2005 Mercury Mountaineer Catalytic Converters

Keep Your 2005 Mercury Mountaineer 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 2005 Mercury Mountaineer 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.

Top-Rated Catalytic Converters from Trusted Brands

Looking for a reliable Catalytic Converter? We’ve got you covered with options from brands you know and trust like Walker and Magnaflow. For example, Walker Catalytic Converters start at just $179.99 with an average 4.2 star rating. Magnaflow offer similar pricing and quality, backed by strong customer feedback. With over 96 reviews and a solid 4 star average, you can shop with confidence knowing other Mercury Mountaineer owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2005 Mercury Mountaineer Catalytic Converter at Advance Auto Parts is around $703.05, with a range that starts at $178.99 and goes up to $1,748.99. With 20 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like HM Grade Federal / EPA Compliant Universal Catalytic Converter, OEM Grade Federal / EPA Compliant Universal Catalytic Converter, and Ultra EPA Universal Catalytic Converter 2" Inlet (ID) 2" Outlet (ID) start at just $178.99 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 Mufflers. At Advance Auto Parts, we’re here to help you keep your 2005 Mercury Mountaineer in peak condition, inside and out.

Essential 2005 Mercury Mountaineer Catalytic Converters

MagnaFlow – HM Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.99354HM)

HM Grade Federal / EPA Compliant Universal Catalytic Converter

from

$189.99
MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99354HM helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

Walker – Ultra EPA Universal Catalytic Converter 2" Inlet (ID) 2" Outlet (ID) (Part No.93270)

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

from

$309.99
Designed to comply with EPA emissions requirements while delivering premium performance and durability with assured compliance, Walker Ultra Universal Catalytic Converters 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 & 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 washcoat 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/or 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
See More

Walker – Catalytic Converter- EPA Ultra, Direct Replacement, No Fabrication Needed (Part No.16139)

Catalytic Converter- EPA Ultra, Direct Replacement, No Fabrication Needed

from

$1194.99
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 & 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/or welding
  • KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES — OE-style high-technology washcoat 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
See More

Walker – Ultra EPA Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID) (Part No.93302)

Ultra EPA Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID)

from

$328.99
Designed to comply with EPA emissions requirements while delivering premium performance and durability with assured compliance, Walker Ultra Universal Catalytic Converters 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 & 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 washcoat 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/or 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
See More

MagnaFlow – OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.51088)

OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$877.99
MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51088 helps keep the check engine light off. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. Designed to fit the 1999-2001 Ford Explorer and 1999-2001 Mercury Mountaineer, this direct-fit catalytic converter also interchanges with OE part XL2Z-5E212-AB. 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.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

Walker – CalCat CARB Direct Fit Catalytic Converter 2.245" Outlet (OD) (Part No.83445)

CalCat CARB Direct Fit Catalytic Converter 2.245" Outlet (OD)

from

$1660.99
Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Direct-Fit Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles and delivers a precise OE-style fit.

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.
  • 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.
  • 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 or welding
  • SUPERIOR TECHNOLOGY — Optimal high technology washcoat 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
  • STRONG AND DURABLE — Features thick OE-style flanges, hangers and brackets for strength and stainless-steel body with aluminized pipe and heat shields for durability
See More

MagnaFlow – OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.49404)

OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$1252.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49404. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body 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 spun body 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. Designed to fit the 2002-2005 Ford Explorer, 2003-2005 Lincoln Aviator, and more, this direct-fit catalytic converter also interchanges with OE parts 2L2Z-5F250-EA and 1L2Z-5F250-BA, among others. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. 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.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – OEM Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.51354)

OEM Grade Federal / EPA Compliant Universal Catalytic Converter

from

$202.99
MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51354 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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 formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – OEM Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.51356)

OEM Grade Federal / EPA Compliant Universal Catalytic Converter

from

$202.99
MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51356 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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 formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – California Grade CARB Compliant Universal Catalytic Converter (Part No.5491306)

California Grade CARB Compliant Universal Catalytic Converter

from

$641.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 5491306. The Universal design allows the part to fit a wide array of vehicles (cutting and welding required), and the stainless steel construction of this spun body catalytic converter is highly resistant to corrosion. The single laser fusion weld of the spun body 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:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

Walker – CalCat Catalytic Converter- CARB Certified, Direct Replacement, No Fabrication Needed (Part No.82260)

CalCat Catalytic Converter- CARB Certified, Direct Replacement, No Fabrication Needed

from

$914.99
Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Direct-Fit Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles and delivers a precise OE-style fit.

