| Queensland Railways 4D9 class | |
| Powertype: | Steam |
| Builder: | Dübs & Co |
| Serialnumber: | 1414, 1415 |
| Builddate: | 1881 |
| Totalproduction: | 2 |
| Whytetype: | 2-4-2T |
| Fueltype: | Coal |
| Cylindercount: | 2 outside |
| Cylindersize: | 9x |
| Operator: | Queensland Railways |
| Fleetnumbers: | 1, 131 |
| Preservedunits: | 131 |
| Disposition: | 1 preserved, 1 scrapped |
The Queensland Railways 4D9 class locomotive was a class of 2-4-2T steam locomotives operated by the Queensland Railways.
In February 1881, two Dübs & Co two 2-4-2T locomotives entered service on the Bundaberg Railway. Per Queensland Railway's classification system they were designated the 4D9 class, the 4 representing the number of driving wheels, the D that it was a tank locomotive, and the 9 the cylinder diameter in inches.[1]
| Works number | Bundaberg Railway number | Southern & Western Railway number | Queensland Railways number | In service | Notes |
|---|---|---|---|---|---|
| 1414 | 1 | 1 | 1 | February 1881 | Sold July 1895 to Bingarra Sugar Mill |
| 1415 | 2 | 131 | February 1881 | Sold August 1894 to CSR, Childers, resold to Public Works Department, Tasmania for Macquarie Harbour breakwater construction, sold May 1941 to sawmiller R Howard, Zeehan, currently statically displayed by Don River Railway[2] | |