WAGR M class (diesel)

class of 2+3 Australian B′B′ diesel-hydraulic locomotives

The WAGR M class were a total of 2 diesel-hydraulic locomotives operated by the Western Australian Government Railways (WAGR) from 1972 to 1994.

M class No. 1851 with Ma class No. 1862 at Forrestfield in 1986.

The M class were built in 1972 by Walkers Limited of Maryborough, Queensland. They were purchased specifically for hump yard shunting at Forrestfield. In early 1994 both the M class and two Ma class were sold off to Colonial Sugar Refineries (CSR) in Queensland for sugarcane service. No. 1851 and 1852 were regauged to 610mm (2 ft.) gauge and heavily rebuilt, the Ma class being used for spare parts. Both units remain in operation.