All Time UP Diesel Roster, Part 8

Alco PA-1 — 8 units
2000 horsepower; A1A-A1A trucks; operating weight (see general note, below)

Road Number	First Number	Builder Date	Builder Number	Date Retired	Notes
UP 600	UP 994A	Sep 1947	74692	Aug 1964	(disposition unknown)
UP 601	UP 995A	Sep 1947	74693	Aug 1964	(disposition unknown)
UP 602	UP 996A	Sep 1947	74694	Aug 1964	(disposition unknown)
UP 603	UP 997A	Sep 1947	74695	May 1965	Traded to EMD in May 1965.
UP 604		Jan 1949	76308	May 1965	Traded to EMD in May 1965.
UP 605		Jan 1949	76309	Sep 1965	Traded to EMD in September 1965.
UP 606		Jan 1949	76310	Sep 1965	Traded to EMD in September 1965.
UP 607		Jan 1949	76311	Mar 1961	Renumbered to UP 80, as control unit for Coal Burning Turbine in October 1962.

General Notes:

a.	UP 600-603 built as UP 994A-997A, renumbered to UP 600-603 in March 1948.
b.	Equipped with steam generators for passenger service; retired in place on locomotive upon reassignment to freight service in 1958.
c.	Built as passenger locomotives, reassigned to freight service in 1958 upon deliveries of EMD E9s; re-ballasted from 314,000 pounds operating weight (209,200 pounds weight on drivers) to 356,000 pounds operating weight (238,000 pounds weight on drivers); gear ratio changed from 60:23 to 74:18.
d.	UP 600-603 had Alco order number S-3100.
e.	UP 604-607 had Alco order number S-3079.

Alco PB-1 — 6 units
2000 horsepower; A1A-A1A trucks; operating weight (see general note, below)

Road Number	First Number	Builder Date	Builder Number	Date Retired	Notes
UP 600B	UP 998B	Sep 1947	75341	Sep 1965	Traded to EMD in September 1965.
UP 602B	UP 999B	Sep 1947	75342	Sep 1965	Traded to EMD in September 1965.
UP 604B		Jan 1949	75612	Aug 1964	Traded to EMD in August 1964.
UP 605B		Jan 1949	75613	Sep 1965	Traded to EMD in September 1965.
UP 606B		Jan 1949	75614	Aug 1964	Traded to EMD in August 1964.
UP 607B		Jan 1949	75615	Aug 1964	Traded to EMD in August 1964.

General Notes:

a.	UP 600B, 602B built as UP 998B, 999B; renumbered to UP 600B, 602B in March 1948.
b.	Equipped with steam generators for passenger service; retired in place upon reassignment to freight to freight service in 1958.
c.	Built as passenger locomotives, reassigned to freight service in 1958 upon deliveries of EMD E9s; re-ballasted from 310,700 pounds operating weight (207,000 pounds weight on drivers) to 349,900 pounds operating weight (234,100 pounds weight on drivers); gear ratio changed from 60:23 to 74:18.
d.	UP 600B-602B had Alco order number S-3041.
e.	UP 604B-607B had Alco order number S-3049.

GE UM20B — 2 A-units
2000 horsepower; B-B trucks; 274,800 pounds operating weight

Road Number	First Number	Builder Date	Builder Number	Date To UP	Date Retired	Notes
UP 620	Erie 750A	Sep 1954	32218	21 Oct 1959	Oct 1963	Traded to GE in October 1963.
UP 621	Erie 750D	Sep 1954	32220	21 Oct 1959	Oct 1963	Traded to GE in October 1963.

General Notes:

a.	Built as Erie 750A, 750D; owned by GE; leased by GE to Erie Railroad in 1954; operated in Erie colors with Erie numbers; returned to GE in 1959; rebuilt to UM20Bs and sold to UP.
b.	Sold to UP on 21 October 1959, delivered in April 1960; operated on UP for 3-1/2 years.
c.	Built as GE experimental cab units to compete with EMD's F9 series locomotives. Erie 750A (along with Erie 750B) was originally equipped with a 12-cylinder, 2000 horsepower Cooper-Bessemer FVA12LT engine; Erie 750D (along with Erie 750C) was originally equipped with an 8-cylinder, 1200 horsepower Cooper-Bessemer FVA8LT engine. Both A-units, along with the two B-units, were rebuilt in October 1959 with 12 cylinder, 2000 horsepower Cooper-Bessemer FVB12LT engines.

GE UM20B — 2 B-units
2000 horsepower; B-B trucks; 264,800 pounds operating weight

Road Number	First Number	Builder Date	Builder Number	Date To UP	Date Retired	Notes
UP 620B	Erie 750B	Sep 1954	32219	21 Oct 1959	Oct 1963	Traded to GE in October 1963.
UP 621B	Erie 750C	Sep 1954	32221	21 Oct 1959	Oct 1963	Traded to GE in October 1963.

General Notes:

a.	Built as Erie 750B, 750C; owned by GE; leased by GE to Erie Railroad in 1954; operated in Erie colors with Erie numbers; returned to GE in 1959; rebuilt to UM20Bs and sold to UP.
b.	Sold to UP on 21 October 1959, delivered in April 1960; operated on UP for 3-1/2 years.
c.	Built as GE experimental cab units to compete with EMD's F9 series locomotives. Erie 750B (along with Erie 750A) was originally equipped with a 12-cylinder, 2000 horsepower Cooper-Bessemer FVA12LT engine; Erie 750C (along with Erie 750D) was originally equipped with an 8-cylinder, 1200 horsepower Cooper-Bessemer FVA8LT engine. Both B-units, along with the two A-units, were rebuilt in October 1959 with 12 cylinder, 2000 horsepower Cooper-Bessemer FVB12LT engines.

GE U25B — 16 units
2500 horsepower; B-B trucks; 250,000 pounds operating weight

Road Number	First Number	Builder Date	Builder Number	In-service Date	Date Retired	Temporary MK Number	Notes
UP 625		Aug 1961	34224	15 Aug 1961	Sep 1972	MK11	1
UP 626		Aug 1961	34225	15 Aug 1961	Sep 1972	MK13	2
UP 627		Aug 1961	34226	11 Aug 1961	Aug 1970		3
UP 628		Aug 1961	34228	30 May 1962	Sep 1972	MK4	4
UP 629		May 1962	34238	30 May 1962	Sep 1972	MK14	5
UP 630		May 1962	34233	30 May 1962	Sep 1972	MK8	6
UP 631		May 1962	34230	6 Jun 1962	Sep 1972	MK9	7
UP 632		May 1962	34235	6 May 1962	Sep 1972		8
UP 633	GE 2501	Jul 1962	34239	17 Jul 1962	Sep 1972	MK1	9
UP 634	GE 2503	Jul 1962	34234	15 Jul 1962	Sep 1972	MK3	10
UP 635	GE 2502	Jul 1962	34236	27 Jul 1962	Sep 1972	MK5	11
UP 636	GE 2504	Jul 1962	34237	27 Jul 1962	Sep 1972	MK6	12
UP 637		Aug 1962	34535	14 Sep 1962	Sep 1972	MK12	13
UP 638		Aug 1962	34536	20 Sep 1962	Sep 1972	MK2	14
UP 639		Aug 1962	34537	20 Sep 1962	Sep 1972	MK7	15
UP 640		Sep 1962	34538	26 Sep 1962	Sep 1972	MK10	16

