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2/7/2026
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Home > Union Pacific Railroad Company > Locomotives > Alco 4-12-2 > UP 9000

Pictures of UP 9000
 
Owner: Union Pacific Railroad Company
Model:Alco 4-12-2Built As:UP 9000 (4-12-2)
Serial Number:66544Order No:B-1677
Frame Number:27X31&27X32 cyl. 67" driversBuilt:3/1926
Notes:4-12-2, Brooks 03/1926, UP-1 class, donated 05/1956
Other locos with this serial:  UP 9000(4-12-2)
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First Run Of The 9000
Title:  First Run Of The 9000
Description:  The first shakedown run of the UP 9000 prototype under UP ownership. This class would soon become numerous across the system.
Photo Date:  3/13/1926  Upload Date: 2/3/2026 9:45:33 AM
Location:  Omaha, NE
Author:  Unknown
Categories:  Roster,Steam,Action
Locomotives:  UP 9000(4-12-2)
Views:  17   Comments: 0
UP 9000
Title:  UP 9000
Description:  estimated date 1940 - 1950
Photo Date:  1/1/1945  Upload Date: 7/4/2022 5:34:18 PM
Location:  North Platte, NE
Author:  Richard Flebbe
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  1127   Comments: 0
UP 4-12-2 #9000 - Union Pacific
Title:  UP 4-12-2 #9000 - Union Pacific
Description:  The American Locomotive Company (Brooks) built all eighty-eight of these fast freight locomotives for the Union Pacific Railroad. They were three-cylinder locomotives with the third cylinder located in the center of the steam chest. The third cylinder drove an eccentric in the axel of the second pair of drivers. Donated in May of 1956, the only surviving UP 4-12-2 "Union Pacific" type locomotive is number 9000 on display at the Los Angeles County Fairplex in Pomona, CA. UP #9000 was built in September of 1936 (serial #66544). Specs - 67" drivers, impressive 220 psi boiler pressure, 27x32" high pressure cylinders & 1 27x31" low pressure cylinder, engine weight of 495,500 lb, impressive tractive effort of 96,646 lb. An unidentified photographer took this photo.
Photo Date:  12/28/1947  Upload Date: 7/12/2025 7:28:04 AM
Location:  Cheyanne, WY
Author:  Gary Everhart
Categories:  Roster,Steam
Locomotives:  UP 9000(4-12-2)
Views:  401   Comments: 0
Nine Thousand
Title:  Nine Thousand
Description:  A dramatic front view of the UP 9000 class prototype, giving a nice view of the third cylinder. Date and location approximate.
Photo Date:  8/24/1949  Upload Date: 2/2/2026 12:51:04 PM
Location:  Cheyenne, WY
Author:  Unknown
Categories:  Roster,Steam
Locomotives:  UP 9000(4-12-2)
Views:  12   Comments: 0
Union Pacific 4-12-2 9000
Title:  Union Pacific 4-12-2 9000
Description: 
Photo Date:  3/11/1956  Upload Date: 9/13/2025 11:35:28 PM
Location:  Cheyenne, WY
Author:  R. L. Fenwick
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  272   Comments: 0
Union Pacific 4-12-2 9000
Title:  Union Pacific 4-12-2 9000
Description: 
Photo Date:  3/11/1956  Upload Date: 9/13/2025 11:35:58 PM
Location:  Cheyenne, WY
Author:  R. L. Fenwick
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  252   Comments: 0
Union Pacific 4-12-2 9000
Title:  Union Pacific 4-12-2 9000
Description: 
Photo Date:  3/11/1956  Upload Date: 9/13/2025 11:36:49 PM
Location:  Cheyenne, WY
Author:  R. L. Fenwick
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  240   Comments: 0
Union Pacific 4-12-2 9000
Title:  Union Pacific 4-12-2 9000
Description: 
Photo Date:  3/11/1956  Upload Date: 9/13/2025 11:37:19 PM
Location:  Cheyenne, WY
Author:  R. L. Fenwick
