Union Pacific Railroad
Roster of Diesel and Turbine Locomotives, 1934-2009
This page was last updated on July 20, 2012.
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Roster Listing
Alco FA-1 -- 24 units
1500 horsepower; B-B trucks; 241,700 pounds operating weight
| Road Number |
Builder Date |
Builder Number |
Notes |
| UP 1500A | Jun 1947 | 75283 | Renumbered to UP 1600 in April 1948. |
| UP 1501A | Jun 1947 | 75284 | Renumbered to UP 1601 in April 1948. |
| UP 1502A | Jun 1947 | 75285 | Renumbered to UP 1602 in April 1948. |
| UP 1503A | Jul 1947 | 75292 | Renumbered to UP 1603 in June 1948. |
| UP 1504A | Jul 1947 | 75293 | Renumbered to UP 1604 in March 1948. |
| UP 1505A | Jul 1947 | 75294 | Renumbered to UP 1605 in March 1948. |
| UP 1506A | Sep 1947 | 75295 | Renumbered to UP 1606 in August 1948. |
| UP 1507A | Sep 1947 | 75300 | Renumbered to UP 1607 in March 1948. |
| UP 1508A | Sep 1947 | 75301 | Renumbered to UP 1608 in June 1948. |
| UP 1509A | Sep 1947 | 75306 | Renumbered to UP 1609 in May 1948. |
| UP 1510A | Oct 1947 | 75307 | Renumbered to UP 1610 in August 1948. |
| UP 1511A | Oct 1947 | 75308 | Renumbered to UP 1611 in March 1948. |
| UP 1512A | Oct 1947 | 75309 | Renumbered to UP 1612 in March 1948. |
| UP 1513A | Oct 1947 | 75314 | Renumbered to UP 1613 in August 1948. |
| UP 1514A | Nov 1947 | 75414 | Renumbered to UP 1614 in May 1948. |
| UP 1515A | Nov 1947 | 75415 | Renumbered to UP 1615 in September 1948. |
| UP 1516A | Nov 1947 | 75416 | Renumbered to UP 1616 in October 1948. |
| UP 1517A | Nov 1947 | 75421 | Renumbered to UP 1617 in March 1948. |
| UP 1518A | Nov 1947 | 75422 | Renumbered to UP 1618 in April 1948. |
| UP 1519A | Nov 1947 | 75423 | Renumbered to UP 1619 in July 1948. |
| UP 1520A | Dec 1947 | 75424 | Renumbered to UP 1620 in July 1948. |
| UP 1521A | Dec 1947 | 75427 | Renumbered to UP 1621 in July 1948. |
| UP 1522A | Dec 1947 | 75286 | Renumbered to UP 1622 in March 1948. |
| UP 1523A | Dec 1947 | 75287 | Renumbered to UP 1623 in October 1948. |
General Notes:
- UP 1500A-1513A and 1522A, 1523A had Alco order number S-3030.
- UP 1514A-1521A had Alco order number S-3038.
Alco FB-1 -- 18 units
1500 horsepower; B-B trucks; 234,800 pounds operating weight
| Road Number |
Builder Date |
Builder Number |
Notes |
| UP 1524B | Jun 1947 | 75439 | Renumbered to UP 1600B in April 1948. |
| UP 1525B | Jun 1947 | 75440 | Renumbered to UP 1600C in May 1948. |
| UP 1526B | Jun 1947 | 75441 | Renumbered to UP 1602B in March 1948. |
| UP 1527B | Jul 1947 | 75444 | Renumbered to UP 1602C in March 1948. |
| UP 1528B | Jul 1947 | 75445 | Renumbered to UP 1604B in July 1948. |
| UP 1529B | Aug 1947 | 75446 | Renumbered to UP 1604C in March 1948. |
| UP 1530B | Sep 1947 | 75447 | Renumbered to UP 1606B in August 1948. |
| UP 1531B | Sep 1947 | 75452 | Renumbered to UP 1606C in August 1948. |
| UP 1532B | Oct 1947 | 75453 | Renumbered to UP 1608B in March 1948. |
| UP 1533B | Nov 1947 | 75585 | Renumbered to UP 1608C in March 1948. |
| UP 1534B | Nov 1947 | 75586 | Renumbered to UP 1610B in September 1948. |
| UP 1535B | Nov 1947 | 75589 | Renumbered to UP 1610C in March 1948. |
| UP 1536B | Oct 1947 | 75590 | Renumbered to UP 1612B in September 1948. |
| UP 1537B | Nov 1947 | 75591 | Renumbered to UP 1612C in September 1948. |
| UP 1538B | Nov 1947 | 75592 | Renumbered to UP 1614B in July 1948. |
| UP 1539B | Dec 1947 | 75596 | Renumbered to UP 1614C in July 1948. |
| UP 1540B | Feb 1948 | 75755 | Renumbered to UP 1616B in February 1948. |
| UP 1541B | Feb 1948 | 75756 | Renumbered to UP 1616C in February 1948. |
General Notes:
- UP 1524B-1532B had Alco order number S-3039.
