 237 units, along with one yard slug and one road slug, from control of Missouri Kansas Texas, effective on 12 August 1988)
| Added (237) | 1 | F3AM | MKT 401B |
| MKT | 7 | GP38 | MKT 300-303, 322-324 |
| 18 | GP38-2 | MKT 304-321 | |
| 18 | GP38AC | MKT 325-343 (except MKT 336) | |
| 29 | GP39-2 | MKT 360-388 | |
| 24 | GP40 | MKT 170-248 (not assigned UP numbers) | |
| 54 | GP40 | MKT 194-221, 223-248 | |
| 33 | GP7 | MKT 91-123 (not assigned UP numbers) | |
| 4 | MP15AC | MKT 56-59 | |
| 6 | RS3M | MKT 142, 143, 146, 152-154 (not assigned UP numbers) | |
| 1 | S12R | MKT 34 (not assigned a UP number) | |
| 36 | SD40-2 | MKT 600-637 (except MKT 613, 628) | |
| 6 | SW1500 | MKT 50-55 | |
| 1 | Yard Slug | MKT 500 (not included in total) | |
| 1 | Road Slug | MKT 501 (not included in total) | |
| Added (195) | 159 | C40-8 | UP 9135-9293 |
| 6 | C40-8 | UP 9350-9355 | |
| 25 | SD60 | UP 6060-6084 | |
| 5 | SD60M | UP 6085-6089 | |
| Retired (124) | 1 | C30-7 | UP 2539 (wrecked) |
| 1 | F3AM | MKT 401B | |
| 9 | GP30 | UP 726, 804, 820, 824, 827, 829, 840, 863, 871 | |
| 20 | GP38-2 | UP 2384, 2385 (ex MP 2058, 2059), MP 2054-2057, 2060-2073 | |
| 2 | GP40 | UP 603, 637 (ex CRI&P 343, 4706) | |
| 22 | SD40 | UP 3002, 3010, 3016, 3017, 3025, 3026, 3029, 3034, 3048, 3049, 3050, 3058, 3064, 3065, 3067, 3068, 3073, 3084, 3092, 3100, 3102, 3107 | |
| 1 | SD40X | UP 3046 | |
| 16 | SD40 | MP 3001, 3003, 3006, 3009, 3011, 3013, 3014, 3015, 3016, 3021, 3024, 3025, 3026, 3055, 3058, 3069 | |
| 2 | SD40-2 | UP 3482 (wrecked), 3617 (wrecked) | |
| 1 | SD40-2 | UP 4105 (ex-MP 3105)(wrecked) | |
| 1 | SW10 | UP 1245 | |
| 2 | SW1500 | UP 1318, 1319 (ex MP 1518, 1519) | |
| 10 | U23B | MP 4500-4506, 4510, 4516, 4521 | |
| 33 | U30C | UP 2829, 2832, 2860, 2864, 2865, 2875, 2878, 2883, 2889, 2891, 2892, 2895, 2898, 2900, 2905, 2909, 2913, 2916, 2917, 2918, 2924, 2927, 2929, 2932, 2933, 2939, 2945, 2946, 2947, 2949, 2953, 2956, 2959 | |
| 3 | U30C | MP 2985, 2988, 2993 |
1989
(2,870 total diesel on 1 January 1989)
| Added (249) | 56 | C40-8 | UP 9294-9349 |
| 4 | C40-8W | UP 9356-9359 | |
| 1 | GP38 | UP 1974 (leased from Helm) | |
| 29 | GP38-2 | UP 1800-1828 (leased from Helm, former MP) | |
| 32 | GP40 | UP 850-878, 880, 885, 886 (leased from Helm) | |
| 1 | MP15AC | UP 1329 (leased from Helm) | |
| 126 | SD60M | UP 6090-6215 | |
| Retired (123) | 33 | GP7 | MKT 91-123 (not assigned UP numbers) |
| 1 | GP28 | MP 2000 | |
| 4 | GP30 | UP 701, 723, 844, 874 | |
| 17 | GP40 | MKT 175, 175, 182-193, 217, 221, 233 | |
| 6 | RS3M | MKT 142, 143, 146, 152-154 (not assigned UP numbers) | |
| 1 | S12R | MKT 34 (not assigned a UP number) | |
| 14 | SD40 | UP 3018, 3019, 3021, 3035, 3037, 3052, 3054, 3055, 3059, 3072, 3074, 3078, 3104, 3114 | |
| 3 | SD40 | MP 3000, 3004, 3029 | |
| 1 | SD40X | UP 3041 | |
| 2 | SD40-2 | UP 3282 (wrecked), 3738 (wrecked) | |
| 1 | SD60 | UP 6014 (wrecked) | |
| 2 | SW1500 | UP 1322, 1323 (ex MKT 50, 51) | |
| 12 | U23B | UP 546, 563, 565, 566, 568-571 (ex MP 4512, 4529, 4531, 4532, 4534, 4535, 4536, 4537), MP 4522, 4528, 4530, 4533 | |
| 20 | U30C | UP 2840, 2894, 2897, 2902, 2904, 2907, 2908, 2910, 2911, 2922, 2925, 2934, 2940, 2943, 2944, 2950, 2951, 2954, 2955, 2957 | |
| 6 | U30C | MP 2986, 2987, 2989-2992 | |
| 5 | Yard Slug | UP S4, S5, S6, S7, MKT 500 (not included in total) |
1990
(2,996 total diesel on 1 January 1990)
| Added (132) | 46 | C40-8W | UP 9360-9405 |
