Trucks: C-C Flexicoil
Engine: 12-567C, 1,200 hp
Gear ratio: 63:14
Maximum speed: 60 mph
Operating weight (lbs.): 227,000 – 228,000
Tractive effort: 40,000
Length: 55′ – 2 1/2″
| Road no. | Class | Build date | Builder’s no. | Order no. | Retired | Notes / disposition | |
| 909 | GR-12g | Aug 56 | A897 | C-207 | |||
| 910 | GR-12g | Aug 56 | A898 | C-207 | 1988 | To Chile | |
| 911 | GR-12g | Aug 56 | A899 | C-207 | 1988 | To Chile | |
| 912 | GR-12g | Aug 56 | A900 | C-207 | Apr 14 67 | Wrecked | |
| 913 | GR-12g | Aug 56 | A901 | C-207 | May 3 88 | ||
| 914 | GR-12g | Aug 56 | A902 | C-207 | 1991 | To Nitrate Mine, Copilla, Chile | |
| 915 | GR-12g | Aug 56 | A903 | C-207 | 1988 | To Chile | |
| 916 | GR-12g | Aug 56 | A904 | C-207 | 1988 | To Chile | |
| 917 | GR-12g | Aug 56 | A905 | C-207 | 1989 | To scrap 1991 | |
| 918 | GR-12g | 1956 | A906 | C-207 | 1989 | To Nicaragua | |
| 919 | GR-12g | Sep 56 | A907 | C-207 | 1991 | To scrap 1991 | |
| 920 | GR-12g | Sep 56 | A908 | C-207 | Apr 14 67 | Wrecked | |
| 921 | GR-12g | Sep 56 | A909 | C-207 | 1988 | To Chile | |
| 922 | GR-12g | Sep 56 | A910 | C-207 | 1989 | To Nicaragua | |
| 923 | GR-12g | Sep 56 | A911 | C-207 | |||
| 924 | GR-12g | Sep 56 | A912 | C-207 | 1990 | To display Bishop Falls NL | |
| 925 | GR-12g | Sep 56 | A913 | C-207 | 1989 | To display Avondale NL | |
| 926 | GR-12g | Oct 56 | A914 | C-207 | 1988 | To Chile | |
| 927 | GR-12g | Oct 56 | A915 | C-207 | 1990 | To Nigeria No. 1161 | |
| 928 | GR-12g | Oct 56 | A916 | C-207 | 1989 | To Nicaragua | |
| 929 | GR-12g | Oct 56 | A917 | C-207 | 1988 | To Chile | |
| 930 | GR-12g | Oct 56 | A918 | C-207 | 1991 | To scrap | |
| 931 | GR-12g | Oct 56 | A919 | C-207 | 1990 | To display Corner Brook NL | |
| 932 | GR-12g | Oct 56 | A920 | C-207 | 1992 | To display Bonavista NL | |
| 933 | GR-12g | Oct 56 | A921 | C-207 | To Chile | ||
| 934 | GR-12g | Oct 56 | A922 | C-207 | 1992 | To display Port aux Basques NL | |
| 935 | GR-12p | Mar 58 | A1450 | C-246 | 1991 | To scrap | |
| 936 | GR-12p | Mar 58 | A1451 | C-246 | 1988 | To Chile | |
| 937 | GR-12p | Mar 58 | A1452 | C-246 | 1991 | To Nitrate Mine, Tocopilla, Chile | |
| 938 | GR-12x | Jan 60 | A1834 | C-271 | 1989 | To Nicaragua | |
| 939 | GR-12x | Jan 60 | A1835 | C-271 | 1989 | To Nicaragua | |
| 940 | GR-12x | Jan 60 | A1836 | C-271 | 1989 | To display Whitbourne NL | |
| 941 | GR-12x | Jan 60 | A1837 | C-271 | 1989 | To Nicaragua | |
| 942 | GR-12x | Jan 60 | A1838 | C-271 | 1989 | To Nicaragua | |
| 943 | GR-12x | Jan 60 | A1839 | C-271 | 1990 | To Nigeria No. 1162 | |
| 944 | GR-12x | Jan 60 | A1840 | C-271 | 1988 | To Chile | |
| 945 | GR-12x | Jan 60 | A1841 | C-271 | 1988 | To Chile | |
| 946 | GR-12x | Jan 60 | A1842 | C-271 | 1989 | To Nicaragua |