Union Pacific Diesel Locomotives
Early Merger Era -- 1983 to 1994 (MP, WP, MKT)
(Return to Union Pacific Diesel Index Page)
| Road Number |
Previous Number |
Pre-Merger Number |
Model | Qty | In-Service Years |
Notes |
| 20 | RD20 | 1 | 1993 | Demonstrator leased from Republic Locomotive Works. | ||
| 1-50 | 3600-3649 | SD45 | 50 | 1978-1987 | Renumbered from 3600-3649 in 1978-1979 | |
| 60-65 | SD45 Sulzer | 6 | 1980-1983 | Rebuilt from SD45s | ||
| 50-79 | MP 3500-3529 | GP50 | 30 | 1983-1988 | 12 units in series; renumbered to 960-989 in 1988 | |
| 90-95 | 9000-9005 | GP40X | 6 | 1985-1990 | Renumbered to UP 954-959 in 1989-1990 | |
| 99 | 3999 | SD24M | 1 | 1978-1985 | Renumbered from 3999 in 1978 | |
| 100-129 | 700-729 | GP7 | 30 | 1953-1984 | Renumbered from 700-729 in 1953 | |
| 130-204 | GP9 | 75 | 1954-1985 | 204 renumbered to 249 in 1954 | ||
| 205-244 | GP9 | 40 | 1954-1985 | No dynamic braking | ||
| 245-249 | GP9 | 5 | 1954-1984 | Leased to Camas Prairie Railroad | ||
| 250-294 | GP9 | 45 | 1954-1985 | |||
| 295-299 | GP9 | 5 | 1954-1985 | Equipped with steam generators | ||
| 100-184 | MP 4600-4684 | B23-7 | 81 | 1983- | Numbered as UP 100-166, 170-184; no UP 136 (MP 4636 retired after merger) | |
| 200-254 | MP 4800-4854 | B30-7A | 55 | 1983- | ||
| 257-259 | MP 4667-4669 | B23-7M | 3 | 1983- | ||
| 300-349 | GP9 | 50 | 1957-1985 | Some units rebuilt to 2000 horsepower | ||
| 400-429 | SD24 | 30 | 1959-1985 | |||
| 445-447 | EMD 7200-7202 | SD24 | 3 | 1961-1985 | Former demonstrators | |
| 470-499 | 700-729 | GP20 | 30 | 1962-1984 | Renumbered from 700-729 in 1962-1963 | |
| 500-516 | MKT 194-210 | GP40 | 17 | 1988-1992 | ||
| 534-571 | MP 4500-4537 | U23B | 38 | 1983-1994 | ||
| 581-599 | MKT 211-230 | GP40 | 19 | 1988-1998 | ||
| 600-650 | CRI&P 340-373, 4700-4719 |
GP40 | 51 | 1980-1992 | 30 units renumbered to UP/MP | |
| 651-665 | WP 3501-3516 | GP40 | 15 | 1983-1993 | ||
| 666-691 | WP 3517-3544 | GP40 | 26 | 1983-1986 | Seven units renumbered to UP | |
| 667-684 | MKT 231-248 | GP40 | 18 | 1988- | UP 684 is ex UP 666, originally MKT 231; renumbered to 9951-9966 | |
| 700-735 | GP30 | 36 | 1963-1989 | |||
| 700B-726B | GP30B | 27 | 1963-1983 | |||
| 727B-739B | GP30B | 13 | 1963-1983 | Steam generator equipped | ||
| 740-763 | GP35 | 24 | 1964-1985 | Including two former demonstrators | ||
| 782-799 | WP 3001-3022 | GP35 | 17 | 1983-1993 | ||
| 800-874 | GP30 | 75 | 1962-1989 | |||
| 844 | Steam 4-8-4 |
1 | 1944- | Heritage fleet | ||
| 850-887 | GP40 | 37 | 1989-1999 | Leased from Helm; rebuilt to GP38-3 as UP 2527 series | ||
| 900-905 | WP 3545-3550 | GP40-2 | 6 | 1983-1991 | Rebuilt to slug control units, renumbered to 3002-3007 | |
| 906-914 | WP 3551-3559 | GP40-2 | 9 | 1983- | Renumbered to UP 1461-1469 | |
| 954-959 | 90-95 | GP40X | 6 | 1989-2001 | Renumbered to UP 5500-5505 | |
| 949 | E9A | 1 | 1990- | Heritage fleet; rebuilt by VMV in 1993 | ||
