Prices vary, but for a 2005 Honda Odyssey you can expect roughly $250–$650 per catalytic converter installed with aftermarket parts, or $700–$1,150 per converter with OEM parts. Since the Odyssey uses two catalytic converters, the total typically ranges from about $500–$1,300 with aftermarket parts to $1,400–$2,500 with OEM parts, before tax and labor. These figures reflect current market trends as of 2024–2026 and can vary by region, shop, and specific vehicle condition.
Price ranges by part type
The following figures show typical costs for a single catalytic converter. They help you compare OEM versus aftermarket options and understand what you might pay for one unit.
- Aftermarket direct-fit catalytic converter (per unit): about $150–$350
- OEM Honda catalytic converter (per unit): about $550–$900
- Labor to install a single converter: about $100–$250
- All-in price range per converter (parts + labor): aftermarket roughly $250–$600; OEM roughly $700–$1,150
Note: Some shops quote all-in prices that include sensors, gaskets, and clamps; prices vary by region and shop. If your car has stubborn corrosion or seized hardware, labor can climb.
Two-converter scenario for a 2005 Odyssey
Because the 2005 Odyssey generally uses two catalytic converters, the total installed cost depends on whether you pick aftermarket or OEM parts and whether both units need replacement at once.
- Two converters with aftermarket parts (parts for both units): about $300–$700
- Two converters with OEM parts (both units): about $1,100–$2,000
- Labor for replacing both converters: roughly $200–$500 total
- Possible additional costs: oxygen sensors, gaskets, and mounting hardware; $50–$300 extra if replacements are needed
Conclusion: In most regions, a full two-converter replacement on a 2005 Odyssey ranges from about $1,000 to $2,500 with aftermarket parts, or $1,500 to $3,000 with OEM parts, before taxes and any shop fees. Labor rates and regional demand can shift these numbers.
Ways to save on catalytic converter costs
Consider these practical steps to reduce out-of-pocket costs while maintaining exhaust performance and emissions compliance.
- Get multiple quotes from independent auto shops rather than the dealership, which often charges a premium.
- Ask about aftermarket direct-fit converters that meet or exceed OEM specs; they are typically cheaper and often come with warranties.
- Check whether only one converter is failing; sometimes one unit can be replaced at a lower cost if the other is still serviceable.
- Reuse or replace oxygen sensors only if needed; replacing sensors unnecessarily can raise costs.
- Shop salvage yards for used catalytic converters, but ensure the part is in good condition and legally compatible with your vehicle’s emissions requirements.
Conclusion: By obtaining several estimates, considering aftermarket options, and prioritizing necessary replacements, you can manage the cost while ensuring the Odyssey continues to meet emissions standards.
Summary
The cost of catalytic converters for a 2005 Honda Odyssey varies mainly by part type (aftermarket vs OEM) and by whether both converters are replaced. Per-converter installed costs typically range from about $250–$1,150, with full two-converter replacements commonly totaling $1,000–$2,500 for aftermarket parts or $1,500–$3,000 for OEM parts, depending on labor and location. Always obtain written quotes from reputable shops and consider long-term warranties when choosing parts. Theft risk and regional price differences can also influence the final cost.


