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6/26/2025
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Home > Union Pacific Railroad Company > Locomotives > EMD SD40-2 > UP 3723
Pictures of UP 3723
 
Owner: Union Pacific Railroad Company
Model:EMD SD40-2Built As:UP 3723 (SD40-2)
Serial Number:796297-65Order No:796297
Frame Number:796297-65Built:2/1980
Notes:UP 1855 SD40N 6/23/14
Other locos with this serial:  UP 3723(SD40-2) UP 1855(SD40N)
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UP 3370
Title:  UP 3370
Description:  UP 3370 departs southbound in the afternoon
Photo Date:  9/13/1980  Upload Date: 4/5/2019 8:38:28 PM
Location:  Seattle, WA
Author:  J Fischer
Categories:  Roster,Scenic,Yard,Track,Action
Locomotives:  UP 3370(SD40-2) UP 3723(SD40-2)
Views:  745   Comments: 0
UP 3723
Title:  UP 3723
Description:  Nose view of UP 3723.
Photo Date:  1/17/1982  Upload Date: 8/8/2019 1:29:45 PM
Location:  Victorville, CA
Author:  Ron Hawkins
Categories:  Roster
Locomotives:  UP 3723(SD40-2)
Views:  307   Comments: 0
UP 3723
Title:  UP 3723
Description:  For a few years in the early 1980's UP used manned helpers based out of Victorville. UP 3723 along with others in the 372X series were often used in this service.
Photo Date:  10/29/1983  Upload Date: 8/8/2019 1:30:16 PM
Location:  San Bernardino, CA
Author:  Ron Hawkins
Categories:  Roster
Locomotives:  UP 3723(SD40-2)
Views:  311   Comments: 0
UP 3723
Title:  UP 3723
Description:  WB at WY-NE State Line
Photo Date:  5/16/1997  Upload Date: 11/28/2016 6:31:20 PM
Location:  Pine Bluffs, WY
Author:  Bruce Gage
Categories:  Action
Locomotives:  UP 3723(SD40-2)
Views:  331   Comments: 1
UGLSE
Title:  UGLSE
Description:  Garbage Empties Northbound
Photo Date:  5/29/2004  Upload Date: 5/31/2004 1:50:26 AM
Location:  Steilacoom, WA
Author:  Aaron B. Hockley
Categories: 
Locomotives:  UP 3657(SD40-2) UP 3511(SD40-2) UP 3723(SD40-2)
Views:  1321   Comments: 2
UP 3723
Title:  UP 3723
Description:  Union Pacific Railroad Company
Photo Date:  6/17/2005  Upload Date: 6/17/2005 11:28:20 PM
Location:  Willard, UT
Author:  Rodney J. Sorensen
Categories: 
Locomotives:  UP 3723(SD40-2)
Views:  507   Comments: 0
Tied down local
Title:  Tied down local
Description:  Tied down for the morning...to be used later in the day
Photo Date:  9/12/2005  Upload Date: 3/4/2006 1:36:42 AM
Location:  North Las Vegas, NV
Author:  Michael Cassidy
Categories: 
Locomotives:  UP 3723(SD40-2)
Views:  1379   Comments: 6
UP 3723
Title:  UP 3723
Description:  Union Pacific Railroad Company
Photo Date:  1/28/2006  Upload Date: 1/30/2006 3:01:40 PM
Location:  Ogden, UT
Author:  Rodney J. Sorensen
Categories: 
Locomotives:  UP 3723(SD40-2)
Views:  446   Comments: 0
Short westbound freight
Title:  Short westbound freight
Description:  Coming off the salt flats
Photo Date:  7/14/2006  Upload Date: 7/19/2006 7:39:55 PM
Location:  Wendover, UT
Author:  Tim Huemmer
Categories:  Action
Locomotives:  UP 3723(SD40-2)
Views:  599   Comments: 1
Rolling past the salt flats
Title:  Rolling past the salt flats
Description:  Love the trio of SD40-2s!
Photo Date:  7/14/2006  Upload Date: 7/19/2006 7:39:56 PM
Location:  Wendover, UT
Author:  Tim Huemmer
Categories:  Scenic,Action
Locomotives:  UP 3723(SD40-2) UP 3696(SD40-2)
Views:  729   Comments: 0
UP 3723
Title:  UP 3723
Description: 
Photo Date:  9/1/2006  Upload Date: 9/2/2006 12:45:18 AM
Location:  Salt Lake City, UT
Author:  John K. Pack
Categories: 
Locomotives:  UP 3723(SD40-2)
Views:  681   Comments: 0
UP 3723
Title:  UP 3723
Description: 
Photo Date:  2/20/2007  Upload Date: 2/21/2007 5:30:47 AM
Location:  Provo, UT
Author:  John K. Pack
Categories: 
Locomotives:  UP 3723(SD40-2)
Views:  550   Comments: 0
Eastbound local
Title:  Eastbound local
Description: 
Photo Date:  3/10/2007  Upload Date: 9/3/2008 3:56:05 PM
Location:  Wendover, UT
Author:  Paul Leach
Categories: 
Locomotives:  UP 3723(SD40-2)
Views:  491   Comments: 0
UP 3723
Title:  UP 3723
Description: 
Photo Date:  9/12/2008  Upload Date: 9/15/2008 12:41:23 AM
Location:  Sharp, UT
Author:  John K. Pack
Categories: 
Locomotives:  UP 3723(SD40-2)
Views:  464   Comments: 0

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