| 28 | C41-8W | UP 9406-9433 | |
| 5 | GP40 | UP 879, 881-884 (leased from Helm) | |
| 53 | SD60M | UP 6216-6268 | |
| Retired (70) | 1 | GP38AC | UP 1990 (wrecked, ex MKT 333) |
| 1 | GP40 | UP 616 (ex CRI&P 356) | |
| 6 | GP40 | UP 598 (ex MKT 229), MKT 171, 207, 208, 216, 230 | |
| 1 | GP40 | UP 863 (wrecked, leased from Helm) | |
| 13 | SD40 | UP 3001, 3003, 3009, 3030, 3031, 3056, 3077, 3082, 3090, 3106, 3109, 3110, 3113 | |
| 4 | SD40 | MP 3019, 3022, 3054, 3068 | |
| 38 | SD40-2 | UP 4164-4168, 4170-4175, 4177, 4178, 4180-4182, 4184, 4186-4193, 4196-4199, 4201 (ex MP 3164-3168, 3170-3175, 3177, 3178, 3180-3182, 3184, 3186-3193, 3196-3199, 3201), MP 3169, 3176, 3179, 3183, 3185, 3194, 3195, 3200 | |
| 1 | SD40-2 | MP 3130 | |
| 2 | SW10 | UP 1266, 1274 (1st) | |
| 3 | U23B | UP 551 (ex MP 4517), MP 4507, 4525 |
1991
(3,058 total diesel on 1 January 1991)
| Added (72) | 47 | C41-8W | UP 9434-9480 |
| 1 | GP40 | UP 887 (leased from UP) | |
| 24 | SD60M | UP 6269-6292 | |
| 3 | Road Slug | UP S301-S303 (not included in total) | |
| Retired (63) | 12 | GP40 | UP 600, 605, 611, 633, 635, 636, 639, 640, MP 642, UP 643, 645, 647 (ex CRI&P 340, 345, 351, 4702, 4704, 4705, 4708, 4709, 4711, 4712, 4714, 4716) |
| 3 | GP40 | MKT 172, 178, 179 | |
| 23 | SD40 | UP 3004, 3005, 3012, 3014, 3027, 3032, 3057, 3063, 3069, 3085, 3088, 3089, 3097, 3101, 3103, 3108, 3111, 3112, 3116, 3117, 3118, 3121, 3122 | |
| 13 | SD40 | MP 3008, 3018, 3020, 3027, 3028, 3030, 3031, 3032, 3033, 3056, 3059, 3063, 3067 | |
| 3 | SD40X | UP 3043, 3044, 3045 | |
| 1 | SD40-2 | UP 3502 (wrecked) | |
| 2 | SW10 | UP 1237 (1st), 1271 | |
| 6 | U23B | UP 542, 545, 547, 548 (ex MP 4508, 4511, 4513, 4514), MP 4509, 4515 |
1992
(3,067 total diesel on 1 January 1992)
| Added (73) | 73 | SD60M | UP 6293-6365 |
| Retired (66) | 4 | GP40 | UP 608, 622, 631, 632 (ex CRI&P 348, 364, 4700, 4701) |
| 1 | GP40 | UP 882 (fire damage, leased from Helm) | |
| 15 | GP40 | UP 501-505, 507-512, 515 (ex MKT 195-199, 201-206, 209), MKT 194, 200, 210 | |
| 6 | GP40 | MKT 170, 173, 174, 177, 180, 181 (not assigned UP numbers) | |
| 22 | SD40 | UP 3006, 3007, 3008, 3015, 3028, 3060, 3066, 3070, 3076, 3079, 3080, 3083, 3086, 3087, 3091, 3093, 3096, 3098, 3099, 3105, 3115, 3120 | |
| 14 | SD40 | MP 3002, 3005, 3007, 3010, 3012, 3017, 3023, 3057, 3060, 3061, 3062, 3064, 3065, 3066 | |
| 1 | SD40X | UP 3042 (transferred to heritage fleet in 1993) | |
| 1 | SD40-2 | UP 3797 (wrecked) | |
| 2 | SW10 | UP 1216, 1267 |
1993
(3,074 total diesel on 1 January 1993)
| Added (114) | 79 | C41-8W | UP 9481-9559 |
| 2 | E9AM | UP 949, 951 (rebuilt by VMV) | |
| 1 | E9BM | UP 973B (rebuilt by VMV) | |
| 32 | MP15AC | UP 1397-1428 (purchased secondhand) | |
| Retired (38) | 17 | GP35 | UP 782-799 (former WP) |
| 4 | GP38-2 | UP 2081, 2086, 2095, 2098 (all former MP, same numbers) | |
| 15 | GP40 | UP 651-665 (ex WP 3501-3516, except 3505) | |
| 1 | SD40-2 | UP 3840 (ex MKT 633, wrecked) | |
| 1 | SW10 | UP 1224 | |
| Operated | 1 | PL1500 | UP 1500 (April 1993 to August 1993) |
| 1 | RD20 | UP 20 (April 1993 to November 1993) |
1994
(3,150 total diesel on 1 January 1994)
| Added (45) | 40 | C44-9W | UP 9700-9739 |
| 3 | C44AC | UP 9997-9999 | |
| 2 | MK1200G | UP 1298, 1299 (leased from MK Rail) | |
| Retired (35) | 2 | C30-7 | UP 2475 (wrecked), 2509 (wrecked) |
| 1 | GP38 | UP 1974 (leased from Helm) | |
