13 units
4285-4287
4290-4291
4293-4295
4297-4299
-Built in 1969 as C&O 3900-3919
-Many paired with SWMT's for yard service. GP39 Mother/Slug match-ups can be found HERE
Retirements
-4281, 4284, 4292, 4296
-4280 & 4289 retired Dec05
-4288 retired Dec06