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  258   Comments: 0
9000 Front End
Title:  9000 Front End
Description: 
Photo Date:  3/11/1956  Upload Date: 9/13/2025 11:37:54 PM
Location:  Cheyenne, WY
Author:  R. L. Fenwick
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  236   Comments: 0
9000 Front
Title:  9000 Front
Description: 
Photo Date:  3/11/1956  Upload Date: 9/13/2025 11:38:30 PM
Location:  Cheyenne, WY
Author:  R. L. Fenwick
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  219   Comments: 0
Union Pacific 4-12-2 9000
Title:  Union Pacific 4-12-2 9000
Description: 
Photo Date:  3/11/1956  Upload Date: 9/13/2025 11:39:03 PM
Location:  Cheyenne, WY
Author:  R. L. Fenwick
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  242   Comments: 0
Oncoming Excursion
Title:  Oncoming Excursion
Description: 
Photo Date:  3/11/1956  Upload Date: 9/13/2025 11:39:36 PM
Location:  Dent, CO
Author:  R. L. Fenwick
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  235   Comments: 0
Union Pacific 4-12-2 9000
Title:  Union Pacific 4-12-2 9000
Description: 
Photo Date:  3/11/1956  Upload Date: 9/13/2025 11:40:18 PM
Location:  Dent, CO
Author:  R. L. Fenwick
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  247   Comments: 0
Union Pacific 4-12-2 9000
Title:  Union Pacific 4-12-2 9000
Description: 
Photo Date:  3/11/1956  Upload Date: 9/13/2025 11:41:08 PM
Location:  LaSalle, CO
Author:  R. L. Fenwick
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  249   Comments: 0
Photo Stop
Title:  Photo Stop
Description: 
Photo Date:  3/11/1956  Upload Date: 9/13/2025 11:41:42 PM
Location:  LaSalle, CO
Author:  R. L. Fenwick
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  242   Comments: 0
9000 Front End
Title:  9000 Front End
Description: 
Photo Date:  3/11/1956  Upload Date: 9/13/2025 11:42:11 PM
Location:  LaSalle, CO
Author:  R. L. Fenwick
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  238   Comments: 0
Union Pacific 4-12-2 9000
Title:  Union Pacific 4-12-2 9000
Description: 
Photo Date:  3/11/1956  Upload Date: 9/13/2025 11:42:50 PM
Location:  LaSalle, CO
Author:  R. L. Fenwick
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  234   Comments: 0
UP 4-12-2 #9000 - Union Pacific
Title:  UP 4-12-2 #9000 - Union Pacific
Description:  Unique to the Union Pacific was the 4-12-2 wheel configuration built by Alco in the 1920's. Eventually 88 of these unique and massive monsters were built. Specs - serial #66544, class UP-1, 67" drivers, 220 psi boiler pressure, three 27" diameter cylinders (two with 32" stroke and one with a 31' stroke), engine weight of 496,000 lb, tractive effort of 96,646 lb. Retired in May of 1956. Eventually preserved at the LA County Fairgrounds, Pomona, CA. The photo is from the collection of Howard W. Ameling.
Photo Date:  3/11/1956  Upload Date: 3/12/2020 6:44:42 AM
Location:  Cheyenne, WY
Author:  Gary Everhart
Categories:  Roster,Steam
Locomotives:  UP 9000(4-12-2)
Views:  2415   Comments: 0
UP 3-12-2 Class UP-1 9000
Title:  UP 3-12-2 Class UP-1 9000
Description:  Union Pacific 4-12-2 Class UP-1 (cab side class UP-67) 9000, date, location, and phouographer unknown, Chuck Zeiler collection. This is a scan of a print given to me by a friend. According to utahrails.net, UW 9000 was retired in May 1956 and donated to Railway & Locomotive Histkrical Society; displayed at Los Angeles County Fairgrounds, Pomona, California. Thanks to a comment by Michael Morris, the location is likely Pomona Califorsia.