General Notes:

a.	UP 633-636 were built as GE demonstrators 2501, 2503, 2502, 2504, with original builder's date of February 1962; sold to UP in mid July 1962. Upon delivery to UP in July 1962 the build dates were changed to reflect the new warranty date of July 1962.
b.	UP 625-632 and 634-636 (11 units) were equipped with a high short hoods.
c.	UP 633 and 637-640 (five units) were equipped with low short hoods. UP 633 (as GE 2501) was the first U25B to be built with a low short hood.
d.	UP 632 was rebuilt in April 1969 by UP at Omaha, Neb., with a test installation of GE's new 12 cylinder engine and new alternator. The installation was completed to gather data for UP's new U50Cs that were then under development. The 12 cylinder engine and alternator were removed and the unit removed from service, without having had its original 16 cylinder reinstalled. UP 632 was sold to the Rock Island in 1972 and was stored at Silvis, Ill., until early 1978, when it was stripped to its frame and rebuilt to CRI&P road slug 283, completed in April 1978.
e.	UP 633, 638, 639, 640 were reconditioned by UP in 1968 and assigned to the hump yard at Pocatello, Idaho, replacing retired Baldwin AS-616s.
f.	UP 638 was repainted in July 1973 (while out of service at Council Bluffs, Iowa) by UP, including the then-current "We Can Handle It" slogan, and sent to Milford, Utah, to commemorate that city's 100 year anniversary. The unit was also used to represent Union Pacific at centennial ceremonies several other Utah and Idaho cities that year; returned to storage at Council Bluffs.
g.	Remaining 14 units sold to Morrison Knudsen on 14 August 1974 and moved to Boise, Idaho, for storage. Each unit was painted in a full black paint scheme, with a temporary MK number applied in white on the hood sides for identification.
h.	UP 628, 633, 638, 639, and 640 were rebuilt by Morrison Knudsen to TE53-1-4Es and sold to Oregon, California & Eastern Railroad 7604, 7602, 7605, 7601, and 7603 respectively. The rebuilding included reconditioned EMD 16-567B engines (rated at 1600 horsepower) and generators from retired former B&O F7s, installed in the original GE U25B car bodies. (See Pacific News, August 1976, p.17)
h.	UP 629 and 636 were rebuilt by Morrison Knudsen to S3-3B road slugs and sold to Oregon, California & Eastern 7606 and 7607. The rebuilding included removal of all components from the former U25B frame and completely new low profile car bodies.
i.	UP 630, 631, 635 were rebuilt by Morrison Knudsen to MK TE53-4Es 5303, 5302, 5301 respectively. The rebuilding included completely new car bodies and reconditioned EMD 16-567B engines and generators from retired former B&O F7s.
j.	UP 634 was rebuilt by Morrison Knudsen to SP's first road slug, road number 1600, completed on 1 May 1980.
i.	UP 637 was rebuilt by Morrison Knudsen to a TE53-1-4E and sold to Weyerhauser 310. The rebuild effort included reconditioned EMD 16-567B engines and generators from a retired former B&O F7, installed in the original GE U25B car body. Weyerhauser 310 was sold (transferred) to Weyerhauser-owned Oregon, California & Eastern 8012 in early 1980 upon the shut down of Weyerhauser's Headquarters Division. (See Pacific News, February 1976).

Notes:

1.	UP 625 was scrapped by Morrison Knudsen at Boise during October 1981.
2.	UP 626 was scrapped by Morrison Knudsen at Boise during October 1981.
3.	UP 627 was wrecked on 23 November 1968 at Aikens, Kansas; traded to GE in September 1971.
4.	UP 628 was rebuilt (including chopped short hood) to Oregon, California & Eastern 7605 (MK model TE53-1-4E), completed on 20 August 1976; to OmniTRAX; to Econo-Rail (ECRX) 7604; used by Union Carbide, Seadrift, Tex., late 1998.
5.	UP 629 was rebuilt to Oregon, California & Eastern road slug 7606 (MK model S3-3B), completed on 26 June 1976; retired in 1991; sold in 1992 to Econo-Rail (ECRX) 7606; to Longhorn Railway (LHRR) 7606 during 1997; in service on Port of Beaumont (Texas); scrapped.
6.	UP 630 was rebuilt to MK 5303 (MK model TE53-4E), completed on 26 September 1975; used by Morrison Knudsen on Black Mesa & Lake Powell Railroad, Page, Ariz., until May 1977; used in Morrison Knudsen's national lease fleet until scrapped at Boise during December 1984.
7.	UP 631 was rebuilt to MK 5302 (MK model TE53-4E), completed on 5 September 1975; used by Morrison Knudsen on Black Mesa & Lake Powell Railroad, Page, Ariz., until May 1977; used in Morrison Knudsen's national lease fleet until scrapped at Boise during January 1985.
8.	UP 632 was sold without engine to CRI&P for parts to repair wrecked (cab damage) U25B 260 in October 1972; rebuilt by CRI&P to road slug 283 in April 1978; stored at former CRI&P Silvis shops until sold to Chrome Locomotive in March 1981.
9.	UP 633 was rebuilt to Oregon, California & Eastern 7602 (MK model TE53-1-4E), completed on 30 July 1976; retired in 1991; sold in 1992 to Econo-Rail (ECRX) 7602, out of service by October 2001.
10.	UP 634 was rebuilt to SP road slug 1600 (MK model S3-3BDE TEBU), completed on 1 May 1980.
11.	UP 635 was rebuilt to MK 5301 (MK model TE53-4E), completed on 18 August 1975; used by Morrison Knudsen on Black Mesa & Lake Powell Railroad, Page, Ariz.; sold to Black Mesa & Lake Powell, 8 January 1977.
12.	UP 636 was rebuilt to Oregon, California & Eastern road slug 7607 (MK model S3-3B), completed on 1 July 1976; retired in 1991; sold in 1992 to Econo-Rail (ECRX) 7607.
13.	UP 637 was rebuilt to Weyerhauser 310 (MK model TE53-1-4E), completed on 24 December 1975; transferred to Oregon, California & Eastern in 1979; renumbered to OC&E 8012 in early 1980; retired in 1991; sold in 1992 to Econo-Rail in Texas.
14.	UP 638 was rebuilt to Oregon, California & Eastern 7605 (MK model TE53-1-4E), completed on 24 September 1976; retired in 1991; sold in 1992 to Econo-Rail (ECRX) 7605.
15.	UP 639 was rebuilt to Oregon, California & Eastern 7601 (MK model TE53-1-4E), completed on 26 June 1976; retired in 1991; sold in 1992 to Econo-Rail (ECRX) 7601; to Longhorn Railway (LHRR) 7601 during 1997; in service on Port of Beaumont (Texas).
16.	UP 640 was rebuilt to Oregon, California & Eastern 7603 (MK model TE53-1-4E), completed on 1 July 1976; retired in 1991; sold in 1992 to Econo-Rail (ECRX) 7603; to Longhorn Railway (LHRR) 7603 during 1997; in service on Port of Beaumont (Texas).

EMD GP40 — 5 units
3000 horsepower; B-B-trucks; 277,000 pounds operating weight

Road Number	Previous Number	Builder Date	Builder Number	Date To 633 Series	685 Series Number	Date To 685 Series	Date Retired	Notes
UP 636	C&NW 5504	Dec 1965	30951	25 Aug 1995	UP 689	23 Dec 1997		1
UP 637	C&NW 5506	Dec 1965	30953	9 May 1996	UP 691	23 Jul 1997		2
UP 638	C&NW 5507	Dec 1965	30954	3 Jul 1996			26 Dec 2001
UP 648	C&NW 5524	Dec 1965	30972	7 May 1996			25 May 2001	3
UP 652	C&NW 5532	Nov 1965	30981	26 Feb 1996			12 Oct 2000	4

