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Union Pacific Railroad

Roster of Diesel and Turbine Locomotives, 1934-2009

This page was last updated on February 15, 2014.

(Return to UP Diesel Roster Index Page)

Roster Listing

EMD GP7 -- 30 units
1500 horsepower; B-B trucks; operating weight: (see general note, below)

Road
Number
First
Number
Builder
Date
Builder
Number
Date
Retired

Notes
UP 100 UP 700 Feb 1953 17827 8 Aug 1978 Sold to Bargains Galore, Vancouver, Washington in April 1979, shipped to Diesel Electric Service Corporation, St. Paul, Minnesota; leased to LaSalle & Bureau County (in Chicago) as LSBC no. 100, along with GP9 273, both were fully painted and lettered LSBC (these were the original locos on the LSBC's operation over ex-RI tracks owned by METRA); sold to Texas North Western 100, then to Kiamichi Railroad 701, to Texas North Orient 701; sold to Transglobal Rail (TGRX), Des Moines, Iowa, about May 1998; as of early August 2007, TGRX 700 was in service at a grain elevator north of Alton, Iowa.
UP 101 UP 701 Feb 1953 17828 11 Apr 1978 Sold for scrap to Naporano Iron and Metal in August 1978; sold to Southern Rails, Inc., for possible slug conversion.
UP 102 UP 702 Feb 1953 17829 27 Oct 1977 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1977, rebuilt and sold to Amtrak 776 in April 1978.
UP 103 UP 703 Feb 1953 17830 Jul 1983 Sold for scrap to General Metals, Tacoma, Washington in August 1983.
UP 104 UP 704 Feb 1953 17831 27 Oct 1977 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1977, rebuilt and sold to Amtrak 777 in May 1978.
UP 105 UP 705 Feb 1953 17832 Oct 1979 Sold to Bargains Galore, Vancouver, Washington 30 January 1981; sold to Rail Car Corporation in April 1981; sold to Cadillac and Lake City 105 (photo in Railfan & Railroad, May 1982)
UP 106 UP 706 Feb 1953 17833 14 Feb 1977 Sold to Chrome Crankshaft Co., Chicago, Illinois in February 1977, shipped to CRI&P-Silvis, 2 August 1977, rebuilt and repainted light gray by CRI&P-Silvis, leased out as CC 6500; sold for scrap to Naporano Iron & Metal, Newark, New Jersey in October 1978, repainted and renumbered to Naporano 1601 for lease to Michigan Northern; stored out of service at Paw Paw, Michigan, by October 1991.
UP 107 UP 707 Feb 1953 17834 Apr 1981 Sold to Bargains Galore, Vancouver, Washington 28 April 1981, still there during March 1983.
UP 108 UP 708 Mar 1953 17835 11 Apr 1978 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1978; sold to ICG, rebuilt to ICG GP11 8744 in May 1980.
UP 109 UP 709 Mar 1953 17836 14 Feb 1977 Sold to Chrome Crankshaft Co., Chicago, Illinois in February 1977, shipped to CRI&P-Silvis, 2 August 1977, rebuilt and repainted light gray by CRI&P-Silvis, leased out as CC 6501; sold for scrap to Naporano Iron & Metal, Newark, New Jersey in October 1978, repainted and renumbered to Naporano 1602 for lease to Michigan Northern; scrapped in May 1984.
UP 110 UP 710 Jun 1953 18569 27 Oct 1977 Wrecked (bent frame); sold to Precision National Corporation, Mount Vernon, Illinois in October 1977, rebuilt and sold to Amtrak 778 in May 1978; sold to Independent Locomotive Service; sold to Railway Maintenance Services (RETX) 302; used during August 1997 on Noble Rocks Railroad.
UP 111 UP 711 Jun 1953 18570 Jul 1979 Sold to GE, Hornell, New York, 13 March 1980; sold to Louisiana & North West Railroad, Gibsland, La., in January 1981, rebuilt to L&NW 50, including new chop nose, by L&NW at Gibsland shop, completed on 26 January 1982.
UP 112 UP 712 Jul 1953 18571 Feb 1979 Sold for scrap to General Metals, Tacoma, Washington 31 August 1981.
UP 113 UP 713 Jul 1953 18572 28 Sep 1978 Sold to Precision National Corporation, Mount Vernon, Illinois in April 1979; sold to ICG, 10 July 1979. Still at ICG-Paducah in early 1984.
UP 114 UP 714 Jul 1953 18573 8 Aug 1978 Sold to Precision National Corporation, Mount Vernon, Illinois 23 January 1979.
UP 115 UP 715 Jul 1953 18574 11 Apr 1978 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1978; sold for scrap to Naporano Iron & Metal, Newark, New Jersey in April 1979.
UP 116 UP 716 Aug 1953 18575 11 Apr 1978 Sold to Precision National Corporation, Mount Vernon, Illinois in May 1978; sold to Naporano Iron & Metal, Newark, New Jersey in November 1978, shipped in January 1979; sold to ATSF, rebuilt to ATSF yard slug 118, completed on 6 June 1980.
UP 117 UP 717 Aug 1953 18576 Feb 1979 Sold to Precision National Corporation, Mount Vernon, Illinois in April 1979; sold to ICG, 10 July 1979. Still at ICG-Paducah in early 1984.
UP 118 UP 718 Aug 1953 18577 6 Mar 1980 Sold for scrap to Naporano Iron & Metal, Newark, New Jersey, 24 February 1981.
UP 119 UP 719 Aug 1953 18578 8 Aug 1978 Sold to Precision National Corporation, Mount Vernon, Illinois in November 1978.
UP 120 UP 720 Oct 1953 18711 Feb 1979 Sold to Peaker Services, Brighton, Michigan, in January 1980.
UP 121 UP 721 Oct 1953 18712 Sep 1984 Sold for scrap to Erman Corporation, Turner, Kansas, in August 1985.
UP 122 UP 722 Oct 1953 18713 11 Apr 1978 Wrecked (bent frame); sold to Precision National Corporation, Mount Vernon, Illinois in November 1978; sold to ICG in November 1978, rebuilt to ICG GP11 8725 in November 1979.
UP 123 UP 723 Oct 1953 18714 11 Apr 1978 Sold to Precision National Corporation, Mount Vernon, Illinois in May 1978; sold to ICG, 10 July 1979. Still at ICG-Paducah in early 1984.
UP 124 UP 724 Oct 1953 18715 27 Oct 1977 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1977; sold to ICG, rebuilt to ICG GP11 8723 in November 1979.
UP 125 UP 725 Oct 1953 18716 27 Oct 1977 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1977, leased out as Precision 125, first in UP paint, then later in standard Precision lease-fleet green and yellow; sold to Iowa Interstate Railroad 325 in June 1986; leased to Kansas Southwestern Railway in March 1991 for its initial operations; returned to IAIS and painted in February 1994 to IAIS standard red and black colors; still in service during August 2000. (additional information from Joe Atkinson)
UP 126 UP 726 Oct 1953 18717 Aug 1981 Sold for scrap to General Metals, Tacoma, Washington 31 August 1981.
UP 127 UP 727 Oct 1953 18718 Jun 1980 Sold to Precision National Corporation, Mount Vernon, Illinois 22 January 1981.
UP 128 UP 728 Oct 1953 18719 Aug 1971 Wrecked August 1971, traded to EMD August 1971.
UP 129 UP 729 Oct 1953 18720 27 Oct 1977 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1977, rebuilt and sold to Amtrak 779 in May 1978; to Independent Locomotive Service (ILSX) 1329; given a chopped short hood; leased to Nobles Rock Railroad, returned to ILS for non-payment of lease in August 2000.

General Notes:

a. Built as UP 700-729; renumbered to UP 100-129 during October and November 1953 at Salt Lake, Las Vegas, or Los Angeles while in service on the South-Central District, working on the Utah and California Divisions. Some sources say that UP 124-129 may have been delivered as UP 100 series locomotives, however, UP 126 was positively identified as ex UP 726 by being able to see the old number 700 series road number beneath the new 100 series road number. UP 128 and 129 may have been delivered with those numbers, or may have received their 100 series road numbers after delivery but prior to entering service, possibly having their steam generators installed at the same time.
b. UP 700-709 (later UP 100-109) were originally intended to be numbered as UP 1950-1959. A painting and lettering diagram was prepared showing those original numbers, but later changed to reflect the as-delivered numbers. A builder's photo of UP 703 at the EMD factory in Cleveland shows, upon digitally-enhanced examination, that the road number on the ends was D.S. 1953.
c. Union Pacific's GP7s were operated long hood forward. The GP7s also had 24-inch exhaust stack extensions, low mounted headlights, emergency warning "Mars" lights, and an unusual number board arrangement on the long, forward hood. The regular headlights were mounted in line with the number boards, below the Mars light, 15 inches lower than the EMD standard.
d. UP 108 was equipped with hump controls.
e. UP 113, 120, 121, 123, 124, 125, and 129 were equipped with full pilot snow plows. UP 103 was equipped with General Steel Castings cast steel snowplows on each end.
f. UP 100-127 were equipped with 1600 gallon fuel tanks.
g. UP 128 and 129 were initially equipped with 800 gallon fuel tanks, with 800 gallon water tanks for their steam generators. After UP 129 had its steam generator removed in 1972 it was equipped with a 1200 gallon fuel tank.
h. UP 128 and 129 were equipped with steam generators from the time of their initial setup by UP in November 1953; UP 128 retained its steam generator until retirement in August 1971; UP 129 had its steam generator removed in 1972.
i. By July 1981 there were only four GP7s remaining on UP's roster: UP 103, 112, 121, 126. By March 1984 only UP 121 remained. UP 121 was last operated during the third week of July 1984.
j. UP 100-119 were equipped with 16-567B engines; UP 120-129 were equipped with 16-567BC engines.
k. UP 100-127 had 249,200 pounds operating weight
l. While equipped with steam generators, UP 128 and 129 had 246,400 pounds operating weight in freight service; and 253,600 pounds operating weight in passenger service; at the time UP 129 had its steam generator removed, the unit was re-ballasted and had an operating weight of 249,200 pounds, the same as UP 120-127.
m. UP 100-109 were built on EMD order 6483; UP 110-119 were built on EMD order 5245; UP 120-129 were built on EMD order 5305.
n. (Read more about UP's GP7s)
   

