| Number | Class | Built Date | Renumbered | Retired | Notes |
|---|---|---|---|---|---|
| 4500 | GR-17g | 1956 | to GP9 4204 in 1957 | fitted with Blomberg trucks and renumbered back from GP9 7260 in 1990 | |
| 4501 | GR-17g | 1956 | to GP9 4205 in 1957 | fitted with Blomberg trucks and renumbered back from GP9 7012 in 1985 | |
| 4502 | GR-17h | 1956 | rebuilt to GP9RM 7078 in 1993 | ||
| 4503 | GR-17h | 1956 | rebuilt to GP9RM 4023 in 1984 | ||
| 4504 | GR-17h | 1956 | rebuilt to GP9RM 7212 in 1985 | ||
| 4505 | GR-17h | 1956 | rebuilt to slug 241 in 1988 | ||
| 4506 | GR-17h | 1956 | rebuilt to GP9RM 7081 in 1993 | ||
| 4507 | GR-17h | 1956 | rebuilt to GP9RM 7204 in 1985 | ||
| 4508 | GR-17h | 1956 | rebuilt to GP9RM 4024 in 1984 | ||
| 4509 | GR-17h | 1956 | rebuilt to GP9RM 4031 in 1984 | ||
| 4510 | GR-17h | 1956 | specially equipped for snowplow serviceand then rebuilt to GP9RM 7056 in 1992 | ||
| 4511 | GR-17h | 1956 | specially equipped for snowplow serviceand then rebuilt to GP9RM 7205 in 1985 | ||
| 4512 | GR-17h | 1956 | specially equipped for snowplow service rebuilt to GP9RM 7208 in 1985 | ||
| 4513 | GR-17h | 1956 | 10 December 1984 | specially equipped for snowplow servicewrecked 4 May 1984 on the Dundas Subdivision near Dundas, ON. in a rear end collision | |
| 4514 | GR-17h | 1956 | specially equipped for snow plow serviceand then rebuilt to GP9RM 7213 in 1986 | ||
| 4515 | GR-17h | 1956 | rebuilt to GP9RM 7200 in 1985 | ||
| 4516 | GR-17h | 1956 | rebuilt to GP9RM 7222 in 1986 | ||
| 4517 | GR-17h | 1956 | rebuilt to GP9RM 4032 in 1984 | ||
| 4518 | GR-17h | 1956 | rebuilt to GP9RM 7226 in 1986 | ||
| 4519 | GR-17h | 1956 | rebuilt to GP9RM 7006 in 1985 | ||
| 4520 | GR-17h | 1956 | rebuilt to slug 278:2 in 1993 | ||
| 4521 | GR-17h | 1956 | rebuilt to GP9RM 7007 in 1985 | ||
| 4522 | GR-17h | 1956 | rebuilt to GP9RM 7008 in 1985 | ||
| 4523 | GR-17h | 1956 | in an accident and rebuilt without dynamic brakes rebuilt to slug 263:2 in 1990 | ||
| 4524 | GR-17h | 1956 | in an accident and rebuilt without the dynamic brake blister rebuilt to GP9RM 7028 in 1991 | ||
| 4525 | GR-17h | 1956 | rebuilt to GP9RM 7223 in 1986 | ||
| 4526 | GR-17h | 1956 | rebuilt to GP9RM 4028 in 1984 | ||
| 1956 | |||||
| 4527 | GR-17h | 1956 | rebuilt to GP9RM 4030 in 1984 | ||
| 4528 | GR-17h | 1956 | rebuilt to GP9RM 4135 in 1991 | ||
| 4529 | GR-17h | 1956 | rebuilt to slug 256 in 1990 | ||
| 4530 | GR-17h | 1956 | specially equipped for snowplow servicere built to GP9RM 4124:2 in 1990 | ||
| 4531 | GR-17h | 1957 | 15 June 1964 | wrecked 19 October 1963 at mile 4.3 of the Oakville Subdivision, near Sunnyside, ON. Along with 4453 it had a head on collision with 3725 and 4457 | |
| 4532 | GR-17h | 1957 | rebuilt to GP9RM 7045 in 1992 | ||
| 4533 | GR-17h | 1957 | rebuilt to GP9RM 7032 in 1991 | ||
| 4534 | GR-17h | 1957 | rebuilt to GP9RM 7047 in 1992 | ||
| 4535 | GR-17h | 1957 | rebuilt to GP9RM 7009 in 1985 | ||
| 4536 | GR-17h | 1957 | When it was painted in zebra stripes it had the stripes going the wrong way Rebuilt to GP9RM 7053 in 1992 | ||
| 4537 | GR-17h | 1957 | rebuilt to GP9RM 7071 in 1992 | ||
| 4538 | GR-17h | 1957 | 31 October 1957 | wrecked 25 August 57 on the Redditt Subdivision near White, ON in a head on collision with 1621 |