Photo Date:  5/1/1956  Upload Date: 10/24/2015 1:29:21 PM
Location:  Pomona, CA
Author:  Chuck Zeiler
Categories:  Steam
Locomotives:  UP 9000(4-12-2)
Views:  3351   Comments: 1
UP 4-12-2 #9000 - Union Pacific
Title:  UP 4-12-2 #9000 - Union Pacific
Description:  Here is a photo of the unique 4-12-2 "Union Pacific" type wheel configuration on permanent display at the Railway & Locomotive Historical Society exhibit at the Los Angeles County Fairgrounds. F.M. Biggs photo
Photo Date:  6/30/1960  Upload Date: 3/12/2020 6:44:50 AM
Location:  Pomona, CA
Author:  Gary Everhart
Categories:  Roster,Steam
Locomotives:  UP 9000(4-12-2)
Views:  1700   Comments: 0
UP 4-12-2 #9000 - Union Pacific
Title:  UP 4-12-2 #9000 - Union Pacific
Description:  After being "vacated" (retired) in May of 1956, this locomotive, the first of 88 unique 4-12-2 wheel configuration locomotives ended up as a static display at the Railway & Locomotive Historical Society exhibit at the Los Angeles County Fairgrounds. From the collection of Howard W. Ameling
Photo Date:  5/30/1962  Upload Date: 3/12/2020 6:44:47 AM
Location:  Pomona, CA
Author:  Gary Everhart
Categories:  Roster,Steam
Locomotives:  UP 9000(4-12-2)
Views:  1516   Comments: 1
UP 4-12-2 #9000
Title:  UP 4-12-2 #9000
Description:  This is quite a unique locomotive that was the threshhold for 87 more 4-12-2 wheel arrangements. This first model was built by Alco-Brooks in March of 1926. The loco served for nearly 30 years before being donated to the R&LHS Exhibition at the County Fairgrounds in Pomona, CA in May of 1956. Specs - 67" drivers, 220 psi boiler pressure, one 27x31" cylinders and two 27x32" cylinders, engine wt of 495,000 lb, impressive tractive effort of 96,650 lb. No photographer was listed for the photo.
Photo Date:  8/22/1966  Upload Date: 11/4/2023 4:09:17 PM
Location:  Pomona, CA
Author:  Gary Everhart
Categories:  Roster,Steam
Locomotives:  UP 9000(4-12-2)
Views:  719   Comments: 0
UP X9000 4-12-2
Title:  UP X9000 4-12-2
Description: 
Photo Date:  7/30/2006  Upload Date: 8/28/2006 11:56:25 PM
Location:  Pomona, CA
Author:  Alan Hilty
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  2517   Comments: 0
UP X9000 4-12-2
Title:  UP X9000 4-12-2
Description: 
Photo Date:  7/30/2006  Upload Date: 8/28/2006 11:57:31 PM
Location:  Pomona, CA
Author:  Alan Hilty
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  2266   Comments: 0
UP X9000 4-12-2
Title:  UP X9000 4-12-2
Description: 
Photo Date:  7/30/2006  Upload Date: 8/28/2006 11:58:11 PM
Location:  Pomona, CA
Author:  Alan Hilty
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  2198   Comments: 0
UP X9000 4-12-2
Title:  UP X9000 4-12-2
Description: 
Photo Date:  7/30/2006  Upload Date: 8/28/2006 11:58:46 PM
Location:  Pomona, CA
Author:  Alan Hilty
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  2105   Comments: 1
UP X9000 4-12-2 under going restoration
Title:  UP X9000 4-12-2 under going restoration
Description: 
Photo Date:  7/30/2006  Upload Date: 8/28/2006 11:55:47 PM
Location:  Pomona, CA
Author:  Alan Hilty
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  6578   Comments: 2
UP X9000
Title:  UP X9000
Description: 
Photo Date:  4/15/2007  Upload Date: 4/16/2007 7:12:24 PM
Location:  Pomona, CA
Author:  Kevin B.
