Code3040010
Operation Code: 3040010
Standard Labor Map: Catalytic Converter Replacement
About This Operation Code
When you see 3040010 on your mechanic's quote or invoice, it refers to the standardized automotive industry code for Catalytic Converter Replacement. Mechanical shops use these codes to lookup predefined labor times (guided by Alldata or Mitchell 1).
The catalytic converter filters harmful gases from the exhaust and turns them into safer emissions.
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Standardized Labor
Shop labor rates range from $120–$250/hour depending on your city. Using 3040010 prevents a mechanic from charging "made up" times.
Average Total Cost (Labor + Parts)
~$800-$1,500 (part prices vary a lot by vehicle; labor $100-$300)
*Based on 2026 national averages for catalytic converter replacement.
View Full Pricing Guide →⚠️ Beware Overlap Labor
Dishonest shops often double-dip labor when billing multiple Op Codes. For example, if parts must be removed to access Catalytic Converter Replacement, they shouldn't bill full Book Time for both codes.
Catalytic converters are frequently stolen and also a common upsell for check-engine lights: risk is a shop replacing the cat when the issue might be an O2 sensor or even an exhaust leak; not informing you that aftermarket cats (while much cheaper) may not last as long or may trigger codes - or conversely, insisting on an expensive OEM cat unnecessarily; failing to address root causes (if the engine running rich caused cat failure, just replacing cat will lead to repeat failure).
Scan Quote for Overlap →