2018 Mazda CX-3 Catalytic Converters

Please Select your Vehicle to See Exact Fit Parts

Keep Your 2018 Mazda CX-3 in Top Shape with a Quality Catalytic Converter

When it comes to maintaining or upgrading your 2018 Mazda CX-3, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Catalytic Converter for your CX-3. We currently carry a top Catalytic Converter in stock that is built to last. Whether you’re replacing a damaged Catalytic Converter or looking to upgrade, our selection for the 2018 Mazda CX-3 ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.

Essential 2018 Mazda CX-3 Catalytic Converters

Walker – CalCat CARB Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID) (Part No.84205)

CalCat CARB Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID)

from

$206.99
Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.

Product Features:
  • CARB COMPLIANT : For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state’s aftermarket converter regulations.
  • SUPERIOR TECHNOLOGY : Optimal high technology wash coat formulated to deliver superior performance (as compared to EPA-compliant converters)
  • CONSISTENT PERFORMANCE : Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
  • 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/or welding for installation
  • BUY WITH CONFIDENCE : Backed by Walker’s 50,000-mile/80,000-kilometer emissions and structural integrity warranty
See More

MagnaFlow – Universal OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.51205)

Universal OEM Grade Federal / EPA Compliant Catalytic Converter

from

$194.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51205. 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:
  • Compact, lightweight construction enables installation in confined areas, welding is required
  • Durable 308 stainless steel MIG welds
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Compact, lightweight construction enables installation in confined areas, welding is required
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
See More

Most Popular Catalytic Converter for 2018 Mazda CX-3s

Enhance your 2018 Mazda CX-3 with this popular Catalytic Converter we have in stock, for $194.99.

MagnaFlow – Universal OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.51205)

Universal OEM Grade Federal / EPA Compliant Catalytic Converter

from

$194.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51205. 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:
  • Compact, lightweight construction enables installation in confined areas, welding is required
  • Durable 308 stainless steel MIG welds
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Compact, lightweight construction enables installation in confined areas, welding is required
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
See More

FAQs for 2018 Mazda CX-3 Catalytic Converters

What’s the price range for 2018 Mazda CX-3 Catalytic Converters?

We currently have just one Catalytic Converters for the 2018 Mazda CX-3 in stock: Universal OEM Grade Federal / EPA Compliant Catalytic Converter and it costs $194.99.

Does Advance Auto Parts sell Catalytic Converters for other Mazda CX-3 model years?

Yes, we carry Catalytic Converters for 4 model years of Mazda CX-3s between 2016 and 2021. The following model years are the most popular for Catalytic Converter purchases: 2017, 2016, 2021, 2020, and 2019.

Does Advance Auto Parts sell Catalytic Converters for any other 2018 Mazda models?

Yes. We stock Catalytic Converters for 3 other popular 2018 Mazda models. Some of the most popular are 2018 6 Catalytic Converters, 2018 CX-5 Catalytic Converters, 2018 CX-9 Catalytic Converters, and 2018 MX-5 Miata Catalytic Converters.

What types of Catalytic Converters do you sell for my 2018 Mazda CX-3?

We currently have just 1 Catalytic Converter in stock for a 2018 Mazda CX-3, and as of 3/1/26, it is a Catalytic Converter.

Can I get help with 2018 Mazda CX-3 Catalytic Converter orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mazda Catalytic Converters and more.

What is your return policy for Mazda CX-3 Catalytic Converters?

Advance Auto Parts keeps returns simple. For new Mazda CX-3 Catalytic Converters and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.