| 18 | GP38-2 | UP 2074 (wrecked), MP 2075, UP 2077, 2079, 2080, 2082, 2083, 2085, 2091, 2093, 2100, 2102, 2104, 2105, 2106, 2107, 2109, 2110 (all former MP, same numbers) | |
| 1 | MP15AC | UP 1329 (leased from Helm) | |
| 1 | SD40-2 | UP 3388 (wrecked) | |
| 5 | SD40-2 | UP 3900-3904 (ex MP 6000-6004) | |
| 1 | SW10 | UP 1209 (wrecked) | |
| 2 | SW1500 | UP 1320, 1321 (ex MP 1520, 1521) | |
| 4 | U23B | UP 557 558, 560, 561 (ex MP 4523, 4524, 4526, 4527) |
1995
(3,160 total diesel on 1 January 1995)
(Added 776 units from control of Chicago & North Western, effective on 24 April 1995)
| Added (776) | 77 | C40-8 | C&NW 8501-8577 |
| C&NW | 130 | C44-9W | C&NW 8601-8730 |
| 35 | C44AC | C&NW 8801-8835 | |
| 4 | F7A | C&NW 400-403 (not assigned UP numbers; transferred to heritage fleet) | |
| 3 | F7B | C&NW 315, 410, (not assigned UP numbers; transferred to heritage fleet) | |
| 10 | GP15-1 | C&NW 4400-4410 | |
| 46 | GP38-2 | C&NW 4600-4634, 4701-4711 | |
| 33 | GP40 | C&NW 5500-5537 | |
| 48 | GP50 | C&NW 5050-5099 | |
| 90 | GP7R | C&NW 4100s, 4200s, 4300s, 4400s (not assigned UP numbers) | |
| 16 | GP9R | C&NW 4300s, 4500s (not assigned UP numbers) | |
| 14 | MP15DC | C&NW 1302-1316 | |
| 23 | SD18R | C&NW 6622-6647 (not assigned UP numbers) | |
| 10 | SD38-2 | C&NW 6650-6659 | |
| 132 | SD40-2 | C&NW 6801-6935 | |
| 13 | SD45 | C&NW 903, 950, 954, 6481, 6482, 6500, 6503, 6523, 6537, 6539, 6544, 6567, 6584 (not assigned UP numbers) | |
| 1 | SD45R | C&NW 6564 (not assigned a UP number) | |
| 35 | SD50 | C&NW 7000-7034 | |
| 55 | SD60 | C&NW 8001-8055 | |
| 1 | SD-CAT | C&NW 6000 (not assigned a UP number) | |
| Added (93) | 35 | C44/60AC | UP 7013-7047 |
| 50 | C44AC | UP 6838-6887 | |
| 6 | SD38-2 | UP 2800-2805 (purchased secondhand, former C&IM), 2824 (purchased secondhand, former MR) | |
| 2 | SD9043AC | UP 8000, 8001 | |
| Retired (28) | 1 | C30-7 | UP 2484 (wrecked) |
| 1 | C40-8 | UP 9154 (wrecked) | |
| 1 | C41-8W | UP 9412 (1st) (wrecked) | |
| 24 | SD40-2 | UP 4090-4114 (ex MP 3090-3114) | |
| 1 | SD60M | UP 6244 (wrecked) |
1996
(4,001 total diesel on 1 January 1996)
(Added 2,196 units, along with three yard slugs and 11 road slugs, from control of Southern Pacific/SSW, effective on 11 September 1996)
(Added 181 units from control of D&RGW, effective on 11 September 1996)
| Added (2,196) | 14 | B23-7 | SP 5100-5114 |
| SP/SSW | 102 | B30-7 | SP/SSW 7774-7883 |
| 16 | B36-7 | SP/SSW 7754-7770 | |
| 40 | B39-8 | SP 8000-8039 | |
| 51 | B40-8 | SP 8040-8093 | |
| 101 | C44-9W | SP 8100-8200 | |
| 277 | C44AC | SP 100-378 (AC4400CW) | |
| 3 | GP35R | SP 4160, SSW 4201, 4203 (not assigned UP numbers) | |
| 13 | GP35R | SP 6307, 6312, 6313, 6316, 6317, 6333, 6340, 6343, 6346, 6348, 6351, 6354, 6359 (not assigned UP numbers) | |
| 44 | GP38-2 | SP 4800-4844 | |
| 28 | GP38-2 | SP 4845-4871 | |
| 116 | GP40-2 | SP 7240-7273, 7608-7677, 7940-7959 | |
| 7 | GP40-2 | SSW 7960-7966 | |
| 65 | GP40M-2 | SP 7100-7134, 7274-7299 | |
| 3 | GP40P-2 | SP 7600-7602 | |
| 1 | GP40X | SP 7231 | |
| 191 | GP60 | SP/SSW 9600-9794 | |
| 11 | GP9 | SP 3194, 3338, 3421, 3756, 3789, 3800, 3827, 3833, 3842, 3880, 3883 (not assigned UP numbers) | |
| 57 | MP15AC | SP 2702-2759 | |
| 9 | MP15DC | SP 2690, 2693, 2694, 2695, 2696, 2698, 2699, 2700, 2701 | |
| 11 | SD35R | SP 2957, 2961-2970 (not assigned UP numbers) | |
| 6 | SD38-2 | SP 2971-2976 | |
| 2 | SD39 | SP 5298, 5318 | |
| 133 | SD40M-2 | SP 8574-8706 | |
