Mazda Millenia Catalytic Converters

Your One-Stop Shop For Trusted Mazda Millenia Catalytic Converters

If you’re in search of Mazda Millenia Catalytic Converters aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 19 Catalytic Converters from top brands with prices ranging from $3.59 to $1,418.00.

Beyond great prices, we stock trusted brands manufacturing all types of Catalytic Converters for your Mazda Millenia.

And don’t forget to read customer reviews across all Catalytic Converters categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Catalytic Converters have to cost top dollar, and we prove it. Browse our top Mazda Millenia Catalytic Converters below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

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Essential Mazda Millenia Catalytic Converters

MagnaFlow – Hm Grade Federal / Epa Compliant Universal Catalytic Converter (Part No.99004HM)

Hm Grade Federal / Epa Compliant Universal Catalytic Converter

from

$242.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99004HM. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.

Product Features:
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MagnaFlow – Oem Grade Federal / Epa Compliant Universal Catalytic Converter (Part No.51204)

Oem Grade Federal / Epa Compliant Universal Catalytic Converter

from

$211.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51204. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion welds greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.

Product Features:
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MagnaFlow – Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter (Part No.51817)

Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter

from

$371.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51817. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Catalytic Converter is designed to fit the 1996-2002 Mazda Millennia 2.3L. MagnaFlow 51817 includes (3) Flat Ring Gaskets and interchanges with OE parts KJ13-20-600. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
  • Durable 308 stainless steel MIG welds
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
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MagnaFlow – California Grade Carb Compliant Universal Catalytic Converter (Part No.441204)

California Grade Carb Compliant Universal Catalytic Converter

from

$637.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 441204. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
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MagnaFlow – Oem Grade Federal / Epa Compliant Universal Catalytic Converter (Part No.51004)

Oem Grade Federal / Epa Compliant Universal Catalytic Converter

from

$252.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51004. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion welds greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.

Product Features:
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MagnaFlow – California Grade Carb Compliant Direct-Fit Catalytic Converter (Part No.441078)

California Grade Carb Compliant Direct-Fit Catalytic Converter

from

$641.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 441078. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Catalytic Converter is designed to fit the 1995-1996 Mazda Millennia 2.5L. MagnaFlow 441078 interchanges with OE parts KL47-20-600, KLG9-20-600. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
  • Durable 308 stainless steel MIG welds
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
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MagnaFlow – Oem Grade Federal / Epa Compliant Direct-Fit Manifold Catalytic Converter (Part No.51870)

Oem Grade Federal / Epa Compliant Direct-Fit Manifold Catalytic Converter

from

$1204.00
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 51870. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Manifold Catalytic Converter is designed to fit the 1995-2002 Mazda Millennia 2.3L. MagnaFlow 51870 includes (3) Nuts, (3) Bolts, (2) Flange Gaskets and interchanges with OE parts KJ02-20-55X, KJ02-20-55XA. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
  • Durable 308 stainless steel MIG welds
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
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Walker – Ultra EPA Universal Catalytic Converter – 2" Inlet (ID) 2" Outlet (ID) (Part No.93236)

Ultra EPA Universal Catalytic Converter - 2" Inlet (ID) 2" Outlet (ID)

from

$172.99
Product Features:
  • EPA COMPLIANT – For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA, CO & NY. Legal in ME on EPA Federal Emission Equipped Vehicles only. Consult your state’s aftermarket converter regulations for details.
  • KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES – OE-style high-technology wash coat and optimal precious metal load delivers required reduction in tailpipe emissions to match vehicle application
  • DURABLE – Features stainless-steel body with aluminized pipe and heat shields for durability
  • FLEXIBLE SOLUTION – Customizable design features expandable bushings for easy fitment and may require specialized fabrication and welding for installation
  • OE-STYLE DESIGN – Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
  • BUY WITH CONFIDENCE – Backed by Walker’s 25,000-mile/40,000-kilometer emissions and 50,000-mile/80,000-kilometer structural integrity limited warranty. Visit Walkerexhaust.com for details.
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MagnaFlow – Oem Grade Federal / Epa Compliant Direct-Fit Manifold Catalytic Converter (Part No.51251)

