Prices for a catalytic converter replacement on a 2002 Honda Civic range from about $50 (for a used unit) to $1,200+ for a new OEM part, with installation bringing total costs to roughly $300–$1,600 depending on part choice and local labor rates.
What affects the price
Several factors determine final cost, including the part type, the model’s emissions setup, the number of converters, and where you shop or have it installed.
- OEM Honda catalytic converter (new): Part typically $600–$1,200+, with labor extra.
- Aftermarket direct-fit catalytic converter (brand-name or economy): Part typically $150–$450, labor extra.
- Aftermarket universal catalytic converters (requires adaptation): Part typically $100–$250, higher installation time and potential welding.
- Used or salvaged catalytic converter: Part typically $50–$150, condition varies.
- Two-converter setups (rare on this model but possible in some emissions configurations): Combined part costs may be $300–$800+, labor higher if both are replaced.
Prices can swing based on your region, shop, and any labor surcharges. Always verify compatibility with your exact Civic model (engine size and US/Canada emissions) and check whether the quote includes sensor tests or replacement if needed.
Where to buy and what to expect
Options for obtaining or having the part installed include dealers, auto parts stores, online retailers, and salvage yards. Here is a quick guide to your options.
- Honda dealership or authorized parts department (OEM parts): typically the most expensive but guaranteed fit and warranty; expect $600–$1,200+ for the part.
- Auto parts chains and online retailers (aftermarket direct-fit): typically $150–$450 for the part; ensure compatibility with your VIN and emissions standards.
- Salvage yards or used-parts marketplaces: typically $50–$150 for a used unit; verify sensor condition and corrosion.
- Independent exhaust shops: price varies, often $100–$300 in labor plus parts; shop warranties may apply.
Tips: request a written, itemized quote and confirm warranty terms before work begins. Verify that the part matches your Civic’s engine and emission setup, and ask whether the price includes sensor checks or replacements if needed.
Installation considerations and warranties
Replacing a catalytic converter involves removing part of the exhaust system, potentially welding in a new unit, and ensuring the vehicle passes emissions. Labor times vary by shop and whether sensors need replacement.
- Typical labor: about 1–2 hours in a standard shop; higher in high-cost regions.
- Warranties: aftermarket converters often include 1–5 years; OEM parts may have longer coverage depending on dealer policy.
- Post-install steps: have the mechanic clear codes with an OBD scanner and perform a drive cycle to ensure all readiness monitors are set and emissions testing is ready, if required.
Note: Some regions require certified technicians for emissions-related repairs; check local regulations and your vehicle’s emissions documentation.
Summary
For a 2002 Honda Civic, catalytic converter replacement costs vary widely based on part choice and labor, from budget used parts to new OEM units. Always compare multiple quotes, confirm fit for your exact model, and review warranties. With careful shopping and proper installation, you can balance reliability and cost while keeping your Civic compliant with emissions standards.