| 83 | SD40R | SP 7300-7385 (not assigned UP numbers) | |
| 231 | SD40T-2 | SP 8230-8391, 8489-8573 | |
| 1 | SD44R | SP 7399 (not assigned a UP number) | |
| 143 | SD45R | SP 7400-7536 (not assigned UP numbers) | |
| 110 | SD45T-2 | SP/SSW 9189-9404 | |
| 98 | SD45T-2R | SP 6793-6892 | |
| 14 | SD7 | SP 1503, 1505, 1507, 1508, 1512, 1517, 1518, 1519, 1520, 1521, 1523, 1524, 1534, 1540 (not assigned UP numbers) | |
| 25 | SD70M | SP 9800-9824 | |
| 12 | SD9 | SP 4313, 4338, 4371, 4390, 4396, 4401, 4402, 4409, 4415, 4436, 4450 (not assigned UP numbers) | |
| 4 | SW1200 | SSW 2251, 2257, SP 2277, SSW 2293 (not assigned UP numbers) | |
| 174 | SW1500 | SP/SSW 2451-2689 | |
| 3 | Yard Slug | SP 1010, 1012, 1013 (not included in total) | |
| 11 | Road Slug | SP 1600-1602, 1605, 1606, 1608-1613 (not included in total) | |
| Added (181) | 1 | F9B | D&RGW 5763 (not assigned a UP number) |
| D&RGW | 6 | GP30 | D&RGW 3002, 3003, 3006, 3007, 3008, 3015 (not assigned UP numbers) |
| 37 | GP40 | D&RGW 3051-3093, 3131-3153 (including nine units not assigned UP numbers) | |
| 35 | GP40-2 | D&RGW 3094-3130 | |
| 3 | GP60 | D&RGW 3154-3156 | |
| 69 | SD40T-2 | D&RGW 5341-5413 | |
| 7 | SD45 | D&RGW 5322-5326, 5328, 5331 (not assigned UP numbers) | |
| 17 | SD50 | D&RGW 5501-5517 | |
| 3 | SW1000 | D&RGW 141, 142, 144 (not assigned UP numbers) | |
| 3 | SW1200 | D&RGW 133, 134, 139 (not assigned UP numbers) | |
| Added (269) | 1 | C41-8W | UP 9412 (2nd) (rebuilt from wrecked UP 9274 and CSXT 7770) |
| 3 | C44/60AC | UP 7010-7012 | |
| 32 | C44/60AC | UP 7048-7079 | |
| 100 | C44AC | UP 6738-6837 | |
| 10 | C60AC | UP 7000-7009 | |
| 9 | GP38-3 | UP 2400, 2401, 2402, 2403, 2404, 2405, 2406, 2407, 2408 (rebuilt from GP38s, leased from Helm) | |
| 20 | GP39-2 | UP 2729-2748 (leased from Connell) | |
| 2 | GP39-2 | UP 2749, 2750 (leased from Helm) | |
| 73 | SD9043AC | UP 8002-8074 | |
| 4 | SW1500 | UP 1000-1003 (secondhand from Helm) | |
| 15 | SW1500 | UP 1004-1018 (leased from Helm) | |
| Retired (123) | 1 | C30-7 | UP 2459 |
| 1 | C40-8 | UP 9274 (wrecked) | |
| 4 | F7A | C&NW 400-403 (not assigned UP numbers) | |
| 3 | F7B | C&NW 315, 410, 411 (not assigned UP numbers) | |
| 1 | F9B | D&RGW 5763 (transferred to heritage fleet) | |
| 4 | GP38 | UP 1975-1978 (ex MKT 300-303) | |
| 1 | GP40 | UP 861 (leased from Helm) | |
| 47 | GP7R | C&NW 4105, 4106, 4108, 4109, 4110, 4113, 4117, 4122, 4123, 4134, 4136, 4137, 4142, 4145, 4148, 4149, 4150, 4152, 4153, 4154, 4155, 4156, 4161, 4162, 4164, 4168, 4170, 4175, 4176, 4179, 4181, 4182, 4183, 4184, 4186, 4187, 4192, 4193, 4198, 4199, 4200, 4202, 4203, 4207, 4208, 4314, 4344 (not assigned UP numbers) | |
| 10 | GP9R | C&NW 4322, 4333, 4527, 4550, 4552, 4553, 4556, 4557, 4558, 4559 (not assigned UP numbers) | |
| 9 | SD18R | C&NW 6630, 6631, 6633, 6635, 6638, 6643, 6644, 6645, 6647 (not assigned UP numbers) | |
| 2 | SD40-2 | UP 3341 (wrecked), 3354 (wrecked) | |
| 1 | SD40-2 | UP 3844 (ex MKT 637) | |
| 12 | SD45 | C&NW 903, 950, 954, 6481, 6482, 6500, 6523, 6537, 6539, 6544, 6567, 6584 (not assigned UP numbers) | |
| 18 | SD45R | SP 7540, 7541, 7542, 7543, 7544, 7545, 7546, 7547, 7548, 7550, 7552, 7554, 7555, 7556, 7557, 7558, 7559, 7560 | |
| 1 | SD-CAT | C&NW 6000 (not assigned a UP number) | |
| 8 | SW10 | UP 1203, 1208, 1227, 1241 (1st), 1258, 1264 (1st), 1272, 1273 |
1997
(6,524 total diesel on 1 January 1997)
| Added (424) | 150 | C44AC | UP 6550-6699 |
| 21 | C44AC | UP 7080-7100 | |