Oem Grade Federal / Epa Compliant Direct-Fit Manifold Catalytic Converter

from

$896.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 51251. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Manifold Catalytic Converter is designed to fit the 1995-2002 Mazda Millennia 2.3L. MagnaFlow 51251 includes (3) Bolts, (2) Flange Gaskets and interchanges with OE parts KJ02-20-50X, KJ02-20-50XA, KJ02-20-50XB. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
  • Durable 308 stainless steel MIG welds
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
See More

Dorman – Manifold Converter – Not CARB Compliant – Not For Sale – NY – CA – ME (Part No.674-605)

Manifold Converter - Not CARB Compliant - Not For Sale - NY - CA - ME

from

$479.99
This catalytic converter with integrated exhaust manifold – a.k.a. manifold converter – is precision-engineered to match the original equipment on specific vehicle years, makes and models for a reliable replacement.

Product Features:
  • Direct replacement – this manifold converter is designed to match the fit and performance of the original equipment on specific vehicles
  • Convenient kit – includes gaskets and downpipe hardware to simplify installation
  • Durable construction -manufactured within strict tolerances for reliable longevity
  • Trustworthy value – backed by team of engineers and quality control experts in the United States
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MagnaFlow – California Grade Carb Compliant Universal Catalytic Converter (Part No.418005)

California Grade Carb Compliant Universal Catalytic Converter

from

$477.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 418005. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
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MagnaFlow – California Grade Carb Compliant Direct-Fit Manifold Catalytic Converter (Part No.452025)

California Grade Carb Compliant Direct-Fit Manifold Catalytic Converter

from

$1418.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Manifold Catalytic Converter 452025. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Manifold Catalytic Converter is designed to fit the 1995-2002 Mazda Millennia 2.3L. MagnaFlow 452025 includes (3) Nuts, (3) Bolts, (2) Flange Gaskets and interchanges with OE parts KJ02-20-55X, KJ02-20-55XA. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
  • Durable 308 stainless steel MIG welds
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
See More

Victor Reinz – Catalytic Converter Gasket (Part No.71-11141-00)

Catalytic Converter Gasket

from

$4.99
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Product Features:
  • Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
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Walker – Exhaust Pipe Flange Gasket (Part No.31332)

Exhaust Pipe Flange Gasket

from

$3.59
Complete your exhaust repair with Walker gaskets and flanges. Built from quality materials for long lasting durability, they’re available in a range of styles and sizes. Each component is designed to work seamlessly with OE exhaust systems and Walker aftermarket replacement parts.

Product Features:
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
  • HEAT RESISTANT — Designed to resist heat for long-lasting performance
  • PREMIUM MATERIALS — Made from high-quality materials for durability and long life
  • ENGINEERING EXPERTISE — Parts are reviewed and validated and approved by Walker engineers through rigorous research and development
  • REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
  • EASIER TO INSTALL — Featuring slotted bolt holes (where applicable) for easy installation, gasket slips into place
  • BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
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Catalytic Converters Brands You Can Trust For Your Mazda Millenia

4 trusted brands of Catalytic Converters line our shelves, ready to help keep your Mazda Millenia running smooth. Below are some of the most popular brands and their top Catalytic Converters offerings:

Most Purchased Mazda Millenia Catalytic Converters from MagnaFlow

When you buy the most frequently purchased MagnaFlow brand Catalytic Converters, you can be confident it will be the right part for your Mazda Millenia. Here are the MagnaFlow Catalytic Converters Advanced Auto customers buy the most:
Exhaust Pipe Flange Gasket
from $3.59
(38)
Exhaust Pipe Flange Gasket
Catalytic Converter Gaskets

FAQs for Mazda Millenia Catalytic Converters

What are the most purchased Catalytic Converters for the Mazda Millenia?

Out of 19 Catalytic Converters for the Mazda Millenia, the most popular in our inventory are:
Hm Grade Federal / Epa Compliant Universal Catalytic Converter
from $242.99
This product is not rated
Hm Grade Federal / Epa Compliant Universal Catalytic Converter
Catalytic Converters
California Grade Carb Compliant Universal Catalytic Converter
from $477.99
This product is not rated
California Grade Carb Compliant Universal Catalytic Converter
Catalytic Converters