Union Pacific Railroad

Roster of Diesel and Turbine Locomotives, 1934-2009

This page was last updated on December 10, 2022.

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 701 was in service at a grain elevator north of Alton, Iowa; still there as of November 2021; frame number 6483-1 confirmed.
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; sold for scrap to Joseph Simon & Sons, Tacoma, Washington, still there in August 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; leased to Alter Metal Recycling, Council Bluffs, Iowa (date?, about 2010-2011); still there at the time of a Google Earth satellite photo dated June 2022.
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 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 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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