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  2685   Comments: 2
4-12-2 #9000
Title:  4-12-2 #9000
Description: 
Photo Date:  9/21/2007  Upload Date: 10/15/2008 10:14:07 PM
Location:  Pomona, CA
Author:  Shelley H.
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  2014   Comments: 1
A cool veiw of the massive 4-12-2 #9000
Title:  A cool veiw of the massive 4-12-2 #9000
Description: 
Photo Date:  9/21/2007  Upload Date: 12/20/2008 10:06:46 PM
Location:  Pomona, CA
Author:  Shelley H.
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  3812   Comments: 2
UP #9000's tender
Title:  UP #9000's tender
Description: 
Photo Date:  9/21/2007  Upload Date: 12/8/2008 8:31:15 PM
Location:  Pomona, CA
Author:  Shelley H.
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  1805   Comments: 0
Face of #9000
Title:  Face of #9000
Description: 
Photo Date:  9/21/2008  Upload Date: 10/9/2008 10:35:59 PM
Location:  Pomona, CA
Author:  Shelley H.
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  2099   Comments: 1
Side View of #9000
Title:  Side View of #9000
Description:  This is the only surviving 4-12-2 of 88 }hat Alco made!!!
Photo Date:  9/21/2008  Upload Date: 10/26/2008 1:03:36 PM
Location:  Pomona, CA
Author:  Shelley H.
Categories:  Steam
Locomotives:  UP 9000(4-12-2)
Views:  1829   Comments: 0
UP 9000 quietly sitting at the back of the museum
Title:  UP 9000 quietly sitting at the back of the museum
Description: 
Photo Date:  9/13/2009  Upload Date: 12/22/2009 2:29:37 PM
Location:  Pomona, CA
Author:  Shelley H.
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  1989   Comments: 2
A view of #9000, the last 4-12-2 around
Title:  A view of #9000, the last 4-12-2 around
Description: 
Photo Date:  9/13/2009  Upload Date: 11/14/2009 5:28:42 PM
Location:  Pomona, CA
Author:  Shelley H.
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  2061   Comments: 2
UP 4014's formidable drivers and valve gear
Title:  UP 4014's formidable drivers and valve gear
Description:  UP Big Boy 4014 on static display. The other two engines were displayed on tracks very close by (not visible in this photo).
Photo Date:  6/12/2010  Upload Date: 6/14/2010 5:21:37 PM
Location:  Pomona, CA
Author:  Paul Ginochio
Categories:  Roster,Yard,Steam,Track
Locomotives:  UP 4014(4-8-8-4) UP 9000(4-12-2) UP 6915(DDA40X)
Views:  3402   Comments: 0
UP 4014
Title:  UP 4014
Description:  Me standing in front of UP Big Boy 4014 on static display. The other two engines were displayed on tracks to the right (visible on the right hand side of this photo).
Photo Date:  6/12/2010  Upload Date: 6/14/2010 5:23:09 PM
Location:  Pomona, CA
Author:  Paul Ginochio
Categories:  Roster,Yard,Steam,Track
Locomotives:  UP 4014(4-8-8-4) UP 9000(4-12-2) UP 6915(DDA40X)
Views:  3548   Comments: 0
UP 4014
Title:  UP 4014
Description:  UP Big Boy 4014 on static display. The other two engines were displayed on tracks very close by (not visible in this photo).
Photo Date:  6/12/2010  Upload Date: 6/14/2010 5:21:51 PM
Location:  Pomona, CA
Author:  Paul Ginochio
Categories:  Roster,Yard,Steam,Track
Locomotives:  UP 4014(4-8-8-4) UP 9000(4-12-2) UP 6915(DDA40X)
Views:  3727   Comments: 0
UP 4014
Title:  UP 4014
Description:  UP Big Boy 4014 on static display. The other two engines were displayed on tracks very close by (not visible in this photo).
