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About the course
This hands-on Certificate III builds mid-level skills for working in the heavy commercial trailer industry. You’ll develop broad technical knowledge and practical capability to service and repair trailer components, including wheel and tyre assemblies, electrical circuits, lighting and wiring, air-braking, hydraulics, suspension and dynamic control systems, and mechanical connections. This Certificate III in heavy commercial trailer technology supports technical progression in mechanical trailer servicing and compliance-related work.
Career outcome
Graduates may work in workshops and fleet maintenance settings servicing and repairing heavy commercial trailers and related systems. Typical roles include specialist trailer technician or heavy commercial trailer technician, with skills applicable to mechanical, electrical and braking systems on trailers. The qualification can also contribute toward requirements for heavy vehicle inspection and modification approval schemes (subject to regulator conditions). This Certificate III supports careers in mechanical trailer maintenance and inspection pathways.
Average Salary***