| 951 | E9A | 1 | 1955- | Heritage fleet; rebuilt by VMV in 1993 | ||
| 963B | ARR P-7 | E9B | 1 | 1990- | Heritage fleet; rebuilt by VMV in 1993 | |
| 1000-1095 | NW2 | 96 | 1939-1985 | 1000 was former EMC demonstrator 889 | ||
| 1000-1014 | 1275-1284 | Ex P&LE | MP15DC | 15 | 1985-1987 | Renumbered to UP 1300-1314 |
| 1200, 1201 | 1848, 1839 | SW10 | 2 | 1980-1997 | 1201 renumbered to 1244 | |
| 1202-1274 | SW10 | 73 | 1980-1998 | Rebuilt from UP SW7s, UP, MP, and WP SW9s, UP TR5As; UP 1243 in heritage fleet after 1993 (renumbered to UP 96 in 1998) | ||
| 1275-1284 | P&LE 1577-1582 | MP15DC | 15 | 1985 | Renumbered to UP 1000-1014 | |
| 1298, 1299 | MK1200G | 2 | 1994-1998 | Natural gas fuel | ||
| 1300-1314 | P&LE 1574-1598 | MP15DC | 15 | 1985- | Renumbered to UPY 1300-1314 | |
| 1315-1317 | 1501-1503 | WP 1501-1503 | SW1500 | 3 | 1987- | Renumbered to UPY 1040-1042 |
| 1318-1321 | MP 1518-1521 | SW1500 | 4 | 1983-1994 | ||
| 1322, 1323 | MKT 50, 51 | SW1500 | 2 | 1988-1989 | ||
| 1324-1327 | MKT 52-55 | SW1500 | 4 | 1988-2001 | Renumbered to UPY 1036-1039 | |
| 1329 | NHL 1013 | MP15AC | 1 | 1989-1994 | Returned to lessor; leased again as UP 1488 | |
| 1330-1392 | MP 1530-1554, MP 1356-1392 |
MP15DC | 62 | 1983- | UP 1355 blank and not used; renumbered to UPY 1330-1392 | |
| 1393-1396 | MKT 56-59 | MP15AC | 4 | 1988-2001 | Renumbered to UPY 1393-1396 | |
| 1397-1428 | SOO 1500-1531 | MP15AC | 32 | 1993- | Renumbered to UPY 1397-1428 | |
| 1400-1409 | SDP35 | 10 | 1965-1985 | |||
| 1500 | PL1500 | 1 | 1993 | Demonstrator leased from Peoria Locomotive Works. | ||
| 1501-1503 | WP 1501-1503 | SW1500 | 3 | 1983-1988 | Renumbered to 1315-1317 | |
| 1555-1714 | MP 1555-1714 | GP15-1 | 160 | 1983- | Renumbered to UPY 555-714 | |
| 1715-1744 | MP 1715-1744 | GP15AC | 30 | 1983-2001 | Renumbered to UPY 715-744 | |
| 1800-1824 | SW7 | 25 | 1950-1985 | 18 units rebuilt to SW10s in 1982-1984 | ||
| 1825-1866 | SW9 | 42 | 1953-1984 | 36 units rebuilt to SW10s in 1979-1984 | ||
| 1870-1877 | TR5A | 8 | 1951-1984 | Seven units rebuilt to SW10s in 1981-1984 | ||
| 1870B-1877B | TR5B | 8 | 1951-1984 | |||
| 1800-1828 | MP 2009-2073 | GP38-2 | 29 | 1989- | Renumbered to 300-328 | |
| 1974 | NHL 7789 | GP38-2 | 1 | 1989-1994 | Later rebuilt to UP GP38-3 2415 | |
| 1975-1978 | MKT 300-303 | GP38 | 4 | 1988-1996 | ||
| 1979-1981 | MKT 322-324 | GP38 | 3 | 1988-2001 | ||
| 1982-1999 | MKT 325-343 | GP38AC | 18 | 1988- | Total of 18 units; five units retired by UP; six units renumbered to 1783-1799 group; renumbered to 283-299 | |
| 2000-2059 | GP38-2 | 60 | 1974- | Renumbered to 500-559 | ||
| 2060 | MP 2060 | GP38-2 | 1 | 1986-1988 | Assigned UP 2386, not renumbered | |
| 2060-2063 | MKT 318-321 | GP38-2 | 4 | 1988- | Renumbered to 560-563 | |
| 2076-2108 | MP 2074-2110 | GP38-2 | 37 | 1983- | 22 units retired by UP; remaining 15 units renumbered to 349-363 | |
| 2111-2237, 2238-2334 |
