| WAGR K class | 
|---|
|  | 
| | Type and origin | 
|---|
 | Power type | Steam | 
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 | Builder | Neilson & Co | 
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 | Serial number | 4599-4606, 5040-5045, 5197-5206 | 
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 | Total produced | 24 | 
|---|
 | 
| | Specifications | 
|---|
 | Configuration: 
 |  | 
|---|
 | • Whyte | 2-8-4T | 
|---|
 | Gauge | 3 ft 6 in (1,067 mm) | 
|---|
 | Fuel type | Coal | 
|---|
 | Fuel capacity | 2.75 long tons 0 cwt (6,200 lb or 2.8 t) | 
|---|
 | Water cap. | 2,000 imp gal (9,100 L; 2,400 US gal) | 
|---|
 | Boiler pressure | As built: 120 lbf/in2 (0.83 MPa) Reboilered: 160 lbf/in2 (1.10 MPa)
 | 
|---|
 | Heating surface: |  | 
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 | • Firebox | 16.7 sq ft (1.55 m2) | 
|---|
 | Cylinder size | 17 in × 21 in (432 mm × 533 mm) | 
|---|
 | 
| | Performance figures | 
|---|
 | Power output | As built: 15,332 lbf (68.20 kN) Reboilered: 20,443 lbf (90.93 kN)
 | 
|---|
 | Factor of adh. | 3.8 | 
|---|
 | 
|  | 
The K-class was a class of 2-8-4T steam locomotives of the Western Australian Government Railways