EMD SD45X

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EMD SD45X

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Power type	Diesel-electric
Builder	General Motors Electro-Motive Division (EMD)
Model	SD45X
Build date	June 1970 – February 1971
Total production	7
AAR wheel arr.	C-C
UIC classification	Co'Co'
Gauge	4 ft 8½ in (1,435 mm)
Prime mover	EMD 645E3A
Cylinders	20
Power output	4,200 hp (3,130 kW)
Locomotive brakes	Straight air
Train brakes	26-L air
Locale	United States
WikiProject Trains {{Infobox Locomotive Auto}}

An EMD SD45X is a 6-axle experimental diesel locomotive built by General Motors Electro-Motive Division between June 1970 and February 1971. Power was provided by an EMD 645E3A 20-cylinder engine which generated 4,200 horsepower (3,130 kW). 7 examples of this locomotive model were built for American railroads. 6 of these units would end up in service with Southern Pacific Railroad. One was rebuilt in 1980 by Morrison-Knudsen into an SD45Xm with a long hood from a scrapped DD35.

Original owners

Qty.	Railroad	Road Numbers	Date	Builders #s	Notes
1	EMD	4201	6/70	36806	(1)
2	EMD	4202, 4203	2/71	36807, 36808	(2)
1	EMD	5740	6/70	36809	(1)
1	Southern Pacific	9500	8/70	35741
2	Southern Pacific	9501, 9502	9/70	35742, 35743
(1) EMD demo, to SP 9503, 12/72 (2) EMD demo, to SP 9504-9505, 12/72

[edit] References

• Pinkepank, Jerry A. (1973). The Second Diesel Spotter's Guide. Milwaukee, WI: Kalmbach Publishing Co.. ISBN 0-89024-026-4. 
• Sarberenyi, Robert. EMD SD45X Original Owners. Retrieved on August 27, 2006

v • d • e 6- and 8-axle diesel-electric locomotives built by GM-EMD Six-axle road power SD7 · SD9 · SD18 · SD24 · SD28 · SD35 · SDP35 · SD38 · SD38AC · SD38-2 · SD39 · SDL39 · SD40 · SD40X · SD40A · SD40-2 · SD40-2W · SD40T-2 · SD40-2S · SDP40 · SD45 · SD45X · SD45-2 · SD45T-2 · SDP45 · SD50 · SD60 · SD70 · SD70I · SD70M · SD70MAC · SD70M-2 · SD70ACe · SD75M · SD75I · SD80MAC · SD89MAC · SD90MAC Eight-axle road power DD35 · DD35A · DDA40X · DDM45 See also: List of GM-EMD locomotives