| 3 | GP15-1 | UP 1542-1544 (leased from Helm, former C&NW) | |
| 61 | GP38-2 | UP 1910-1970 (leased from EMD) | |
| 17 | GP38-2 | UP 1830-1846 (leased from Helm, former MP) | |
| 9 | GP38-2 | UP 2390-2398 (leased from LLP) | |
| 1 | GP38-2 | UP 2425 (leased from Helm, rebuilt from a GP38) | |
| 8 | GP38-3 | UP 2409-2416 (leased from Helm, rebuilt from GP38s) | |
| 24 | GP38-3 | UP 2500-2522, 2525 (leased from Helm, rebuilt from GP40s) | |
| 3 | MP15AC | UP 1429, 1430, 1488 (leased from Helm) | |
| 2 | MP15DC | UP 1289, 1290 (leased from Helm, former SP) | |
| 1 | SD38-2 | UP 2824 (ex MR 39) | |
| 8 | SD38-2R | UP 2816-2823 (rebuilt from former MP SD40-2s) | |
| 104 | SD9043AC | UP 8075-8178 | |
| 12 | SW1500 | UP 1019-1029, 1059 (leased from Helm) | |
| Retired (172) | 8 | B36-7 | SP 7755, 7757, 7760, 7761, 7762, 7767, 7768, 7769 |
| 1 | B39-8 | SP 8004 (wrecked) | |
| 3 | C30-7 | UP 2489 (wrecked), 2532, 2534 | |
| 2 | C40-8 | UP 9118 (wrecked), 9186 (wrecked) | |
| 1 | C44-9W | UP 9716 (wrecked) | |
| 2 | GP30 | D&RGW 3007, 3008 (not assigned UP numbers) | |
| 8 | GP35R | SP 6307, 6333, 6340, 6343, 6346, 6351, 6354, 6359 (not assigned UP numbers) | |
| 1 | GP35R | SP 4160 (not assigned a UP number) | |
| 1 | GP38 | UP 1979 (ex MKT 322) | |
| 1 | GP38AC | UP 1995 (ex MKT 339) | |
| 2 | GP40 | C&NW 5505, 5511 | |
| 12 | GP40 | D&RGW 3051, 3053, SP 3059, D&RGW 3061, 3062, 3066, 3068, 3081, 3139, 3147, 3152, 3153 (all except D&RGW 3081, 3147 and 3153 not assigned UP numbers) | |
| 2 | GP40 | UP 581, 673 (ex MKT 211, 238) | |
| 1 | GP40 | UP 867 (leased from Helm) | |
| 1 | GP40X | UP 956 (wrecked) | |
| 1 | GP50 | UP 5530 (ex C&NW 5078, wrecked) | |
| 27 | GP7R | C&NW 4101, 4103, 4104, 4114, 4116, 4124, 4125, 4126, 4127, 4128, 4130, 4131, 4138, 4140, 4143, 4157, 4163, 4169, 4174, 4178, 4180, 4194, 4195, 4197, 4201, 4205, 4457 (not assigned UP numbers) | |
| 9 | GP9 | SP 3194, 3338, 3421, 3789, 3800, 3833, 3842, 3880, 3883 (not assigned UP numbers) | |
| 1 | GP9R | C&NW 4554 (not assigned a UP number) | |
| 9 | SD7 | SP 1503, 1505, 1507, 1508, 1517, 1519, 1520, 1524, 1540 (not assigned UP numbers) | |
| 10 | SD9 | SP 4313, 4338, 4371, 4390, 4396, 4402, 4407, 4415, 4436, 4450 (not assigned UP numbers) | |
| 13 | SD18R | C&NW 6622, 6623, 6625, 6626, 6627, 6628, 6629, 6632, 6634, 6636, 6637, 6640, 6641 (not assigned UP numbers) | |
| 4 | SD35R | SP 2966, 2967, 2968, 2970 (not assigned UP numbers) | |
| 3 | SD40R | SP 7342, 7355, 7373 (not assigned UP numbers) | |
| 1 | SD40-2 | UP 3616 (wrecked) | |
| 8 | SD40-2 | UP 4120, 4132, 4218, 4226, 4227, 4245, 4249, 4276 (former MP, rebuilt to SD38-2Rs) | |
| 1 | SD40-2 | UP 4211 (ex MP 3211, wrecked) | |
| 1 | SD40T-2 | SP 8511 (wrecked) | |
| 1 | SD45 | C&NW 6503 (not assigned a UP number) | |
| 5 | SD45 | D&RGW 5323, 5325, 5326, 5328, 5331 (not assigned UP numbers) | |
| 1 | SD45R | C&NW 6564 (not assigned a UP number) | |
| 12 | SD45R | SP 7404, 7410, 7445, 7448, 7450, 7462, 7464, 7472, 7474, 7483, 7519, 7522 (not assigned UP numbers) | |
| 1 | SD45T-2R | SP 6794 | |
| 1 | SD45T-2 | SP 9257 | |
| 1 | SD50 | UP 5027 (ex MP 5027, wrecked) | |
| 1 | SD60 | UP 5981 (ex C&NW 8021, wrecked) | |
| 1 | SD60M | UP 6143 (wrecked) | |
| 10 | SW10 | UP 1200, 1219, 1250, 1254, 1259, 1261, 1262, 1263, 1268, 1270 | |
| 1 | SW1200 | D&RGW 134 (not assigned a UP number) | |
| 3 | SW1200 | SSW 2251, SP 2277, SSW 2293 (not assigned UP numbers) | |
