Nissan Altima Catalytic Converter Replacement Cost
$870 – $1,560
Replacing a catalytic converter on a Nissan Altima costs $870 to $1,560 on average in the US, parts and labor included. Expect to pay $710–$1,320 for the part and $160–$240 for labor (~1.5h at $100–150/hour).
Cost breakdown
| Item | Low | High |
|---|---|---|
| Catalytic Converter (aftermarket → OEM part) | $710 | $1,320 |
| Labor (~1.5h, independent shop → dealer) | $160 | $240 |
| Total | $870 | $1,560 |
What affects the price
- Part choice — aftermarket parts run $710–$1,015, while OEM/dealer parts can reach $1,320.
- Shop type — independent shops charge around $100–120/hour; dealerships $130–150+/hour for the same ~1.5h job.
- Model year and trim — newer and higher-trim Nissan Altima versions often use pricier parts with more electronics.
- Region — labor rates in major metros run 15–25% above the national average.
Learn more in the full guide: Catalytic Converter Replacement Cost in 2026 →
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Frequently Asked Questions
How much does it cost to replace a catalytic converter on a Nissan Altima?▾
On average, $870–$1,560 including parts and labor. The catalytic converter itself runs $710–$1,320, and labor adds $160–$240 (about 1.5 hours of shop time).
Can I replace the catalytic converter on a Nissan Altima myself?▾
It's possible with the right tools and experience, but budget 1.5 hours of work. DIY saves the labor ($160–$240) but mistakes can cost more than the job itself. Most owners use an independent shop.
Why do quotes for a Nissan Altima catalytic converter replacement vary so much?▾
Three reasons: part choice (aftermarket vs OEM can double the parts cost), shop labor rate (independent shops charge around $100–120/hr vs $130–150/hr at dealers), and your region. Always get 2–3 written quotes.
Is it worth replacing the catalytic converter on an older Nissan Altima?▾
Compare the quote against your car's market value. As a rule of thumb, a single repair under 30% of the vehicle's value is usually worth doing. For a bigger decision, get a free AI estimate of your car's overall condition with our photo tool.
More Nissan Altima repair costs
- Nissan Altima Starter Replacement Cost
- Nissan Altima Alternator Replacement Cost
- Nissan Altima Side Mirror Replacement Cost
- Nissan Altima Windshield Replacement Cost
- Nissan Altima Wheel Bearing Replacement Cost
- Nissan Altima Radiator Replacement Cost
Catalytic Converter replacement on other Nissan models
All prices are estimated US national averages for 2026 (parts + labor) and are provided for informational purposes only. Actual quotes vary by model year, trim, region, and shop.