Honda Accord Catalytic Converter Replacement Cost

Replace a failed or stolen catalytic converter.

$900 – $2,500

Typical labor: 1 to 3 hours

Estimate based on Honda Accord parts and labor adjustments versus the national average. Your exact cost depends on year, trim, mileage, and shop. Get a free personalized AI estimate above.

Why Honda Accord Owners See This Pricing

The Accord is one of the most repair-friendly midsize sedans, with strong aftermarket part support.

For reference, the national average for catalytic converter replacement on a typical passenger vehicle is $900 to $2,500. The Honda Accord runs about +0% versus that baseline.

Common Symptoms in the Honda Accord

Loud roaring exhaust (often from theft)

Check engine light with code P0420 or P0430

Failed emissions test

Rotten egg smell from exhaust

What It Is

The catalytic converter cleans up harmful emissions before they leave the tailpipe. It contains precious metals like platinum and palladium, which is why it's expensive and frequently stolen.

Why It Matters

You cannot legally drive without a working cat in most states, and you'll fail emissions testing.

How to Save Money on Honda Accord Catalytic Converter Replacement

After-market direct-fit cats are 50 to 70 percent cheaper than OEM and work fine on older cars
Some states require CARB-compliant cats, check before buying a generic one
Anti-theft shields cost $150 to $300 installed, much cheaper than a replacement cat

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Frequently Asked Questions

Why are cats so expensive?

They contain precious metals like platinum, palladium, and rhodium, which are worth hundreds of dollars each in a single converter.

Can I drive without a catalytic converter?

It's illegal in all 50 states under federal law, and it's loud and smelly. Get it replaced.