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Union Pacific Railroad

Roster of Diesel and Turbine Locomotives, 1934-2009

This page was last updated on July 20, 2012.

(Return to UP Diesel Roster Index Page)

Roster Listing

EMD GP9 -- 50 units
1750 horsepower (some later rebuilt to 2000 horsepower); B-B trucks; operating weight: (see general note, below)

(Read more about UP's GP9 turbocharging program)

(List of GP9 cab units equipped with turbochargers)

Road
Number
Builder
Date
Builder
Number
Date
Retired
Notes
UP 300 Jul 1957 23656 Oct 1979 1
UP 301 Jul 1957 23657 Sep 1976 2
UP 302 Jul 1957 23658 May 1978 3
UP 303 Jul 1957 23659 27 Mar 1981 4
UP 304 Jul 1957 23660 Oct 1979 5
UP 305 Jul 1957 23661 27 Mar 1981 6
UP 306 Jul 1957 23662 Sep 1976 7
UP 307 Jul 1957 23663 May 1984 8
UP 308 Jul 1957 23664 May 1979 9
UP 309 Jul 1957 23665 3 Sep 1975 10
UP 310 Jul 1957 23666 3 Sep 1975 11
UP 311 Jul 1957 23667 May 1980 12
UP 312 Jul 1957 23668 May 1980 13
UP 313 Jul 1957 23669 May 1980 14
UP 314 Jul 1957 23670 6 Jul 1981 15
UP 315 Jul 1957 23671 2 Apr 1981 16
UP 316 Jul 1957 23672 Mar 1981 17
UP 317 Jul 1957 23673 5 Jan 1981 18
UP 318 Jul 1957 23674 23 Nov 1982 19
UP 319 Jul 1957 23675 Feb 1979 20
UP 320 Jul 1957 23676 Feb 1979 21
UP 321 Sep 1957 23677 May 1979 22
UP 322 Sep 1957 23678 Sep 1976 23
UP 323 Sep 1957 23679 Sep 1976 24
UP 324 Sep 1957 23680 Mar 1981 25
UP 325 Sep 1957 23681 Jul 1980 26
UP 326 Sep 1957 23682 Apr 1982 27
UP 327 Sep 1957 23683 5 May 1981 28
UP 328 Sep 1957 23684 Oct 1979 29
UP 329 Sep 1957 23685 May 1985 30
UP 330 Sep 1957 23686 Jan 1980 31
UP 331 Sep 1957 23687 Aug 1978 32
UP 332 Sep 1957 23688 15 Mar 1984 33
UP 333 Sep 1957 23689 Sep 1976 34
UP 334 Sep 1957 23690 May 1978 35
UP 335 Sep 1957 23691 15 Jun 1981 36
UP 336 Sep 1957 23692 8 Dec 1981 37
UP 337 Sep 1957 23693 Feb 1983 38
UP 338 Sep 1957 23694 Mar 1981 39
UP 339 Sep 1957 23695 Oct 1979 40
UP 340 Sep 1957 23696 2 Apr 1981 41
UP 341 Sep 1957 23697 23 Nov 1982 42
UP 342 Sep 1957 23698 Sep 1976 43
UP 343 Sep 1957 23699 23 Nov 1982 44
UP 344 Sep 1957 23700 Apr 1982 45
UP 345 Sep 1957 23701 6 Jul 1981 46
UP 346 Sep 1957 23702 Sep 1976 47
UP 347 Sep 1957 23703 Jan 1981 48
UP 348 Oct 1957 23704 May 1978 49
UP 349 Oct 1957 23705 Feb 1980 50

General Notes:

