The CSR Qishuyan SDA2 is a diesel-electric locomotive manufactured by CSR Qishuyan Locomotive Co, in association with MTU Friedrichshafen for use in Australia.
In 2013, Pacific National ordered five narrow gauge versions of the CSR Ziyang SDA1 locomotives. Classified as the SDA2 class, they were purchased for use on the 1,067 mm (3 ft 6 in) network in Queensland.
All had been delivered by September 2014 and were undergoing trials. They entered service in February 2015.
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