| 2 | Yard Slug | SP 1602, 1610 (not included in total) |
1998
(6,776 total diesel on 1 January 1998)
| Added (359) | 10 | C44AC | UP 7000-7009 (ex GECX 4000-4009) |
| 37 | C44AC | UP 7101-7137 | |
| 36 | C44/60AC | UP 7300-7335 | |
| 45 | C60AC | UP 7510-7554 | |
| 9 | GP38-2 | UP 2381-2389 (leased from LLP) | |
| 2 | GP38-2 | UP 2418, 2419 (leased from Helm, rebuilt from GP38s) | |
| 50 | GP38-2 | UP 2527-2541, 2545, 2546, 2549-2552, 2554, 2556-2565, 2567, 2568, 2572-2575, 2577-2588 (leased from Helm, rebuilt from GP40s) | |
| 1 | GP38-3 | UP 2417 (leased from Helm, rebuilt from a GP38) | |
| 3 | GP38-3 | UP 2523, 2524, 2526 (leased from Helm, rebuilt from GP40s) | |
| 6 | SD38-2R | UP 2825-2829, 2836 (rebuilt from former MP SD40-2s) | |
| 2 | SD40-2 | UP 4733, 4734 | |
| 13 | SD40-2T | UP 4794-4831 (rebuilt from former SP SD45T-2s) | |
| 13 | SD90AC | UP 8500-8514 | |
| 130 | SD9043AC | UP 8179-8308 | |
| 2 | SW1500 | UP 1030, 1031 (leased from Helm) | |
| Retired (209) | 10 | C30-7 | UP 412, 413, 424, 448, 466, 469, 2427, 2448, 2455, 2537 |
| 1 | GP30 | D&RGW 3006 (not assigned a UP number) | |
| 2 | GP35R | SP 6312, 6348 (not assigned UP numbers) | |
| 34 | GP40 | UP 850-860, 862, 864-866, 868-881, 883-887 (leased from Helm) | |
| 4 | GP40 | D&RGW 3064, 3078, 3093, 3148 | |
| 11 | GP40 | UP 582, 583, 584, 585, 589, 592, 593, 594, 597, 805, 807 (ex MKT 212, 213, 214, 215, 218, 219, 220, 223, 224, 225, 228) | |
| 1 | GP40-2 | D&RGW 3125 | |
| 1 | GP50 | UP 967 (wrecked, former MP) | |
| 13 | GP7R | C&NW 4100, 4102, 4107, 4118, 4121, 4132, 4135, 4141, 4144, 4160, 4191, 4206, 4209 (not assigned UP numbers) | |
| 1 | GP9 | SP 3827 (not assigned a UP number) | |
| 2 | GP9R | C&NW 4331, 4551 (not assigned UP numbers) | |
| 2 | MK1200G | UP 1298, 1299 (leased from MK Rail) | |
| 3 | SD35R | SP 2961, 2964, 2969 (not assigned UP numbers) | |
| 2 | SD40M-2 | SP 8617 (wrecked), 8651 (wrecked) | |
| 5 | SD40R | SP 7318, 7346, 7353, 7359, 7362 (not assigned UP numbers) | |
| 6 | SD40-2 | UP 4141, 4162, 4242, 4261, 4269, 4288 (former MP, rebuilt to SD38-2Rs) | |
| 1 | SD44R | SP 7399 (not assigned a UP number) | |
| 1 | SD45 | D&RGW 5322 (not assigned a UP number) | |
| 9 | SD45R | SP 7419 (wrecked), 7430, 7431, 7439, 7449, 7460, 7509, 7524, 7528 (not assigned UP numbers) | |
| 3 | SD45T-2 | SP 9206 (wrecked), 9316, 9361 | |
| 38 | SD45T-2R | SP6829-6868 (rebuilt to SD40-2T) | |
| 4 | SD7 | SP 1512, 1518 (transferred to heritage fleet), 1521, 1523 (not assigned UP numbers) | |
| 2 | SD9 | SP 4401, 4409 (not assigned UP numbers) | |
| 47 | SW10 | UP 1202, 1204, 1205, 1207, 1211, 1212, 1213, 1214, 1217, 1218, 1220, 1221, 1222, 1223, 1225, 1226, 1228, 1230, 1231, 1232, 1234, 1235, 1236, 1237 (2nd), 1238, 1239, 1240, 1241 (2nd), 1242, 1244, 1246, 1247, 1248, 1249, 1251, 1252, 1253, 1255, 1256, 1257, 1260, 1264 (2nd), 1265, 1269, 1274 (2nd), 1276, 1284 | |
| 3 | SW1000 | D&RGW 141, 142, 144 (not assigned a UP number) | |
| 2 | SW1200 | D&RGW 133, 139 (not assigned UP numbers) | |
| 1 | SW1200 | SSW 2257 (not assigned a UP number) |
1999
(6,926 total diesel on 1 January 1999)
| Added (295) | 36 | C36M | UP 564-599 (rebuilt from C30-7) |
| 165 | C44AC | UP 6995-6999, 7138-7297 | |
| 10 | GP38-2 | UP 2542, 2543, 2544, 2547, 2548, 2553, 2555, 2569, 2570, 2576 (leased from Helm, rebuilt from GP40s) | |
| 10 | SD38-2R | UP 2837-2846 (rebuilt from former MP SD40-2s) | |