EMD GP7 -- 12 units
1500 horsepower; B-B trucks; 251,700 pounds operating weight

Road
Number
First
Number
Second
Number
Builder
Date
Builder
Number
Date To
UP Number
Date
Retired
Notes
(UP 100) WP 701   Oct 1952 17025   18 Mar 1985 1
(UP 101) WP 702   Oct 1952 17026   (1 Jul 1981) 2
(UP 102) WP 703   Oct 1952 17027   18 Mar 1985 3
(UP 104) WP 704   Oct 1952 17028   18 Mar 1985 4
(UP 105) WP 705   Oct 1952 17029   18 Mar 1985 5
(UP 106) WP 706   Oct 1952 17030   18 Mar 1985 6
(UP 108) WP 707   Oct 1952 17031   18 Mar 1985 7
(UP 109) WP 708   Oct 1952 17056   1 Aug 1984 8
UP 110 (2nd) WP 709   Oct 1952 17057 25 Sep 1984 Dec 1984 9
(UP 111) WP 710   Mar 1953 18166   18 Mar 1985 10
UP 113 (2nd) WP 711 SN 711 Apr 1953 18167 29 Aug 1984 Oct 1984 11
(UP 114) WP 712 SN 712 Apr 1953 18168   18 Mar 1985 12
(UP 115) WP 713   Apr 1953 18169   26 Oct 1983 13

General Notes:

a. Original total of 13 units; 12 units to UP at merger; WP 702 was retired by WP prior to the UP merger.
b. Of total of 12 units to UP at merger, only two units were repainted/renumbered to UP.
c. Assigned UP 100, 101, 102, 104, 105, 106, 108, 109, 110, 111, 113, 114, and 115 on 16 November 1983. UP's original GP7s 103, 107, and 112 were still in service at the time making it necessary to renumber the former WP GP7s into available number slots around them.
d. The former SN 712 was the last former WP unit still in WP paint to operate on the WP. It was removed from service on 11 January 1985.
e. Seven former WP GP7s (701, 703, 704, 705, 706, 707, 710, plus seven WP GP20s) were stored at Salt Lake City, Utah, from early 1983 to late 1986, then moved to Ogden, Utah, where they remained stored until July 1987.
f. Six former WP GP7s (701, 703, 704, 705, 706, 710) were sold to Mountain Diesel Transportation in July 1987. Shipped to Great Western Railway, Longmont, Colorado in first week of September 1987. Great Western purchased two units and stored the other four. All six units were still in WP paint.
g. WP 701-709 were built on EMD order number 5197; built at EMD's Cleveland, Ohio, plant.
h. WP 710-713 were built on EMD order number 5230; built at EMD's Cleveland, Ohio, plant.

Notes:

1. WP 701 was sold to Mountain Diesel Transportation on 15 July 1987; reconditioned by Great Western Railway at Loveland, Colorado; leased to Dry Valley Railroad, Soda Springs, Idaho, in March 1988; wrecked on 2 September 1988 at Dry Valley, Idaho; scrapped at wreck site.
2. WP 702 was retired by WP in March 1981, prior to the UP merger; WP sold the unit for scrap in May 1982 to Levin Metals; still on WP property at time of UP merger; scrapped by UP.
3. WP 703 was sold to Mountain Diesel Transportation on 15 July 1987; sold to Great Western 703 in August 1987; lettered as Arizona Central 703 in May 1989.
4. WP 704 was sold to Mountain Diesel Transportation on 15 July 1987; moved to Great Western Railway at Loveland, Colorado; moved to Denver, Colorado in March 1989.
5. WP 705 was sold to Mountain Diesel Transportation on 15 July 1987; sold to Great Western 705 in August 1987; lettered as Arizona Central 705 in May 1989.
6. WP 706 was sold to Mountain Diesel Transportation on 15 July 1987; sold to Tennessee Southern at Mount Pleasant, Tenn, by September 1990.
7. WP 707 was donated to the Feather River Rail Society at Portola, California, on 2 January 1987.
8. WP 708 was donated to the Feather River Rail Society at Portola, California, on 2 August 1984; delivered on 7 December 1984.
9. WP 709 was sold for scrap to St. Louis Auto Shredding on 12 November 1985.
10. WP 710 was sold to Mountain Diesel Transportation on 15 July 1987; sold to Great Western Railway in August 1987.
11. SN 711 was sold for scrap to Erman Corporation, Turner, Kansas, in August 1985.
12. SN 712 was donated to the Western Railway Museum at Rio Vista Junction, California, in July 1985.
13. WP 713 was donated to the Pacific Locomotive Association at Castro Point, California, in September 1984.
   

GE B23-7 -- 82 units
2250 horsepower; B-B trucks; 268,000 pounds operating weight