a. Of the original 50 GP9 cab units in the 300 series, 36 were rebuilt with turbochargers, either the early AiResearch and Elliott designs, or the later EMD design.
  (Read more about UP's GP9 turbocharging program)
  (List of GP9 cab units equipped with turbochargers)
  Turbocharger
Type
Quantity Notes
  Elliott 6 2 rebuilt to EMD
  AiResearch 3  
  EMD 27  
  (none) 14  
b. UP 301, 305, and 308B were rebuilt by EMD as pre-production GP20s, using EMD's new turbocharger. The units also received the 2350 gallon fuel tank, horizontal air reservoirs and inspection slots in the frame side usually associated with the GP20.
c. Note that there was a break in production between UP 320 (July 1957) and UP 321 (September 1957); UP 321 was the first GP9 that had the twin, small louver vents on the battery boxes, replacing the single, large louver that had been used since the beginning of GP7 production in late 1949. (More information the first use of 48-inch radiator fans)
d. UP 324 was equipped with a separate oil cooler, located in the short hood, requiring small louvers in the short hood car body.
e. Many of the 300-class cab units were modified with a separate access door above the walkway and behind the fireman's side of the cab. This added door allowed access for easier changing of the units' field shunt resistors. By photo research, the modified units include UP 312, 316, and 317.
f. UP 329 was the last 2000 horsepower GP9M (nicknamed Omaha GP20) on UP, retired in May 1985.
g. UP 340 was equipped with a large pilot snowplow.
h. Many units in the 300-class GP9s were equipped to burn low grade residual fuel, known as Bunker C. This modification included large fuel lines mounted to the left side of the new 2400 gallon fuel tank. By photo research, using the addition of open-grid walkways as the indicator, the modified units include UP 307, 311, 316, 328, 336, 343, 348, and 349. (Read more about Bunker C fuel oil)
i. UP 300-349 had an original operating weight of 246,800 pounds before the addition of the 2400 gallon fuel tanks. UP 312, 333, 338, 341, 345, and 346 retained this weight throughout their operating careers. The units equipped with 2400 gallon fuel tanks had operating weights of 258,700 pounds.
j. Built on EMD order number 5552, frame numbers 5552-1 to 50.

Notes:

1. UP 300 was sold to Precision National Corp., Mount Vernon, Illinois, in October 1979.
2. UP 301 was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976; sold to C&NW in April 1977, rebuilt to C&NW GP9R 4496 in August 1977.
3. UP 302 was sold to ICG in November 1978; sold to ICG, rebuilt to ICG GP11 8703 in May 1979.
4. UP 303 was sold to Precision National Corp., Mount Vernon, Illinois, 27 March 1981.
5. UP 304 was sold to Precision National Corp., Mount Vernon, Illinois, in December 1979.
6. UP 305 was sold to Precision National Corp., Mount Vernon, Illinois, 27 March 1981.
7. UP 306 was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976; sold to C&NW in April 1977, rebuilt to 4497 September 1977.
8. UP 307 was sold for scrap to Bargains Galore, Vancouver, Washington, 27 February 1986; scrapped by General Metals, Tacoma, Washington.
9. UP 308 was sold to Morrison Knudsen, 1 October 1979, rebuilt (including removal of turbocharger) and sold to Kyle Railways, 21 March 1980, lettered for San Diego & Arizona Eastern 104.
10. UP 309 was wrecked in July 1975 at Bassett, Wyoming; scrapped by UP at Pocatello, Idaho, in September 1975.
11. UP 310 was wrecked in July 1975 at Bassett, Wyoming; scrapped by UP at Pocatello, Idaho, in September 1975.
12. UP 311 was sold to Precision National Corp., Mount Vernon, Illinois, in September 1980.
13. UP 312 was sold for scrap to Naporano Iron & Metal, Newark, N.J. in July 1980.
14. UP 313 was sold to Precision National Corp., Mount Vernon, Illinois, in September 1980.
15. UP 314 was sold to ATSF in November 1981, rebuilt to ATSF yard slug 104, completed on 26 February 1982.
16. UP 315 was sold for scrap to Azcon Hyman Michaels, Alton, Illinois, 2 April 1981.
17. UP 316 was sold to Precision National Corp., Mount Vernon, Illinois, in March 1981
18. UP 317 was sold to Precision National Corp., Mount Vernon, Illinois, 5 January 1981.
19. UP 318 was sold for scrap to Bargains Galore, Vancouver, Washington, 27 February 1986; scrapped by General Metals, Tacoma, Washington, in May 1986.
20. UP 319 was sold to Peaker Services, Brighton, Mich.; scrapped during 1990.
21. UP 320 was sold to Peaker Services, Brighton, Mich.; scrapped during 1990.
22. UP 321 was sold to Precision National Corp., Mount Vernon, Illinois, 17 October 1979.
23. UP 322 was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976; sold to C&NW in April 1977, rebuilt to C&NW GP9R 4498 in September 1977.
24. UP 323 was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976; sold to C&NW in April 1977, rebuilt to C&NW GP7R 4399 in August 1977.
25. UP 324 was sold to Precision National Corp., Mount Vernon, Illinois, in March 1981.
26. UP 325 was sold for scrap to Naporano Iron & Metal, Newark, N.J. in July 1980.
27. UP 326 was sold to General Metals, Tacoma, Washington, 24 December 1982.
28. UP 327 was sold for scrap to Naporano Iron & Metal, Newark, N.J., 5 May 1981.
29. UP 328 was sold to Precision National Corp., Mount Vernon, Illinois, in September 1980.
30. UP 329 was sold to Durbano, Ogden, Utah, 15 November 1985.
31. UP 330 was sold to Bargains Galore, Vancouver, Washington, in September 1980; scrapped by Joseph Simon & Sons, Tacoma, Washington.
32. UP 331 was sold to Precision National Corp., Mount Vernon, Illinois, in January 1979; sold to ICG, rebuilt to ICG GP11 8735 in April 1980.
33. UP 332 was sold St. Louis Auto Shredding, East St. Louis, Illinois, 12 November 1985.
34. UP 333 was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976; sold to C&NW in April 1977, rebuilt to C&NW GP7R 4388 in June 1977.
35. UP 334 was sold to Precision National Corp., Mount Vernon, Illinois, 23 January 1979.
36. UP 335 was sold to Precision National Corp., Mount Vernon, Illinois, 15 June 1981.
37. UP 336 was sold for scrap to Naporano Iron & Metal, Newark, N.J., 25 February 1982.
38. UP 337 was sold for scrap to Erman Corp., Turner, Kansas, 5 September 1985.
39. UP 338 was sold to Precision National Corp., Mount Vernon, Illinois, in March 1981.
40. UP 339 was sold to Rail Car Corp. in May 1980.
41. UP 340 was sold for scrap to Azcon Hyman Michaels, Alton, Illinois, 2 April 19881.
42. UP 341 was sold for scrap to Erman Corp., Turner, Kans., in October 1983.
43. UP 342 was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
44. UP 343 was sold to Iowa Railroad (for parts) in March 1983.
45. UP 344 was sold to General Metals, Tacoma, Washington, 24 December 1982.
46. UP 345 was sold to ATSF in November 1981, rebuilt to ATSF yard slug 105, 4 February 1983.
47. UP 346 was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976; sold to C&NW in April 1977, rebuilt to C&NW GP7R 4384 in April 1977; sold to Relco RE1611 in April 1990.
48. UP 347 was sold to Precision National Corp., Mount Vernon, Illinois, in March 1981.
49. UP 348 was sold to Precision National Corp., Mount Vernon, Illinois, 23 January 1979; sold to ICG, rebuilt to ICG GP11 8734 in April 1980.
50. UP 349 was sold for scrap to Naporano Iron & Metal, Newark, N.J. in February 1980.
   

