The WAGR K class was a single member class of 0-6-2T tank locomotive used intermittently by the Western Australian Government Railways (WAGR) between 1891 and 1926.

The K class engine was built in 1891 by Hudswell, Clarke & Co, Leeds, for the construction of Fremantle Harbour.

It entered service with the Public Works Department, moving later the same year to WAGR as K19.

[1] The locomotive was used subsequently on a number of other construction projects, passing into and out of WAGR ownership on several occasions with the Public Works Department, Goldfields Water Supply Administration and Fremantle Harbour Works Department operating it at various times across the state from Geraldton in the north to Bunbury in the south.

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