General Notes:

a.	Original total of 38 C&NW units, numbered C&NW 5501-5537; 33 units went to UP at merger; C&NW retired five units (C&NW 5514, 5519, 5523, 5530 and 5536) prior to the merger. (These five retired units were sold by C&NW to Helm Financial during 1989; reconditioned and leased to UP as UP 886, 882, 871, 883, and 870; all except UP 882 were rebuilt to GP38-2s and are now in service as UP 2555, 2542, 2552, and 2541).
b.	Built as part of the 40-unit group for New York Central; to Penn Central in 1968; to Conrail in 1976; returned to lessor/owner in 1980 upon expiration of 15 year lease; two units (PC 3024 and 3043) were wrecked and retired by PC; remaining 38 units were purchased by Precision National Corp., in July 1980; C&NW leased the 38 units from PNC in late 1980, and purchased them during 1981; all 38 units, numbered C&NW 5500-5537, were rebuilt in June through December 1981 at C&NW's Oelwein, Iowa, shops, including new electrical cabinets and modifications to the throttle and dynamic braking controls.
c.	Equipped with Automatic Train Stop (ATS) for operation along former C&NW Chicago commuter lines.
d.	Equipped with Automatic Train Control (ATC) for operation along former C&NW lines.
e.	Assigned UP 633-665 in August 1995, five units (UP 636, 637, 638, 648, 652) renumbered; assigned UP 685-717 in December 1997, three units renumbered (UP 689, 691, 698) renumbered; assigned UP 9967-9985 in December 1999.
f.	These five units were renumbered to this UP 633-665 group in August 1995 through July 1996 (UP 636, ex C&NW 5504, was the first, completed on 25 August 1995, and UP 638, ex C&NW 5507, was the last, completed on 3 July 1996).
g.	UP 636, 638, and 648 were built on EMD order number 7831; UP 652 was built on EMD order number 7851.
h.	Individual unit histories:

Road Number	First Number	Second Number	Third Number	Fourth Number
636	NYC 3014	PC 3014	CR 3014	C&NW 5504
637	NYC 3016	PC 3016	CR 3016	C&NW 5506
638	NYC 3017	PC 3017	CR 3017	C&NW 5507
648	NYC 3035	PC 3035	CR 3035	C&NW 5524
652	NYC 3044	PC 3044	CR 3044	C&NW 5532

Notes:

1.	UP 636 was renumbered to UP 689 on 23 December 1997.
2.	UP 637 was renumbered to UP 691 on 23 July 1997.
3.	UP 648 was retired on 25 May 2001, but still on property; renumbered to WP 648 on 20 July 2001 to clear the UP 648 number for use by renumbered GP38-2 2148.
4.	UP 652 was retired on 12 October 2000, but still on property; renumbered to WP 652 on 19 December 2000 to clear the UP 652 number for use by renumbered GP38-2 2152.

F-M Erie A — 8 units
2000 horsepower; A1A-A1A trucks; operating weight (see general note, below)

Road Number	First Number	Second Number	Third Number	Builder Date	F-M Builder Number	GE Builder Number	Date Retired
UP 650	UP 50-M-1A	UP 981A	UP 700	Dec 1945	L1060	27789	Sep 1961
UP 651	UP 50-M-2A	UP 982A	UP 701	Dec 1945	L1061	27790	May 1961
UP 652	UP 984A	UP 702		Nov 1947	L1117	29391	Mar 1961
UP 653	UP 985A	UP 703		Nov 1947	L1118	29392	Jul 1961
UP 654	UP 704			Mar 1948	L1136	29405	Jul 1960
UP 655	UP 705			Mar 1948	L1137	29406	Jul 1961
UP 656	UP 706			Apr 1948	L1138	29407	Mar 1961
UP 657	UP 707			Apr 1948	L1139	29408	Aug 1961

General Notes:

a.	Designed by Fairbanks-Morse and constructed by General Electric at their factory in Erie, Pa., hence the name "Erie-builts". The locomotives used F-M diesel engines and GE electrical equipment.
b.	Generally assigned to passenger service on the South Central District, between Salt Lake City, Utah, and Los Angeles, Calif.; reassigned to freight service system-wide with the arrival of additional EMD E8s in 1953.
c.	Reassigned from passenger service (700-707 series) to freight service (650-657 series) in February 1953; reballasted from 341,500 pounds operating weight (238,400 pounds weight on drivers) to 357,300 pounds operating weight (248,900 pounds weight on drivers); gear ratio changed from 63:24 to 68:19.
d.	Previously published in error as being Fairbanks-Morse model ALT-100-3. Additional information shows that this was merely the form number of the original advertising literature.
e.	The 1961 retirement dates are taken from the original UP roster in the December 1962 issue of the original Extra 2200 South.
f.	UP 650, 651 had F-M order number LD-6.
g.	UP 652, 653 had F-M order number LD-28.
h.	UP 654-657 had F-M order number LD-34.

F-M Erie B — 5 units
2000 horsepower; A1A-A1A trucks; operating weight (see general note, below)

Road Number	First Number	Second Number	Third Number	Builder Date	F-M Builder Number	GE Builder Number	Date Retired
UP 650B	UP 50-M-3B	UP 983B	UP 700B	Dec 1945	L1062	27791	Jul 1961
UP 652B	UP 986B	UP 702B		Nov 1947	L1127	29431	Mar 1961
UP 653B	UP 987B	UP 703B		Nov 1947	L1128	29392	Aug 1961
UP 654B	UP 704B			Mar 1948	L1142	29436	May 1961
UP 656B	UP 706B			Apr 1948	L1143	29437	Oct 1960

General Notes:

a.	Designed by Fairbanks-Morse and constructed by General Electric at their factory in Erie, Pa., hence the name "Erie-builts". The locomotives used F-M diesel engines and GE electrical equipment.
b.	Generally assigned to passenger service on the South Central District, between Salt Lake City, Utah, and Los Angeles, Calif.; reassigned to freight service system-wide with the arrival of additional EMD E8s in 1953.
c.	Reassigned from passenger service (700B-706B series) to freight service (650B-656B series) in February 1953; reballasted from 338,900 pounds operating weight (236,700 pounds weight on drivers) to 353,200 pounds operating weight (246,900 pounds weight on drivers); gear ratio changed from 63:24 to 68:19.
d.	Previously published in error as being Fairbanks-Morse model ALT-100-3. Additional information shows that this was merely the form number of the original advertising literature.
e.	The 1961 retirement dates are taken from the original UP roster in the December 1962 issue of the original Extra 2200 South.
g.	UP 650B had F-M order number LD-6.
h.	UP 652B, 653B had F-M order number LD-28.
i.	UP 654B, 656B had F-M order number LD-34.