Road
Number
Previous
Number
Builder
Date
Builder
Number
Date To
UP Number
Date
Retired
UPY
Number
Date To
UPY Number
Notes
UP 100 MP 4600 Jan 1978 41772 11 Apr 1986 27 May 2005 UPY 2659 1 Jun 2007 1
UP 101 MP 4601 Jan 1978 41773 28 Nov 1988 16 Aug 2004 UPY 2675 14 Jul 2007 1
UP 102 MP 4602 Jan 1978 41774 20 Nov 1989 4 May 2004 UPY 2668 27 Jun 2007 1
UP 103 MP 4603 Jan 1978 41775 28 Jul 1986 20 Dec 2006     2
UP 104 MP 4604 Jan 1978 41776 16 Aug 1988 26 Dec 2001     2
UP 105 MP 4605 Jan 1978 41777 11 Feb 1987 3 Jul 2007 UPY 2657 29 May 2007 1
UP 106 MP 4606 Jan 1978 41778 5 Sep 1988 5 Jul 2007 UPY 2666 22 Jun 2007 1
UP 107 MP 4607 Jan 1978 41779 22 Jan 1988 26 Apr 2005 UPY 2678 21 Jul 2007 1, 3
UP 108 MP 4608 Jan 1978 41780 6 Jun 1988 10 Oct 2003 UPY 156 12 May 2004 4
UP 109 MP 4609 Jan 1978 41781 2 Jun 1987 4 May 2004 UPY 2306 8 Nov 2005  
UP 110 MP 4610 Oct 1978 42148 4 Mar 1987 3 Jul 2007 UPY 2661 9 Jun 2007 1
UP 111 MP 4611 Oct 1978 42149 13 Nov 1991 30 Dec 2004 UPY 2674 13 Jul 2007 1
UP 112 MP 4612 Oct 1978 42150 19 Dec 1986 20 Dec 2006     2
UP 113 MP 4613 Oct 1978 42151 19 Sep 1988 31 Oct 2002 UPY 123 23 Sep 2003 4
UP 114 MP 4614 Oct 1978 42152 31 Jan 1986 2 Aug 2007 UPY 2699 21 Jul 2007 1
UP 115 MP 4615 Oct 1978 42153 4 Aug 1990 2 Aug 2007 UPY 2676 17 Jul 2007 1
UP 116 UP 4616 Oct 1978 42154 4 Aug 1986 10 Nov 2003 UPY 2692 19 Jun 2007 1, 5
UP 117 MP 4617 Oct 1978 42155 14 Oct 1987 26 Apr 2005 UPY 2693 22 Jun 2007 1
UP 118 MP 4618 Oct 1978 42156 16 Jan 1987 3 Jul 20007 UPY 2689 29 May 2007 1
UP 119 MP 4619 Oct 1978 42157 6 Mar 1989 29 Mar 2005 UPY 2696 6 Jul 2007 1
UP 120 MP 4620 Oct 1978 42158 2 Mar 1987 26 Dec 2001     2
UP 121 MP 4621 Oct 1978 42159 31 Jul 1986 4 May 2004 UPY 2653 14 May 2007 1
UP 122 MP 4622 Oct 1978 42160 9 Oct 1986 25 Apr 2007 UPY 2641 5 Apr 2007 1, 6
UP 123 MP 4623 Nov 1978 42161 14 Mar 1991 14 May 2007 UPY 2647 29 Apr 2007 1
UP 124 MP 4624 Nov 1978 42162 29 Mar 1990 30 Aug 2006     6, 7
UP 125 MP 4625 Nov 1978 42163 4 Dec 1986 4 May 2004 UPY 2633 8 Mar 2007 1
UP 126 MP 4626 Nov 1978 42164 3 Aug 1988 3 Jul 2007 UPY 2691 5 Jun 2007 1
UP 127 MP 4627 Nov 1978 42165 20 Feb 1991 16 Aug 2004 UPY 2690 30 May 2007 1
UP 128 MP 4628 Nov 1978 42166 20 Jun 1986 28 Feb 1999     8
UP 129 MP 4629 Nov 1978 42167 4 Dec 1987 3 Jul 2007 UPY 2654 18 May 2007 1
UP 130 MP 4630 Nov 1979 42680 28 Jan 1988 26 Dec 2001     2
UP 131 MP 4631 Nov 1979 42681 7 Jul 1988 14 May 2007 UPY 2649 29 Apr 2007 1, 6
UP 132 MP 4632 Nov 1979 42682 24 Aug 1988 30 Aug 2006     6, 7
UP 133 MP 4633 Nov 1979 42683 19 Sep 1988 30 Nov 2002 UPY 122 11 Sep 2003 4
UP 134 MP 4634 Nov 1979 42684 24 Mar 1987 4 May 2004     2
UP 135 MP 4635 Nov 1979 42685 21 Jan 1987 31 Oct 2002 UPY 174 26 Jul 2004 4
(UP 136) MP 4636 Nov 1979 42686   1 Jan 1985     9
UP 137 MP 4637 Nov 1979 42687 5 Jul 1988 4 May 2004 UPY 2302 30 Sep 2005 10
UP 138 MP 4638 Nov 1979 42688 19 Jul 1988 5 Jul 2007 UPY 2665 20 Jun 2007 1
UP 139 MP 4639 Nov 1979 42689 16 Sep 1988 16 Aug 2004 UPY 2694 24 Jun 2007 1
UP 140 MP 4640 Nov 1979 42690 5 Jun 1989 (8 Apr 2007) UPY 2643 8 Apr 2007 1
UP 141 MP 4641 Nov 1979 42691 31 Mar 1988 4 May 2004 UPY 165 21 Jun 2004 4
UP 142 MP 4642 Dec 1979 42692 15 Oct 1986 25 Apr 2007
2 Aug 2007
UPY 2670 7 Jul 2007 1
UP 143 MP 4643 Dec 1979 42693 17 Nov 1987 26 Dec 2001 UPY 137 13 Feb 2004 4
UP 144 MP 4644 Dec 1979 42694 4 Sep 1991 (1 Mar 2007) UPY 2629 1 Mar 2007 1
UP 145 MP 4645 Dec 1979 42695 29 Dec 1987 17 May 2006 UPY 2645 29 Apr 2007 1
UP 146 MP 4646 Dec 1979 42696 25 Apr 1986 4 May 2004 UPY 2669 4 Jul 2007 1
UP 147 MP 4647 Dec 1979 42697 14 Mar 1989 28 Jul 2004 UPY 2651 10 May 2007 1
UP 148 MP 4648 Dec 1979 42698 30 Aug 1988 30 Nov 2004 UPY 2303 10 Oct 2005  
UP 149 MP 4649 Dec 1979 42699 6 Jan 1989 28 Jun 2005 UPY 2628 1 Mar 2007 1, 6
UP 150 MP 4650 Apr 1980 42944 1 May 1987 6 Jul 2007 UPY 2685 1 May 2007 1, 6
UP 151 MP 4651 Apr 1980 42945 29 Sep 1987 14 May 2007 UPY 2648 29 Apr 2007 1
UP 152 MP 4652 Apr 1980 42946 31 Jul 1989 26 Apr 2005 UPY 2687 23 May 2007 1, 7
UP 153 MP 4653 Apr 1980 42947 12 Oct 1987 31 Oct 2002 UPY 155 12 May 2004 4
UP 154 MP 4654 Apr 1980 42948 5 Oct 1988 20 Dec 2006     2
UP 155 MP 4655 Apr 1980 42949 26 Apr 1990 25 Apr 2007 UPY 2640 31 Mar 2007 1, 6
UP 156 MP 4656 Apr 1980 42950 20 Mar 1986 31 Oct 2002 UPY 171 16 Jul 2004 4
UP 157 MP 4657 Apr 1980 42951 22 May 1990 28 Jul 2004     2
UP 158 MP 4658 Apr 1980 42952 17 Oct 1988 24 May 2007 UPY 2686 3 May 2007 1
UP 159 MP 4659 Apr 1980 42953 9 Dec 1986 30 Aug 2006     6
UP 160 MP 4660 Jun 1980 43021 7 Jul 1987 25 Apr 2007 UPY 2642 5 Apr 2007 1
UP 161 (2nd) MP 4661 Jun 1980 43022 1 Jul 1987 26 Dec 2001 UPY 148 9 Feb 2004 4
UP 162 UP 161 (1st) Jun 1980 43023 2 Apr 1986 (29 Apr 2007) UPY 2646 29 Apr 2007 1, 11
UP 163 MP 4663 Jun 1980 43024 2 Aug 1989 (13 Mar 2007) UPY 2634 13 Mar 2007 1
UP 164 MP 4664 Jun 1980 43025 23 Sep 1987 (4 Mar 2007) UPY 2632 4 Mar 2007 1
UP 165 MP 4665 Jun 1980 43026 11 Aug 1987 26 Dec 2001 UPY 140 16 Feb 2004 5
UP 166 MP 4666 Jun 1980 43027 8 Mar 1988 3 Jul 2007 UPY 2688 12 May 2007 1
UP 170 MP 4670 Apr 1981 43533 24 Oct 1988 26 Jul 2005 UPY 2623 7 Feb 2007 1, 6
UP 171 MP 4671 Apr 1981 43534 30 Mar 1988 (10 Sep 2003) UPY 119 10 Sep 2003 4
UP 172 MP 4672 Apr 1981 43535 22 Apr 1988 26 Dec 2001 UPY 139 9 Feb 2004 4
UP 173 MP 4673 Apr 1981 43536 27 Mar 1986 26 Jul 2005 UPY 2617 24 Jan 2007 1, 6
UP 174 MP 4674 Apr 1981 43537 16 Apr 1990 6 Jul 2007 UPY 2622 7 Feb 2007 1
UP 175 MP 4675 Apr 1981 43538 27 May 1987 4 May 2004 UPY 2309 17 Dec 2005  
UP 176 MP 4676 Apr 1981 43539 22 Feb 1988 26 Jul 2005 UPY 2604 10 Nov 2006 1
UP 177 MP 4677 Apr 1981 43540 25 Jun 1987 (13 Feb 2007) UPY 2626 13 Feb 2007 1
UP 178 MP 4678 Apr 1981 43541 4 May 1988 (9 Feb 2007) UPY 2624 9 Feb 2007 1
UP 179 UP 4679 Apr 1981 43542 21 Apr 1986 30 Nov 2002     2
UP 180 MP 4680 Apr 1981 43543 22 Mar 1988 7 Mar 2007     2
UP 181 MP 4681 May 1981 43544 24 Jun 1987 26 Dec 2001 UPY 136 13 Feb 2004 4
UP 182 MP 4682 May 1981 43545 22 Sep 1987 4 May 2004 UPY 2608 29 Nov 2006 1
UP 183 MP 4683 May 1981 43546 11 Dec 1987 30 Dec 2004 UPY 2610 9 Dec 2006 1
UP 184 MP 4684 May 1981 43547 19 Jan 1988 (18 Jan 2007) UPY 2618 18 Jan 2007 1

General Notes:

