Union Pacific No. 3918 (1937)

Union Pacific No. 3818 was a 4-6-6-4 Challenger steam locomotive that was built for the Union Pacific.
Category:Union Pacific locomotives
Category:Articulated locomotives
Category:ALCO locomotives
Category:Tender locomotives
Category:Locomotives
Category:American locomotives
Category:4-6-6-4 locomotives
Category:4-6-6-4 steam locomotives
Category:Six-coupled locomotives
Category:Built in 1936
Category:Scrapped locomotives
Category:United States
Category:Standard gauge locomotives
Category:4 foot 8 1⁄2 inch gauge
Category:Scrapped steam locomotives
Category:Standard gauge locomotives of the United States
Category:Fetter Locomotives