| 1 | SD38-2R | UPY 847 (rebuilt from former MP SD40-2) | |
| 41 | SD40-2 | UP 4735-4775 (rebuilt from SD39s, SD40s, and SD45s) | |
| 25 | SD40-2T | UP 4794-4831 (rebuilt from former SP SD45T-2s) | |
| 7 | SD90AC | UP 8515-8521 | |
| Retired (347) | 1 | B23-7 | UP 128 |
| 1 | B30-7 | SP 7779 | |
| 1 | B36-7 | SP 7770 | |
| 61 | C30-7 | UP 401, 402, 403, 404, 406, 408, 410, 411, 415, 416, 417, 419, 425, 433, 437, 438, 439, 461, 462, 468, 477, 478, 479, 490, 496, 497, 500, 502, 503, 505, 506, 507, 513, 516, 519, 520, 529, 2421, 2422, 2429, 2433, 2436, 2437, 2442, 2445, 2452, 2453, 2456, 2458, 2460, 2462, 2463, 2466, 2468, 2474 (wrecked in 1995), 2479, 2486, 2488, 2490, 2492, 2498 | |
| 2 | C36-7 | UP 2638, 2655 | |
| 1 | C36M | UP 592 (wrecked) | |
| 1 | C40-8 | UP 9117 (wrecked) | |
| 1 | C60AC | UP 7511 | |
| 3 | GP30 | D&RGW 3002, 3003, 3015 | |
| 3 | GP35M | SP 6313, 6316, 6317 | |
| 2 | GP35R | SSW 4201, 4203 | |
| 1 | GP38-2 | UP 2185 (wrecked) | |
| 2 | GP40 | D&RGW 3079, SP 3138 (ex D&RGW 3138) | |
| 1 | GP40-2 | D&RGW 3098 | |
| 1 | GP60 | SP 9609 (wrecked) | |
| 1 | GP7 | C&NW 4165 | |
| 1 | GP9 | C&NW 4328 | |
| 1 | GP9 | SP 3756 | |
| 1 | MP15AC | SP 2757 | |
| 1 | SD18 | C&NW 6646 | |
| 4 | SD35R | SP 2957, 2962, 2963, 2965 | |
| 2 | SD39 | SP 5298, 5316 | |
| 3 | SD40-2 | UP 3509, 3918, 4159 | |
| 3 | SD40-2 | UP 4240, 4253, 4302 (rebuilt to SD38-2R) | |
| 8 | SD40-2 | UP B4219, B4252, B4255, B4257, B4275, B4283, B4284, B4310 (rebuilt to SD38-2R) | |
| 1 | SD40M-2 | SP 8704 (wrecked) | |
| 18 | SD40R | SP 7303, 7315, 7324, 7329, 7330, 7340, 7341, 7343, 7344, 7351, 7361, 7366, 7368 (wrecked), 7369, 7372, 7375, 7381, 7384 | |
| 1 | SD40T-2 | SP 8391 | |
| 1 | SD45 | D&RGW 5324 | |
| 60 | SD45R | SP 7400, 7402, 7405, 7406, 7407, 7408, 7409, 7411, 7416, 7417, 7421, 7422, 7423, 7424, 7425, 7428, 7434, 7435, 7436, 7438, 7441, 7442, 7446, 7447, 7451, 7453, 7455, 7456, 7458, 7465, 7467, 7469, 7470, 7471, 7473, 7476, 7479, 7480, 7485, 7486, 7487, 7502, 7503, 7504, 7505, 7506, 7507, 7511, 7512, 7514, 7515, 7516, 7518, 7520, 7521, 7529, 7531, 7533, 7534, 7535 | |
| 45 | SD45T-2 | SP 9189, 9194, 9195, 9213, 9218, 9232, 9243, 9245, 9250, 9254, 9260, 9273, 9282, 9286, 9294, 9300, 9308, 9314, 9317, 9319, 9328, 9330, 9333, 9337, 9338, 9345, 9346, 9347, 9348, 9351, 9353, 9359, 9362, 9367, 9373, 9375, 9376, 9385, 9391, 9392, 9395, 9398, 9400, 9401, 9402 | |
| 11 | SD45T-2 | SSW 9264, 9265, 9270, 9281, 9289, 9291, 9298, 9371, 9374, 9378, 9383 | |
| 19 | SD45T-2R | SP 6796, 6798, 6802, 6804, 6805, 6807, 6809, 6811, 6812, 6814, 6816, 6817, 6818, 6820, 6822, 6824, 6825, 6827, 6828 | |
| 13 | SD45T-2R | SSW 6869, 6872, 6875, 6876, 6879, 6880, 6883, 6884, 6887, 6888, 6889, 6890, 6892 | |
| 1 | SD50 | UP 5045 (wrecked) | |
| 1 | SD7 | SP 1534 | |
| 56 | SW1500 | SP 2451, 2452, 2459, 2460, 2464, 2467, 2469, 2470, 2472, 2477, 2478, 2496, 2498, 2500, 2501, 2503, 2510, 2524, 2527, 2531, 2535, 2537, 2539, 2540, 2542, 2543, 2545, 2550, 2558, 2563, 2570, 2593, 2599, 2600, 2601, 2602, 2605, 2609, 2614, 2616, 2621, 2627, 2631, 2633, 2638, 2641, 2644, 2651, 2669, 2671, 2672, 2674, 2678, 2679, 2680, 2687 | |
| 9 | SW1500 | SSW 2482, 2514, 2519, 2580, 2581, 2583, 2584, 2586, 2589 | |
| 4 | SW1500 | UP 1004 (wrecked), 1072, 1146, 1172 |
On November 19, 1999, UP announced that they would renumber over 3,700 locomotives to accommodate the arrival in 2000 of 1,000 new SD70Ms. The renumber plan was finalized by late December 1999.