- UP 1533B-1539B had Alco order number S-3048.
- UP 1540B, 1541B had Alco order number S-3055.
Alco FA-1 -- 2 units
1500 horsepower; B-B trucks; 241,700 pounds operating weight
| Road Number |
Builder Date |
Builder Number |
Notes |
| UP 1542A | Feb 1948 | 75707 | Renumbered to UP 1624 in February 1948. |
| UP 1543A | Feb 1948 | 75708 | Renumbered to UP 1625 in February 1948. |
General Notes:
- UP 1542A, 1543A had Alco order number S-3054.
EMD F3A -- 29 units
1500 horsepower; B-B trucks; 247,400 pounds operating weight
| Road Number |
First Number |
Second Number |
Builder Date |
Builder Number |
Date Retired |
Notes |
| UP 1500 | UP 1462 | Sep 1948 | 6713 | Apr 1958 | Rebuilt to F9A 509 in July 1958. | |
| UP 1501 | UP 1463 | Sep 1948 | 6714 | Jun 1958 | Rebuilt to F9A 523 in September 1958. | |
| UP 1502 | UP 1461 | Sep 1948 | 6335 | Nov 1958 | Rebuilt to F9A 531 in November 1958. | |
| UP 1503 | UP 1460 | Sep 1948 | 6334 | Jun 1958 | Rebuilt to F9A 520 in August 1958. | |
| UP 1504 | UP 1459 | Sep 1948 | 6333 | Dec 1951 | Wrecked on 25 November 1951 at Orchard, Idaho; rebuilt by EMD to F7A 1464 in April 1952. | |
| UP 1505 | UP 1458 | Sep 1948 | 6332 | Jul 1958 | Rebuilt to F9A 524 in September 1958. | |
| UP 1506 | UP 1457 | Sep 1948 | 6331 | Apr 1959 | Rebuilt to F9A 536 in April 1959. | |
| UP 1507 | UP 1456 | Sep 1948 | 5721 | Dec 1958 | Rebuilt to F9A 530 in February 1959. | |
| UP 1508 | UP 1455 | Jul 1948 | 5720 | Mar 1958 | Rebuilt to F9A 511 in June 1958. | |
| UP 1509 | UP 1454 | Jul 1948 | 5719 | May 1958 | Rebuilt to F9A 517 in August 1958. | |
| UP 1510 | UP 1453 | Jul 1948 | 5718 | Mar 1958 | Rebuilt to F9A 503 in May 1958. | |
| UP 1511 | UP 1452 | Jul 1948 | 5717 | Apr 1958 | Rebuilt to F9A 514 in July 1958. | |
| UP 1512 | UP 1451 | Jul 1948 | 5716 | Jan 1959 | Rebuilt to F9A 528 in January 1959. | |
| UP 1513 | UP 1431A | UP 1431 | Mar 1948 | 4636 | Mar 1958 | Rebuilt to F9A 510 in June 1958. |
| UP 1514 | UP 1400A | UP 1400 | May 1947 | 4601 | Mar 1958 | Rebuilt to F9A 502 in June 1958. |
| UP 1515 | UP 1422A | UP 1422 | Jan 1948 | 4627 | Mar 1958 | Rebuilt to F9A 505 in June 1958. |
| UP 1516 | UP 1408A | UP 1408 | Oct 1947 | 4613 | Dec 1958 | Rebuilt to F9A 540 in December 1958. |
| UP 1517 | UP 1406A | UP 1406 | Oct 1947 | 4611 | Mar 1958 | Rebuilt to F9A 507 in May 1958. |
| UP 1518 | UP 1411A | UP 1411 | Jan 1948 | 4616 | May 1958 | Rebuilt to F9A 518 in August 1958. |
| UP 1519 | UP 1412A | UP 1412 | Jan 1948 | 4617 | Jul 1958 | Rebuilt to F9A 539 in September 1958. |
| UP 1520 | UP 1414A | UP 1414 | Jan 1948 | 4619 | Nov 1958 | Rebuilt to F9A 527 in November 1958. |
| UP 1521 | UP 1415A | UP 1415 | Jan 1948 | 4620 | Jan 1959 | Rebuilt to F9A 534 in January 1959. |
