NPBL SW1200:
This page is dedicated to NPBL's fleet of SW1200 units.
Original orders:
| Orig. road numbers | model | EMD serial no. | build date | notes |
| NPBL 101-105 | SW1200 | 21021-21025 | 12/1955-1/1956 | |
| NPBL 106-115 | SW1200 | 21056-21065 | 3/1956 & 6/1956 |
SW1200: NPBL 101 21021 12/1955 to Morton Salt 101 (at Weeks Island, LA) NPBL 102 21022 1/1956 to CRGX 3 NPBL 103 21023 1/1956 to Respondek 103 NPBL 104 21024 1/1956 to NS 1230 to Jefferson Smurfit 1230 to WAMX 929 NPBL 105 21025 1/1956 to NS 1231 to Countrymark 1231 to ADMX 1231 NPBL 106 21056 3/1956 to USSX 106 to NREX 106 NPBL 107 21057 3/1956 to Wilson in 11/1988 NPBL 108 21058 3/1956 to USSX 108 NPBL 109 21059 3/1956 to Wilson in 11/1988 NPBL 110 21060 3/1956 to ILSX in 11/1988 NPBL 111 21061 3/1956 to CRGX 111 NPBL 112 21062 3/1956 to USSX 112 NPBL 113 21063 3/1956 to USSX 113 NPBL 114 21064 3/1956 to Gulf States Steel 922 to EV 922 to OHCR 922 NPBL 115 21065 6/1956 to USSX 115