New South Wales 48 class locomotive
 The 48 Class are a class of diesel locomotives built by AE Goodwin Auburn for the New South Wales Government Railways between 1959 and 1970. Once the most ubiquitous locomotive in New South Wales (and Australia) they are based on Alco frames and prime movers using General Electric (later Associated Electrical Industries) electrical equipment. The South Australian Railways 830 and Silverton Rail 48s classes are of a very similar design.