NP SW1200 Locos:
This page is dedicated to NP's fleet of SW1200 yard switchers. The NP was the original owner of 58 SW1200 units.
NP units:
Original orders:
| Orig. road numbers | model | EMD serial no. | build date | notes |
| NP 119-126 | SW1200 | 20328-20335 | 3/1955 | |
| NP 127-129 | SW1200 | 20320-20322 | 7-8/1955 | |
| NP 130 | SW1200 | 21019 | 1/1956 | |
| NP 131-132 | SW1200 | 21102-21103 | 4/1956 | |
| NP 133-134 | SW1200 | 21100-21101 | 4/1956 | |
| NP 135-141 | SW1200 | 21175-21181 | 6-7/1956 | |
| NP 142-144 | SW1200 | 21433-21435 | 7/1956 | |
| NP 145 | SW1200 | 22089 | 7/1956 | |
| NP 146-150 | SW1200 | 22748-22752 | 2/1957 | |
| NP 151-162 | SW1200 | 22753-22764 | 6-7/1957 | |
| NP 163-177 | SW1200 | 24027-24041 | 12/1957-1/1958 |
SW1200: NP 119 20328 3/1955 to BN 178 to Granite City Steel 1190 NP 120 20329 3/1955 to BN 179 to NUCX 179 NP 121 20330 3/1955 to BN 180 NP 122 20331 3/1955 to BN 181 NP 123 20332 3/1955 to BN 182 to Granite City Steel 1189 to RSS 772:1 to US Navy 65-00634 NP 124 20333 3/1955 to BN 183 to BNSF 3531 NP 125 20334 3/1955 to BN 184 to BNSF 3532 NP 126 20335 3/1955 to BN 185 to CEECO in 12/1986 NP 127 20320 7/1955 to BN 186 to CAGX 186 NP 128 20321 7/1955 to BN 187 to OCCX 187 NP 129 20322 8/1955 to BN 188 NP 130 21019 1/1956 to BN 189 to BNSF 3533 NP 131 21102 4/1956 to BN 190 NP 132 21103 4/1956 to BN 191 NP 133 21100 4/1956 to BN 192 NP 134 21101 4/1956 to BN 193 to BNSF 3535 NP 135 21175 6/1956 to BN 194 to BNSF 3536 NP 136 21176 6/1956 to BN 195 to NUCX 195 NP 137 21177 6/1956 to BN 196 to BNSF 3537 NP 138 21178 6/1956 to BN 197 to NUCX 197 NP 139 21179 7/1956 to BN 198 to NUCX 198 NP 140 21180 7/1956 to BN 199 NP 141 21181 7/1956 to BN 200 NP 142 21433 7/1956 to BN 201 to BNSF 3539 NP 143 21434 7/1956 to BN 202 NP 144 21435 7/1956 to BN 203 to MRL 203 to MRL 14 NP 145 22089 7/1956 to BN 204 NP 146 22748 2/1957 to BN 205 to BNSF 3540 NP 147 22749 2/1957 to BN 206 NP 148 22750 2/1957 to BN 207 to WATX 207 to WAMX 1205 NP 149 22751 2/1957 to BN 208 to MRL 208 NP 150 22752 2/1957 to BN 209 to BNSF 3541? NP 151 22753 6/1957 to BN 210 to BNSF 3541? NP 152 22754 7/1957 to BN 211 to BNSF 3542 NP 153 22755 7/1957 to BN 212 to BNSF 3543 NP 154 22756 7/1957 to BN 213 NP 155 22757 7/1957 to BN 214 to BNSF 3545 NP 156 22758 7/1957 to BN 215 to MRL 215 to MRL 17 NP 157 22759 7/1957 to BN 216 to MRL 216 to MRL 18 NP 158 22760 7/1957 to BN 217 to CEECO NP 159 22761 7/1957 to BN 218 to MRL 218 to MRL 15 NP 160 22762 7/1957 to BN 219 NP 161 22763 7/1957 to BN 220 to MRL 220 to MRL 13 NP 162 22764 7/1957 to BN 221 NP 163 24027 12/1957 to BN 222 to RSSX 222 to ECRX 222 NP 164 24028 12/1957 to BN 223 to NUCX 223 NP 165 24029 12/1957 to BN 224 to BNSF 3546 NP 166 24030 12/1957 to BN 225 to BNSF 3500 NP 167 24031 12/1957 to BN 226 NP 168 24032 12/1957 to BN 227 to Granite City Steel 1192 NP 169 24033 1/1958 to BN 228 to BNSF 3502 NP 170 24034 1/1958 to BN 170 to NUCX 170 NP 171 24035 1/1958 to BN 171 NP 172 24036 1/1958 to BN 172 to BNSF 3526 NP 173 24037 1/1958 to BN 173 to BNSF 3527 NP 174 24038 1/1958 to BN 174 to BNSF 3528 NP 175 24039 1/1958 to BN 175 to CGCX ???? NP 176 24040 1/1958 to BN 176 NP 177 24041 1/1958 to BN 177 to BNSF 3529