| Engine: M123 Engine: M123A1C and others | LeRoi T-H844 V8 Gas 297hp@2600rpm Cummins P1525 V8-300 785 cu in, diesel 300hp@3000rpm |
| Transmission | Constant mesh Mack TRD XT72 5 fwd, 1 rev |
| Transfer case | Mack constant mesh 2 speed (integrated w/transmission) |
| Front Axle | Mack triple reduction |
| Rear Axles | Mack double reduction |
| Differentials | Mack 10:1 |
| Winch | Garwood 45,000 lbs |
| Fuel capacity | 2 tanks, 83 gal each |
| Cruising range | 300-350 miles |
| Maximum speed | 43 mph |
| Weight: M123 Weight: M123A1C | 32,250 lbs 29,100 lbs |
| Length | 289 inches (7.34 m) |
| Width | 114 inches |
| Height: M123 Height: M123A1C | 113 inches 108 inches |
| Towed load rating | 120,000 lbs highway / 80,000 lbs off highway |