| UP 1522 | UP 1416A | UP 1416 | Jan 1948 | 4621 | Jun 1958 | Rebuilt to F9A 522 in August 1958. |
| UP 1523 | UP 1423A | UP 1423 | Jan 1948 | 4628 | Aug 1958 | Rebuilt to F9A 526 in October 1958. |
| UP 1524 | UP 1424A | UP 1424 | Feb 1948 | 4629 | Jun 1958 | Rebuilt to F9A 521 in August 1958. |
| UP 1525 | UP 1436A | UP 1436 | Mar 1948 | 4641 | Mar 1958 | Rebuilt to F9A 500 in May 1958. |
| UP 1526 | UP 1440A | UP 1440 | Mar 1948 | 4645 | Jan 1959 | Rebuilt to F9A 529 in January 1959. |
| UP 1527 | UP 1442 | Apr 1948 | 5707 | Mar 1958 | Rebuilt to F9A 504 in May 1958. | |
| UP 1528 | UP 1443 | Apr 1948 | 5708 | Apr 1958 | Rebuilt to F9A 519 in June 1958. |
General Notes:
- Built as 1400 series units; regeared from 62:15 gear ratio to 65:12 gear ratio and numbered to 1500 series in 1950 and 1951; assigned to the Northwestern District; many units were later converted to F7 specifications by Union Pacific.
- Twenty-eight units (excluding UP 1504) were retired and rebuilt to 500 series F9As by EMD; completely remanufactured, installing a new 16-567C engine and other F9 components into the former F3 car bodies; both Union Pacific and EMD considered the new units to be F9s, not rebuilt F3s.
EMD F3B -- 31 units
1500 horsepower; B-B trucks; 247,300 pounds operating weight
| Road Number |
First Number |
Second Number |
Builder Date |
Builder Number |
Date Retired |
Notes |
| UP 1500B | UP 1442B | Apr 1948 | 6356 | Jun 1958 | Rebuilt to F9B 520B in August 1958. | |
| UP 1500C | UP 1442C | Apr 1948 | 6357 | Nov 1958 | Rebuilt to F9B 525B in November 1958. | |
| UP 1502B | UP 1444B | Apr 1948 | 6358 | Mar 1958 | Rebuilt to F9B 505B in June 1958. | |
| UP 1502C | UP 1444C | Apr 1948 | 6359 | Jun 1958 | Rebuilt to F9B 524B in August 1958. | |
| UP 1504B | UP 1446B | May 1948 | 6360 | Jun 1958 | Rebuilt to F9B 522B in August 1958. | |
| UP 1504C | UP 1446C | May 1948 | 6361 | Aug 1958 | Rebuilt to F9B 526B in October 1958. | |
| UP 1506B | UP 1448B | Jul 1948 | 6362 | Apr 1958 | Rebuilt to F9B 510B in July 1958. | |
| UP 1506C | UP 1448C | Jul 1948 | 6363 | May 1958 | Rebuilt to F9B 518B in August 1958. | |
| UP 1508B | UP 1450B | Jul 1948 | 6364 | Nov 1958 | Rebuilt to F9B 527B in November 1958. | |
| UP 1508C | UP 1450C | Jul 1948 | 6365 | Feb 1959 | Rebuilt to F9B 541B in February 1959. | |
| UP 1510B | UP 1452B | Jul 1948 | 6366 | Mar 1958 | Rebuilt to F9B 506B in June 1958. | |
| UP 1510C | UP 1452C | Jul 1948 | 6367 | Feb 1959 | Rebuilt to F9B 539B in February 1959. | |
| UP 1512B | UP 1454B | Jul 1948 | 6368 | Jan 1959 | Rebuilt to F9B 538B in January 1959. | |
| UP 1512C | UP 1454C | Jul 1948 | 6369 | Apr 1958 | Rebuilt to F9B 512B in July 1958. | |
| UP 1514B | UP 1456B | Sep 1948 | 6370 | Mar 1959 | Rebuilt to F9B 540B in March 1959. | |
