Trucks: B-B, cast frame
Engine: 12-244, 1,600 hp
Gear ratio: 65:18
Maximum speed: 75 mph
Operating weight (lbs.): 245,000
Tractive effort (lbs.): 46,000
Length: 56′ – 11 3/4″
| Road no. | Class | Build date | Builder’s no. | Renumbered to | Date | Second renumbering | Date |
| 1863 | MR-16e | Sep 55 | 81183 | 3043 | 1956 | 3800 | 1957 |
| 1864 | MR-16e | Sep 55 | 81184 | 3044 | 1956 | 3801 | 1957 |
| 1865 | MR-16e | Sep 55 | 81207 | 3045 | 1956 | 3802 | 1957 |
| 1866 | MR-16e | Sep 55 | 81208 | 3046 | 1956 | 3803 | 1957 |
| 1867 | MR-16e | Sep 55 | 81209 | 3047 | 1956 | 3804 | 1957 |
| 1868 | MR-16e | 1955 | 81210 | 3048 | 1956 | 3805 | 1957 |
| 1869 | MR-16e | Oct 55 | 81211 | 3049 | 1956 | 3806 | 1957 |
| 1870 | MR-16f | Oct 55 | 81212 | 3050 | 1956 | 3807 | 1957 |
| 1871 | MR-16f | Nov 55 | 81213 | 3051 | 1956 | 3808 | 1957 |
| 1872 | MR-16f | Nov 55 | 81214 | 3052 | 1956 | 3809 | 1957 |
| 1873 | MR-16f | Nov 55 | 81215 | 3053 | 1956 | 3810 | 1957 |
| 1874 | MR-16f | Nov 55 | 81216 | 3054 | 1956 | 3811 | 1957 |
| 1875 | MR-16f | Nov 55 | 81478 | 3055 | 1956 | 3812 | 1957 |
| 1876 | MR-16f | 1955 | 81479 | 3056 | 1956 | 3813 | 1957 |
| 1877 | MR-16f | Dec 55 | 81480 | 3057 | 1956 | 3814 | 1957 |
| 1878 | MR-18g | Jul 55 | 81175 | 3058 | 1956 | ||
| 1879 | MR-18g | Jul 55 | 81176 | 3059 | 1956 | ||
| 1880 | MR-18g | Jul 55 | 81177 | 3060 | 1956 | ||
| 1881 | MR-18g | Jul 55 | 81179 | 3061 | 1956 | ||
| 1882 | MR-18g | Aug 55 | 81180 | 3062 | 1956 | ||
| 1883 | MR-18g | Aug 55 | 81181 | 3063 | 1956 | ||
| 1884 | MR-18g | Aug 55 | 81182 | 3064 | 1956 | ||
| 1885 | MR-18g | Aug 55 | 81183 | 3065 | 1956 |