F7A
Conrail inherited their 110 F7A's from Penn Central (former Pennsylvania Railroad, New York Central, and Denver & Rio Grande Western units) and Erie Lackawanna (former Lackawanna and Erie units).
F7B
Conrail inherited their fleet of F7B's from the Penn Central and Erie Lackawanna.
FP7
Conrail inherited 18 FP7's from the Penn Central (former PRR) and 3 from the Reading Company. The RDG units (900-903) were in commuter service between Reading and Philadelphia, PA, and eventually were transferred to SEPTA.
FL9
Conrail inherited their FL9 passenger locomotives from Penn Central, which inherited them from the New Haven. Eventually, the units were either scrapped or transferred to MTA.
E7A
Conrail inherited their fleet of E7A's from the Penn Central and Erie Lackawanna.
E8A
Conrail inherited their 53 E8A freight locomotives from Penn Central (former PRR and NYC units) and Erie Lackawanna (former DL&W and Erie units). All were retired by January 1978, but 10 were spared. The E8A locomotives assigned to OCS Business Train duty are also included.