MP 2111-2334 | GP38-2 | 224 | 1983- | Renumbered to 611-834 | |
| 2335-2379 | MP 2009-2053 | GP38-2 | 45 | 1983-1987 | Returned to lessor in 1987; leased again by UP as part of UP 1800-1829 in 1989 | |
| 2335-2348 | MKT 304-317 | GP38-2 | 14 | 1988- | Renumbered to 835-843, 279, and 845-848 | |
| 2350-2358 | MKT 380-388 | GP39-2 | 9 | 1988- | Renumbered to 1200-1208 | |
| 2359-2378 | MKT 360-379 | GP39-2 | 20 | 1988- | Renumbered to 1209-1228 | |
| 2380-2389 | MP 2054-2073 | GP38-2 | 20 | 1983-1988 | Returned to lessor in 1988; leased again by UP as part of UP 1800-1828 group | |
| 2400-2539 | 2400-2414 renumbered from 2960-2974 |
C30-7 | 140 | 1978-2001 | 86 units renumbered to 400-531 series; five units renumbered to 7874-7941 series | |
| 2810-2959 | U30C | 150 | 1972-1989 | |||
| 3000-3039 | SD40 | 40 | 1966-1992 | |||
| 3000, 3001 | MKT 226,227 | GP40 | 2 | 1988- | ||
| 3002-3007 | 900-905 | WP 3545-3550 | GP40-2 | 6 | 1990- | Renumbered from 900-905; renumbered to 1535-1540 |
| 3040-3047 | EMD 434A-434H | SD40X | 8 | 1966-1992 | ||
| 3048-3082 | SD40 | 35 | 1966-1992 | |||
| 3083-3122 | SD40 | 40 | 1971-1992 | |||
| 3123-3399, 3400-3804 |
SD40-2 | 682 | 1972- | UP 3316, 3325, 3339 renumbered to 3100-3102 in 1996 | ||
| 3805-3808 | SD40-2S | 4 | 1980- | |||
| 3809-3844 | MKT 600-636 | SD40-2 | 36 | 1988- | ||
| 3900-3904 | MP 6000-6004 | SD40-2 | 5 | 1983-1994 | ||
| 3905-3973 | MP 6005-6073 | SD40-2 | 69 | 1983- | ||
| 3985 | Steam 4-6-6-4 |
1 | 1943- | Heritage fleet | ||
| 4000-4033 | MP 3000-3033 | SD40 | 34 | 1983-1992 | ||
| 4034-4053 | MP 3034-3053 | SD40 | 20 | 1983-1984 | Not renumbered | |
| 4054-4069 | MP 3054-3069 | SD40 | 16 | 1983-1992 | ||
| 4070-4089 | MP 3070-3089 | SD40 | 20 | 1983-1986 | Not renumbered | |
| 4090-4114 | MP 3090-3114 | SD40-2 | 25 | 1983-1994 | ||
| 4115-4163 | MP 3115-3163 | SD40-2 | 49 | 1983- | No UP 4130 (MP 3130 retired after merger); renumbered to 8927-8999 series and 9882-9950 series; seven units rebuilt to 2800 series SD38-2s | |
| 4164-4201 | MP 3164-3201 | SD40-2 | 38 | 1983-1990 | ||
| 4202-4321 | MP 3202-3321 | SD40-2 | 120 | 1983-2001 | Renumbered to 8927-8999 series and 9882-9950 series; 28 units rebuilt to 2800 series SD38-2s | |
| 5000-5059 | MP 5000-5059 | SD50 | 60 | 1983- | UP 5001 renumbered to 9881 as part of UP 9980-9939 series; renumbered back to UP 5001 | |
| 6000-6084 | SD60 | 85 | 1986- | Renumbered to 2155-2239 | ||
| 6085-6365 | SD60M | 281 | 1988- | Renumbered to 2240-2520 | ||
| 6900-6946 | DDA40X | 47 | 1969-1985 | 6936 in heritage fleet after 1985 | ||
| 9000-9059 | MP 9000-9059 | C36-7 | 60 | 1985-2001 | 27 units renumbered to 2600 series; 22 units renumbered to 600 series; renumbered to 7942 series | |
| 9100-9355 | C40-8 | 256 | 1987- | |||
| 9356-9405 | C40-8W | 50 | 1989- | |||
| 9406-9559 | C41-8W | 154 | 1990- | |||
| 9700-9739 | C44-9W | 40 | 1994- | |||
| 9997-9999 | C44AC | 3 | 1994- | Renumbered to 6700-6702 |
###