a. Total of 82 MP units went to UP at merger, numbered MP 4600-4666 and 4670-4684 (three units, MP 4667-4669, were modified by MP to be B23-7Ms and were renumbered UP 257-259); numbers 167-169 are blank and not used.
b. UP 100-149 were built as MP 2289-2338, the first group of MP locomotives to carry this series; renumbered to MP 4600-4649 in 1980 to avoid conflict with road number series of new GP38-2s.
c. UP 150 (ex MP 4650) was the first of this group to be repainted to Union Pacific, completed on 31 January 1986; UP 111 (ex MP 4611) was last, completed on 13 November 1991.
d. Not equipped with dynamic braking.
e. Prior to being renumbered to their UP numbers, thirteen (13) units were repainted to UP yellow and gray, with Missouri Pacific lettering, as shown in the unit histories, below.
f. Individual unit histories.
  Road
Number
First
Number
Second
Number
Third
Number
Date To
MP Yellow
Date To
UP Number
  UP 100 MP 2289 MP 4600     11 Apr 1986
  UP 101 MP 2290 MP 4601     28 Nov 1988
  UP 102 MP 2291 MP 4602     20 Nov 1989
  UP 103 MP 2292 MP 4603     28 Jul 1986
  UP 104 MP 2293 MP 4604   7 Aug 1985 16 Aug 1988
  UP 105 MP 2294 MP 4605     11 Feb 1987
  UP 106 MP 2295 MP 4606     5 Sep 1988
  UP 107 MP 2296 MP 4607     22 Jan 1988
  UP 108 MP 2297 MP 4608   7 Mar 1985 6 Jun 1988
  UP 109 MP 2298 MP 4609     2 Jun 1987
  UP 110 MP 2299 MP 4610     4 Mar 1987
  UP 111 MP 2300 MP 4611   5 Nov 1985 13 Nov 1991
  UP 112 MP 2301 MP 4612     19 Dec 1986
  UP 113 MP 2302 MP 4613     19 Sep 1988
  UP 114 MP 2303 MP 4614     31 Jan 1986
  UP 115 MP 2304 MP 4615     4 Aug 1990
  UP 116 MP 2305 MP 4616 UP 4616   4 Aug 1986
  UP 117 MP 2306 MP 4617     14 Oct 1987
  UP 118 MP 2307 MP 4618     16 Jan 1987
  UP 119 MP 2308 MP 4619   20 Jun 1985 6 Mar 1989
  UP 120 MP 2309 MP 4620     2 Mar 1987
  UP 121 MP 2310 MP 4621     31 Jul 1986
  UP 122 MP 2311 MP 4622     9 Oct 1986
  UP 123 MP 2312 MP 4623   26 Jun 1985 14 Mar 1991
  UP 124 MP 2313 MP 4624     29 Mar 1990
  UP 125 MP 2314 MP 4625     4 Dec 1986
  UP 126 MP 2315 MP 4626     3 Aug 1988
  UP 127 MP 2316 MP 4627   31 May 1985 20 Feb 1991
  UP 128 MP 2317 MP 4628     20 Jun 1986
  UP 129 MP 2318 MP 4629     4 Dec 1987
  UP 130 MP 2319 MP 4630     28 Jan 1988
  UP 131 MP 2320 MP 4631     7 Jul 1988
  UP 132 MP 2321 MP 4632     24 Aug 1988
  UP 133 MP 2322 MP 4633     19 Sep 1988
  UP 134 MP 2323 MP 4634     24 Mar 1987
  UP 135 MP 2324 MP 4635     21 Jan 1987
  (UP 136) MP 2325 MP 4636      
  UP 137 MP 2326 MP 4637     5 Jul 1988
  UP 138 MP 2327 MP 4638     19 Jul 1988
  UP 139 MP 2328 MP 4639     16 Sep 1988
  UP 140 MP 2329 MP 4640     5 Jun 1989
  UP 141 MP 2330 MP 4641     31 Mar 1988
  UP 142 MP 2331 MP 4642     15 Oct 1986
  UP 143 MP 2332 MP 4643     17 Nov 1987
  UP 144 MP 2333 MP 4644   13 Aug 1985 4 Sep 1991
  UP 145 MP 2334 MP 4645     29 Dec 1987
  UP 146 MP 2335 MP 4646     25 Apr 1986
  UP 147 MP 2336 MP 4647     14 Mar 1989
  UP 148 MP 2337 MP 4648     30 Aug 1988
  UP 149 MP 2338 MP 4649     6 Jan 1989
  UP 150 MP 4650       1 May 1987
  UP 151 MP 4651       29 Sep 1987
  UP 152 MP 4652       31 Jul 1989
  UP 153 MP 4653     4 Oct 1984 12 Oct 1987
  UP 154 MP 4654       5 Oct 1988
  UP 155 MP 4655     21 Aug 1985 26 Apr 1990
  UP 156 MP 4656       20 Mar 1986
  UP 157 MP 4657       22 May 1990
  UP 158 MP 4658       17 Oct 1988
  UP 159 MP 4659       9 Dec 1986
  UP 160 MP 4660       7 Jul 1987
  UP 161 (2nd) MP 4661     7 Nov 1985 1 Jul 1987
  UP 162 MP 4662 UP 4662 UP 161 (1st) 22 Nov 1985 2 Apr 1986
  UP 163 MP 4663       2 Aug 1989
  UP 164 MP 4664       23 Sep 1987
  UP 165 MP 4665       11 Aug 1987
  UP 166 MP 4666       8 Mar 1988
  UP 170 MP 4670       24 Oct 1988
  UP 171 MP 4671       30 Mar 1988
  UP 172 MP 4672       22 Apr 1988
  UP 173 MP 4673       27 Mar 1986
  UP 174 MP 4674       16 Apr 1990
  UP 175 MP 4675       27 May 1987
  UP 176 MP 4676       22 Feb 1988
  UP 177 MP 4677       25 Jun 1987
  UP 178 MP 4678       4 May 1988
  UP 179 MP 4679 UP 4679   3 Dec 1985 21 Apr 1986
  UP 180 MP 4680       22 Mar 1988
  UP 181 MP 4681     26 Sep 1984 24 Jun 1987
  UP 182 MP 4682       22 Sep 1987
  UP 183 MP 4683       11 Dec 1987
  UP 184 MP 4684       19 Jan 1988

Notes:

1. A total of 50 units were retired and used as core units for rebuild to UPY 2600-series RP20GE Gen-Set units, their UPY numbers are as shown above.
2. Of 10 units retired but as yet unaccounted for, four UP (ex-MP) B23-7s were sent to Mexico, and rebuilt by Ferrovias Mexicanas S.A. de C.V., San Luis Potosi, with 3'0" gauge (.914m) C-C trucks in August, 2007 for the Carbones de Cesar 2301-2304 in Columbia. They are now considered as model C23-7. Most of the coal hauling lines in Columbia are getting new C21-EMP units from GE in Brazil, but because of a full production schedule, these units were rebuilt in Mexico. Their UP numbers are not known. (information from Allen Copeland)
3. UP 107 (ex MP 4607) is fitted with an EMD-design cab due to wreck damage repair while in service as MP 4607. (Other former MP units with EMD cabs)
4. A total of 13 units were retired and converted to UPY 100-series CCRCL unit, with CCRCL denoting Control Cab, Remote Control Locomotive.
5. UP 116 (ex MP 4616) operated as UP 4616 from 11 November 1985 until 4 August 1986, and was the first MP yellow unit to be lettered for Union Pacific; as with all other former MP units completed before July 1986, "North Little Rock" style lettering was used.
6. A total of 10 units were retired during February to July 2005 and held for rebuild; all units were reinstated on 17 August 2005, then retired again upon actual rebuild.
  Road
Number
Date
Retired
Date
Reinstated
Date
Retired
UPY Number Date To
UPY Number
  UP 122 28 Jun 2005 17 Aug 2005 25 Apr 2007 UPY 2641 5 Nov 2007
  UP 124 26 Apr 2005 17 Aug 2005 30 Aug 2006    
  UP 131 26 Apr 2005 17 Aug 2005 14 May 2007 UPY 2649 29 Apr 2007
  UP 132 26 Jul 2005 17 Aug 2005 30 Aug 2006    
  UP 149 28 Jun 2005 17 Aug 2005   UPY 2628 1 Mar 2007
  UP 150 28 Jun 2005 17 Aug 2005 6 Jul 2007 UPY 2685 1 May 2007
  UP 155 28 Feb 2005 17 Aug 2005 25 Apr 2007 UPY 2640 31 Mar 2007
  UP 159 28 Mar 2005 17 Aug 2005 30 Aug 2006    
  UP 170 26 Jul 2005 17 Aug 2005   UPY 2623 7 Feb 2007
  UP 173 26 Jul 2005 17 Aug 2005   UPY 2617 24 Jan 2007
7. UP 124, 132, and 159 were retired on 30 August 2006 due to wreck damage.
8. UP 128 (ex MP 4628) was sold to Boise Locomotive Co., Boise, Idaho, on 30 September 1999.
9. MP 4636 (assigned UP 136) was wrecked on 23 June 1984 at Camden, Arkansas; retired on 1 January 1985.
10. UP 137 was retired and used as the core unit for UPY 2302, a GG20GE "Green Goat" battery-diesel hybrid unit.
11. UP 162 (ex MP 4662) was lettered for Union Pacific, but carried its old MP number, as UP 4662, from 22 November 1985 until 13 December 1985, when it was renumbered to UP 161 (1st), although the unit wasn't actually released for service until 6 January 1986. UP 161 (1st) was renumbered to UP 162 on 2 April 1986; throughout all these various identity changes, as UP 4662, UP 161, and UP 162, the lettering style remained constant as MP's own "North Little Rock" style.
   

