Catalytic converter replacement cost
A catalytic converter replacement typically costs $900–$2,500 at a US independent shop for a mainstream vehicle — but your exact cost depends on your year, make, model, and engine.
- Parts
- $400–$2,000
- Labor
- $150–$400
- Total
- $900–$2,500
Replacing a catalytic converter is one of the most expensive common repairs because the part itself contains precious metals. The good news: a P0420 or P0430 code is often a lazy oxygen sensor (a ~$45 part), not a dead converter — so confirm the diagnosis before you spend four figures.
What affects the price
- OEM vs aftermarket/CARB-compliant converter
- Number of converters (V6/V8 have 2–4)
- Whether it is welded or bolt-on
- Local emissions requirements (CA/CARB costs more)
DIY vs. shop
Bolt-on units are an intermediate DIY (~$400–900 in parts); welded/exhaust-integrated jobs are best left to a shop.
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Estimate my repair — freeRelated symptoms: Failed emissions / smog test , Poor fuel economy