SP DH643 page: Renumberings
Renumberings:
These unique diesel-hydraulic roadswitchers were renumbered a few times over their breif service lives.
SP 9018-9020:
| Original number | 1965 number | 1969 number |
| SP 9018 | SP 9150 | SP 9800 |
| SP 9019 | SP 9151 | SP 9801 |
| SP 9020 | SP 9152 | SP 9802 |