GE B23-7 -- 14 units
2250 horsepower; B-B trucks; 266,000 pounds operating weight

Road
Number
Previous
Number
Builder
Date
Builder
Number
Date To
UP Number
Date
Retired
UPY
Number
Date To
UPY Number
Notes
UP 185 SP 5100 Jun 1980 42979 15 Feb 2002 7 Mar 2007      
(UP 186) SP 5101 Jun 1980 42980   2 Aug 2007 UPY 2695 25 Jun 2007 1
UP 187 SP 5102 Jun 1980 42981 24 Jan 2002 25 Apr 2007 UPY 2689 29 Mar 2007 1
UP 188 SP 5103 Jun 1980 42982 15 Feb 2002 20 Dec 2006      
UP 189 SP 5105 Jun 1980 42984 22 Apr 2001 7 Mar 2007      
UP 190 SP 5106 Jun 1980 42985 25 Apr 2000 30 Aug 2006     2
(UP 191) SP 5107 Jun 1980 42986   31 Oct 2002 UPY 162 29 May 2004 3
UP 192 SP 5108 Jun 1980 42987 31 May 2001 (1 Mar 2007) UPY 2630 1 Mar 2007 1
UP 193 SP 5109 Jun 1980 42988   20 Dec 2006     4
(UP 194) SP 5110 Jun 1980 42989   3 Jul 2007 UPY 2663 15 Jun 2007 1
(UP 195) SP 5111 Jun 1980 42990   30 Sep 2004 UPY 2644 29 Apr 2007 1
(UP 196) SP 5112 Jun 1980 42991   26 Dec 2001      
UP 197 SP 5113 Jun 1980 42992 16 Dec 2001 31 Oct 2004 UPY 2637 29 Mar 2007 1
(UP 198) SP 5114 Jun 1980 42993   26 Dec 2001      

General Note:

a. Original total of 15 SP units, numbered SP 5100-5114; 14 units went to UP at merger; SP retired 5104 prior to the merger.

Note:

1. A total of six units were retired and used as core units for rebuild to UPY 2600-series RP20GE Gen-Set units; UPY numbers shown above.
2. UP 190 (ex SP 5106) was first retired on 29 March 2005 and held for rebuild; reinstated on 17 August 2005; retired on 30 August 2006, as shown above, due to wreck damage.
3. SP 5107 (assigned UP 191) was retired and converted to UPY CCRCL (Control Cab, Remote Control Locomotive) unit, completed as UPY 162 on 29 May 2004.
4. UP 193 (ex SP 5109, patched) was first retired on 9 April 2003; reinstated on (?); retired again on 20 December 2006 as shown above; shown in UP's computer as arriving at Council Bluffs, Iowa on 19 January 2007; further disposition unknown.
   

GE B30-7A -- 55 units
3000 horsepower; B-B trucks; 268,000 pounds operating weight

Road
Number
Previous
Number
Builder
Date
Builder
Number
Date To
UP Number
Date
Retired
UPY
Number
Date To
UPY Number
Notes
UP 200 MP 4800 Nov 1981 43735 3 Jun 1988 20 Dec 2006      
UP 201 MP 4801 Nov 1981 43736 16 Jul 1990 20 Dec 2006      
UP 202 MP 4802 Nov 1981 43737 7 Mar 1986 7 Mar 2007      
UP 203 MP 4803 Nov 1981 43738 5 Jan 1988 20 Dec 2006      
UP 204 MP 4804 Nov 1981 43739 11 Sep 1986 4 May 2004 UPY 2301 9 Sep 2005 1
UP 205 MP 4805 Nov 1981 43740 17 Jan 1987 26 Dec 2001      
UP 206 MP 4806 Nov 1981 43741 11 Sep 1990 (28 Jan 2007) UPY 2619 28 Jan 2007 2
UP 207 MP 4807 Nov 1981 43742 14 Sep 1987 7 Mar 2007      
UP 208 MP 4808 Nov 1981 43743 6 Dec 1985 7 Mar 2007     3
UP 209 MP 4809 Nov 1981 43744 27 Oct 1987 29 Mar 2005 UPY 2655 19 May 2007 2
UP 210 MP 4810 Nov 1981 43745 8 May 1986 30 Nov 2002 UPY 109 23 Jul 2003 4
UP 211 MP 4811 Nov 1981 43746 28 Nov 1990 28 Feb 2005 UPY 2664 19 Jun 2007 2
UP 212 MP 4812 Dec 1981 43747 4 Feb 1988 31 Oct 2002 UPY 110 23 Jul 2003 4
UP 213 MP 4813 Dec 1981 43748 14 Oct 1987 26 Dec 2001 UPY 135 13 Feb 2004 4
UP 214 MP 4814 Dec 1981 43749 21 Dec 1987 20 Dec 2006      
UP 215 MP 4815 Dec 1981 43750 2 May 1988 7 Mar 2007      
UP 216 MP 4816 Dec 1981 43751 24 Nov 1987 18 Jun 2001 UPY 2627 1 Mar 2007 2
UP 217 MP 4817 Dec 1981 43752 29 Apr 1986 28 Feb 2002 UPY 124 23 Sep 2003 4
UP 218 MP 4818 Dec 1981 43753 8 Jun 1989 (29 Dec 2006) UPY 2613 29 Dec 2006 2
UP 219 MP 4819 Dec 1981 43754 26 Feb 1987 (28 Jan 2007) UPY 2620 28 Jan 2007 2
UP 220 MP 4820 Dec 1981 43755 23 Sep 1986 20 Dec 2006      
UP 221 MP 4821 Dec 1981 43756 3 Dec 1987 28 Feb 2002 UPY 2308 12 Dec 2005 1
UP 222 MP 4822 Dec 1981 43757 14 Feb 1986 29 Mar 2005 UPY 2672 7 Jul 2007 2
UP 223 MP 4823 Dec 1981 43758 2 Nov 1988 7 Mar 2007      
UP 224 MP 4824 Dec 1981 43759 31 Mar 1989 20 Dec 2006      
UP 225 MP 4825 Dec 1981 43760 30 Jan 1990 30 Aug 2006 UPY 2677 19 Jul 2007 2, 5
UP 226 MP 4826 Dec 1981 43761 21 May 1986 10 Oct 2003 UPY 146 9 Feb 2004 4
UP 227 MP 4827 Dec 1981 43762 29 Sep 1986 (24 Jan 2007) UPY 2621 24 Jan 2007 2, 6
UP 228 MP 4828 Dec 1981 43763 25 Aug 1986 (12 Dec 2006) UPY 2612 12 Dec 2006 2, 6
UP 229 MP 4829 Dec 1981 43764 11 Jan 1988 7 Mar 2007      
UP 230 MP 4830 Jan 1982 43765 23 May 1986 10 Oct 2003 UPY 130 13 Feb 2004 4
UP 231 MP 4831 Jan 1982 43766 7 Jan 1987 20 Dec 2006      
UP 232 MP 4832 Jan 1982 43767 8 Aug 1986 7 Mar 2007      
UP 233 MP 4833 Jan 1982 43768 28 Mar 1988 20 Dec 2006      
UP 234 MP 4834 Jan 1982 43769 18 Jul 1989 26 Jul 2005 UPY 2606 31 Oct 2006 2
UP 235 MP 4835 Jan 1982 43586 20 Mar 1986 30 Oct 2003 UPY 175 19 Nov 2004 4
UP 236 MP 4836 Jan 1982 43587 4 Oct 1990 (22 Nov 2006) UPY 2609 22 Nov 2006 2
UP 237 MP 4837 Jan 1982 43588 13 May 1988 26 Dec 2001 UPY 2616 31 Dec 2006 2
UP 238 MP 4838 Jan 1982 43589 6 Nov 1986 (29 Dec 2006) UPY 2611 29 Dec 2006 2, 6
UP 239 MP 4839 Jan 1982 43590 8 May 1989 31 Jan 2005 UPY 2682 29 Jul 2007  
UP 240 MP 4840 Jan 1982 43591 17 Oct 1986 7 Mar 2007      
UP 241 MP 4841 Jan 1982 43592 24 Feb 1986 (18 Jan 2007) UPY 2615 18 Jan 2007 2
UP 242 MP 4842 Jan 1982 43593 31 Oct 1989 26 Dec 2001      
UP 243 MP 4843 Jan 1982 43594 3 May 1988 20 Dec 2006 UPY 2603 31 Oct 2006 2
UP 244 UP 4844 Jan 1982 43595 3 Apr 1986 30 Aug 2006     5, 7
UP 245 MP 4845 Feb 1982 43596 7 Feb 1987 30 Nov 2004      
UP 246 MP 4846 Feb 1982 43597 15 Sep 1986 27 May 2005 UPY 2607 2 Dec 2006 2
UP 247 MP 4847 Feb 1982 43598 2 Jul 1986 30 Nov 2003      
UP 248 MP 4848 Feb 1982 43599 7 Jul 1989 26 Dec 2001      
UP 249 MP 4849 Feb 1982 43674 16 Jul 1987 10 Oct 2003 UPY 131 13 Feb 2004 4
UP 250 MP 4850 Feb 1982 43675 23 Feb 1990 (4 Mar 2007) UPY 2631 4 Mar 2007 2
UP 251 MP 4851 Feb 1982 43676 1 Jun 1989 15 Jul 2002 UPY 161 29 May 2004 4
UP 252 MP 4852 Feb 1982 43677 22 Apr 1988 (9 Feb 2007) UPY 2625 9 Feb 2007 2, 6
UP 253 MP 4853 Feb 1982 43678 14 Nov 1986 (1 Jun 2004) UPY 160 1 Jun 2004 4
UP 254 MP 4854 Feb 1982 43679 24 Jun 1986 30 Nov 2002 UPY 128 13 Feb 2004 4