GE C36-7 — 34 units
3600 horsepower; C-C trucks; 391,000 pounds operating weight

Road Number	Previous Number	Builder Date	Builder Number	Date To 2600 Series	Date To 600 Series	7942 Series Number	Date To 7942 Series	Date Retired
UP 601	UP 9001	Sep 1985	45041		31 Oct 1996			19 Apr 2001
UP 602	UP 9002	Sep 1985	45042		25 Sep 1999			18 Jun 2001
UP 603	UP 2603	Sep 1985	45043	15 Oct 1996	23 Apr 1997			31 Jul 2001
UP 606	UP 2606	Sep 1985	45046	18 Oct 1995	28 Oct 1996	UP 7948	27 Aug 2000
UP 607	UP 9007	Sep 1985	45047		18 Feb 1997			28 Jun 2001
UP 608	UP 2608	Sep 1985	45048	15 Oct 1996	28 Oct 1996			29 Mar 2001
UP 610	UP 2610	Sep 1985	45050	6 Jan 1996	24 Oct 1997			29 Mar 2001
UP 613	UP 9013	Sep 1985	45053		10 Oct 1998			8 Mar 2001
UP 616	UP 9016	Oct 1985	45056		16 Jan 1998			29 Mar 2001
UP 617	UP 9017	Oct 1985	45057		20 Jun 1997			31 Jul 2001
UP 618	UP 2618	Oct 1985	45058	27 Feb 1996	4 Jun 1997			28 Jun 2001
UP 619	UP 9019	Oct 1985	45059		25 Oct 1996	UP 7961	18 Apr 2000
UP 622	UP 2622	Oct 1985	45062	30 Sep 1996	25 Oct 1996	UP 7964	17 Jul 2000
UP 623	UP 9023	Oct 1985	45063		8 Feb 1999			8 Mar 2001
UP 624	UP 9024	Oct 1985	45064		9 Jul 1997			29 Mar 2001
UP 625	UP 9025	Oct 1985	45065		25 Nov 1997	UP 7967	24 Oct 2000
UP 627	UP 9027	Oct 1985	45067		2 Jun 1997			8 Mar 2001
UP 628	UP 9028	Oct 1985	45068		19 Jan 1998			12 Jul 2001
UP 629	UP 9029	Oct 1985	45069		28 Oct 1999	UP 7971	7 Sep 2000
UP 630	UP 2630	Oct 1985	45070	5 Jun 1996	6 Aug 1998	UP 7972	27 Sep 2000
UP 633	UP 9033	Oct 1985	45073		29 Jun 1998			8 Mar 2001
UP 634	UP 9034	Oct 1985	45074		12 Dec 1997	UP 7976	31 Jul 2000
UP 635	UP 9035	Oct 1985	45075		7 May 1997			23 May 2001
UP 639	UP 9039	Oct 1985	45079		20 Nov 1997			28 Jun 2001
UP 643	UP 2643	Oct 1985	45083	6 May 1996	17 Mar 1998			8 Mar 2001
UP 644	UP 9044	Oct 1985	45084		27 Mar 1997			8 Mar 2001
UP 645	UP 2645	Oct 1985	45085	11 Oct 1996	28 Oct 1996			27 Apr 2001
UP 646	UP 9046	Oct 1985	45086		4 Apr 2000			12 Jul 2001
UP 647	UP 9047	Oct 1985	45087		15 Jul 1999			8 Mar 2001
UP 649	UP 9049	Oct 1985	45089		4 Sep 1999	UP 7990	7 Sep 2000
UP 650	UP 9050	Oct 1985	45090		15 Feb 1997	UP 7991	1 Oct 2000
UP 651	UP 9051	Oct 1985	45091		14 Dec 1998			8 Mar 2001
UP 654	UP 2654	Oct 1985	45094	4 Dec 1995	14 Dec 1998			8 Mar 2001
UP 656	UP 2656	Nov 1985	45096	4 Dec 1995	9 Dec 1999	UP 7996	8 Jun 2001
UP 657	UP 2657	Nov 1985	45097	20 Jan 1996	7 Mar 1997	UP 7997	8 Aug 2000

General Notes:

a.	Total of 60 units; built after UP-MP merger as MP 9000-9059, the second group of new units delivered in UP yellow and gray paint after the merger, with Missouri Pacific lettering (MP's SD50s were the first group, delivered in 1984).
b.	Of the 60 units to UP, 34 units were renumbered to this 600-659 group, 12 units from the UP 2600-2659 group, and 22 units from the 9000-9059 group.
c.	Of the 60 units to UP, 27 units were renumbered to the UP 2600-2659 group in September 1995 through October 1996 (UP 2653, ex UP 9053, was the first, completed on 18 September 1995, and UP 2603 and 2608, ex UP 9003 and 9008, were the last, both completed on 15 October 1996).
d.	Of the 27 units renumbered into the 2600-2659 group, a total of 12 units were renumbered into this later 600-659 group in October 1996 through December 1999 (UP 622, ex UP 2622, was the first, completed on 25 October 1996, and UP 656, ex UP 2656, was the last, completed on 9 December 1999); two units were retired as UP 2600s: UP 2655 was retired in July 1999, and UP 2638 was retired in September 1999.
e.	A total of 22 units were renumbered direct from the 9000-9059 group to the 600-659 group in October 1996 through October 1999 (UP 619, ex UP 9019, was the first, completed on 25 October 1996, and UP 629, ex UP 9029, was the last, completed on 28 October 1999).
f.	Of the original total of 60 units, two units (UP 2638 and 2655) were retired prior to the December 1999 renumber plan, the other 58 units are assigned UP 7942-7999; 34 units from the 600-659 group, 13 units from the 2600-2659 group, and 11 units from the 9000-9059 group.
g.	Assigned UP 9000-9059 in December 1985, all units renumbered; assigned UP 2600-2659 in September 1995, 12 units renumbered; assigned UP 600-659 in October 1996; assigned UP 7942-7999 in December 1999.
h.	Individual unit histories:

Road Number	First Number	Second Number	Third Number
UP 601	MP 9001	UP 9001
UP 602	MP 9002	UP 9002
UP 603	MP 9003	UP 9003	UP 2603
UP 606	MP 9006	UP 9006	UP 2606
UP 607	MP 9007	UP 9007
UP 609	MP 9009	UP 9009	UP 2609
UP 608	MP 9008	UP 9008	UP 2608
UP 610	MP 9010	UP 9010	UP 2610
UP 613	MP 9013	UP 9013
UP 616	MP 9016	UP 9016
UP 617	MP 9017	UP 9017
UP 618	MP 9018	UP 9018	UP 2618
UP 619	MP 9019	UP 9019
UP 622	MP 9022	UP 9022	UP 2622
UP 623	MP 9023	UP 9023
UP 624	MP 9024	UP 9024
UP 625	MP 9025	UP 9025
UP 627	MP 9027	UP 9027
UP 628	MP 9028	UP 9028
UP 629	MP 9029	UP 9029
UP 630	MP 9030	UP 9030	UP 2630
UP 633	MP 9033	UP 9033
UP 634	MP 9034	UP 9034
UP 635	MP 9035	UP 9035
UP 639	MP 9039	UP 9039
UP 643	MP 9043	UP 9043	UP 2643
UP 644	MP 9044	UP 9044
UP 645	MP 9045	UP 9045	UP 2645
UP 646	MP 9046	UP 9046
UP 647	MP 9047	UP 9047
UP 649	MP 9049	UP 9049
UP 650	MP 9050	UP 9050
UP 651	MP 9051	UP 9051
UP 654	MP 9054	UP 9054	UP 2654
UP 656	MP 9056	UP 9056	UP 2656
UP 657	MP 9057	UP 9057	UP 2657

Alco RS-27 — 4 units
2400 horsepower; B-B trucks; 258,000 pounds operating weight

Road Number	First Number	Builder Date	Builder Number	Date Retired	Notes
UP 675	Alco 640-2	Dec 1959	83556	Mar 1971	1
UP 676	Alco 640-3	Dec 1959	83557	Mar 1971	2
UP 677	Alco 640-4	Jan 1960	83558	Aug 1970	3
UP 678	Alco 640-5	Jan 1960	83559	Apr 1971	4

General Notes:

a.	UP 675-678 were built as Alco Products demonstrators 640-2 to -5; sold to UP in September 1961. (Alco 640-1 was rebuilt to a Century 424 and sold to Pennsylvania Railroad as their 2415)
b.	Alco RS-27s had Alco specification number DL-640.
c.	UP 675-678 had Alco order number S-3323.

Notes:

1.	UP 675 was sold to Strobell Co., in March 1971; sold to Montreal Locomotive Works in May 1971; used in Canadian lease service as MLW 675; sold to Devco Railway 214 in March 1975.
2.	UP 676 was sold to Strobell Co., in March 1971; sold to Montreal Locomotive Works in May 1971; used in Canadian lease service as MLW 676; sold to Devco Railway 215 in March 1975
3.	UP 677 was wrecked on 23 November 1968 at Aikens, Kansas; scrapped by UP at Omaha, Neb.
4.	UP 678 was traded to EMD in April 1971; sold to Erie Mining Co., for parts and later scrapped.

