EMD SW1504

4 ft 8+1⁄2 in (1,435 mm)Length46 ft 8 in (14.22 m)Loco weight248,000 lb (112,000 kg)Fuel capacity600–1,000 US gal (2,300–3,800 L; 500–830 imp gal)Prime moverEMD 12-645EEngine typeV12 2-stroke dieselAspirationRoots blowerDisplacement9,072 in³ (149 L)CylindersV12Cylinder size9.5 in × 10 in (240 mm × 250 mm)TransmissionMain generator: D32, traction motors: D77/78DCLoco brakeStraight airTrain brakesAir

Performance figures
Power output	1,500 hp (1,119 kW)

Career
Locale	when new: Mexico

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.

References

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.