General Notes:

a. Total of 55 MP units went to UP at merger, numbered MP 4800-4854.
b. The 'A' part of the model designation (B30-7A) denotes special 12-cylinder diesel engine used to produce 3000 HP, rather than standard 16-cylinder engine.
c. UP 208 (ex MP 4808) was the first of this group to be repainted to Union Pacific, completed on 6 December 1985; UP 211 (ex MP 4811) was the last, completed on 28 November 1990.
d. Not equipped with dynamic braking.
e. Individual unit histories:
  Road
Number
First
Number
Second
Number
Date To
MP Yellow
Date To
UP Number
  UP 200 MP 4800   21 Jun 1984 3 Jun 1988
  UP 201 MP 4801   21 Jun 1985 16 Jul 1990
  UP 202 MP 4802     7 Mar 1986
  UP 203 MP 4803     5 Jan 1988
  UP 204 MP 4804     11 Sep 1986
  UP 205 MP 4805   27 Feb 1985 17 Jan 1987
  UP 206 MP 4806   11 Feb 1985 11 Sep 1990
  UP 207 MP 4807     14 Sep 1987
  UP 208 MP 4808     6 Dec 1985
  UP 209 MP 4809     27 Oct 1987
  UP 210 MP 4810     8 May 1986
  UP 211 MP 4811   30 Apr 1985 28 Nov 1990
  UP 212 MP 4812   16 Jan 1985 4 Feb 1988
  UP 213 MP 4813     14 Oct 1987
  UP 214 MP 4814     21 Dec 1987
  UP 215 MP 4815   20 Jan 1985 2 May 1988
  UP 216 MP 4816   25 Oct 1984 24 Nov 1987
  UP 217 MP 4817     29 Apr 1986
  UP 218 MP 4818   17 Jul 1985 8 Jun 1989
  UP 219 MP 4819   12 Jan 1985 26 Feb 1987
  UP 220 MP 4820     23 Sep 1986
  UP 221 MP 4821     3 Dec 1987
  UP 222 MP 4822     14 Feb 1986
  UP 223 MP 4823   23 Jul 1985 2 Nov 1988
  UP 224 MP 4824   16 Oct 1985 31 Mar 1989
  UP 225 MP 4825     30 Jan 1990
  UP 226 MP 4826     21 May 1986
  UP 227 MP 4827     29 Sep 1986
  UP 228 MP 4828     25 Aug 1986
  UP 229 MP 4829     11 Jan 1988
  UP 230 MP 4830     23 May 1986
  UP 231 MP 4831   10 Jul 1985 7 Jan 1987
  UP 232 MP 4832     8 Aug 1986
  UP 233 MP 4833   7 Jan 1985 28 Mar 1988
  UP 234 MP 4834   15 Jul 1985 18 Jul 1989
  UP 235 MP 4835     20 Mar 1986
  UP 236 MP 4836   7 Nov 1984 4 Oct 1990
  UP 237 MP 4837     13 May 1988
  UP 238 MP 4838     6 Nov 1986
  UP 239 MP 4839   15 May 1985 8 May 1989
  UP 240 MP 4840     17 Oct 1986
  UP 241 MP 4841     24 Feb 1986
  UP 242 MP 4842     31 Oct 1989
  UP 243 MP 4843     3 May 1988
  UP 244 MP 4844 UP 4844   3 Apr 1986
  UP 245 MP 4845   10 Sep 1985 7 Feb 1987
  UP 246 MP 4846     15 Sep 1986
  UP 247 MP 4847     2 Jul 1986
  UP 248 MP 4848     7 Jul 1989
  UP 249 MP 4849     16 Jul 1987
  UP 250 MP 4850   18 Jul 1985 23 Feb 1990
  UP 251 MP 4851   8 Mar 1985 1 Jun 1989
  UP 252 MP 4852   21 Aug 1984 22 Apr 1988
  UP 253 MP 4853     14 Nov 1986
  UP 254 MP 4854     24 Jun 1986

Notes:

1. Two units (UP 204 and 221) were retired and used as core units for rebuild to UPY 2300-series GG20GE "Green Goat" battery-diesel hybrid units; UPY numbers shown above.
2. A total of 22 units were retired and used as core units for rebuild to UPY 2600-series RP20GE Gen-Set units; UPY numbers shown above.
3. UP 208 (ex MP 4808) was the first MP unit to be painted yellow and gray, with Union Pacific lettering, and a new UP number, using North Little Rock style lettering; although completed on 6 December 1985, the unit actually left the shop on 6 January 1986.
4. A total of 11 units were retired and converted to UPY 100-series CCRCL (Control Cab, Remote Control Locomotive) units; UPY numbers shown above.
5. UP 225 and 244 were retired due to wreck damage.
6. A total of four units were retired in February to June 2005 and held for rebuild; reinstated for regular service on 17 August 2005, then retired again upon actual rebuild.
  Road
Number
Date
Retired
Date
Reinstated
Date
Retired
UPY Number Date To
UPY Number
  UP 227 29 Mar 2005 17 Aug 2005 (24 Jan 2007) UPY 2621 24 Jan 2007
  UP 228 28 Jun 2005 17 Aug 2005 (12 Dec 2006) UPY 2612 12 Dec 2006
  UP 238 27 May 2005 17 Aug 2005 (29 Dec 2006) UPY 2611 29 Dec 2006
  UP 252 28 Feb 2005 17 Aug 2005 (9 Feb 2007) UPY 2625 9 Feb 2007
7. UP 244, as MP 4844, was painted yellow and gray, and renumbered and relettered from MP 4844 to UP 4844, on 27 November 1985. UP 4844 was renumbered to UP 244 five months later, on 3 April 1986; both repaints used North Little Rock lettering.
   

GE B23-7M -- 3 units
3000 horsepower; B-B trucks; 268,000 pounds operating weight

Road
Number
Previous
Number
Builder
Date
Builder
Number
Date To
MP Yellow
Date To
UP Number
Date
Retired
UPY
Number
Date To
UPY Number
Notes
UP 257 MP 4667 Jun 1980 43028 29 Mar 1985 28 Jan 1987 28 Jun 2005 UPY 2318 21 Sep 2006 1
UP 258 MP 4668 Jun 1980 43029 26 Sep 1985 29 Sep 1988 (23 Sep 2003) UPY 125 23 Sep 2003 2
UP 259 MP 4669 Jun 1980 43030 22 Jul 1985 21 Dec 1989 4 May 2004 UPY 164 16 Jun 2004 3

General Notes:

a. Total of three MP units went to UP at merger, numbered MP 4667-4669.
b. Originally built as 2300-horsepower units; upgraded by MP to 3000 horsepower.
c. Not equipped with dynamic braking.

Notes:

1. UP 257 was retired and used as the core unit for UPY 2318, a "Green Goat" battery-diesel hybrid unit, completed on 21 September 2006.
2. UP 258 was retired and converted to CCRCL for remote control yard switching operations, completed and renumbered to UPY 125 on 23 September 2003.
3. UP 259 was retired and converted to CCRCL for remote control yard switching operations, completed and renumbered to UPY 164 on 16 June 2004.
   

