Editing EMD SD40-2 (section)

== Preservation ==
Union Pacific donated SD40-2 9950 to [[Western America Railroad Museum]] in [[Barstow, California]] in 2004. 9950 was built in 1980 for the [[Missouri Pacific Railroad|Missouri Pacific]] as their 3320.{{citation needed|date=November 2019}}

In June 2009, Union Pacific had donated 3028 (former [[Chicago and North Western Railway|Chicago & North Western]] 6847) to the [[Illinois Railway Museum]] in Union, Illinois. The unit still wears its original factory paint from when it was built for the CNW in March, 1974. CNW 6847 was patched by UP in February, 2003, to UP 3028, and retired in December, 2008.<ref>{{Cite web|url=http://www2.irm.org/blogs/index.php?/archives/361-IRM-acquires-an-EMD-SD40-2.html|title=IRM acquires an EMD SD40-2|work=Illinois Railway Museum|access-date=June 22, 2009}}</ref>

In 2014, Union Pacific traded SD40-2C 3105 and other equipment to the [[RailGiants Train Museum]] at [[Fairplex]] in Pomona, California for [[4-8-8-4]] [[Union Pacific 4014]] "Big Boy", which UP restored to operational status in 2019. Locomotive 3105 was originally built in 1979 as [[Missouri Pacific]] 6027, and one of the few that the Missouri Pacific ordered with dynamic braking.<ref>{{Cite web |date=10 January 2014 |title=After 52 Years, No. 4014 Poised to Return to Rails |url=http://www.up.com/newsinfo/community_ties/2014/january/0110_doerr-interview.shtml |url-status=dead |archive-url=https://web.archive.org/web/20140115125950/http://www.up.com/newsinfo/community_ties/2014/january/0110_doerr-interview.shtml |archive-date=15 January 2014 |access-date=January 10, 2014 |work=Union Pacific}}</ref> This is the only operational locomotive in the museum.

In the Fall of 2018, Canadian Pacific donated SD40-2 5903 to the [[Canadian Railway Museum]] in Delson, Quebec, making it the first SD40-2 to be preserved in Canada. {{citation needed|date=January 2022}}

In June 2020, [[Norfolk Southern Corporation|Norfolk Southern]] donated SD40-2 6162 to the Kentucky Steam Heritage Corp. 6162 was originally built for the [[Norfolk and Western Railway|Norfolk and Western]] in 1978 as N&W 6162.<ref>{{Cite web |date=18 June 2020 |title=Kentucky Steam Acquires Norfolk Southern SD40-2 Locomotive |url=https://www.kentuckysteam.org/post/kentucky-steam-acquires-norfolk-southern-sd40-2-locomotive |url-status=live |archive-url=https://web.archive.org/web/20230922124045/https://www.kentuckysteam.org/post/kentucky-steam-acquires-norfolk-southern-sd40-2-locomotive |archive-date=22 September 2023 |access-date=June 19, 2020 |work=Kentucky Steam Heritage Corp}}</ref>

In 2022, Dieselmotive of California saved Milwaukee Road SD40-2 156 from scrap and had it moved to the [[Oklahoma Railway Museum]]. Built as Milwaukee Road 3026 in 1972, the locomotive was one of 90 SD40-2s on the MILW roster, outnumbering all other diesel models. Later renumbered as MILW 156, it was painted as Milwaukee Road's Bicentennial unit in 1975 for the two-year celebration that began the following year. It wore that paint job for just a few years before being repainted back into MILW orange and black. It ended up in New England in the 2010s. The museum plans to restore the locomotive back into its Bicentennial paint scheme, as well as make it fully operational again.<ref>{{cite web |last=Berger |first=Eric |date=4 April 2023 |title=Milwaukee Road Bicentennial SD40-2 Saved in Oklahoma |url=https://railfan.com/milwaukee-road-bicentennial-sd40-2-saved-in-oklahoma/ |url-status=live |archive-url=https://web.archive.org/web/20230405160012/https://railfan.com/milwaukee-road-bicentennial-sd40-2-saved-in-oklahoma/ |archive-date=5 April 2023 |website=[[Railfan & Railroad|Railfan & Railroad Magazine]]}}</ref>