EMD GP9B -- 50 units
1750 horsepower (some later rebuilt to 2000 horsepower); B-B trucks; 253,800 pounds operating weight

Road
Number
Builder
Number
Builder
Date
Date
Retired
Notes
UP 300B Sep 1957 23706 July 1976 1
UP 301B Sep 1957 23707 Oct 1974 2
UP 302B Sep 1957 23708 Sep 1976 3
UP 303B Sep 1957 23709 May 1979 4
UP 304B Sep 1957 23710 Jul 1976 5
UP 305B Sep 1957 23711 Sep 1976 6
UP 306B Sep 1957 23712 Sep 1976 7
UP 307B Sep 1957 23713 Oct 1977 8
UP 308B Sep 1957 23714 Sep 1976 9
UP 309B Sep 1957 23715 Oct 1979 10
UP 310B Sep 1957 23716 Sep 1976 11
UP 311B Sep 1957 23717 Sep 1976 12
UP 312B Sep 1957 23718 May 1978 13
UP 313B Sep 1957 23719 Sep 1976 14
UP 314B Sep 1957 23720 Mar 1976 15
UP 315B Sep 1957 23721 Sep 1976 16
UP 316B Sep 1957 23722 Aug 1975 17
UP 317B Sep 1957 23723 Jul 1976 18
UP 318B Sep 1957 23724 May 1978 19
UP 319B Sep 1957 23725 Sep 1976 20
UP 320B Sep 1957 23726 Sep 1976 21
UP 321B Sep 1957 23727 Sep 1976 22
UP 322B Sep 1957 23728 Jun 1976 23
UP 323B Sep 1957 23729 Sep 1976 24
UP 324B Sep 1957 23730 Dec 1974 25
UP 325B Sep 1957 23731 May 1979 26
UP 326B Sep 1957 23732 Jun 1976 27
UP 327B Sep 1957 23733 Jun 1976 28
UP 328B Sep 1957 23734 Sep 1976 29
UP 329B Sep 1957 23735 Oct 1977 30
UP 330B Sep 1957 23736 Jan 1972 31
UP 331B Sep 1957 23737 Sep 1976 32
UP 332B Sep 1957 23738 Jun 1976 33
UP 333B Sep 1957 23739 Sep 1976 34
UP 334B Sep 1957 23740 May 1979 35
UP 335B Sep 1957 23741 Oct 1977 36
UP 336B Sep 1957 23742 Oct 1977 37
UP 337B Sep 1957 23743 May 1978 38
UP 338B Sep 1957 23744 May 1978 39
UP 339B Sep 1957 23745 Oct 1979 40
UP 340B Sep 1957 23746 May 1978 41
UP 341B Oct 1957 23747 Oct 1974 42
UP 342B Oct 1957 23748 Sep 1976 43
UP 343B Oct 1957 23749 Jun 1976 44
UP 344B Oct 1957 23750 Sep 1976 45
UP 345B Oct 1957 23751 Jun 1976 46
UP 346B Oct 1957 23752 Jul 1976 47
UP 347B Oct 1957 23753 Aug 1978 48
UP 348B Oct 1957 23754 Oct 1979 49
UP 349B Oct 1957 23755 Sep 1976 50

