2018 Buick Envision Catalytic Converters

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Keep Your 2018 Buick Envision in Top Shape with Quality Catalytic Converters

Whether you’re repairing or upgrading your Catalytic Converter, using high-quality parts is key to keeping your 2018 Buick Envision looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Catalytic Converters. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 2018 Buick Envision Catalytic Converter at Advance Auto Parts is around $499.17, with a range that starts at $194.99 and goes up to $1,711.00. With 8 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Universal OEM Grade Federal / EPA Compliant Catalytic Converter, Ultra EPA Direct-Fit Catalytic Converter – 2" Outlet (ID), and Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter start at just $194.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Catalytic Converter, don’t forget to check out other key components like Exhaust Manifold and Headers and Exhaust System Kits. At Advance Auto Parts, we’re here to help you keep your 2018 Buick Envision in peak condition, inside and out.

Essential 2018 Buick Envision Catalytic Converters

MagnaFlow – Universal California Grade CARB Compliant Catalytic Converter (Part No.5592305)

Universal California Grade CARB Compliant Catalytic Converter

from

$1135.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 5592305. 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:
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
  • Durable 308 stainless steel MIG welds
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
See More

Walker – Ultra EPA Direct Fit Catalytic Converter (Part No.14743)

Ultra EPA Direct Fit Catalytic Converter

from

$754.99
Designed to comply with EPA standards while delivering premium performance with assured compliance, Walker® Ultra® Direct-Fit Catalytic Converters provide premium performance and are available for import and domestic OBDII (1996 and newer) vehicles.

Product Features:
  • EPA COMPLIANT — For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA, CO or NY. Legal in ME on EPA Federal Emission Equipped Vehicles only. Consult your state’s aftermarket converter regulations for details.
  • DIRECT-FIT DESIGNá–áDirect-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installationáthatádoesn’t require specialized fabricationáand/or welding
  • KEEPS CHECK ENGINE LIGHT OFFáFOR EMISSIONS CODESá–áOE-style high-technologyáwashcoatáand optimaláprecious metal load delivers required reduction in tailpipe emissionsáto match vehicle application
  • STRONGáANDáDURABLEá–áFeatures thick OE-style flanges, hangersáandábrackets for strength andádurability
  • APPLICATION-ENGINEERED –áFeatures 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 structural integrity warranty
See More

MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.52889)

Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter

from

$489.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 52889. 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. MagnaFlow 52889 includes (1) Crush Ring Gasket, (1) Flange Gasket and interchanges with OE parts 12627204, 12633865, 12656263, 12656264, 19420231. 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:
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
See More

MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.280016)

Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter

from

$375.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 280016. 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 2017-2020 Buick Envision 2.5L. MagnaFlow 280016 includes (1) Torca Clamp, (2) Flange Gaskets and interchanges with OE parts 23334725, 84286809, 84450451. 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:
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
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

Dorman – Direct Fit Catalytic Converter: No Fabrication Needed, EPA Compliant (Part No.679-531)

Direct Fit Catalytic Converter: No Fabrication Needed, EPA Compliant

from

$979.99
This catalytic converter is precision-engineered to match the original equipment fit and function on specific vehicle years, makes and models for a reliable replacement.

Product Features:
  • Direct replacement – this catalytic converter is designed to match the fit and performance of the original equipment on specific vehicles
  • Durable construction – manufactured within strict tolerances for reliable longevity
  • Cost-effective solution – offers original equipment functionality at a competitive price
  • Trustworthy value – backed by team of engineers and quality control experts in the United States
See More

Walker – Ultra EPA Direct-Fit Catalytic Converter – 2" Outlet (ID) (Part No.16788)

Ultra EPA Direct-Fit Catalytic Converter - 2" Outlet (ID)

from

$504.99
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.
  • DIRECT-FIT DESIGN – Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn’t require specialized fabrication and welding
  • 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
  • STRONG AND DURABLE – Features thick OE-style flanges, hangers and brackets for strength and durability
  • 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.
See More

MagnaFlow – Universal California Grade CARB Compliant Catalytic Converter (Part No.5582405)

Universal California Grade CARB Compliant Catalytic Converter

from

$1711.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 5582405. 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:
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Durable 308 stainless steel MIG welds
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
See More

Most Popular Catalytic Converters for 2018 Buick Envisions

Enhance your 2018 Buick Envision with one of the 8 Catalytic Converters we have in stock, starting at just $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

MagnaFlow – Universal California Grade CARB Compliant Catalytic Converter (Part No.5582405)

Universal California Grade CARB Compliant Catalytic Converter

from

$1711.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 5582405. 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:
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Durable 308 stainless steel MIG welds
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
See More

MagnaFlow – Universal California Grade CARB Compliant Catalytic Converter (Part No.5592305)

Universal California Grade CARB Compliant Catalytic Converter

from

$1135.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 5592305. 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:
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
  • Durable 308 stainless steel MIG welds
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
See More

Dorman – Direct Fit Catalytic Converter: No Fabrication Needed, EPA Compliant (Part No.679-531)

Direct Fit Catalytic Converter: No Fabrication Needed, EPA Compliant

from

$979.99
This catalytic converter is precision-engineered to match the original equipment fit and function on specific vehicle years, makes and models for a reliable replacement.

