| Number | Class | Built Date | Retired | Notes |
|---|---|---|---|---|
| 6600 | GPB-17a | September 1954 | 19 December 1974 | wrecked 28 September 1974 while trialing 6503 and 6609, in headon collision with SD40s 5151 and 5080 near McMurphy BC, mile 34.5 Clearwater Subdivision |
| 6601 | GPB-17a | October 1954 | 25 February 1974 | wrecked 11 October 1973 while travelling between 6512 and 6607 at grade crossing accident at Clover Bar AB (east of Edmonton at mile 259 of the Wainright Subdivision |
| 6602 | GPB-17a | October 1954 | transferred to VIA 31 March 1978 | sold by VIA 20 February 1995 to Wisconsin Central for use on Algoma Central used for parts |
| 6603 | GPB-17a | November 1954 | transferred to VIA 31 March 1978 | |
| 6604 | GPB-17a | November 1954 | transferred to VIA 31 March 1978 | |
| 6605 | GPB-17a | November 1954 | transferred to VIA 31 March 1978 | |
| 6606 | GPB-17a | December 1954 | transferred to VIA 31 March 1978 | |
| 6607 | GPB-17a | December 1954 | transferred to VIA 31 March 1978 | |
| 6608 | GPB-17a | December 1954 | 30 April 1960 | wrecked 13 February 1960 while trialing 6517 in headon collision with GP9 4564 and 4583 near Osawin ON (mile 32.0 of the Caramat Subdivision) |
| 6609 | GPB-17a | December 1954 | retired 31 December 1974 scrapped by CN at Transcona MB | wrecked 28 July 1994 while travelling between 6503 and 6600 in headon collision with SD40 5151 and 5080 near McMurphy BC, mile 34.5 of the Clearwater Subdivision |
| 6610 | GPB-17a | January 1955 | transferred to VIA 31 March 1978 | sold for scrap by VIA 6 October 1993 |
| 6611 | GPB-17a | January 1955 | transferred to VIA 31 March 1978 | sold for scrap by VIA 6 October 1993 |
| 6612 | GPB-17a | January 1955 | transferred to VIA 31 March 1978 | sold by VIA 17 January 1995 to Nebkota Rail, Gordon NE purchased by Canadian Pacific for use on their business train painted in maroon and gray, and numbered CP 1900 |
| 6613 | GPB-17b | February 1955 | transferred to VIA 31 March 1978 | sold by VIA 20 February 1995 to Wisconsin Central for use on Algoma Central renumbered Algoma Central 1761 sold to Pioneer Rail 2003, shipped to Gettysburg Scenic Railroad |
| 6614 | GPB-17c | January 1957 | transferred to VIA 31 March 1978 | sold by VIA 20 February 1995 to Wisconsin Central for use on Algoma Central renumbered Algoma Central 1762 in service |
