Union Pacific Diesel Locomotives
This page was last updated on May 10, 2012.
Diesel Locomotive Roster — An index page for the Union Pacific diesel locomotive roster, with full and complete coverage of the period of 1934 through 2001, including all merger.
Diesel Roster Changes — An index page for changes to UP's diesel locomotive roster, from 1996 through 2000. (Please note that all of these changes have all been incorporated into the roster listings themselves.)
Union Pacific Switchers and Slugs — Edited versions of the original text used in 1996 for the publication of "Union Pacific Switchers and Slugs", published by Withers Publishing Co. The book has 116 pages; 238 black and white photos; 37 color photos; and full rosters of all of UP's EMD, Alco, Baldwin, and GE switchers, plus its yard slugs and road slugs, and is still available from the publisher.
"Serves All The West" — A history of Union Pacific dieselization, from 1934 to 1982. An edited and updated version of the text used in Diesels of the Union Pacific, 1934-1982, The Classic Era, Volume 1 (ISBN 1-881411-24-9), and Diesels of the Union Pacific, 1934-1982, The Classic Era, Volume 2 (ISBN 1-881411-29-X), both by Don Strack (Withers Publishing Co., 1999 and 2005)
(These two books, which have hundreds of photos, are still available from the publisher. Click here for more information, and here for a link to the book at Withers Publishing.)
Union Pacific Diesel Articles — A link to the listing on the Articles Index page.
UP Diesel Locomotive Painting Lettering & Numbering — An index page to pages about Union Pacific's diesel locomotive painting, lettering and numbering.
UP Diesel Locomotive Features — Information about internal and external features that have been added to UP locomotives.
UP's Final Four — A separate page about Union Pacific's last four SD40-2s, numbered as 3805-3808 and delivered in late 1980.
UP's EMD SD70Ms — Information about UP's SD70M locomotives, delivered beginning in April 2000.
UP Genset Units from B23-7s and B30-7s — A list of the 83 UP B23-7s and B30-7s rebuilt to UPY Genset units.
UP Diesel Locomotive AFEs — The text for research notes taken from Union Pacific Authorities For Expenditures, corporate-level funding authority for changes and improvements to Union Pacific's fleet of diesel locomotives in the period 1940 to 1956. This is raw UP locomotive history at its best.
EMD's FG9 Locomotive — An article about EMD's FG9 gasifier free-pistion locomotive of 1959, and UP's involvement in the project. (Includes a photo and an illustration of the planned UP unit)
Demonstrators on Union Pacific — A listing of diesel demonstrators that Union Pacific purchased either before their demonstrator runs on other roads, or after; all units were usually sold to Union Pacific at reduced sale prices, with new warranties.
Bunker 'C' — A separate page about Union Pacific's use of heavy-grade residual fuel, known as Bunker 'C', in its steam locomotive, Gas Turbines, and turbocharged GP9s.
News and Annual Highlights Archive — An index page of monthly news reports and annual locomotive roster highlights from 1996-2000.
Union Pacific Locomotive Directories — A page of information about the three previous UP diesel locomotive roster books by Don Strack.
Miscellaneous Notes — Random information concerning Union Pacific's fleet of diesel locomotives.
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