2000
(6,874 total diesel on 1 January 2000)
| Added (484) | 120 | C44AC | UP 6430-6549 |
| 26 | C60AC | UP 7511 (2nd), 7555-7579 | |
| 1 | GP38-2 | UP 347 (leased from Helm) | |
| 10 | SD38-2 | UPY 848-857 (rebuilt from former MP SD40-2s) | |
| 285 | SD70M | UP 4000-4284 | |
| 42 | SD90AC | UP 8500, 8514, 8522-8561 | |
| Retired (385) | 8 | B30-7 | SP 7790, 7826, 7830, 7842, 7858, 7867, 7876, 7879 |
| 1 | B30-7 | SSW 7797 | |
| 6 | B36-7 | SP 7754, 7756, 7758, 7759, 7763, 7764 | |
| 1 | B36-7 | UP 396 | |
| 27 | C30-7 | UP 405, 407, 409, 414, 418, 420, 423, 447, 458, 464, 470, 495, 499, 501, 504, 509, 510, 511, 512, 514, 515, 517, 521, 522, 523, 524, 527 | |
| 11 | C30-7 | UP 2430, 2434, 2438, 2443, 2444, 2454, 2457, 2470, 2487, 2494, 2499 | |
| 36 | C36M | UP 564-599 | |
| 1 | GP38 | UP 1981 (former MKT) | |
| 1 | GP38AC | UP 1796 (former MKT) | |
| 3 | GP38AC | UP 1985, 1998, 1999 (former MKT) | |
| 14 | GP38-2 | C&NW 4612, 4613, 4614, 4615, 4616, 4617, 4618, 4619, 4620, 4621, 4622, 4623, 4624, 4625 | |
| 12 | GP39-2 | UP 2367, 2368, 2369, 2370, 2371, 2372, 2373, 2374, 2375, 2376, 2377, 2378 | |
| 15 | GP40 | C&NW 5501, 5503, 5508, 5509, 5510, 5512, 5515, 5516, 5522, 5528, 5529, 5531, 5533, 5534, 5535 | |
| 6 | GP40 | D&RGW 3072, 3088, 3132, 3136, 3149, 3151 | |
| 1 | GP40 | UP 652 (former C&NW) | |
| 3 | GP40 | UP 667, 670, 671 (former MKT) | |
| 1 | GP40 | UP 744 (former D&RGW) | |
| 9 | GP40-2 | SP 7240, 7241, 7242, 7243, 7244, 7245, 7246, 7255, 7264 | |
| 21 | GP40-2 | SSW 7248, 7249, 7250, 7251, 7252, 7253, 7254, 7256, 7257, 7259, 7260, 7261, 7262, 7263, 7265, 7266, 7269, 7270, 7271, 7272, 7273 | |
| 2 | GP40-2 | UP 5217, 5236 | |
| 1 | GP60 | SSW 9635 | |
| 4 | GP7R | C&NW 4120, 4190, 4307, 4324 | |
| 2 | SD40-2 | C&NW 6898, 6934 | |
| 1 | SD40-2 | UP 3092 (ex-C&NW) | |
| 43 | SD40-2 | UP 3308, 3332, 3352, 3357, 3365, 3379, 3387, 3423, 3442, 3476, 3485, 3504, 3517, 3518, 3526, 3528, 3535, 3545, 3560, 3561, 3567, 3575, 3588, 3603, 3604, 3606, 3610, 3618, 3622, 3634, 3674, 3704, 3715, 3720, 3729, 3730, 3740, 3745, 3760, 3767, 3770, 3776, 3793 | |
| 2 | SD40-2 | UP B3431, B3455 | |
| 4 | SD40-2 | UP 3810, 3815, 3819, 3843 (ex-MKT) | |
| 9 | SD40-2 | UP 3913, 3928, 3937, 3942, 3945, 3948, 3949, 3951, 3963 (ex-MP) | |
| 4 | SD40-2 | UP 4161, 4208, 4273, 4318 (ex-MP) | |
| 4 | SD40-2 | UP 4126, 4135, 4307, 4319 (rebuilt to SD38-2) | |
| 15 | SD40-2 | UP B4122, B4124, B4163, B4221, B4225, B4231, B4241, B4265, B4287, B4294, B4296, B4297, B4299, B4311, B4313 | |
| 6 | SD40-2 | UP B4116, B4244, B4247, B4251, B4267, B4300 (rebuilt to SD38-2) | |
| 8 | SD40-2 | UP 8933, 8957, 9911, 9916, 9920, 9934, 9941 | |
| 14 | SD40R | SP 7304, 7305, 7311, 7319, 7335, 7345, 7350, 7352, 7360, 7364, 7370, 7376, 7378, 7385 | |
| 5 | SD40T-2 | D&RGW 5386, 5391, 5398, 5404, 5406 | |
| 17 | SD40T-2 | SP 8242, 8247, 8250, 8299, 8314, 8329, 8331, 8337, 8354, 8360, SSW 8372, SP 8377, 8506, 8508, 8522, 8539, 8572 | |
| 1 | SD40T-2 | SSW 8372 | |
| 8 | SD45T-2R | SP 6795, 6797, 6799, 6800, 6801, 6803, 6806, 6821 | |
| 5 | SD45T-2R | SSW 6870, 6873, 6877, 6885, 6886 | |
| 16 | SD45T-2 | SP 9197, 9207, 9226, 9234, 9239, 9242, 9256, 9288, 9315, 9335, 9342, 9344, 9365, 9366, 9386, 9388 | |
| 8 | SD45T-2 | SSW 9262, 9295, 9299, 9372, 9393, 9396, 9403, 9404 | |
| 1 | SD45T-2 | UP 4912 | |
| 18 | SD45R | SP 7412, 7420, 7432, 7433, 7440, 7443, 7444, 7454, 7463, 7475, 7482, 7488, 7500, 7508, 7517, 7526, 7530, 7532 | |
| 10 | SD50 | UP 5004, 5008, 5026, 5034, 5040, 5047, 5050, 5052, 5058, 5059 | |
| 1 | SW1500 | SP 2525 | |
| 6 | Yard Slug | UP S14, S15, S20, S24, S25, S26 (not included in total) | |
| 3 | Yard Slug | SP 1010, 1012, 1013 (not included in total) | |
| 5 | Road Slug | SP 1600, 1601, 1608, 1609, 1613 (not included in total) |
2001
(6,973 total diesel on 1 January 2001)
(Total does not include two steam locomotives held in the Heritage Fleet.)
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