General Notes:

a. Of the original 50 GP9 booster units in the 300 series, 37 were rebuilt with turbochargers, either the early AiResearch and Elliott designs, or the later EMD design.
  (Read more about UP's GP9 turbocharging program)
  (List of GP9 cab units equipped with turbochargers)
  Turbocharger
Type
Quantity Notes
  Elliott 4 3 rebuilt to EMD
  AiResearch 6 3 rebuilt to EMD
  EMD 27  
  (none) 13  
b. Fifteen UP 300 class GP9Bs were equipped with steam generators, used system wide on secondary passenger trains when needed. Included were UP 306B, 310B, 311B, 318B, 324B, 325B, 326B, 329B, 338B, 339B, 341B, 343B, 346B, 347B, and 349B. Each locomotive was equipped with a combination 1300 gallon fuel and 1100 gallon water tank. After Amtrak took over the passenger trains on Union Pacific in 1971, the steam generators were retired in place on the locomotives. The combination fuel and water tanks were converted to 2400 gallon fuel tanks.
c. Many units in the 300-class GP9s were equipped to burn heavy fuel, also known as Bunker C. This modification included large fuel lines mounted to the left side of the new 2400 gallon fuel tank.
d. Built on EMD order number 5552, frame numbers 5552-B1 to 5552-B50. (changed from showing frame numbers as 5552-B51 to 5552-B100, per email from Larry Russell, dated June 1, 2005, based on conjecture for matching frame numbers on earlier GP9B units, UP 130B-204B, which had been frame-checked on numerous occasions.)

Notes:

