The price range for a catalytic converter on a 2005 Honda Accord typically spans from about $100 to $1,000, depending on the part you choose and installation costs. The exact price depends on engine type (2.4L inline-four or 3.0L V6), whether the car uses one or two converters, and whether you install an OEM, aftermarket direct-fit, or universal unit.
What drives the cost
Prices for catalytic converters are influenced by the engine configuration, the number of converters in the exhaust system, emissions requirements in your region, and the source of the part (OEM vs aftermarket vs universal). Here is a practical breakdown of options you’ll encounter.
Options and price ranges
Prices vary by part type and source. The following ranges reflect typical market prices as of 2024–2026 and can vary by region and retailer.
- OEM direct-fit catalytic converter (Honda replacement) — typically about $500–$900+, with California CARB-compliant units sometimes higher.
- Aftermarket direct-fit catalytic converter (non-OEM) — commonly $300–$700; high-end CARB-approved options can reach $800–$1,200.
- Universal catalytic converter (fits multiple vehicles) — usually $100–$300, but installation can require fabrication and may not meet local emissions rules.
- Used or salvaged catalytic converter — often $50–$300, depending on condition and availability; reliability and warranty are limited.
Key takeaway: OEM direct-fit parts offer the best fit and emissions compliance, but cost more; aftermarket direct-fit can save money with comparable performance; universal or used parts are cheapest but carry higher risk and potential regulatory issues.
Branding and regulatory considerations
In many states, especially California, CARB-compliant parts are required for street use. Not all aftermarket or universal converters meet CARB standards, so verify compliance before purchasing to avoid future inspection or registration problems.
Installation and ancillary costs
Replacing a catalytic converter also involves labor and potential ancillary parts (gaskets, clamps, sensors). Labor rates and times vary by region and shop, and some cars require additional work if sensors or exhaust components are corroded.
Typical installation times are around 1–2 hours for a single-cat setup on a 4-cylinder Accord, or 2–3 hours for dual-cat configurations on the V6 model. Labor prices commonly range from about $75 to $150 per hour, depending on location and shop.
Where to buy
Several outlets offer catalytic converters for a 2005 Honda Accord. Prices and availability vary. Here are common channels:
- Dealerships (Honda parts department) — usually the most expensive, but guarantees OEM fit and CARB-compliant options.
- National auto parts stores (AutoZone, Advance, O'Reilly) — aftermarket direct-fit replacements; price ranges vary by model; CARB-approved choices are sometimes available.
- Online retailers (RockAuto, CARiD, Amazon) — wide price range; verify compatibility and emissions status; beware of counterfeit or counterfeit-looking parts.
- Salvage yards / used parts suppliers — often the cheapest option; life expectancy and warranty are variable.
- Specialty exhaust shops — may offer universal or custom-fit solutions with professional installation.
Tip: Always verify the part’s compatibility with your VIN and confirm emissions compliance requirements in your state before purchase.
Summary
For a 2005 Honda Accord, budgeting for a catalytic converter involves a wide price spread driven by engine configuration, number of converters, and part source. OEM direct-fit replacements tend to be the most expensive but safest for fit and emissions compliance; aftermarket direct-fit parts offer significant savings with similar performance potential; universal or used converters are the most affordable but carry higher risk and regulatory considerations. Don’t forget to factor in installation labor and potential sensor or exhaust component work. If you’re in a CARB state, prioritize CARB-approved or OEM parts to ensure a smooth inspection and legal street use.