Photo by Dave Krumenacker © copyright
| Model | DD40X |
| Year | 1969 |
| Engine | 2 x EMD 16-645E3 (2 stroke) |
| Horsepower | 6600 |
| Starting Tractive Effort | 136,000lbs |
| Continuous Tractive Effort | 19,800lbs @ 90 mph |
| Max. Speed | 90 m.p.h |
| Fuel Capacity | 8200 gallons |
| Driving Wheel Diameter | 40" |
| Length | 98'5" over couplers |
| Weight | 545,432 lbs |
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