Article · Wikipedia archive · Last revised Jul 10, 2026

EMD SW1504

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.

Last revised
Jul 10, 2026
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EMD SW1504
HLCX 1525
Type and origin
Power typeDiesel
BuilderGeneral Motors Electro-Motive Division (EMD)
ModelSW1504
Build dateMay 1973 – August 1973
Total produced60
Specifications
Configuration:
​
 • AARB-B
Gauge4 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 12-645E
Engine typeV12 2-stroke diesel
AspirationRoots blower
Displacement9,072 in3 (149 L)
CylindersV12
Cylinder size9.5 in × 10 in (240 mm × 250 mm)
TransmissionMain generator: D32, traction motors: D77/78DC
Loco brakeStraight air
Train brakesAir
Performance figures
Power output1,500 hp (1,119 kW)
Career
Localewhen 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.

Original buyers

Railroad Quantity Road numbers Notes
Nacionales de México 60 8800–8859
Total 60
See also

See also

References

References

External links