Specifications [ EMD SD70 ]
Electro-Motive Diesel - USA
1992 - Ongoing
1 x EMD 16-710-G3 2-stroke 16-cylinder diesel engine OR EMD 12-1010J 4-stroke 12-cylinder diesel engine (SD70ACe-T4).
Engine / Drive Source
Rated Output Power
(Loco Facing Left)
SD70 - Base Series Designation; original series model form; 'spartan cab' styling.
SD70M - 'Comfort Cab' introduction; revised nose assembly for crew comfort; 710G3B engine; D90TR DC traction motor; flared radiators.
SD70I - Rubber gasket isolated cab construction for cabin noise reduction.
SD70MAC - Model of 1993; EMD 710 engines of 4,000 horsepower; three-phase traction motors; total production reached 1,109 into 2004.
SD70ACe - Replacement for EPA-unfriendly SD70MAC variant; EMD 16-710-G3C-T2 engines of 4,300 horsepower (up to 4,500 horsepower).
SD70ACe/LCi - Australian mining market locos reclaimed for stateside use.
SD70ACS - Export market models.
SD70ACe-BB - Brazil market models.
SD70ACe/45 - Brazil market models.
SD70IAC - SD70ACe and SD70IAC locos for Norfolk Southern.
SD70ACU - Canadian Pacific SD9043MAC locos rebuilt for Canadian Pacific; Union Pacific/CIT SD90MAC locos rebuilt for Norfolk Southern.
SD70ACC - Rebuilt Norfolk Southern SD70 locos for Norfolk Southern.
SD70MACH - Entry of 2022; SD70MAC locos rebuilt by Progress Rail Services for Chicago-based Metra services.
SD70AC - Wide gauge (1,600mm).