Signs to investigate
- Check-engine light with catalyst-efficiency codes
- Loss of power from an exhaust restriction
- Rattling inside the converter
- A failed emissions test or strong sulphur smell
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Catalytic Converter Replacement Cost in Australia
Catalytic converters can fail because of misfires, oil burning or mixture problems. Fixing the underlying cause helps protect the expensive replacement part.
Calculate for my car → Free to use. No account needed.Pricing data checked . Guide reviewed 1 September 2026. How estimates work.
Vehicle-profile example
Catalytic Converter Replacement
2018 Toyota Corolla · Australia
$835–$4,073Parts$676–$3,378
Labour1.4490000000000003–3.8640000000000003 hours
Example only. Choose your own vehicle profile for an adjusted range.What changes the price?
- Genuine, approved aftermarket or universal converter
- Number and location of converters
- Integrated exhaust-manifold designs
- Sensors, seized fasteners and underlying engine faults
Questions to ask the workshop
- Which test confirmed the converter has failed?
- Has the cause of the failure been identified?
- Is the part compliant for this vehicle?
- Are sensors, gaskets and labour warranty included?
Understand the quote before agreeing
How much does catalytic converter replacement cost in Australia?
For the 2018 Toyota Corolla example shown, ShiftyMechanics estimates $835–$4,073. Exact parts and the workshop's actual labour rate can change the result.
Does the estimate include parts and labour?
Yes. ShiftyMechanics shows the parts range, labour hours, Australian independent-workshop hourly-rate range and estimated total separately.
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