EMD GP9 -- 75 units
1750 horsepower; B-B trucks; 246,500 pounds operating weight

Road
Number
Builder
Date
Builder
Number
Date
Retired

Notes
UP 130 Feb 1954 19131 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to C&NW in April 1977, rebuilt to C&NW GP7R 4389 June 1977; sold to OmniTRAX in February 1991; to Northern Ohio & Western 4389.
UP 131 Feb 1954 19132 1 Jul 1982 Sold to Colorado & Eastern Railway in March 1983; sold for scrap to Pielet Brothers Scrap Iron & Metal, McCook, Illinois 7 August 1988.
UP 132 Feb 1954 19133 Jan 1982 Sold to Bargains Galore, Vancouver, Washington in July 1982; scrapped by Joseph Simon & Sons, Tacoma, Washington.
UP 133 Feb 1954 19134 Nov 1978 Wrecked in August 1978 at Pocatello, Idaho; scrapped by UP at Pocatello, Idaho, during November 1978.
UP 134 Feb 1954 19135 Jun 1980 Sold to Naporano Iron & Metal, Newark, New Jersey, 24 February 1981; sold to Boston & Maine in July 1981. Part of car body, frame and trucks used to construct B&M class MT4 road slug 100, completed in February 1983. Equipped with D77 traction motors, with weight of 263,000 pounds. Operated with two B&M GP40s.
UP 135 Feb 1954 19136 Oct 1977 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1977; sold to ICG, rebuilt to ICG GP11 8745 in June 1980.
UP 136 Feb 1954 19137 Jan 1983 Sold for scrap to Erman Corporation, Turner, Kansas in October 1983.
UP 137 Feb 1954 19138 Jan 1983 Sold for scrap to Erman Corporation, Turner, Kansas in October 1983.
UP 138 Feb 1954 19139 2 Nov 1982 Sold for scrap to Erman Corporation, Turner, Kansas in May 1983.
UP 139 Feb 1954 19140 Feb 1983 Sold for scrap to Joseph Simon & Sons, Tacoma, Washington in August 1984.
UP 140 Feb 1954 19141 Nov 1974 Wrecked (flood damage) in October 1974 at Sugar City, Idaho; stored at Pocatello, Idaho, until retired and sold to Precision National on 24 January 1975; rebuilt by Morrison Knudsen for Precision in May 1975 (completed on 24 May 1975), and leased to CRI&P as 4430; sold to C&NW 4105 in April 1981.
UP 141 Feb 1954 19142 May 1979 Sold for scrap to Naporano Iron & Metal, Newark, New Jersey in July 1980.
UP 142 Feb 1954 19143 6 Mar 1980 Sold for scrap to Naporano Iron & Metal, Newark, New Jersey, 7 January 1981.
UP 143 Feb 1954 19144 Nov 1980 Sold to Precision National Corporation, Mount Vernon, Illinois 27 March 1981; scrapped.
UP 144 Feb 1954 19145 Nov 1974Wrecked (flood damage) in October 1974 at Sugar City, Idaho; stored at Pocatello, Idaho, until retired and sold to Precision National on 24 January 1975; rebuilt by Morrison Knudsen for Precision in May 1975 (completed on 14 May 1975), and leased to CRI&P as 4429; sold to C&NW 4104 in March 1981.
UP 145 Feb 1954 19146 Dec 1978 Sold to Naporano Iron & Metal, Newark, New Jersey, 20 September 1979; sold to ATSF in March 1980, rebuilt to ATSF yard slug 116, completed on 12 September 1980.
UP 146 Feb 1954 19147 Mar 1981 Sold to Bargains Galore, Vancouver, Washington 20 July 1981; scrapped by Joseph Simon & Sons, Tacoma, Washington.
UP 147 Feb 1954 19148 Aug 1978 Wrecked; sold to Precision National Corporation, Mount Vernon, Illinois 23 January 1979, rebuilt and sold to U.S. Department of Transportation 005, Pueblo, Colorado, in February 1980.
UP 148 Feb 1954 19149 6 Mar 1980 Sold to L. G. Everist, 2 December 1980, lettered for Dakota & Iowa Railroad 1 in early 1982.
UP 149 Feb 1954 19150 Sep 1980 Sold for scrap to Naporano Iron & Metal, Newark, New Jersey, 24 February 1981.
UP 150 Feb 1954 19151 May 1985 Sold for scrap to Erman Corporation, Turner, Kansas, 5 September 1985.
UP 151 Feb 1954 19152 7 Nov 1983 Sold for scrap to St. Louis Auto Shredding, East St. Louis, Illinois in December 1984.
UP 152 Feb 1954 19153 30 Dec 1982 Sold for scrap to Erman Corporation, Turner, Kansas in October 1983.
UP 153 Feb 1954 19154 Apr 1982 Scrapped by UP at Omaha, Nebraska, in October 1982.
UP 154 Feb 1954 19155 2 Nov 1982 Sold for scrap to Erman Corporation, Turner, Kansas in October 1983.
UP 155 Feb 1954 19156 May 1979 Sold to Morrison Knudsen on 9 October 1979; rebuilt and sold to Kyle Railways, 21 March 1980, painted San Diego & Arizona Eastern 102, San Diego, California, later moved to Kyle's operations in Kansas.
UP 156 Feb 1954 19157 18 Mar 1985 Sold to Bargains Galore, Vancouver, Washington 27 February 1986; scrapped by General Metals, Tacoma, Washington in May 1986.
UP 157 Feb 1954 19158 Dec 1980 Sold to Bargains Galore, Vancouver, Washington 28 April 1981; scrapped by Joseph Simon & Sons, Tacoma, Washington in June 1981.
UP 158 Mar 1954 19159 Oct 1979 Sold to Bargains Galore, Vancouver, Washington in July 1980; scrapped by Joseph Simon & Sons, Tacoma, Washington in September 1980.
UP 159 Mar 1954 19160 Oct 1964 Wrecked on 9 June 1964 at Stauffer, Wyoming; direct trade-in to EMD in 1965 on DDA35 84.
UP 160 Mar 1954 19161 23 Nov 1982 Sold for scrap to Erman Corporation, Turner, Kansas in December 1984.
UP 161 Mar 1954 19162 May 1978 Sold to Naporano Iron & Metal, Newark, New Jersey in January 1979; sold during early 1979 to Southern Rails, Inc.
UP 162 Mar 1954 19163 Feb 1979 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1979, rebuilt and sold to U.S. Department of Transportation 006, Pueblo, Colorado completed February 1980.
UP 163 Mar 1954 19164 Mar 1981 Sold to Precision National Corporation, Mount Vernon, Illinois 15 June 1981.
UP 164 Mar 1954 19165 Jun 1980 Sold to Precision National Corporation, Mount Vernon, Illinois 13 January 1981.
UP 165 Mar 1954 19166 15 Mar 1984 Stripped of usable parts by UP at Omaha, Nebraska, in January 1985, long hood portion of car body (on a flat car) sold to Precision National Corporation, Mount Vernon, Illinois in April 1987, frame sold for scrap to David J. Joseph Co., Plymouth, Utah, 3 June 1987.
UP 166 Mar 1954 19167 Sep 1979 Wrecked near Grand Island, Nebraska, during mid-July 1977; sold to Rail Car Corporation in May 1980, stored in Denver, Colorado
UP 167 Mar 1954 19168 18 Mar 1985 Sold for scrap to Erman Corporation, Turner, Kansas in August 1985.
UP 168 Mar 1954 19169 8 Sep 1981 Sold for scrap to Azcon Hyman Michaels, Alton, Illinois in February 1982.
UP 169 Mar 1954 19170 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1976; sold to C&NW in April 1977, rebuilt to C&NW GP7R 4386 in June 1977.
UP 170 Mar 1954 19171 May 1983 Sold for scrap to Naporano Iron & Metal, Newark, New Jersey in February 1984.
UP 171 Mar 1954 19172 Oct 1979 Sold to Precision National Corporation, Mount Vernon, Illinois in July 1980.
UP 172 Mar 1954 19173 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in November 1976; used in national lease service as PNL 1720.
UP 173 Mar 1954 19174 Oct 1980 Sold to Precision National Corporation, Mount Vernon, Illinois 13 January 1981.
UP 174 Mar 1954 19175 Jul 1979 Sold for scrap to Naporano Iron & Metal, Newark, New Jersey in February 1980.
UP 175 Mar 1954 19176 18 Mar 1985 Sold for scrap to Erman Corporation, Turner, Kansas, 30 August 1985.
UP 176 Mar 1954 19177 Mar 1977 Sold to Precision National Corporation, Mount Vernon, Illinois in May 1977.
UP 177 Mar 1954 19178 Feb 1983 Sold for scrap to Erman Corporation, Turner, Kansas in September 1983.
UP 178 Mar 1954 19179 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1976; sold to C&NW in April 1977, rebuilt to C&NW GP7R 4393 in July 1977.
UP 179 Mar 1954 19180 Dec 1978 Sold to ICG, 10 July 1979. Still at ICG-Paducah during early 1984.
UP 180 Mar 1954 19181 30 Dec 1982 Sold for scrap to Durbano, Ogden, Utah, 4 November 1983.
UP 181 Mar 1954 19182 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1976; sold to C&NW in April 1977, rebuilt to C&NW GP7R 4397 in September 1977; sold to Relco RE 1617 in April 1990.
UP 182 Mar 1954 19183 Jun 1980 Scrapped by UP at Omaha, Nebraska, in June 1980.
UP 183 Apr 1954 19184 Oct 1969 Wrecked; traded to EMD in October 1969.
UP 184 Apr 1954 19185 Mar 1980 Sold for scrap to Azcon Hyman Michaels, Alton, Illinois 2 April 1981.
UP 185 Apr 1954 19186 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in November 1976, rebuilt and sold to Amtrak 764 in May 1978.
UP 186 Apr 1954 19187 Oct 1979 Sold to Precision National Corporation, Mount Vernon, Illinois in July 1980.
UP 187 Apr 1954 19188 Oct 1983 Sold for scrap to St. Louis Auto Shredding, East St. Louis, Illinois in December 1984.
UP 188 Apr 1954 19189 18 Mar 1985 Sold for scrap to Erman Corporation, Turner, Kansas in August 1985.
UP 189 Apr 1954 19190 Oct 1983 Sold for scrap to Erman Corporation, Turner, Kansas in January 1985.
UP 190 Apr 1954 19191 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1976; sold to C&NW in April 1977, rebuilt to C&NW GP7R 4391 in July 1977; sold to Relco RE1615 in April 1990; scrapped by Relco in August 1993.
UP 191 Apr 1954 19192 Aug 1980 Sold to Precision National Corporation, Mount Vernon, Illinois 5 January 1981.
UP 192 Apr 1954 19193 Jan 1981 Sold for scrap to Naporano Iron & Metal, Newark, New Jersey, 5 May 1981.
UP 193 Apr 1954 19194 15 Mar 1984 Sold for scrap to Durbano, Ogden, Utah in June 1984.
UP 194 Apr 1954 19195 May 1979 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1979.
UP 195 Apr 1954 19196 May 1985 Sold for scrap to Durbano, Ogden, Utah, 15 November 1985.
UP 196 Apr 1954 19197 Oct 1977 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1977.
UP 197 Apr 1954 19198 15 Mar 1984 Sold to Iowa Railroad (for parts) in June 1984; heavily cannibalized by the time Iowa Interstate took over in November 1984. Stored at Atlantic City, Iowa.
UP 198 Apr 1954 19199 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to C&NW in April 1977, rebuilt to C&NW GP7R 4379 in May 1977.
UP 199 Apr 1954 19200 Oct 1964 Wrecked on 9 June 1964 at Stauffer, Wyoming; scrapped.
UP 200 Apr 1954 19201 6 Mar 1980 Sold to Rail Car Corporation, Denver, Colorado, in May 1980; sold to Dixie Railroad, Sylva, N.C., in August 1987; sold to Great Smoky Mountain Railroad 200 in September 1988.
UP 201 Apr 1954 19202 Oct 1977 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1977; used in national lease service as PNL 201, painted in Precision's standard yellow and green paint scheme.
UP 202 Apr 1954 19203 15 Mar 1984 Sold for scrap to Durbano, Ogden, Utah in June 1984.
UP 203 Apr 1954 19204 Oct 1979 Sold for scrap to Naporano Iron & Metal, Newark, New Jersey in July 1980.
UP 204 Apr 1954 19205   Renumbered to UP 249 in August 1955 and leased (along with UP 245-248) to the Camas Prairie Railroad, Lewiston, Idaho.

