SD70AC (4000 HP) 220 units
700-789 (4500-4589) not all units renumbered yet 4701-4830
Notes -700-724 built in 1997 for CSX -724-754 built in 1999 for CSX -755-774 built in 2000 for CSX -775-789 built to CSX specs in 1998 as CR 4130-4144, originally to be numbered CSX 725-739; only CR 4144 was renumbered to 739, later changed to 789 -4701-4730 built in 2003 for CSX -4731-4830 built in 2004 for CSX