Conrail inherited 24 U33C's from Penn Central and 15 U33C's from the Erie Lackawanna. Conrail originally assigned them to series CR 6540-6578. To make room for the newly arriving C30-7A's in the early 1980's, Conrail renumbered the surviving U33C's into series CR 6845-6883, which had originally been occupied by RSD12's.

Comprehensive U33C Roster

The roster below is comprehensive for Conrail's U33C when they arrived from Conrail's predecessors on April 1, 1976 until their last day of service on Conrail. The roster includes each unit's first disposition when known.

                                   Builder's     
CR #   Former    Prior     Built   Number     Removed    Disposition
====================================================================
6845   CR 6540   PC 6540   04/68   36670      ??/??/??   D&H 650
6846   CR 6541   PC 6541   02/68   36671      ??/??/??
6847   CR 6542   PC 6542   02/68   36672      ??/??/??
----   CR 6543   PC 6543   02/68   36673      ??/??/??
6849   CR 6544   PC 6544   02/68   36674      ??/??/??
6850   CR 6545   PC 6545   02/68   36675      ??/??/??
6851   CR 6546   PC 6546   02/68   36676      ??/??/??
6852   CR 6547   PC 6547   03/68   36677      ??/??/??
6853   CR 6548   PC 6548   04/68   36678      ??/??/??
6854   CR 6549   PC 6549   03/68   36679      ??/??/??
6855   CR 6550   PC 6550   04/68   36680      ??/??/??
6856   CR 6551   PC 6551   04/68   36681      ??/??/??   D&H 651
6857   CR 6552   PC 6552   04/68   36682      ??/??/??
6858   CR 6553   PC 6553   04/68   36683      ??/??/??
6859   CR 6554   PC 6554   04/68   36684      ??/??/??
6860   CR 6555   PC 6555   04/68   36685      ??/??/??   D&H 652
6861   CR 6556   PC 6556   04/68   36686      ??/??/??
6862   CR 6557   PC 6557   04/68   36687      ??/??/??   D&H 653
----   CR 6558   PC 6558   04/68   36688      ??/??/??
6864   CR 6559   PC 6559   04/68   36689      ??/??/??   D&H 654
6865   CR 6560   PC 6560   08/68   36864      ??/??/??
6866   CR 6561   PC 6561   06/68   36865      ??/??/??   D&H 656
6867   CR 6562   PC 6562   06/68   36866      ??/??/??
6868   CR 6563   PC 6563   06/68   36867      ??/??/??
6869   CR 6564   EL 3301   07/68   36785      ??/??/??   D&H 751
6870   CR 6565   EL 3302   07/68   36786      ??/??/??   D&H 752
6871   CR 6566   EL 3303   07/68   36787      ??/??/??   D&H 753
6872   CR 6567   EL 3304   07/68   36788      ??/??/??
6873   CR 6568   EL 3305   07/68   36789      ??/??/??
6874   CR 6569   EL 3306   07/68   36790      ??/??/??
6875   CR 6570   EL 3307   08/69   37054      ??/??/??
----   CR 6571   EL 3308   08/69   37055      ??/??/??
----   CR 6572   EL 3309   08/69   37056      ??/??/??
6878   CR 6573   EL 3310   08/69   37057      ??/??/??
6879   CR 6574   EL 3311   08/69   37058      ??/??/??
----   CR 6575   EL 3312   08/69   37059      ??/??/??
6881   CR 6576   EL 3313   09/69   37060      ??/??/??
6882   CR 6577   EL 3314   09/69   37061      ??/??/??
6883   CR 6578   EL 3315   09/69   37062      ??/??/??