471 units
2422-2442
8000-8100
8102-8108
8110-8153
8155-8162
8181
8184
8189
8194
8196
8198-8261
8302
8305
8312
8315
8317-8321
8324
8328
8331
8334-8338
8340
8342-8343
8349-8352
8354
8356-8357
8360-8362
8364-8365
8367-8370
8373
8376
8380
8383
8386-8388
8392
8394-8395
8400
8404-8410
8413-8415
8418-8421
8423-8427
8429-8432
8435-8437
8439-8488
8800-8876
8878-8889
8973-8974
--2411-2445 are used for yard service, renumbered from upper 8100-series. Click here for more details . 2443, 2445 downgraded to SD382S.
--8101 wrecked, 2004
--8109 wrecked, 2003
--8304 wrecked, 1996
--8877 wrecked, 2005
--8154 wrecked and rebuilt as 8245. The 8245 slot was previously open; it would've been former B&O SD40-2 7603, which was wrecked and retired before coming to CSX.
--Units in the 8163-8197 block of missing engines were renumbered to the 2400 series
--8800-8889 former CONRAIL
Rebuilds
--8302-8437 rebuilt from SD40s in 8300-8438 block. These 74 (75 minus 1 wrecked/retired) SD40s had the worst mechanical records and were rebuilt to SD40-2 specs. CSX traded the rest in, saving only a few straight SD40s, now in the 4600 series., which means 42 SD40's were sent packing
--8439-8488 rebuilt by Boise Locomotive in 1990 from former UP/SP/CR/CNW SD40 and SD45s
--8869-8885 rebuilt from SD40s by CR in 1993.
--8886 and 8889 are SD40-2s but have SD45-2 carbodies
--2443, 2445 downgraded to SD382S
--8973 and 8974 downgraded from SD45-2