Product Features:
  • Direct replacement – this catalytic converter is designed to match the fit and performance of the original equipment on specific vehicles
  • Durable construction – manufactured within strict tolerances for reliable longevity
  • Cost-effective solution – offers original equipment functionality at a competitive price
  • Trustworthy value – backed by team of engineers and quality control experts in the United States
See More

Walker – Ultra EPA Direct Fit Catalytic Converter (Part No.14743)

Ultra EPA Direct Fit Catalytic Converter

from

$754.99
Designed to comply with EPA standards while delivering premium performance with assured compliance, Walker® Ultra® Direct-Fit Catalytic Converters provide premium performance and are available for import and domestic OBDII (1996 and newer) vehicles.

Product Features:
  • EPA COMPLIANT — For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA, CO or NY. Legal in ME on EPA Federal Emission Equipped Vehicles only. Consult your state’s aftermarket converter regulations for details.
  • DIRECT-FIT DESIGNá–áDirect-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installationáthatádoesn’t require specialized fabricationáand/or welding
  • KEEPS CHECK ENGINE LIGHT OFFáFOR EMISSIONS CODESá–áOE-style high-technologyáwashcoatáand optimaláprecious metal load delivers required reduction in tailpipe emissionsáto match vehicle application
  • STRONGáANDáDURABLEá–áFeatures thick OE-style flanges, hangersáandábrackets for strength andádurability
  • APPLICATION-ENGINEERED –áFeatures 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 structural integrity warranty
See More

Walker – Ultra EPA Direct-Fit Catalytic Converter – 2" Outlet (ID) (Part No.16788)

Ultra EPA Direct-Fit Catalytic Converter - 2" Outlet (ID)

from

$504.99
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.
  • DIRECT-FIT DESIGN – Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn’t require specialized fabrication and welding
  • 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
  • STRONG AND DURABLE – Features thick OE-style flanges, hangers and brackets for strength and durability
  • 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.
See More

MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.52889)

Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter

from

$489.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 52889. 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. MagnaFlow 52889 includes (1) Crush Ring Gasket, (1) Flange Gasket and interchanges with OE parts 12627204, 12633865, 12656263, 12656264, 19420231. 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:
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
See More

MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter (Part No.280016)

Direct-Fit OEM Grade Federal / EPA Compliant Catalytic Converter

from

$375.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 280016. 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 2017-2020 Buick Envision 2.5L. MagnaFlow 280016 includes (1) Torca Clamp, (2) Flange Gaskets and interchanges with OE parts 23334725, 84286809, 84450451. 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:
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
See More

FAQs for 2018 Buick Envision Catalytic Converters

What are the best-selling Catalytic Converters for 2018 Buick Envisions?

Out of 8 Catalytic Converters that fit 2018 Buick Envisions, the following parts are the top sellers:

What’s the price range for 2018 Buick Envision Catalytic Converters?

The prices of Catalytic Converters for the 2018 Buick Envision range from $194.99 up to $1,711.00 for the most premium parts.

What is the average price of a Catalytic Converter for a 2018 Buick Envision?

The average price for Catalytic Converters for the 2018 Buick Envision is $499.17. Keep in mind the variety of part types within our Catalytic Converter category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Catalytic Converters for other Buick Envision model years?

Yes, we carry Catalytic Converters for 3 model years of Buick Envisions between 2016 and 2020. The following model years are the most popular for Catalytic Converter purchases: 2020, 2019, 2017, and 2016.

What are the cheapest Catalytic Converters for my 2018 Buick Envision?

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

Yes. We stock Catalytic Converters for 1 other popular 2018 Buick models. Some of the most popular are 2018 Enclave Catalytic Converters and 2018 Encore Catalytic Converters.

What types of Catalytic Converters do you sell for my 2018 Buick Envision?

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

Can I get help with 2018 Buick Envision Catalytic Converter orders?

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

What is your return policy for Buick Envision Catalytic Converters?

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