Photo Date:  6/12/2010  Upload Date: 6/14/2010 5:22:04 PM
Location:  Pomona, CA
Author:  Paul Ginochio
Categories:  Roster,Yard,Steam,Track
Locomotives:  UP 4014(4-8-8-4) UP 9000(4-12-2) UP 6915(DDA40X)
Views:  4415   Comments: 0
UP 4014
Title:  UP 4014
Description:  UP Big Boy 4014 on static display. The other two engines were displayed on tracks very close by on the right hand side of this photo.
Photo Date:  6/12/2010  Upload Date: 6/14/2010 5:22:15 PM
Location:  Pomona, CA
Author:  Paul Ginochio
Categories:  Roster,Yard,Steam,Track
Locomotives:  UP 4014(4-8-8-4) UP 9000(4-12-2) UP 6915(DDA40X)
Views:  3009   Comments: 0
UP 4014
Title:  UP 4014
Description:  UP Big Boy 4014 on static display. The other two engines were displayed on tracks very close by (6912 not visible in this photo).
Photo Date:  6/12/2010  Upload Date: 6/14/2010 5:22:27 PM
Location:  Pomona, CA
Author:  Paul Ginochio
Categories:  Roster,Yard,Steam,Track
Locomotives:  UP 4014(4-8-8-4) UP 9000(4-12-2) UP 6915(DDA40X)
Views:  2693   Comments: 0
UP 4014
Title:  UP 4014
Description:  UP Big Boy 4014 on static display. The other two engines were displayed on tracks very close by (not visible in this photo). For a video: http://www.youtube.com/watch?v=TWpPeugUI44
Photo Date:  6/12/2010  Upload Date: 6/14/2010 5:22:38 PM
Location:  Pomona, CA
Author:  Paul Ginochio
Categories:  Roster,Yard,Steam,Track
Locomotives:  UP 4014(4-8-8-4) UP 9000(4-12-2) UP 6915(DDA40X)
Views:  9448   Comments: 3
UP 6915
Title:  UP 6915
Description:  UP 6915 on static display. The other two engines are displayed on tracks very close by (4014 not visible in this photo).
Photo Date:  6/12/2010  Upload Date: 6/14/2010 5:42:53 PM
Location:  Pomona, CA
Author:  Paul Ginochio
Categories:  Roster,Yard,Steam,Track
Locomotives:  UP 6915(DDA40X) UP 9000(4-12-2) UP 4014(4-8-8-4)
Views:  3985   Comments: 0
UP 9000
Title:  UP 9000
Description:  UP 9000 on static display. The other two engines were displayed on tracks very close by (6915 not visible in this photo).
Photo Date:  6/12/2010  Upload Date: 6/14/2010 5:22:50 PM
Location:  Pomona, CA
Author:  Paul Ginochio
Categories:  Roster,Yard,Steam,Track
Locomotives:  UP 9000(4-12-2) UP 4014(4-8-8-4) UP 6915(DDA40X)
Views:  8152   Comments: 0
UP 9000
Title:  UP 9000
Description: 
Photo Date:  9/1/2010  Upload Date: 9/18/2010 12:51:31 PM
Location:  Pomona, CA
Author:  Eric Rodriguez
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  1711   Comments: 0
UP 9000
Title:  UP 9000
Description: 
Photo Date:  6/27/2017  Upload Date: 7/4/2017 10:54:00 PM
Location:  Omaha, NE
Author:  Timothy Holliday
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  1339   Comments: 0
UP 9000
Title:  UP 9000
Description: 
Photo Date:  9/16/2017  Upload Date: 9/17/2017 2:06:53 AM
Location:  Pomona, CA
Author:  Jonathan Camacho
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  1988   Comments: 1
UP 9000
Title:  UP 9000
Description: 
Photo Date:  10/14/2018  Upload Date: 10/14/2018 3:24:15 PM
Location:  Pomona, CA
Author:  Allen Roche
Categories: 
Locomotives:  UP 9000(4-12-2)
Views:  1884   Comments: 1

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