EMD SD45X

The EMD SD45X is an experimental 6-axle diesel-electric locomotive that was built General Motors Electro-Motive Division mostly for the Southern Pacific Railroad with a total of seven examples built between June 1970 and February 1971.
== History ==
Between June 1970 and February 1971, the Electro-Motive Division had built a total of seven units of what had became the EMD SD45X.
As of today, none of the EMD SD45X units are in preservation.
== Stock list ==
Photograph	Railroad 	Quantity	Unit 	Build date 	Serial No. 	Status 	Notes
 	Electro-Motive Division 	1 	4201 	June 1970 	36806 	Scrapped	EMD demonstrator unit, delivered to Southern Pacific and numbered as 9503
 	Electro-Motive Division 	2 	4202, 4203	February 1971 	36807, 36808	Scrapped	EMD demonstrator unit, delivered to Southern Pacific and numbered as 9504 and 9505
Frameless 	Electro-Motive Division 	1 	5740 	June 1970 	34123 	Scrapped	Scrapped in 2001
 	Southern Pacific Railroad	1 	9500 	August 1970 	35741 	Scrapped	
150x150px 	Southern Pacific Railroad	2 	9501, 9502	September 1970	35742, 35743	Scrapped (9501)
Scrapped (9502)	
Category:Six-axled diesel locomotives
Category:Built in 1970
Category:EMD SD45X
Category:Diesel locomotives
Category:EMD locomotives
Category:American diesel locomotives
Category:Built in 1971
Category:4 foot 8 1⁄2 inch gauge
Category:American locomotives
Category:C-C locomotives
Category:Standard gauge locomotives
Category:United States
Category:Experimental locomotives
Category:Scrapped locomotives
Category:Southern Pacific locomotives
Category:Standard gauge locomotives of the United States
Category:Southern Pacific Class EF642-1
Category:Southern Pacific Class EF642-2
Category:Diesel-electric locomotives
Category:Scrapped diesel locomotives