The South Australian Railways 830 and Silverton Rail 48s classes are of a very similar design.

The 48 Class were ordered to commence the conversion of branch lines to diesel traction with the first entering service in September 1959.

Aside from a couple written off after accidents in the mid-1980s, withdrawals didn't commence in earnest until August 1994.

In December 1994, Australian National purchased two from FreightCorp[2] with 4813 rebuilt as DA7 for the narrow gauge Eyre Peninsula Railway and 4826 scrapped some years later at Port Augusta.

The locomotive saw service on the far western portion of the Eyre Peninsula Railway narrow gauge network with One Rail Australia working the Thevenard gypsum traffic, renumbered 906, however following the arrival of 2300 Class units 2332D and 2364D from Queensland in April 2023, it has been withdrawn and stored at Thevenard.

In February 1997, 4812 was rebuilt and repainted by FreightCorp at Delec Locomotive Depot for Cargill Australia for use as a shunter at their Kooragang Island plant numbered CAR1.

GrainCorp have purchased 18 Mark 3s and are having them overhauled by Junee Railway Workshop at which point they are renumbered into the 482xx series, they are numbered the following, Operational 48201, 48208, 48211, 48215 Stored

They were designed to operate in push-pull formation on intermodal container trains between Port Botany and Clyde/Yennora.