| Canadian National |
| MR-18 |
| classes |
|
| Key |
| "-" = complete number range |
| "≠" = incomplete number range |
| MR-18a |
CV / DWP |
3600-3614 |
ALCO |
RS-11 |
1954 |
- |
| MR-18a |
CV |
3609 |
ALCO |
RS-11 |
? |
- |
| MR-18b |
CN |
3615-3670 |
MLW |
RS-18 |
1957 |
- |
| MR-18c |
CN |
3671-3700 |
MLW |
RS-18 |
1958 |
- |
| MR-18d |
CN |
3701-3745 |
MLW |
RS-18 |
1958 |
- |
| MR-18e |
CN |
3100-3129 |
MLW |
RS-18 |
1959 |
- |
| MR-18f |
CN |
3830-3849 |
MLW |
RS-18 |
1959 |
- |
| MR-18g |
CN |
3850-3893 |
MLW |
RS-18 |
1960 |
- |
| MR-18g |
CN |
3151≠3153 |
MLW / CN |
RS-18m |
1968 |
• reclassified from class MRE-18g |
| MRE-18g |
CN |
3150-3155 |
MLW / CN |
RS-18m |
1968 |
• reclassified from class MR-18g
• 3151, 3153 reclassified to class MRE-18g |
 |