| UP 1514C | UP 1456C | Sep 1948 | 6371 | Apr 1959 | Rebuilt to F9B 537B in April 1959. | |
| UP 1516B | UP 1458B | Sep 1948 | 6372 | Mar 1958 | Rebuilt to F9B 501B in May 1958. | |
| UP 1516C | UP 1458C | Sep 1948 | 6373 | Nov 1958 | Rebuilt to F9B 536B in November 1958. | |
| UP 1518B | UP 1428B | Mar 1948 | 4671 | May 1958 | Rebuilt to F9B 519B in August 1958. | |
| UP 1518C | UP 1426C | Feb 1948 | 4670 | Mar 1958 | Rebuilt to F9B 508B in June 1958. | |
| UP 1520B | UP 1426B | Feb 1948 | 4669 | Jan 1959 | Rebuilt to F9B 533B in January 1959. | |
| UP 1520C | UP 1424C | Feb 1948 | 4668 | Aug 1958 | Rebuilt to F9B 530B in October 1958. | |
| UP 1522B | UP 1424B | Feb 1948 | 4667 | Mar 1959 | Rebuilt to F9B 529B, Mar 1959. | |
| UP 1522C | UP 1422B | UP 1464B | Feb 1948 | 4665 | Jun 1958 | Rebuilt to F9B 523B in September 1958. |
| UP 1524B | UP 1420B | UP 1462B | Jan 1948 | 4663 | Apr 1958 | Rebuilt to F9B 513B in June 1958. |
| UP 1524C | UP 1420C | UP 1463B | Jan 1948 | 4664 | Mar 1958 | Rebuilt to F9B 504B in May 1958. |
| UP 1526B | UP 1418B | UP 1460B | Jan 1948 | 4661 | Mar 1958 | Rebuilt to F9B 500B in May 1958. |
| UP 1526C | UP 1404C | UP 1447B | Oct 1947 | 4648 | Mar 1958 | Rebuilt to F9B 503B in May 1958. |
| UP 1528B | UP 1406B | UP 1448B | Oct 1947 | 4649 | Apr 1958 | Rebuilt to F9B 517B in August 1958. |
| UP 1528C | UP 1406C | UP 1449B | Oct 1947 | 4650 | Apr 1958 | Rebuilt to F9B 516B in August 1958. |
| UP 1530B | UP 1414B | UP 1456B | Jan 1948 | 4657 | Dec 1951 | Wrecked on 25 November 1951 at Orchard, Idaho; rebuilt by EMD to F7B 1464B in March 1952. |
General Notes:
- Built as 1400 series units; regeared from 62:15 gear ratio to 65:12 gear ratio and renumbered to 1500 series in 1950 and 1951; assigned to the Northwestern District; many units were later converted to F7 specifications by Union Pacific.
- Thirty units (excluding UP 1530B) were retired and rebuilt to 500 series F9Bs by EMD; completely remanufactured, installing a new 16-567C engine and other F9 components into the former F3 car bodies; both Union Pacific and EMD considered the new units to be F9s, not rebuilt F3s.
Peoria Locomotive Works (PLW) PL1500 -- 1 unit
1500 horsepower; B-B trucks; 255,000 pounds operating weight
| Road Number |
Builder Date |
Builder Number |
Notes |
| UP 1500 | Jul 1992 | 92-7-1500 | Returned to PLW on 2 August 1993; delivered by UP to Georgetown Railroad, Georgetown, Texas. |
General Notes:
- Built by Peoria Locomotive Works at the shops of the Peoria & Pekin Union at East Peoria, Illinois
- Equipped with Caterpillar 3512DITA engine, EMD Flexicoil switching trucks, EMD D78B1 traction motors, and 62:15 gear ratio.
- Leased by UP on 12 April 1993 for 90-day evaluation period, assigned to switching service at Kansas City.
