Added to CN roster when London & Port Stanley Railway was acquired in Jan 66.
1,200 horsepower
B-B trucks
Weight – 162,000 lbs.
Tractive effort – 28,000 lbs.
| Road no. | Class | Build date | Builder’s no. | Previous road no. | Retired | Notes / disposition |
| 991 | GR-12za | Sep 55 | A-831 | London & Port Stanley L-4 | 1976 | Shipped to Newfoundland in 1978 as a parts source, scrapped |
| 992 | GR-12za | Jul 57 | A-1324 | London & Port Stanley L-5 | 1976 | Shipped to Newfoundland in 1978 as a parts source, scrapped |