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.
  • 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 or welding
  • SUPERIOR TECHNOLOGY — Optimal high technology washcoat 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
  • STRONG AND DURABLE — Features thick OE-style flanges, hangers and brackets for strength and stainless-steel body with aluminized pipe and heat shields for durability
See More

MagnaFlow – HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.93404)

HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$780.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 93404. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body 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 spun body 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. Designed to fit the 2006-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac, and more, this direct-fit catalytic converter also interchanges with OE parts 8L2Z-5F250-A and 6L2Z-5F250-A, among others. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. 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:
  • 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.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.93104)

HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$592.99
MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 93104 helps keep the check engine light off. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. Designed to fit the 2001-2005 Ford Explorer Sport Trac, 2000-2001 Ford Explorer, and more, this direct-fit catalytic converter also interchanges with OE part 1L2Z-5F250-AB. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. 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:
  • 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.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – HM Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.99206HM)

HM Grade Federal / EPA Compliant Universal Catalytic Converter

from

$178.99
MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99206HM helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

Walker – Ultra EPA Direct Fit Catalytic Converter 2.5" Inlet (ID) (Part No.53274)

Ultra EPA Direct Fit Catalytic Converter 2.5" Inlet (ID)

from

$579.99
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 & 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/or welding
  • KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES — OE-style high-technology washcoat 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
See More

Walker – Ultra EPA Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID) (Part No.93271)

Ultra EPA Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID)

from

$239.99
Designed to comply with EPA emissions requirements while delivering premium performance and durability with assured compliance, Walker Ultra Universal Catalytic Converters 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 & 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 washcoat 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/or 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
See More

Walker – CalCat CARB Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID) (Part No.81723)

CalCat CARB Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID)

from

$892.99
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 washcoat 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
See More

MagnaFlow – HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.23314)

HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$504.99
MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 23314 helps keep the check engine light off. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. Designed to fit the 1997-2001 Ford Explorer and 1998-2001 Mercury Mountaineer, this direct-fit catalytic converter also interchanges with OE part F77Z-5E212-CE. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. 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:
  • 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.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – OEM Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.51204)

OEM Grade Federal / EPA Compliant Universal Catalytic Converter

from

$194.99
MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51204 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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 formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – California Grade CARB Compliant Universal Catalytic Converter (Part No.447205)

California Grade CARB Compliant Universal Catalytic Converter

from

$390.99
MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 447205 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

Walker – Ultra EPA Direct Fit Catalytic Converter 2.875" Inlet (ID) (Part No.16429)

Ultra EPA Direct Fit Catalytic Converter 2.875" Inlet (ID)

from

$824.99
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 & 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/or welding
  • KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES — OE-style high-technology washcoat 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
See More

MagnaFlow – California Grade CARB Compliant Direct-Fit Catalytic Converter (Part No.447119)

California Grade CARB Compliant Direct-Fit Catalytic Converter

from

$747.99
MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 447119 helps keep the check engine light off. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. Designed to fit the 1999-2001 Ford Explorer and 1999-2001 Mercury Mountaineer, this direct-fit catalytic converter also interchanges with OE part XL2Z-5E212-AB. 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:
  • 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.
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – California Grade CARB Compliant Universal Catalytic Converter (Part No.5551356)

California Grade CARB Compliant Universal Catalytic Converter

from

$1253.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 5551356. The Universal design allows the part to fit a wide array of vehicles (cutting and welding required), and the stainless steel construction of this spun body catalytic converter is highly resistant to corrosion. The single laser fusion weld of the spun body 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:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – California Grade CARB Compliant Direct-Fit Catalytic Converter (Part No.447201)

California Grade CARB Compliant Direct-Fit Catalytic Converter

from

$746.99
MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 447201 helps keep the check engine light off. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. This direct-fit catalytic converter is designed to fit the 1996-1998 Ford Explorer and 1997-1998 Mercury Mountaineer. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. 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:
  • 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.
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

Walker – CalCat CARB Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID) (Part No.81722)

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

from

$846.99
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.
  • 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 washcoat 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
See More

Walker – Ultra EPA Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID) (Part No.93237)

Ultra EPA Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID)

from

$224.99
Designed to comply with EPA emissions requirements while delivering premium performance and durability with assured compliance, Walker Ultra Universal Catalytic Converters 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 & 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 washcoat 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/or 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
See More

MagnaFlow – HM Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.99356HM)

HM Grade Federal / EPA Compliant Universal Catalytic Converter

from

$189.99
MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99356HM helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

Walker – CalCat CARB Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID) (Part No.83518)

CalCat CARB Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID)

from

$993.99
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.
  • 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 washcoat 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
See More

Most Popular Catalytic Converters for 2005 Mercury Mountaineers

Enhance your 2005 Mercury Mountaineer with one of the 20 Catalytic Converters we have in stock, starting at just $178.99.