EMD GP40 — 51 units
3000 horsepower; B-B trucks; 266,000 pounds operating weight

Road Number	First Number	Builder Date	Builder Number	Date To UP Number Only	Date To UP Number and Paint	Date To MP Number	Date Retired	Notes
UP 600	CRI&P 340	Sep 1966	32232		19 Apr 1980	7 Jun 1985	5 Jun 1991	1
(UP 601)	CRI&P 341	Sep 1966	32233				23 Mar 1985	2
(UP 602)	CRI&P 342	Sep 1966	32234				23 Mar 1985	3
UP 603	CRI&P 343	Sep 1966	32235	7 Apr 1980	11 May 1980	6 Sep 1985	6 Oct 1988	4
UP 604	CRI&P 344	Sep 1966	32236		8 Apr 1980	15 Apr 1985	10 Aug 1987	5
UP 605	CRI&P 345	Sep 1966	32237		bef Jun 1982	18 Apr 1985	23 Oct 1991	6
UP 606	CRI&P 346	Sep 1966	32238		6 May 1980	21 Nov 1984	10 Aug 1987	7
(UP 607)	CRI&P 347	Sep 1966	32239				11 May 1985	8
UP 608	CRI&P 348	Sep 1966	32240		11 Apr 1980	6 Mar 1985	9 Oct 1992	9
(UP 609)	CRI&P 349	Sep 1966	32241				11 May 1985	10
UP 610	CRI&P 350	Sep 1966	32242		6 Apr 1980		10 Aug 1987	11
UP 611	CRI&P 351	Sep 1966	32243		2 Apr 1980	15 Aug 1985	5 Jun 1991	12
MP 612	CRI&P 352	Sep 1966	32244			25 Jul 1984	10 Aug 1987	13
(UP 613)	CRI&P 353	Sep 1966	32245				23 Mar 1985	14
UP 614	CRI&P 354	Sep 1966	32246	3 Apr 1980	1 May 1980		10 Aug 1987	15
UP 615	CRI&P 355	Sep 1966	32247	13 Apr 1980	8 May 1980	25 Apr 1985	10 Aug 1987	16
UP 616	CRI&P 356	Oct 1966	32248	7 Apr 1980	28 May 1980	19 Apr 1985	6 Feb 1990	17
(UP 617)	CRI&P 357	Oct 1966	32249				11 May 1985	18
(UP 618)	CRI&P 358	Oct 1966	32250				11 May 1985	19
(UP 619)	CRI&P 359	Oct 1966	32251				23 Mar 1985	20
(UP 620)	CRI&P 362	Dec 1966	32588				23 Mar 1985	21
(UP 621)	CRI&P 363	Dec 1966	32589				11 May 1985	22
UP 622	CRI&P 364	Dec 1966	32590	7 Apr 1980	5 May 1980	11 Mar 1985	9 Oct 1992	23
(UP 623)	CRI&P 365	Dec 1966	32591				23 Mar 1985	24
(UP 624)	CRI&P 366	Dec 1966	32592				11 May 1985	25
(UP 625)	CRI&P 367	Dec 1966	32593				11 May 1985	26
UP 626	CRI&P 368	Dec 1966	32594		8 Apr 1980	10 Dec 1984	10 Aug 1987	27
(UP 627)	CRI&P 369	Dec 1966	32595				23 Mar 1985	28
UP 628	CRI&P 371	Dec 1966	32597		12 Apr 1980	16 Nov 1984	10 Aug 1987	29
UP 629	CRI&P 372	Dec 1966	32598	1 Apr 1980	28 Apr 1980	9 Oct 1984	10 Aug 1987	30
(UP 630)	CRI&P 373	Dec 1966	32599				11 May 1985	31
UP 631	CRI&P 4700	Mar 1970	36386		Jun 1983	9 Nov 1984	8 Oct 1992	32
UP 632	CRI&P 4701	Mar 1970	36387		2 Apr 1980	26 Jul 1985	29 May 1992	33
UP 633	CRI&P 4702	Mar 1970	36388		Jun 1983	14 Jun 1985	23 Oct 1991	34
(UP 634)	CRI&P 4703	Mar 1970	36389				11 May 1985	35
UP 635	CRI&P 4704	Mar 1970	36390	3 Apr 1980	2 May 1980	2 May 1985	23 Oct 1991	36
UP 636	CRI&P 4705	Mar 1970	36391		bef Jun 1982		23 Oct 1991	37
UP 637	CRI&P 4706	Mar 1970	36392		14 Apr 1980	10 May 1985	26 Oct 1988	38
(UP 638)	CRI&P 4707	Mar 1970	36393				23 Mar 1985	39
UP 639	CRI&P 4708	Mar 1970	36394	5 Apr 1980	2 May 1980	23 Sep 1985	23 Oct 1991	40
UP 640	CRI&P 4709	Mar 1970	36395		23 Apr 1980		23 Oct 1991	41
(UP 641)	CRI&P 4710	Apr 1970	36396				11 May 1985	42
MP 642	CRI&P 4711	Apr 1970	36397			5 Jun 1985	23 Jun 1991	43
UP 643	CRI&P 4712	Apr 1970	36398	1 Apr 1980	29 Apr 1980		21 Aug 1991	44
(UP 644)	CRI&P 4713	Apr 1970	36399				11 May 1985	45
UP 645	CRI&P 4714	Apr 1970	36400		5 Apr 1980	20 Feb 1985	23 Oct 1991	46
UP 646	CRI&P 4715	Apr 1970	36401		10 Apr 1980		10 Aug 1987	47
UP 647	CRI&P 4716	Apr 1970	36402	5 Apr 1980	12 May 1980		23 Oct 1991	48
UP 648	CRI&P 4717	Apr 1970	36403		1 Apr 1980		11 May 1985	49
(UP 649)	CRI&P 4718	Apr 1970	36404				11 May 1985	50
(UP 650)	CRI&P 4719	Apr 1970	36405				23 Mar 1985	51

General Notes:

a.	Built as CRI&P 340-359, 362-369, 371-373, 4700-4719; owned by UP, leased to CRI&P; the remaining 51 units of the original 60 units, were returned to UP at time of CRI&P shut-down on 31 March 1981; nine units (CRI&P 370, 374-381) had been formally purchased by CRI&P and were not returned to UP.
b.	Twenty-eight of the 51 units returned to UP were repainted to UP, then 20 of those 28 were later relettered to MP; one unit was relettered back to UP; two additional former CRI&P units were repainted/relettered/renumbered directly from CRI&P to MP; making a total of 30 (of 51) units repainted yellow and renumbered from CRI&P to either UP or MP.
c.	All former CRI&P GP40s, including the 24 units in UP paint up to that time, were stored by UP beginning in June 1980, and remained in storage at Council Bluffs, Iowa, North Platte, Neb., Salt Lake City, Utah, and Yermo, Calif., through late 1983; few, if any, operated on UP prior to being stored; beginning in late 1983, the operable units were moved to Texas for service on the Missouri Pacific; by May 1984, 44 of the 51 former CRI&P GP40s had been moved to Texas, although only 20 actually operated on MP, the rest being stored; the remaining seven units not moved to Texas remained stored at Council Bluffs until their retirement.
d.	UP 625 and 626 had 61:15 gear ratio; UP 639 had 59:18 gear ratio; UP 645 and 646 had 61:16 gear ratio.
e.	Not equipped with dynamic braking.
f.	CRI&P 340-359 were built on EMD order number 7926.
g.	CRI&P 362-381 were built on EMD order number 7942
h.	CRI&P 4700-4719 were built on EMD order number 7263.