1. UP 300B was traded to EMD, 12 July 1976.
2. UP 301B was rebuilt by UP at Omaha to yard slug S3 in October 1974.
3. UP 302B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
4. UP 303B was sold to Bargains Galore, Vancouver, Washington, 14 December 1979, unit remained on UP until resold to Diesel Electric Service, St. Paul, Minn., in January 1980.
5. UP 304B was traded to EMD, 2 July 1976.
6. UP 305B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
7. UP 306B was rebuilt by UP at Omaha to yard slug S6 in September 1976.
8. UP 307B was wrecked; sold to Precision National Corp., Mount Vernon, Illinois, in October 1977.
9. UP 308B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
10. UP 309B was sold to Precision National Corp., Mount Vernon, Illinois, in October 1979.
11. UP 310B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
12. UP 311B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
13. UP 312B was sold to Precision National Corp., Mount Vernon, Illinois, in October 1978.
14. UP 313B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
15. UP 314B was rebuilt by UP at Omaha to yard slug S5, completed on 9 March 1976; out of service as UP 314B from mid July 1974 (239 days).
16. UP 315B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
17. UP 316B was rebuilt by UP at Omaha to yard slug S4 in August 1975.
18. UP 317B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
19. UP 318B was sold to ICG in November 1978; sold to ICG, rebuilt to ICG GP11 8701 in July 1979.
20. UP 319B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
21. UP 320B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
22. UP 321B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
23. UP 322B was traded to EMD, 18 June 1976.
24. UP 323B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
25. UP 324B was wrecked December 1974 at Aikens, Kansas; moved to Salt Lake City in January 1975; short hood and battery boxes used to repair wreck damaged GP9 334; remainder of 324B was scrapped by UP at Salt Lake City, Utah.
26. UP 325B was sold for scrap to Naporano Iron & Metal, Newark, N.J. in December 1979.
27. UP 326B was traded to EMD, 17 July 1976.
28. UP 327B was traded to EMD, 21 June 1976.
29. UP 328B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
30. UP 329B was sold to Precision National Corp., Mount Vernon, Illinois, in November 1977.
31. UP 330B was traded to EMD in February 1972.
32. UP 331B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
33. UP 332B was traded to EMD, 4 June 1976.
34. UP 333B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
35. UP 334B was sold to Precision National Corp., Mount Vernon, Illinois, 17 October 1979.
36. UP 335B was sold to Precision National Corp., Mount Vernon, Illinois, in October 1977.
37. UP 336B was sold to Precision National Corp., Mount Vernon, Illinois, in October 1977.
38. UP 337B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1978.
39. UP 338B was sold to Precision National Corp., Mount Vernon, Illinois, in October 1978.
40. UP 339B was sold to Precision National Corp., Mount Vernon, Illinois, in October 1979.
41. UP 340B was sold to Precision National Corp., Mount Vernon, Illinois, in October 1978.
42. UP 341B was rebuilt by UP to yard slug S2 in October 1974.
43. UP 342B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
44. UP 343B was traded to EMD, 4 June 1976.
45. UP 344B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
46. UP 345B was traded to EMD, 4 June 1976.
47. UP 346B was traded to EMD, 1 July 1976.
48. UP 347B was sold to Precision National Corp., Mount Vernon, Illinois, 23 January 1979.
49. UP 348B was sold to Precision National Corp., Mount Vernon, Illinois, in December 1979.
50. UP 349B was sold to Precision National Corp., Mount Vernon, Illinois, in September 1976.
   

EMD GP9 -- 6 units
1750 horsepower; B-B trucks; 247,600 pounds operating weight

Road
Number
First
Number
Builder
Date
Builder
Number
Date To
UP Number
Date
Retired
Notes
UP 300 WP 725 Sep 1955 20696 21 Jan 1985 May 1985 1
(UP 301) WP 726 Sep 1955 20697   (Jun 1971) 2
(UP 302) WP 727 Sep 1955 20698   Feb 1984 3
(UP 303) WP 728 Sep 1955 20699   9 Jul 1984 4
UP 304 WP 729 Sep 1955 20700 6 Jul 1984 Jun 1985 5
(UP 305) WP 730 Sep 1955 20701   (Sep 1964) 6
UP 306 WP 731 Sep 1955 20754 13 Nov 1984 May 1985 7
UP 308 WP 732 Sep 1955 20755 18 Jun 1984 May 1985 8

General Notes:

a. Original total of eight units, numbered WP 725-732; six units to UP at merger; WP 726 and 730 were retired by WP in 1964 and 1971, long before the UP merger in 1982, but were assigned number slots in the UP 300-306, 308 number series.
b. UP numbers 300-306, 308 were assigned based on assumption of all eight units were still in service at time of UP merger; UP GP9 307 was still in service at time of merger.
c. WP GP9 725 was the last former WP unit, lettered for WP, to operate on WP; removed from service on 8 January 1985 and sent to North Platte, Nebraska, for repaint.
d. WP 729 repainted to UP 304, with smaller lettering, "Union Pacific" all on one line.
e. WP 732 repainted to UP 308, with larger lettering, "Union Pacific" on two lines.
f. UP 300, 304, 306, and 308 operated until May 1985 (UP 308 was the last unit of this group to be removed from service, on 24 May 1985), at which time they were shipped east to Omaha to be sold, in operating condition. All four units were purchased by Precision National Corp. in July 1985, but remained in storage at Council Bluffs until mid March 1986.
g. See Western Pacific Headlight (published by the Feather River Rail Society), issue 16, pages 32-33.
h. Built on EMD order number 5407.

