Conrail inherited their fleet of 145 SW1's from Penn Central, Jersey Central, Reading Company, and Lehigh Valley. Conrail assigned them to the series CR 8400-8599.
Conrail inherited their fleet of 128 1,200hp SW7's from Penn Central, Erie Lackawanna, Jersey Central, and Lehigh Valley. They assigned them to series CR 8836-9150.
Conrail's fleet of SW8's were placed in series CR 8600-8627, CR 8689-8700. The SW8M's came only from the LV and were placed in series CR 8664-8688.
Conrail's SW9 fleet came from Penn Central, Lehigh Valley, Jersey Central, and Erie Lackawanna. They were in series CR 8911-9026 and shared series CR 9042-9141 with SW7's.
Penn Central and Raritan River provided SW900's, along with SW900M's fron Reading Company and Lehigh Valley. The SW900's were in series CR 8628-8663 and CR 8701-8721.
The Reading Company and then Conrail were the only Class 1 railroads to own the 1,000hp SW1001, assigning them to CR 9400-9424.
Reading Company, Penn Central, and Erie Lackawanna contributed 68 1,200hp SW1200's in 1976, assigning them CR 9315-9382. Conrail retired them by the early 1990's.
In 1959 EMD began rebuilding the Reading Company's aging fleet of Baldwin VO1000's into improved SW1200M's. 19 units were completed and passed onto Conrail, assigning them CR 9301-9314.
Conrail inherited their fleet of 121 1,500hp SW1500's from Penn Central, Reading Company, and Indiana Union Railway. They were in series CR 9500-9620.
Conrail inherited their quickly-retired fleet of NW2's from Penn Central, Erie Lackawanna, Jersey Central, Lehigh Valley, and Detroit Terminal. Series CR 9151-9194, 9200-9296.
In 1974, the Reading Company began leasing 10 MP15DC's (CR 9621-30) from EMD. Though the locos were reliable, Conrail returned them to EMD at the end of the lease.