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How much does it cost to fix a catalytic converter on a Lexus?

A catalytic converter replacement on a Lexus typically costs about $1,000 to $3,000 per unit, including parts and labor. Costs vary by model, whether you use OEM or aftermarket parts, and whether oxygen sensors or exhaust piping must be replaced.


What drives the price


The following factors largely determine the final bill when you need a catalytic converter fixed or replaced on a Lexus:



  • Parts choice: OEM (factory) converters vs aftermarket equivalents, and whether the model uses one or two converters.

  • Labor time: installation time depends on access, engine layout, and whether the exhaust must be disassembled or cut and welded.

  • Additional components: oxygen sensors, gaskets, clamps, and possibly a new exhaust pipe or hanger hardware.

  • Vehicle specifics: some Lexus models have dual catalytic converters or more complex exhaust systems, which can increase both parts and labor costs.

  • Shop location and rates: labor rates vary by region and shop, and diagnostic fees may apply if the issue isn’t clearly a failed converter.

  • Emissions-related considerations: in some cases, failure is covered under warranty or an emissions program, which can affect the out-of-pocket cost.


Understanding these factors helps you gauge whether you’re facing a straightforward replacement or a more involved repair, and it sets expectations for quotes from local shops.


Typical price ranges for common Lexus scenarios


Prices can vary by model and whether you opt for OEM or aftermarket parts. The ranges below describe total installed costs (parts plus labor) you might expect in a typical repair shop.



  • Aftermarket single catalytic converter replacement (parts + labor): roughly $500 to $1,800.

  • OEM single catalytic converter replacement (parts + labor): roughly $1,000 to $2,800.

  • Aftermarket dual catalytic converters replacement (both units): roughly $1,000 to $3,200.

  • OEM dual catalytic converters replacement (both units): roughly $2,000 to $4,000.

  • Additional sensors or components (each oxygen sensor, gasket, clamps): typically $50 to $150 per sensor, plus minor parts.


High-end or hybrid models, dual-cat setups, and vehicles with harder-to-access exhaust routes can push costs toward the higher end of these ranges. Theft-related replacement, or complex damage requiring custom fabrication, can also add to the final bill.


Warranties and coverage


Most federal emissions warranties cover catalytic converters for 8 years or 80,000 miles, whichever comes first, if the failure is due to a defect in materials or workmanship. Some states, or the vehicle’s specific program, may offer longer coverage. If a failure qualifies under warranty, the replacement cost to you can be significantly reduced or eliminated. Normal wear, damage from an accident or theft is typically not covered, so be sure to check your vehicle’s warranty status and speak with the dealer about any applicable coverage.


What to do to get a precise quote


To obtain an accurate price for your Lexus, follow these steps:



  • Call multiple shops or request quotes online to compare prices for OEM vs aftermarket parts.

  • Ask for a written estimate that itemizes parts, labor, and any diagnostic fees.

  • Specify your model year and trim, since a Lexus ES, RX, IS, NX, or LX may have different configurations.

  • Inquire whether the quote includes sensors and gaskets, and whether any potential extra work (like replacing a damaged exhaust pipe) is anticipated.


Getting several quotes helps ensure you’re not overpaying and gives you leverage if a shop tries to upsell unnecessary components. You can also ask about any available coupons or financing options.


Summary


For most Lexus owners, replacing a catalytic converter typically costs between $1,000 and $3,000 per converter installed, with aftermarket parts skewing toward the lower end and OEM parts toward the higher end. The final price depends on the model, whether you’re replacing one or both converters, the labor rate in your area, and whether additional sensors or hardware need replacement. If the converter failure is covered under the vehicle’s emissions warranty, your cost could be significantly reduced. Shop around, compare OEM and aftermarket options, and verify exactly what each quote includes to make the best-informed decision.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.