EMD SW1500 -- 3 units
1500 horsepower; B-B trucks; 258,800 pounds operating weight
| Road Number |
First Number |
Builder Date |
Builder Number |
Date To 1500 series |
1315 Series Number |
Date To 1315 Series |
| UP 1501 | WP 1501 | May 1973 | 72692-1 | 11 May 1984 | UP 1315 | 24 Nov 1988 |
| UP 1502 | WP 1502 | May 1973 | 72692-2 | Apr 1984 | UP 1316 | 1 Jun 1988 |
| UP 1503 | WP 1503 | May 1973 | 72692-3 | Apr 1984 | UP 1317 | 20 Aug 1987 |
General Notes:
- Total of three WP units went to UP at merger, numbered WP 1501-1503.
EMD F3A -- 14 units
1500 horsepower; B-B trucks; 233,600 pounds operating weight
| Road Number |
Builder Date |
Builder Number |
Date Retired |
Notes |
| UP 1550 | Oct 1948 | 6715 | Dec 1958 | Rebuilt to F9A 535 in December 1958. |
| UP 1551 | Oct 1948 | 6716 | Apr 1958 | Rebuilt to F9A 512 in July 1958. |
| UP 1552 | Nov 1948 | 6717 | Mar 1958 | Rebuilt to F9A 506 in June 1958. |
| UP 1553 | Nov 1948 | 6718 | Dec 1951 | Wrecked on 25 November 1951 at Orchard, Idaho; rebuilt by EMD to F7A 1465 in March 1952. |
| UP 1554 | Nov 1948 | 6719 | Apr 1958 | Rebuilt to F9A 516 in July 1958. |
| UP 1555 | Nov 1948 | 6720 | Mar 1959 | Rebuilt to F9A 533 in March 1959. |
| UP 1556 | Dec 1948 | 6721 | Mar 1959 | Rebuilt to F9A 532 in March 1959. |
| UP 1557 | Dec 1948 | 6722 | Apr 1958 | Rebuilt to F9A 508 in July 1958. |
| UP 1558 | Dec 1948 | 6723 | Feb 1959 | Rebuilt to F9A 537 in February 1959. |
| UP 1559 | Dec 1948 | 6724 | Apr 1958 | Rebuilt to F9A 513 in July 1958. |
| UP 1560 | Jan 1949 | 6725 | Mar 1959 | Rebuilt to F9A 525 in March 1959. |
| UP 1561 | Jan 1949 | 6726 | Apr 1958 | Rebuilt to F9A 515 in August 1958. |
| UP 1562 | Jan 1949 | 6727 | Mar 1958 | Rebuilt to F9A 501 in May 1958. |
| UP 1563 | Jan 1949 | 6728 | Nov 1958 | Rebuilt to F9A 538 in November 1958. |
General Notes:
- Many units were later converted to F7 specifications by Union Pacific.
- Thirteen units (excluding UP 1553) were retired and rebuilt to 500 series F9As by EMD; completely remanufactured, installing a new 16-567C engine and other F9 components into the former F3 car bodies; both Union Pacific and EMD considered the new units to be F9s, not rebuilt F3s.
- Built on EMD order number E939.
EMD F3B -- 14 units
1500 horsepower; B-B trucks; 233,600 pounds operating weight
| Road Number |
Builder Date |
Builder Number |
Date Retired |
Notes |
| UP 1550B | Oct 1948 | 6731 | Mar 1958 | Rebuilt to F9B 509B in June 1958. |
| UP 1550C | Oct 1948 | 6732 | Apr 1958 | Rebuilt to F9B 514B in July 1958. |
| UP 1552B | Nov 1948 | 6733 | Feb 1959 | Rebuilt to F9B 532B in February 1959. |
| UP 1552C | Nov 1948 | 6734 | Mar 1959 | Rebuilt to F9B 531B in March 1959. |
| UP 1554B | Nov 1948 | 6735 | Apr 1958 | Rebuilt to F9B 511B in July 1958. |
| UP 1554C | Nov 1948 | 6736 | Jul 1958 | Rebuilt to F9B 542B in September 1958. |
| UP 1556B | Dec 1948 | 6737 | Mar 1958 | Rebuilt to F9B 507B in June 1958. |
| UP 1556C | Dec 1948 | 6738 | Apr 1958 | Rebuilt to F9B 515B in July 1958. |
| UP 1558B | Dec 1948 | 6739 | Jun 1958 | Rebuilt to F9B 521B in September 1958. |
| UP 1558C | Dec 1948 | 6740 | Nov 1951 | Wrecked on 25 November 1951 at Orchard, Idaho; rebuilt by EMD at La Grange, Illinois, to F7B 1464C in March 1952. |
| UP 1560B | Jan 1949 | 6741 | Jun 1958 | Rebuilt to F9B 528B in September 1958. |
| UP 1560C | Jan 1949 | 6742 | Nov 1958 | Rebuilt to F9B 535B in November 1958. |
| UP 1562B | Jan 1949 | 6743 | Mar 1958 | Rebuilt to F9B 502B in May 1958. |
| UP 1562C | Jan 1949 | 6744 | Dec 1958 | Rebuilt to F9B 534B in December 1958. |
General Notes:
- Many units were later converted to F7 specifications by Union Pacific.