Notes:

1.	MP 600 was leased to NdeM in October 1989 to June 1991; stored unserviceable at Fort Worth, Tex.; sold to National Railway Equipment, 9 October 1991; rebuilt by (??) to GP38MAC, to Nebraska Central 4204 in (??).
2.	CRI&P 341 was sold for scrap to Gray Supply Co., North Little Rock, Ark., in March 1985.
3.	CRI&P 342 was sold for scrap to Gray Supply Co., North Little Rock, Ark., in March 1985.
4.	MP 603 was sold to Wilson Railway Co., Des Moines, Iowa in November 1988; to Intermountain Transportation Services 301 in 1989, leased to UP without lettering, lettering applied by December 1990 (possibly lettered for Intermountain Western Railroad (IWRR) 301); sold to Helm Financial as Helm Leasing (HLCX) 301 before November 1993 (date of photo); reconditioned by AMF, Montreal, completed as Helm Leasing (HLCX) 4003 on 3 February 1995, seen on February 11, 1995; to Transportacion Ferroviaria Mexicana (TFM) 1157, after April 1997. (dates for ITS 301 and HLCX 301/4003 from Randy Keller, via email, February 5, 2006)
5.	MP 604 was sold to Morrison Knudsen, 28 October 1987, rebuilt to Metro North Commuter Railroad (MNCR) GP40FH-2 4186, completed on 27 August 1988.
6.	MP 605 was leased to NdeM in October 1989 to January 1991; stored unserviceable at Fort Worth, Tex.; sold to Helm Financial, 17 March 1993. (renumber date to UP changed from "Jun 1983" to "bef Jun 1982" based on sighting of UP 605 on June 25, 1982, in storage at Yermo by Randy Keller , per email on February 1, 2006)
7.	MP 606 was first renumbered to UP 606 on 3 April 1980 (renumbered only, not repainted); sold to Morrison Knudsen, 28 October 1987, rebuilt to New Jersey Transit (NJT) GP40FH-2 4140, completed on 31 May 1989.
8.	CRI&P 347 was sold to Precision National Corp., Mount Vernon, Ill., in July 1985; scrapped by Gray Supply Co., North Little Rock, Ark.
9.	MP 608 was leased to NdeM in September 1989 to February 1991; stored unserviceable at Fort Worth, Tex.; sold to National Railway Equipment, Dixmoor, Ill., 17 March 1993; to Dakota Minnesota & Eastern 4003 in September 1994.
10.	CRI&P 349 was sold to Precision National Corp., Mount Vernon, Ill., in July 1985; scrapped, by Gray Supply Co., North Little Rock, Ark.
11.	UP 610 was sold to Morrison Knudsen, 28 October 1987, rebuilt to MNCR GP40FH-2 4184, completed on 18 May 1988.
12.	MP 611 was leased to NdeM in September 1989 to June 1991; stored unserviceable at Fort Worth, Tex.; sold to National Railway Equipment, 9 October 1991; rebuilt by NRE to Ferrocarril del Pacifico SA (Fepasa, Chile) SD39-2M 2354 in early September 1997. One of 14 locomotives being completed, including ex MKT GP40s 172 and 179, and wrecked UP GP38-2 2026. (Extra 2200 South, issue 112, March 1997, page 14; Extra 2200 South, Issue 114, February 1998, page 18) (Locomotive Notes II, Number 200, January-February 1998, page 29; Number 210, March-April 1998, page 29, reported by Alan Miller)
13.	MP 612 was sold to Morrison Knudsen, 28 October 1987, rebuilt to MNCR GP40FH-2 4185, completed on 3 August 1988.
14.	CRI&P 353 was sold for scrap to Gray Supply Co., North Little Rock, Ark., in March 1985.
15.	UP 614 was sold to Morrison Knudsen, 28 October 1987, rebuilt to NJT GP40FH-2 4144, completed on 9 August 1989.
16.	MP 615 was sold to Morrison Knudsen, 28 October 1987, rebuilt to MNCR GP40FH-2 4187, completed on 1 September 1988.
17.	MP 616 was leased to NdeM in October 1989 to February 1990; wrecked on NdeM and scrapped in Mexico.
18.	CRI&P 357 was sold to Precision National Corp., Mount Vernon, Ill., in July 1985; scrapped by Gray Supply Co., North Little Rock, Ark.
19.	CRI&P 358 was sold to Precision National Corp., Mount Vernon, Ill., in July 1985; scrapped by Gray Supply Co., North Little Rock, Ark.
20.	CRI&P 359 was sold for scrap to Gray Supply Co., North Little Rock, Ark., in March 1985.
21.	CRI&P 362 was sold for scrap to Gray Supply Co., North Little Rock, Ark., in March 1985.
22.	CRI&P 363 was sold to Precision National Corp., Mount Vernon, Ill., in July 1985; scrapped by Gray Supply Co., North Little Rock, Ark.
23.	MP 622 was leased to NdeM in October 1989 to May 1990; stored unserviceable at Fort Worth, Tex.; sold to National Railway Equipment, Dixmoor, Ill., 17 March 1993; to Dakota Minnesota & Eastern 4004 in September 1994.
24.	CRI&P 365 was sold for scrap to Gray Supply Co., North Little Rock, Ark., in March 1985.
25.	CRI&P 366 was sold to Precision National Corp., Mount Vernon, Ill., in July 1985; scrapped by Gray Supply Co., North Little Rock, Ark.
26.	CRI&P 367 was sold to Precision National Corp., Mount Vernon, Ill., in July 1985; scrapped by Gray Supply Co., North Little Rock, Ark.
27.	MP 626 was sold to Morrison Knudsen, 28 October 1987, rebuilt to MNCR GP40FH-2 4189, completed on 28 December 1990.
28.	CRI&P 369 was sold for scrap to Gray Supply Co., North Little Rock, Ark., in March 1985.
29.	MP 628 was sold to Morrison Knudsen, 28 October 1987, rebuilt to SSW GP40-2 7274, completed on 9 November 1990 (assigned UP number 5391).
30.	MP 629 was sold to Morrison Knudsen, 28 October 1987, rebuilt to MNCR GP40FH-2 4188, completed on 30 November 1990.
31.	CRI&P 373 was sold for scrap to Precision National Corp., Mount Vernon, Ill., in July 1985.
32.	MP 631 was leased to NdeM in October 1989 to January 1991; stored unserviceable at Fort Worth, Tex.; sold to sold to National Railway Equipment, Dixmoor, Ill., 17 March 1993; to Dakota Minnesota & Eastern 4005 in September 1994.
33.	MP 632 was leased to NdeM in November 1989 to March 1990; stored unserviceable at Fort Worth, Tex.; sold to National Railway Equipment, 17 March 1993; to Missouri & Northern Arkansas (Railtex) 632.
34.	MP 633 was leased to NdeM in October 1989 to January 1991; stored unserviceable at Fort Worth, Tex.; sold to Phoenix Railway Corp., Spokane, Wash., in February 1992; sale rescinded; sold to Helm Financial, 3 April 1992.
35.	CRI&P 4703 was sold to Precision National Corp., Mount Vernon, Ill., in July 1985; scrapped by Gray Supply Co., North Little Rock, Ark.
36.	MP 635 was leased to NdeM in November 1989 to May 1990; returned to UP and stored unserviceable; scrapped by UP at Laredo, Tex., in November 1991; frame only sold for scrap to Southwest Railroad Car Parts, Longview, Tex., in February 1992.
37.	UP 636 was leased to NdeM in November 1989 to January 1991; stored unserviceable at Fort Worth, Tex.; sold to National Railway Equipment, Dixmoor, Ill., 17 March 1993; to Missouri & Northern Arkansas (Railtex) 636. (renumber date to UP changed from "Jun 1983" to "bef Jun 1982" based on sighting of UP 636 on June 25, 1982, in storage at Yermo by Randy Keller , per email on February 1, 2006)
38.	MP 637 was sold to VMV Enterprises, Paducah, Ky., at VMV on 28 January 1989; sold to Helm Financial and leased to UP as UP 856 in July 1989; returned to Helm in May 1998; rebuilt to GP38-2 and leased to UP as UP 2533, 30 July 1998.
39.	CRI&P 4707 was sold to Precision National Corp., Mount Vernon, Ill., in July 1985; scrapped by Gray Supply Co., North Little Rock, Ark., inSeptember 1985.
40.	MP 639 was leased to NdeM in October 1989 to March 1991; returned UP and stored unserviceable; sold to Phoenix Railway Corp., Spokane, Wash., in February 1992; sale rescinded; sold to Helm Financial, 27 March 1992.
41.	UP 640 was leased to NdeM in October 1989 to June 1990; stored unserviceable at Fort Worth, Tex.; sold to National Railway Equipment, Dixmoor, Ill., 17 March 1993; to Missouri & Northern Arkansas (Railtex) 640.
42.	CRI&P 4710 was sold to Precision National Corp., Mount Vernon, Ill., in July 1985; scrapped by Gray Supply Co., North Little Rock, Ark.
43.	MP 642 was leased to MP as CRI&P 4711 in February 1984; painted yellow and gray, with MP lettering in June 1985; leased to NdeM, delivered on 20 October 1989; returned to UP and stored in March 1990; sold to National Railway Equipment, 17 March 1993.
44.	UP 643 was leased to NdeM in October 1989 to June 1990; stored unserviceable at Fort Worth, Tex.; sold to National Railway Equipment, Dixmoor, Ill., 9 October 1991; to Dakota, Minnesota & Eastern 4002 in September 1994.
45.	CRI&P 4713 was sold to Precision National Corp., Mount Vernon, Ill., in July 1985; scrapped by Gray Supply Co., North Little Rock, Ark.
46.	UP 645 was relettered to MP 645 in February 1985; leased to NdeM in October 1989 to January 1990; returned to UP after being wrecked (fire damage) while on lease to NdeM; relettered back from MP 645 to UP 645 on 25 January 1990; stored unserviceable; sold to National Railway Equipment, Dixmoor, Ill., 17 March 1993; to Missouri & Northern Arkansas (Railtex) 645.
47.	UP 646 was sold to Morrison Knudsen, 28 October 1987, rebuilt to NJT GP40FH-2 4141, completed on 19 May 1989.
48.	UP 647 was leased to NdeM in September 1989 to February 1990; stored unserviceable at Fort Worth, Tex.; sold to Phoenix Railway Corp., Spokane, Wash., in February 1992; sale rescinded; sold to Helm Financial, 3 April 1992.
49.	UP 648 was sold to Precision National Corp., Mount Vernon, Ill., in July 1985; scrapped by Gray Supply Co., North Little Rock, Ark.
50.	CRI&P 4718 was sold to Precision National Corp., Mount Vernon, Ill., in July 1985; scrapped by Gray Supply Co., North Little Rock, Ark.
51.	CRI&P 4719 was sold to Precision National Corp., Mount Vernon, Ill., in July 1985; scrapped by Gray Supply Co., North Little Rock, Ark., inSeptember 1985.

