including B39-8 and B40-8W
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B39-8
B40-8
B40-8W
GE Road Switcher B39-8, B40-8 and B40-8W
| B39-8 | B40-8 | B40-8W | |
| Horsepower | 3,900 | 4,000 | 4,000 |
| Wheel Arrangements | B-B | B-B | B-B |
| Production Years | 1984 - 1988 | 1988 - 1989 | 1991 |
| Engine Model | 7FDL16 | 7FDL16 | 7FDL16 |
| Cylinders | 16 | 16 | 16 |
| Number of Units | 145 | 151 | 83 |