Conrail inherited their fleet of SW1500s from Penn Central, Reading Company, and Indianapolis Union.

Comprehensive SW1500 Roster

The roster below is comprehensive for Conrail's SW1500 between their inclusion into Conrail in 1976 and the last unit's retirement in the 1990's and contains all predecessor units of the locomotive class that Conrail inherited. If numbers are missing from the roster, Conrail intentionally left them open. It does not contain retirement dates and dispositions due to their complex nature.

CR Series   Former          Built
=================================
9500-9509    PC 9500-9509    1971
9510-9559    PC 9510-9559    1972
9560-9583    PC 9560-9583    1973
9584-9588    PC 9584-9588    1970
9589-9599   RDG 2750-2760    1966
9600-9610    IU 22-32        1973
9611-9620   RDG 2761-2770    1969