A convoy of 14 Country Fire Service trucks and four command vehicles departed Tailem Bend on Monday morning to support firefighting efforts in New South Wales.
The deployment included a local fire appliance from Jervois.
The bushfires currently ablaze across NSW have so far claimed three lives and with seven more people reported missing.
The blazes - which have destroyed more than 150 homes - continue to rage and authorities expect the death toll to rise.
Police confirmed the death of a third victim at Johns River, north of Taree, late on Saturday afternoon.
The convoy of CFS vehicles comes after the CFS joined with the SA Metropolitan Fire Service, Department of Environment and Water, and SA Ambulance Service in sending a deployment of 32 firefighters and a paramedic to help contain the fires burning in New South Wales on Saturday.
The CFS reported that Saturday's deployment took South Australia's contribution over the past month to over 180 personnel.