EMD GP40 — 15 units
3000 horsepower; B-B trucks; 277,000 pounds operating weight

Road Number	First Number	Builder Date	Builder Number	Date To UP Yellow	Date To MP Yellow	Date To UP Number	Date Retired	Notes
UP 651	WP 3501	May 1966	31662	30 Dec 1983	22 May 1985	17 Apr 1988	5 Apr 1993	1, 2
UP 652	WP 3502	May 1966	31663	9 Jan 1984			5 Apr 1993	1, 3
UP 653	WP 3503	May 1966	31664	19 Jul 1984			5 Apr 1993	1, 4
UP 654	WP 3504	May 1966	31665	20 Jan 1984			5 Apr 1993	1, 5
UP 655	WP 3506	May 1966	31667	23 Dec 1985‡			5 Apr 1993	1, 6
UP 656	WP 3507	May 1966	31668	9 May 1984			5 Apr 1993	1, 7
UP 657	WP 3508	May 1966	31669	13 Apr 1984			5 Apr 1993	1, 8
UP 658	WP 3509	May 1966	31670	23 Nov 1983			5 Apr 1993	1, 9
UP 659	WP 3510	May 1966	31671	9 Jul 1984			5 Apr 1993	1, 10
UP 660	WP 3511	Apr 1967	33056	16 Jul 1984			5 Apr 1993	1, 11
UP 661	WP 3512	Apr 1967	33057	9 Dec 1985‡			5 Apr 1993	1, 12
UP 662	WP 3513	Apr 1967	33058	4 Mar 1984	21 May 1984	26 Apr 1989	5 Apr 1993	1, 13
UP 663	WP 3514	Apr 1967	33059	18 Apr 1984			5 Apr 1993	1, 14
UP 664	WP 3515	Apr 1967	33060	Apr 1984		10 Dec 1985‡	5 Apr 1993	1, 15
UP 665	WP 3516	Apr 1967	33061	6 Apr 1984	23 May 1985	12 Mar 1988	5 Apr 1993	1, 16

(‡) denotes North Little Rock style lettering.

General Notes:

a.	Original total of 16 units, numbered WP 3501-3516; 15 units to UP at merger; WP 3505 was retired by WP prior to the UP merger.
b.	UP 658 (ex WP 3509) was the first former WP units to be repainted to UP, completed on 23 November 1983.
c.	UP 651 was relettered to MP 651 on 22 May 1985, then relettered back to UP 651 on 17 April 1988.
d.	UP 662 was relettered to MP 662 on 21 May 1984, then relettered back to UP 662 on 26 April 1989.
e.	UP 665 was relettered to MP 665 on 23 May 1985, then relettered back to UP 665 on 12 March 1988.
f.	Some sources show that UP 661 was retired on 3 July 1987 and sold for scrap; current UP records show UP 661 as one of the units retired on 5 April 1993 and returned to lessor.
g.	UP 651-659 were built on EMD order number 7878.
h.	UP 660-665 were built on EMD order number 7981.

Notes:

1.	All 15 units were retired upon expiration of their lease to UP; returned to owner/lessor; rebuilt by Morrison Knudsen at Boise, Idaho, to GP40-2s for service on Kansas City Southern (unknown if units were sold or leased).
2.	UP 651 became KCS 4765, completed on 12 November 1993.
3.	UP 652 became KCS 4766, completed on 20 November 1993.
4.	UP 653 became KCS 4767, completed on 28 November 1993.
5.	UP 654 became KCS 4768, completed on 9 December 1993.
6.	UP 655 became KCS 4769, completed on 10 December 1993.
7.	UP 656 became KCS 4770, completed on 6 November 1993.
8.	UP 657 became KCS 4771, completed on 16 December 1993.
9.	UP 658 became KCS 4772, completed on 21 December 1993.
10.	UP 659 became KCS 4773, completed on 27 December 1993.
11.	UP 660 became KCS 4774, completed on 4 January 1994.
12.	UP 661 became KCS 4775, completed on 8 January 1994.
13.	UP 662 became KCS 4776, completed on 11 January 1994.
14.	UP 663 became KCS 4777, completed on 13 January 1994.
15.	UP 664 became KCS 4778, completed on 25 January 1994.
16.	UP 665 became KCS 4779, completed on 27 January 1994

EMD GP40 — 26 units
3000 horsepower; B-B trucks; 277,000 pounds operating weight

Road Number	First Number	Builder Date	Builder Number	Date To UP Number	Date Retired	Notes
(UP 666)	WP 3517	Aug 1970	36824		20 Aug 1985	1
(UP 667)	WP 3518	Aug 1970	36825		20 Aug 1985	2
(UP 668)	WP 3519	Aug 1970	36826		20 Aug 1985	3
(UP 669 )	WP 3520	Aug 1970	36827		20 Aug 1985	4
(UP 670)	WP 3521	Aug 1970	36828		20 Aug 1985	5
(UP 671)	WP 3522	Aug 1970	36783		20 Aug 1985	6
(UP 672)	WP 3523	Aug 1970	36784		20 Aug 1985	7
(UP 673)	WP 3524	Aug 1970	36785		20 Aug 1985	8
(UP 674)	WP 3525	Aug 1970	36786		20 Aug 1985	9
(UP 675)	WP 3526	Aug 1970	36787		20 Aug 1985	10
UP 676	WP 3528	Aug 1971	37839	Aug 1985	30 Sep 1986	11
(UP 677)	WP 3529	Aug 1971	37840		30 Sep 1986	12
(UP 678)	WP 3530	Aug 1971	37841		30 Sep 1986	13
UP 679	WP 3531	Aug 1971	37842	Aug 1985	30 Sep 1986	14
UP 680	WP 3532	Aug 1971	37843	8 Dec 1983	30 Sep 1986	15
UP 681	WP 3533	Aug 1971	37844	Aug 1985	30 Sep 1986	16
(UP 682)	WP 3534	Aug 1971	37845		30 Sep 1986	17
(UP 683)	WP 3535	Aug 1971	37846		30 Sep 1986	18
UP 684	WP 3536	Aug 1971	37847	Aug 1985	30 Sep 1986	19
(UP 685)	WP 3537	Aug 1971	37848		30 Sep 1986	20
UP 686	WP 3538	Sep 1971	37849	Aug 1985	30 Sep 1986	21
(UP 687)	WP 3539	Sep 1971	37850		30 Sep 1986	22
(UP 688)	WP 3541	Sep 1971	37852		30 Sep 1986	23
(UP 689)	WP 3542	Sep 1971	37853		30 Sep 1986	24
UP 690	WP 3543	Sep 1971	37854	Aug 1985	30 Sep 1986	25
(UP 691)	WP 3544	Sep 1971	37855		30 Sep 1986	26