- Thirteen units (excluding UP 1558C) were retired and rebuilt to 500 series F9Bs by EMD; completely remanufactured, installing a new 16-567C engine and other F9 components into the former F3 car bodies; both Union Pacific and EMD considered the new units to be F9s, not rebuilt F3s.
- Built on EMD order number E939.
Alco FA-1 -- 44 units
1500 horsepower; B-B trucks; 234,800 pounds operating weight
| Road Number |
First Number |
Builder Date |
Builder Number |
Date Retired |
Notes |
| UP 1600 | UP 1500A | Jun 1947 | 75283 | May 1965 | Traded to EMD in May 1965. |
| UP 1601 | UP 1501A | Jun 1947 | 75284 | Feb 1965 | Traded to EMD in February 1965. |
| UP 1602 | UP 1502A | Jun 1947 | 75285 | Feb 1965 | Traded to EMD in February 1965. |
| UP 1603 | UP 1503A | Jul 1947 | 75292 | Feb 1965 | Traded to EMD in February 1965. |
| UP 1604 | UP 1504A | Jul 1947 | 75293 | Aug 1964 | |
| UP 1605 | UP 1505A | Jul 1947 | 75294 | Aug 1964 | |
| UP 1606 | UP 1506A | Sep 1947 | 75295 | Aug 1964 | |
| UP 1607 | UP 1507A | Sep 1947 | 75300 | Feb 1965 | Traded to EMD in February 1965. |
| UP 1608 | UP 1508A | Sep 1947 | 75301 | May 1965 | |
| UP 1609 | UP 1509A | Sep 1947 | 75306 | Feb 1965 | Traded to EMD in February 1965. |
| UP 1610 | UP 1510A | Oct 1947 | 75307 | May 1965 | Traded to EMD in May 1965. |
| UP 1611 | UP 1511A | Oct 1947 | 75308 | May 1965 | Traded to EMD in May 1965. |
| UP 1612 | UP 1512A | Oct 1947 | 75309 | Aug 1964 | |
| UP 1613 | UP 1513A | Oct 1947 | 75314 | May 1965 | Traded to EMD in May 1965. |
| UP 1614 | UP 1514A | Nov 1947 | 75414 | May 1965 | Traded to EMD in May 1965. |
| UP 1615 | UP 1515A | Nov 1947 | 75415 | Aug 1964 | Traded to EMD in February 1965. |
| UP 1616 | UP 1516A | Nov 1947 | 75416 | Feb 1965 | Traded to EMD in February 1965. |
| UP 1617 | UP 1517A | Nov 1947 | 75421 | Mar 1963 | Traded to EMD in March 1963. |
| UP 1618 | UP 1518A | Nov 1947 | 75422 | May 1965 | Traded to EMD in May 1965. |
| UP 1619 | UP 1519A | Nov 1947 | 75423 | Sep 1965 | Traded to EMD in September 1965. |
| UP 1620 | UP 1520A | Dec 1947 | 75424 | Aug 1964 | |
| UP 1621 | UP 1521A | Dec 1947 | 75427 | May 1965 | Traded to EMD in May 1965. |
| UP 1622 | UP 1522A | Dec 1947 | 75286 | Aug 1964 | |
| UP 1623 | UP 1523A | Dec 1947 | 75287 | Aug 1964 | |
| UP 1624 | UP 1542A | Feb 1948 | 75707 | Sep 1965 | Traded to EMD in September 1965. |
| UP 1625 | UP 1543A | Feb 1948 | 75708 | May 1965 | Traded to EMD in May 1965. |
| UP 1626 | Sep 1948 | 75997 | May 1965 | Traded to EMD in May 1965. | |
| UP 1627 | Aug 1948 | 75998 | Sep 1965 | Traded to EMD in September 1965. | |
| UP 1628 | Aug 1948 | 75999 | Sep 1965 | Traded to EMD in September 1965. | |
| UP 1629 | Aug 1948 | 76000 | Aug 1964 | ||
| UP 1630 | Aug 1948 | 76001 | Aug 1964 | ||