General Notes:

a. UP 151 was EMD's 15,000 locomotive. (see Railway Age, March 15, 1954, page 14)
b. Built on EMD order number 5321, with frame numbers 5321-1 to 5321-75.
   

EMD GP9B -- 75 units
1750 horsepower; B-B trucks; 244,400 pounds operating weight

Road
Number
Builder
Date
Builder
Number
Date
Retired

Notes
UP 130B Feb 1954 19206 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976.
UP 131B Feb 1954 19207 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976.
UP 132B Feb 1954 19208 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976.
UP 133B Feb 1954 19209 Jun 1976 Traded to EMD, 17 June 1976.
UP 134B Feb 1954 19210 May 1978 Sold to Naporano Iron & Metal, Newark, New Jersey in November 1978; sold to ATSF in May 1979, rebuilt to ATSF yard slug 124, 19 December 1979.
UP 135B Feb 1954 19211 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8308, completed on 3 September 1977.
UP 136B Feb 1954 19212 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8057, completed on 28 October 1977.
UP 137B Feb 1954 19213 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8302, completed on 18 August 1977; sold to Paducah & Louisville.
UP 138B Feb 1954 19214 May 1978 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1978.
UP 139B Feb 1954 19215 Jul 1976 Traded to EMD, 13 July 1976.
UP 140B Feb 1954 19216 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976.
UP 141B Feb 1954 19217 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8156 in May 1977.
UP 142B Feb 1954 19218 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8304, completed on 25 August 1977; sold to VMV; sold to US Army 4608 in February 1992.
UP 143B Feb 1954 19219 May 1978 Sold to Naporano Iron & Metal, Newark, New Jersey in November 1978; sold to ATSF, rebuilt to ATSF yard slug 117, 31 July 1980.
UP 144B Feb 1954 19220 Jun 1976 Traded to EMD, 29 June 1976.
UP 145B Feb 1954 19221 Jul 1976 Traded to EMD, 17 July 1976.
UP 146B Feb 1954 19222 Jun 1976 Traded to EMD, 4 June 1976.
UP 147B Feb 1954 19223 Jun 1976 Traded to EMD, 4 June 1976.
UP 148B Feb 1954 19224 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976.
UP 149B Feb 1954 19225 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976.
UP 150B Feb 1954 19226 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; scrapped.
UP 151B Feb 1954 19227 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976.
UP 152B Feb 1954 19228 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8310, completed on 22 September 1977.
UP 153B Feb 1954 19229 Jun 1976 Traded to EMD, 21 June 1976.
UP 154B Feb 1954 19230 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8174 in May 1977.
UP 155B Feb 1954 19231 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8311, completed on 23 September 1977.
UP 156B Feb 1954 19232 Oct 1977 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1977; scrapped.
UP 157B Feb 1954 19233 May 1978 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1978.
UP 158B Feb 1954 19234 May 1978 Sold to Naporano Iron & Metal, Newark, New Jersey in November 1978; sold to ATSF in May 1979, rebuilt to AT&SF yard slug 125, completed on 15 January 1980; to AT&SF 1125; to BNSF 36; to BNSF 3966.
UP 159B Feb 1954 19235 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8089, completed on 22 November 1977.
UP 160B Feb 1954 19236 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8325, completed on 23 November 1977.
UP 161B Feb 1954 19237 Jun 1976 Traded to EMD, 25 June 1976.
UP 162B Mar 1954 19238 Jun 1976 Traded to EMD, 25 June 1976.
UP 163B Mar 1954 19239 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8091, completed on 13 July 1977; sold to National Railway Equipment, leased to Twin Cities & Western 407 in July 1991.
UP 164B Mar 1954 19240 May 1978 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1978.
UP 165B Mar 1954 19241 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8312, completed on 27 September 1977.
UP 166B Mar 1954 19242 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8214 in June 1977.
UP 167B Mar 1954 19243 Jul 1976 Traded to EMD, 12 July 1976.
UP 168B Mar 1954 19244 Jun 1976 Traded to EMD, 9 June 1976.
UP 169B Mar 1954 19245 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976.
UP 170B Mar 1954 19246 Jun 1976 Traded to EMD, 29 June 1976.
UP 171B Mar 1954 19247 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8240, completed on 23 June 1977; sold to VMV; sold to US Army 4610 in March 1992.
UP 172B Mar 1954 19248 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976.
UP 173B Mar 1954 19249 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8305, completed on 31 August 1977.
UP 174B Mar 1954 19250 Oct 1977 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1977.
UP 175B Mar 1954 19251 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976.
UP 176B Mar 1954 19252 Aug 1973 Rebuilt by UP's Omaha shops to UP yard slug S1 in December 1973.
UP 177B Mar 1954 19253 Jun 1976 Traded to EMD, 4 June 1976.
UP 178B Mar 1954 19254 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8086, completed on 20 October 1977.
UP 179B Mar 1954 19255 Oct 1977 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1977.
UP 180B Mar 1954 19256 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8462, completed on 9 June 1977; sold to VMV; sold to US Army 4609 in February 1992.
UP 181B Mar 1954 19257 Jun 1976 Traded to EMD, 29 June 1976.
UP 182B Mar 1954 19258 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976.
UP 183B Mar 1954 19259 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8330, completed 7 December 1977.
UP 184B Apr 1954 19260 May 1978 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1978.
UP 185B Apr 1954 19261 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976.
UP 186B Apr 1954 19262 May 1978 Sold to ICG in November 1978; rebuilt to ICG GP11 8704 in June 1979.
UP 187B Apr 1954 19263 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976.
UP 188B Apr 1954 19264 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8314, completed on 4 October 1977.
UP 189B Apr 1954 19265 Jun 1976 Traded to EMD, 4 June 1976.
UP 190B Apr 1954 19266 Jun 1976 Traded to EMD, 21 June 1976.
UP 191B Apr 1954 19267 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8324, completed on 18 November 1977.
UP 192B Apr 1954 19268 Jun 1976 Traded to EMD, 24 June 1976.
UP 193B Apr 1954 19269 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8309, completed on 19 September 1977.
UP 194B Apr 1954 19270 Oct 1977 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1977.
UP 195B Apr 1954 19271 Jun 1976 Traded to EMD, 18 June 1976.
UP 196B Apr 1954 19272 Jun 1976 Traded to EMD, 23 June 1976.
UP 197B Apr 1954 19273 Oct 1977 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1977.
UP 198B Apr 1954 19274 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976.
UP 199B Apr 1954 19275 Jul 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976.
UP 200B Apr 1954 19276 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976.
UP 201B Apr 1954 19277 Jun 1976 Traded to EMD, 4 June 1976.
UP 202B Apr 1954 19278 Sep 1976 Sold to Precision National Corporation, Mount Vernon, Illinois in September 1976; sold to ICG, rebuilt to ICG GP10 8054, completed on 25 October 1977.
UP 203B Apr 1954 19279 Jun 1976 Traded to EMD, 4 June 1976.
UP 204B Apr 1954 19280 Oct 1977 Sold to Precision National Corporation, Mount Vernon, Illinois in October 1977.

General Notes:

a. UP 185B was equipped with AiResearch turbochargers in April 1956 and was the second unit (UP 281 and UP 261 were the first and third units respectively) to be turbocharged in UP's turbocharging program of 1955-56. The turbochargers were removed in 1962 or 1963, with the unit being rebuilt back to a standard GP9. (Read more about UP's GP9 turbocharging program)
b. UP 202B and 203B had roof-top Farr air filter enclosures, applied at Salt Lake City in early 1974.
c. Ten UP GP9Bs, along with eight SD45s, leased to C&NW from January to July 1974. Included were 134B, 155B, 160B, 161B, 162B, 165B, 167B, 179B, 188B, and 196B.
d. The units rebuilt by ICG to "GP10s" at their Paducah, Kentucky, shops were totally remanufactured, including new, fabricated cabs converting them to A-units.
e. Built on EMD order number 5321, frame numbers 5321-B1 to B75. (changed from showing frame numbers as 5321-B76 to 5321-B150, per email from Larry Russell, dated June 1, 2005, based on numerous confirming frame checks.)

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