General Notes:

a.	Original total of 28 units, numbered WP 3517-3544; 26 units to UP at merger; WP 3527 and WP 3540 were retired by WP prior to the UP merger.
b.	WP 3532 was painted full UP yellow and gray and lettered for Western Pacific in late March 1983, the first former WP unit to receive yellow paint. Relettered to UP 680 in December 1983.
c.	WP 3517-3526 were assigned UP 666-691. Only seven units carried UP numbers: one (UP 680) was the only unit fully painted yellow and gray, completed in December 1983. The other six (UP 676, 679, 681, 684, 686, 690) were only temporarily renumbered to their assigned UP numbers during a 30-day lease to MKT during August and September 1985.
d.	All 26 former WP unrebuilt GP40s were placed into storage at Stockton in March 1983; then in late March, all stored units were moved from Stockton to Oroville, and in May they were moved to Portola. In August the units were moved to Salt Lake City, joining other WP units already in storage there.
e.	All 26 units were removed from storage at Salt Lake City, Utah, and sent to MP in January 1984 for service in Texas, being assigned to Fort Worth, Tex., for maintenance. In April 1985 the units were placed into storage (at Houston and Spring, Tex., and North Little Rock, Ark.) to avoid maintenance costs until their lease expired. MP had planned to purchase the units after the lease expired, and rebuild them into GP38-2's, but the projected cost of that program was found to be too high and the units were retired instead.
f.	WP 3517-3526 were retired in August 1985 upon expiration of the 15 year lease; returned to owner/lessor on 31 August 1985. Between September 1985 and February 1987, the units were leased to Kyle Railways (five units in September 1985 to November 1986), MKT (five units, July 1986 to September 1986), and Soo Line (ten units in September and November 1986 to February 1987). Upon return from lease to Soo Line in February 1987, all 10 units were moved to Mid-America Car in Kansas City for reconditioning and lease to start-up Chicago, Missouri & Western.
g.	During August and September 1985, UP leased six GP40s in the WP 3527-3544 group to MKT for 30 days for service on their OKT, former-CRI&P, lines. The units were all still in full WP paint and numbers, they were renumbered to UP 600 series numbers by blacking out their former WP lettering and numbers and spray-painting the UP numbers on the cab sides in orange. All 16 units in the WP 3527-3544 group were leased to MKT, but only six were actually sent to MKT, the other ten not being in operating condition. Included were UP 676 (WP 3528), 679 (WP 3531), 681 (WP 3533), 684 (WP 3536), 686 (WP 3538), 690 (WP 3543). The units were returned to UP in September 1985 and stored at Lloyd Yard in Spring, Tex. The other 10 units had remained in storage at either Spring or Houston, Tex.
h.	WP 3527-3544 were retired in September 1986 upon expiration of their lease; returned to owner/lessor, GATX; stored on UP property until late February 1987, when GATX shipped the units to Mid-America Car in Kansas City for reconditioning. WP 3529, 3539, UP 686 and 690 were shipped from North Little Rock in primer paint with their UP or WP numbers in white. UP 680 (ex WP 3532) was the only yellow unit in the group.
i.	WP 3517-3526 (10 units, returned to owner GATX in August 1985) and WP 3527-3544 (16 units, returned to owner GATX in September 1986) were leased to the Chicago, Missouri & Western Railroad (CMNW) in April 1987 for that new road's start-up. The group of 26 units were renumbered to CMNW 3000-3009, 3011-3025, 3010. In January 1990, all 26 units passed to Gateway Western Railway (GWWR), as successor to bankrupt Chicago, Missouri & Western. In July 1990, five units were sold to Morrison Knudsen for rebuild to SP/SSW GP40-2s. All were completed in November 1990. In September 1990, 17 units were sold to Wilson Railway Co., for resale to Wisconsin Central, Ltd. Between September 1990 and January 1991, the units were rebuilt by WC's North Fond du Lac shops, emerging as fully painted WC units. Four units remained in service on Gateway Western: GWWR 3008 (ex WP 3525), GWWR 3013 (ex WP 3530), GWWR 3019 (ex UP 684), and GWWR 3020 (ex WP 3537).
j.	WP 3517-3526 were built on EMD order number 7272.
k.	WP 3527-3544 were built on EMD order number 7332.

Notes:

1.	WP 3517 was renumbered to CM&W 3000; to GWWR 3000; to WC 3000.
2.	WP 3518 was renumbered to CM&W 3001; to GWWR 3001; to SSW GP40-2 7277, completed on 18 November 1990 (assigned UP number 5394).
3.	WP 3519 was renumbered to CM&W 3002; to GWWR 3002; to WC 3002.
4.	WP 3520 was renumbered to CM&W 3003; to GWWR 3003; to WC 3003.
5.	WP 3521 was renumbered to CM&W 3004; to GWWR 3004; to WC 3004.
6.	WP 3522 was renumbered to CM&W 3005; to GWWR 3005; to WC 3005.
7.	WP 3523 was renumbered to CM&W 3006; to GWWR 3006; to WC 3006.
8.	WP 3524 was renumbered to CM&W 3007; to GWWR 3007; to WC 3007.
9.	WP 3525 was renumbered to CM&W 3008; to GWWR 3008.
10.	WP 3526 was renumbered to CM&W 3009; to GWWR 3009; to WC 3009.
11.	UP 676 was renumbered to CM&W 3011; to GWWR 3011; to WC 3011.
12.	WP 3529 was renumbered to CM&W 3012; to GWWR 3012; to WC 3012.
13.	WP 3530 was renumbered to CM&W 3013; to GWWR 3013.
14.	UP 679 was renumbered to CM&W 3014; to GWWR 3014; to WC 3014.
15.	UP 680 was renumbered to CM&W 3015; to GWWR 3015; to WC 3015.
16.	UP 681 was renumbered to CM&W 3016; to GWWR 3016; to SSW GP40-2 7279, completed on 30 November 1990 (assigned UP number 5396).
17.	WP 3534 was renumbered to CM&W 3017; to GWWR 3017; to WC 3017.
18.	WP 3535 was renumbered to CM&W 3018; to GWWR 3018; to SSW GP40-2 7275, completed on 10 November 1990 (assigned UP number 5392).
19.	UP 684 was renumbered to CM&W 3019; to GWWR 3019.
20.	WP 3537 was renumbered to CM&W 3020; to GWWR 3020.
21.	UP 686 was renumbered to CM&W 3021; to GWWR 3021; to SSW GP40-2 7280, completed on 30 November 1990 (assigned UP number 5397).
22.	WP 3539 was renumbered to CM&W 3022; to GWWR 3022; to WC 3022.
23.	WP 3541 was renumbered to CM&W 3023; to GWWR 3023; to WC 3023.
24.	WP 3542 was renumbered to CM&W 3024; to GWWR 3024; to WC 3024.
25.	UP 690 was renumbered to CM&W 3025; to GWWR 3025; to WC 3025.
26.	WP 3544 was renumbered to C&MW 3010; to GWWR 3010; to SSW GP40-2 7278, completed on 30 November 1990 (assigned UP number 5395).