| UP 1631 | Aug 1948 | 76002 | Feb 1965 | Traded to EMD in February 1965. | |
| UP 1632 | Sep 1948 | 76003 | Feb 1965 | Traded to EMD in February 1965. | |
| UP 1633 | Sep 1948 | 76004 | Aug 1964 | ||
| UP 1634 | Sep 1948 | 76005 | Feb 1965 | Traded to EMD in February 1965. | |
| UP 1635 | Sep 1948 | 76006 | Feb 1965 | Traded to EMD in February 1965. | |
| UP 1636 | Sep 1948 | 76007 | Aug 1964 | Scrapped in Buffalo, New York in April 1965. | |
| UP 1637 | Sep 1948 | 76008 | Sep 1965 | Traded to Alco in September 1965. | |
| UP 1638 | Sep 1948 | 76009 | May 1965 | Traded to EMD in May 1965. | |
| UP 1639 | Sep 1948 | 76010 | Aug 1964 | ||
| UP 1640 | Sep 1948 | 76011 | Aug 1964 | ||
| UP 1641 | Sep 1948 | 76012 | Sep 1965 | Traded to EMD in September 1965. | |
| UP 1642 | Sep 1948 | 76013 | Feb 1965 | Traded to EMD in February 1965. | |
| UP 1643 | Sep 1948 | 76014 | Sep 1965 | Traded to EMD in September 1965. |
General Notes:
- UP 1600-1623 built as 1500A-1523A; Renumbered to UP 1600-1623 during 1948.
- UP 1624 and 1625 built as 1542A and 1543A; Renumbered to UP 1624 and 1625 prior to entering service.
- Seven units (UP 1601, 1616, 1624, 1627, 1628, 1637, 1641) were leased to Canadian Pacific during late February and March 1964.
- UP 1600-1623 had Alco order number 20107 (S-3030 and S-3038).
- UP 1624 and 1625 had Alco order number 20198 (S-3054).
- UP 1626-1643 had Alco order number 20254 (S-3064).
Alco FB-1 -- 44 units
1500 horsepower; B-B trucks; 234,800 pounds operating weight
| Road Number |
First Number |
Builder Date |
Builder Number |
Date Retired |
Notes |
| UP 1600B | UP 1524B | Jun 1947 | 75439 | Aug 1964 | |
| UP 1600C | UP 1525B | Jun 1947 | 75440 | May 1963 | |
| UP 1602B | UP 1526B | Jun 1947 | 75441 | May 1965 | Traded to EMD in May 1965. |
| UP 1602C | UP 1527B | Jul 1947 | 75444 | Feb 1965 | Traded to EMD in February 1965. |
| UP 1604B | UP 1528B | Jul 1947 | 75445 | Aug 1964 | |
| UP 1604C | UP 1529B | Aug 1947 | 75446 | May 1963 | |
| UP 1606B | UP 1530B | Sep 1947 | 75447 | Sep 1965 | Traded to EMD in September 1965. |
| UP 1606C | UP 1531B | Sep 1947 | 75452 | Aug 1964 | |
| UP 1608B | UP 1532B | Oct 1947 | 75453 | Sep 1965 | Traded to EMD in September 1965. |
| UP 1608C | UP 1533B | Nov 1947 | 75585 | Sep 1965 | Traded to GE in September 1965. |
| UP 1610B | UP 1534B | Nov 1947 | 75586 | Sep 1965 | Traded to GE in September 1965. |
| UP 1610C | UP 1535B | Nov 1947 | 75589 | May 1965 | Traded to EMD in May 1965. |
| UP 1612B | UP 1536B | Oct 1947 | 75590 | May 1963 | |
| UP 1612C | UP 1537B | Nov 1947 | 75591 | May 1963 | |
| UP 1614B | UP 1538B | Nov 1947 | 75592 | Sep 1965 | Traded to EMD in September 1965. |
| UP 1614C | UP 1539B | Dec 1947 | 75596 | Sep 1965 | Traded to GE in September 1965; scrapped in Buffalo, New York, in December 1965. |
