A typical replacement catalytic converter for a 2018 Honda Odyssey costs somewhere around a few hundred dollars for aftermarket parts up to several thousand dollars for OEM units, with total installed price commonly ranging from roughly $500 to $3,000 depending on whether one or two converters are involved and whether you choose aftermarket or OEM parts.
What determines the price
Prices for replacing a catalytic converter on a 2018 Odyssey are driven by part type, the number of converters in your exhaust system, labor costs, and regional differences. The Odyssey’s setup can require one or two converters, and dealers generally price OEM parts higher than aftermarket replacements. Labor rates vary by shop and location, and additional costs such as taxes, core charges, and potential sensor replacements can affect the final bill.
- OEM vs aftermarket parts: OEM Honda converters tend to cost more but come with Honda’s warranty and exact fit, while aftermarket units are cheaper but vary in quality and warranty.
- Number of converters: Some configurations require one converter; others may require two, affecting both parts and labor costs.
- Labor rates and shop type: Dealerships generally charge more per hour than independent shops; labor time depends on access and whether other components must be removed for access.
- Additional components and services: Core charges, clamps, gaskets, O2 sensors, and disposal fees can add to the total; sensor replacement is commonly needed with catalytic converter work.
In short, the final bill depends on your vehicle’s exact configuration, where you shop, and the quality of parts you choose. A precise quote requires inspection of your exhaust system and confirmation of which converter(s) are involved.
Estimated price ranges for the 2018 Odyssey
The price ranges below reflect common market values in the United States as of 2024–2026. Your VIN and local market can shift these numbers.
- Aftermarket single converter: Part roughly $150–$600; Labor about $100–$250; Installed total around $250–$850.
- Aftermarket two converters: Part roughly $300–$1,200; Labor about $200–$500; Installed total around $500–$1,700.
- OEM Honda single converter: Part roughly $700–$1,600; Labor about $100–$250; Installed total around $800–$1,850.
- OEM Honda two converters: Part roughly $1,400–$3,200; Labor about $200–$500; Installed total around $1,600–$3,700.
Because the Odyssey’s exhaust layout can vary by trim and production date, exact pricing for your vehicle may differ. Always verify whether your vehicle needs one or two converters and what the included labor covers when you request quotes.
Vehicle-specific notes
For the 2018 Odyssey, it’s important to confirm the exact converter count for your VIN, as some configurations use a front and a rear catalytic converter. The location and access can influence both the difficulty of the job and the labor time. A dealer or qualified independent shop can inspect the exhaust system to determine the precise replacement needs and provide an itemized estimate.
How to get an exact quote
Follow these steps to obtain precise pricing for your 2018 Odyssey:
- Retrieve your vehicle’s VIN and confirm whether one or two catalytic converters are present on your specific model.
- Request written quotes from multiple sources: Honda dealership, independent exhaust specialists, and reputable parts retailers. Ask for both OEM and aftermarket options with labor estimates.
- Clarify what the quote includes (tax, core charges, disposal fees, clamps, gaskets, sensors) and whether warranties apply.
- Ask about the timing of the replacement and any potential need for sensor replacement or further exhaust work.
- Choose the option that balances price, warranty, and reliability, then schedule the service with a clear, itemized agreement.
Obtaining multiple, detailed quotes helps you understand the true cost and protects you from surprise charges once the work begins.
Summary
Replacing a catalytic converter on a 2018 Honda Odyssey can range from a few hundred dollars to several thousand, depending on whether you replace one or both converters and whether you use aftermarket or OEM parts. Labor, taxes, core charges, and potential sensor replacements also affect the final price. To get an accurate figure, have your exact VIN inspected by a dealer or qualified shop, then obtain multiple itemized quotes for both OEM and aftermarket options.