Notes:

1. UP 300 (ex WP 725) was sold to Precision National on 18 July 1985; sold to Helm Financial and leased to Iowa Interstate (IAIS) 300 in August 1986; leased to Kansas Southwestern Railway in March 1991; returned to Iowa Interstate by 1992; out of service by 1994; sold by Helm to Feather River Rail Society, Portola, California, November 1995.
2. WP 726 was wrecked on 20 May 1970 at Keddie, California, and traded to EMD in June 1971.
3. WP 727 was donated to the City of Elko, Nevada, along with WP caboose 437, in September 1984; delivered during November 1984; painted back to original orange and silver paint scheme in September 1984 by UP; put on display in park situated on portion of abandoned right of way in downtown Elko on 4 April 1986. (Alignment of paired track, shared with SP, was moved away (south) from downtown Elko due to street and rail traffic congestion; the last train operated through downtown Elko during late 1983.)
4. WP 728 was sold for scrap to Erman Corp. at Erman, Kans., in March 1985.
5. UP 304 (ex WP 729) was sold to Precision National on 18 July 1985; sold to Helm Financial and leased to Iowa Interstate (IAIS) 304 in September 1986; wrecked while in service on IAIS and retired during October 1987; only cab and frame remained by August 1989.
6. WP 730 was wrecked on 21 September 1963 at Beowawe, Nevada, and traded to EMD in September 1964.
7. UP 306 (ex WP 731) was sold to Precision National on 18 July 1985; sold to Helm Financial and leased to Iowa Interstate (IAIS) 306 in August 1986; leased to Kansas Southwestern Railway in March 1991; returned to Iowa Interstate by 1992; out of service by 1994; sold by Helm to Feather River Rail Society, Portola, California, November 1995.
8. UP 308 (ex WP 732) was sold to Precision National on 18 July 1985; sold to Helm Financial and leased to Iowa Interstate (IAIS) 308 in October 1986; wrecked during August 1988; long hood used to repair wreck damaged Iowa Interstate (IAIS) 309. Only cab and frame remained by August 1989.
   

GE B36-7 -- 8 units
3600 horsepower; B-B trucks; 280,000 pounds operating weight

Road
Number
First
Number
Builder
Date
Builder
Number
Date To
UP Number
Date
Retired
Notes
(UP 384) SSW 7770 Jan 1980 42784   10 Jun 1999  
(UP 385) SP 7754 Nov 1984 43791   7 Apr 2000  
(UP 386) SP 7755 Nov 1984 43792   19 May 1997 1
(UP 387) SP 7756 Nov 1984 43793   7 Apr 2000  
(UP 388) SP 7757 Nov 1984 43794   19 May 1997  
(UP 389) SP 7758 Nov 1984 43795   7 Apr 2000  
(UP 390) SP 7759 Nov 1984 43796   7 Apr 2000  
(UP 391) SP 7760 Nov 1984 43797   19 May 1997 1
(UP 392) SP 7761 Nov 1984 43798   19 May 1997 1
(UP 393) SP 7762 Nov 1984 43799   17 Jul 1997  
(UP 394) SP 7763 Nov 1984 43800   7 Apr 2000  
(UP 395) SP 7764 Nov 1984 43801   7 Apr 2000  
UP 396 SP 7766 Dec 1984 43803 4 May 1998 18 Apr 2000 2
(UP 397) SP 7767 Dec 1984 43804   19 May 1997 1
(UP 398) SP 7768 Dec 1984 43805   19 May 1997 1
(UP 399) SP 7769 Dec 1984 43806   19 May 1997 1

General Notes:

a. Original total of SP 20 units, numbered SP 7754-7769 and SSW 7770-7773; 16 units went to UP at merger; SP retired four units (SP 7765, SSW 7771-7773) prior to the merger. (SSW 7771-7773 were still on the property at merger; SSW 7771 and 7773 were sold by UP to Livingston Rebuild Center, Livingston, Montana, in March 1997; SSW 7772 was sold by UP to Progress Rail Services in March 1997.)
b. Seven remaining units assigned UP 7733-7739 in December 1999; all units retired by 2000, prior to being renumbered.

Notes:

1. Seven units (SP 7755, 7760, 7761, 7762, 7767, 7768, and 7769) were sold to Boise Locomotive Co., Boise, Idaho, on 15 April 1999 (SP 7762 on 16 April 1999); moved to MPI in Mexico for potential rebuilding and sale in November 1999. (SSW 7772, previously retired by SP and sold by UP to Progress Rail, was also involved in the move.)
2. UP 396 (ex SP 7766) was the only unit of the former SP/SSW 7754-7773 group to be repainted to the Union Pacific 384-399 group, completed on 4 May 1998.

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