| UP 1616B | UP 1540B | Feb 1948 | 75755 | Aug 1964 | Traded to EMD in February 1965. |
| UP 1616C | UP 1541B | Feb 1948 | 75756 | Feb 1965 | Traded to EMD in February 1965. |
| UP 1618B | Sep 1948 | 76046 | Sep 1965 | ||
| UP 1618C | Sep 1948 | 76047 | Aug 1964 | ||
| UP 1620B | Aug 1948 | 76048 | May 1965 | Traded to EMD in May 1965. | |
| UP 1620C | Aug 1948 | 76049 | May 1965 | Traded to EMD in May 1965. | |
| UP 1622B | Aug 1948 | 76050 | May 1965 | Traded to GE in May 1965; en route in November 1965. | |
| UP 1622C | Aug 1948 | 76051 | Feb 1965 | Traded to EMD in February 1965. | |
| UP 1624B | Aug 1948 | 76052 | May 1965 | Traded to EMD in May 1965. | |
| UP 1624C | Aug 1948 | 76053 | Sep 1965 | Traded to EMD in September 1965. | |
| UP 1626B | Aug 1948 | 76054 | Aug 1964 | ||
| UP 1626C | Aug 1948 | 76055 | May 1965 | Traded to EMD in May 1965. | |
| UP 1628B | Aug 1948 | 76056 | Sep 1965 | Traded to GE in September 1965; scrapped in Buffalo, New York, in December 1965. | |
| UP 1628C | Aug 1948 | 76057 | May 1965 | Traded to EMD in May 1965. | |
| UP 1630B | Sep 1948 | 76058 | Aug 1964 | ||
| UP 1630C | Sep 1948 | 76059 | Aug 1964 | Scrapped in Buffalo, New York, in April 1965. | |
| UP 1632B | Sep 1948 | 76060 | May 1965 | Traded to EMD in May 1965. | |
| UP 1632C | Sep 1948 | 76061 | Aug 1964 | ||
| UP 1634B | Sep 1948 | 76062 | May 1965 | Traded to EMD in May 1965. | |
| UP 1634C | Sep 1948 | 76063 | May 1965 | Traded to GE in May 1965. | |
| UP 1636B | Sep 1948 | 76064 | Sep 1965 | Traded Alco in September 1965; scrapped in Buffalo, New York, in December 1965. | |
| UP 1636C | Sep 1948 | 76065 | Sep 1965 | Traded to EMD in September 1965. | |
| UP 1638B | Sep 1948 | 76066 | May 1965 | Traded to EMD in May 1965. | |
| UP 1638C | Sep 1948 | 76067 | Sep 1965 | Traded to GE in September 1965; scrapped in Buffalo, New York, in December 1965. | |
| UP 1640B | Sep 1948 | 76068 | Aug 1964 | ||
| UP 1640C | Sep 1948 | 76069 | Feb 1965 | Traded to EMD in February 1965. | |
| UP 1642B | Sep 1948 | 76070 | Aug 1964 | ||
| UP 1642C | Sep 1948 | 76071 | Sep 1965 | Traded to EMD in September 1965. |
General Notes:
- UP 1600B,C-1614B,C were delivered as 1524B-1539B; Renumbered to UP 1600 series during 1948.
- UP 1616B and 1616C were delivered as 1540B and 1541B; Renumbered to UP 1600 series prior to entering service.
- Eight units (UP 1608B, 1608C, 1614B, 1616C, 1618B, 1636B, 1636C, 1642B) were leased to Canadian Pacific during late February and March 1964.
- UP 1600B,C-1614B,C had Alco order number 20108 (S-3039 and S-3048).
- UP 1616B and 1616C had Alco order number 20199 (S-3055).
- UP 1618B,C-1642B,C had Alco order number 20255 (S-3066).
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