The EMD SW1504 is a 1,500 hp (1,119 kW) diesel-electric switcher locomotive built by General Motors' Electro-Motive Division. The type was sold only to Mexico's national railroad, Ferrocarriles Nacionales de México; 60 examples were built between May and August 1973. With the breakup of NdeM, the locomotives have been passed to the variety of successor railroad operators in Mexico; some have been sold to leasing companies in the USA.

This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (July 2023)

Quick Facts Type and origin, Power type ...

EMD SW1504
HLCX 1525
Type and origin Power type Diesel Builder General Motors Electro-Motive Division (EMD) Model SW1504 Build date 1973 May–August 1973 Total produced 60
Specifications Configuration: ​  • AAR B-B Gauge 4 ft 8+1⁄2 in (1,435 mm) Length 46 ft 8 in (14.22 m) Loco weight 248,000 lb (112,000 kg) Fuel capacity 600–1,000 US gal (2,300–3,800 L; 500–830 imp gal) Prime mover EMD 12-645E Engine type V12 2-stroke diesel Aspiration Roots blower Displacement 9,072 in3 (149 L) Cylinders V12 Cylinder size 9.5 in × 10 in (240 mm × 250 mm) Transmission Main generator: D32, traction motors: D77/78DC Loco brake Straight air Train brakes Air
Performance figures Power output 1,500 hp (1,119 kW)
Career Locale when new: Mexico

Close

• List of GM-EMD locomotives

• Laundry, Mark. The Yard Limit: EMD SW1504. Retrieved on March 23, 2005.
• Marre, Louis A. & Pinkepank, Jerry A. (1989). The Contemporary Diesel Spotter's Guide. Waukesha, WI: Kalmbach Books. ISBN 0-89024-088-4. LCCN 88083625. OCLC 19959644.
• Trainweb.org. The Unofficial EMD Homepage. Retrieved on March 23, 2005.
• McCall, S.A. EMD Switcher Dimensional Data. Retrieved on March 23, 2005.

• Media related to EMD SW1504 locomotives at Wikimedia Commons
• EMD SW1504 photos at rrpicturearchives.net