Expect a broad price range: typically between $250 and $1,500 for parts and labor, depending on whether you choose OEM versus aftermarket parts and whether one or two catalytic converters are required. Actual costs vary by region, shop, and the specific configuration of your vehicle.
The 2004 Honda Odyssey’s exhaust system generally includes two catalytic converters. Prices depend on the type of part (OEM vs aftermarket), compliance requirements in your area, and whether you’re replacing one or both units. The following sections break down typical costs, buying options, and installation considerations to help you plan a budget.
Typical price ranges by part type
Prices vary by whether the converter is OEM or aftermarket, and whether you’re replacing one or both units. The ranges below reflect common market prices for a 2004 Odyssey in many regions.
- OEM Honda catalytic converter (per unit, direct-fit): typically $600–$1,000. In many cases, dealers price higher, and installation of both units can push total costs toward the upper end.
- Aftermarket direct-fit catalytic converter (per unit): typically $250–$600. Brand and CARB compliance status can shift price upward or downward.
- Universal aftermarket catalytic converter (fits multiple models, may require fabrication): typically $100–$300. Note that universal units may require welding and additional labor, and not all are CARB-compliant.
- Labor and installation (per converter): typically $100–$250, depending on shop rates and vehicle access; many shops bill by hour, with common total labor for one cat around $150–$300 and higher for two cats.
- Additional costs to consider: new gaskets, oxygen sensor replacements if needed, clamps, and potential diagnostic checks after installation.
When buying, remember that the Odyssey may require one or two catalysts. If your vehicle needs both, multiply the per-unit figures accordingly and factor in doubled labor, gaskets, and sensor considerations.
Where to buy and how to verify fit
To ensure proper fit and emissions compliance, it’s important to verify the exact part number and compatibility with your VIN. The following guidance can help you avoid mismatches and save money.
- Check your VIN and the exact part number from your Honda dealer or a trusted parts retailer to confirm compatibility with a 2004 Odyssey.
- Decide between OEM (Honda) or aftermarket parts. OEM parts are typically more expensive but guaranteed to match factory specifications; aftermarket parts vary in quality and CARB status.
- Confirm CARB compliance if you live in California or other areas with strict emissions rules; non-CARB parts may be restricted for street use in those regions.
- Shop around at reputable retailers (online and local) and compare warranties, return policies, and estimates for installation.
Consult with a licensed mechanic about whether both converters are necessary, the preferred type of replacement for your vehicle, and any potential impact on emissions testing.
Labor considerations and timing
Installation time can vary based on vehicle access and shop workload. If one converter needs replacement, labor may be shorter; replacing both typically takes longer and may involve additional tasks such as sensor checks or exhaust alignment. Plan for a few hours at the shop and discuss a clear quote before authorizing work.
In summary, replacing catalytic converters on a 2004 Honda Odyssey can range from about a couple hundred dollars for a basic aftermarket unit with modest labor to well over a thousand dollars for OEM parts installed by a dealership, especially if two converters are involved. Always obtain multiple quotes and verify CARB compliance to avoid future emissions issues.
Summary
For a 2004 Honda Odyssey, catalytic converter costs depend on whether you choose OEM or aftermarket parts, how many converters you need, and the local labor rates. Typical installed ranges are roughly $800 to $2,500 when replacing one or two units, with OEM dealer parts leaning toward the higher end. Before buying, confirm part numbers, CARB status, and obtain several quotes to ensure you get the right part at a fair price. Plan for potential additional costs such as gaskets and sensor replacements, and consult a qualified mechanic to determine the exact needs for your vehicle.
Is it worth fixing a catalytic converter?
Repairing or replacing a catalytic converter restores your vehicle's emissions control system to optimal functionality. This not only helps your vehicle run efficiently but also reduces harmful emissions, contributing to a cleaner environment.
Does a 2004 Honda Odyssey have a catalytic converter?
The catalytic converter is a crucial component that helps to achieve this. It converts harmful chemicals into less harmful ones, ensuring a safer environment for everyone. If you suspect that your 2004 Odyssey catalytic converter is damaged, it's time to replace it with one of the trusted options available at AutoZone.
How much does it cost to replace a catalytic converter on a Honda Odyssey?
The average cost for a Honda Odyssey Catalytic Converter Replacement is between $1,791 and $2,191. Labor costs are estimated between $153 and $225 while parts are priced between $1,638 and $1,966. This range does not include taxes and fees, and does not factor in your unique location.
How much is a 2004 Honda Odyssey worth today?
Estimated Values
Estimated Trade-In Values for the 2004 Honda Odyssey EX-L Minivan 4D range from about $750 to $1,125 depending on vehicle condition. Estimated Private Party Values range from about $1,600 to $2,075 depending on vehicle condition. Valid for ZIP Code 29401 through 4/23/2026.