Walker – Ultra EPA Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID) (Part No.93302)

Ultra EPA Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID)

from

$328.99
Designed to comply with EPA emissions requirements while delivering premium performance and durability with assured compliance, Walker Ultra Universal Catalytic Converters 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 & 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 washcoat 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/or 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
See More

Walker – Ultra EPA Direct Fit Catalytic Converter 2.5" Inlet (ID) (Part No.50545)

Ultra EPA Direct Fit Catalytic Converter 2.5" Inlet (ID)

from

$874.99
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 & 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/or welding
  • KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES — OE-style high-technology washcoat 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
See More

Walker – Ultra EPA Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID) (Part No.93253)

Ultra EPA Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID)

from

$179.99
Designed to comply with EPA emissions requirements while delivering premium performance and durability with assured compliance, Walker Ultra Universal Catalytic Converters 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 & 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 washcoat 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/or 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
See More

MagnaFlow – HM Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.99205HM)

HM Grade Federal / EPA Compliant Universal Catalytic Converter

from

$178.99
MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99205HM helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – OEM Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.51206)

OEM Grade Federal / EPA Compliant Universal Catalytic Converter

from

$194.99
MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51206 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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 formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

Walker – Ultra EPA Universal Catalytic Converter 2" Inlet (ID) 2" Outlet (ID) (Part No.93270)

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

from

$309.99
Designed to comply with EPA emissions requirements while delivering premium performance and durability with assured compliance, Walker Ultra Universal Catalytic Converters 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 & 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 washcoat 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/or 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
See More

MagnaFlow – HM Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.99206HM)

HM Grade Federal / EPA Compliant Universal Catalytic Converter

from

$178.99
MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99206HM helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

Walker – Catalytic Converter- EPA Ultra, Direct Replacement, No Fabrication Needed (Part No.16139)

Catalytic Converter- EPA Ultra, Direct Replacement, No Fabrication Needed

from

$1194.99
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 & 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/or welding
  • KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES — OE-style high-technology washcoat 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
See More

Walker – CalCat CARB Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID) (Part No.83402)

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

from

$437.99
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 washcoat 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
See More

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

OEM Grade Federal / EPA Compliant Universal Catalytic Converter

from

$194.99
MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51205 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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 formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – California Grade CARB Compliant Direct-Fit Catalytic Converter (Part No.458030)

California Grade CARB Compliant Direct-Fit Catalytic Converter

from

$1748.99
MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 458030 helps keep the check engine light off. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. This direct-fit catalytic converter is designed to fit the 2004-2005 Ford Explorer and 2004-2005 Mercury Mountaineer. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. 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:
  • 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.
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

Walker – CalCat CARB Direct Fit Catalytic Converter 2.245" Outlet (OD) (Part No.83445)

CalCat CARB Direct Fit Catalytic Converter 2.245" Outlet (OD)

from

$1660.99
Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Direct-Fit Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles and delivers a precise OE-style fit.

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.
  • 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.
  • 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 or welding
  • SUPERIOR TECHNOLOGY — Optimal high technology washcoat 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
  • STRONG AND DURABLE — Features thick OE-style flanges, hangers and brackets for strength and stainless-steel body with aluminized pipe and heat shields for durability
See More

MagnaFlow – OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.49404)

OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$1252.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49404. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body 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 spun body 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. Designed to fit the 2002-2005 Ford Explorer, 2003-2005 Lincoln Aviator, and more, this direct-fit catalytic converter also interchanges with OE parts 2L2Z-5F250-EA and 1L2Z-5F250-BA, among others. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. 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.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.93108)

HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$1193.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 93108. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body 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 spun body 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. Designed to fit the 2002-2005 Ford Explorer, 2003-2005 Lincoln Aviator, and more, this direct-fit catalytic converter also interchanges with OE part 2C5Z-5F250-AA. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. 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:
  • 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.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.49406)

OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$891.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49406. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body 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 spun body 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. Designed to fit the 2004-2005 Ford Explorer and 2004-2005 Mercury Mountaineer, this direct-fit catalytic converter also interchanges with OE part 4L2Z-5F250-FA. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. 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.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.93111)

HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$848.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 93111. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body 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 spun body 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. Designed to fit the 2004-2005 Ford Explorer and 2004-2005 Mercury Mountaineer, this direct-fit catalytic converter also interchanges with OE part 4L2Z-5F250-FA. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. 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:
  • 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.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – California Grade CARB Compliant Universal Catalytic Converter (Part No.5481306)

California Grade CARB Compliant Universal Catalytic Converter

from

$729.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 5481306. The Universal design allows the part to fit a wide array of vehicles (cutting and welding required), and the stainless steel construction of this spun body catalytic converter is highly resistant to corrosion. The single laser fusion weld of the spun body 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:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – California Grade CARB Compliant Universal Catalytic Converter (Part No.5491306)

California Grade CARB Compliant Universal Catalytic Converter

from

$641.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 5491306. The Universal design allows the part to fit a wide array of vehicles (cutting and welding required), and the stainless steel construction of this spun body catalytic converter is highly resistant to corrosion. The single laser fusion weld of the spun body 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:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – California Grade CARB Compliant Universal Catalytic Converter (Part No.459056)

California Grade CARB Compliant Universal Catalytic Converter

from

$565.99
MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 459056 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – California Grade CARB Compliant Universal Catalytic Converter (Part No.458076)

California Grade CARB Compliant Universal Catalytic Converter

from

$421.99
MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 458076 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. 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:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

Top-Rated Catalytic Converter Brands For Your 2005 Mercury Mountaineer

When it comes to finding the perfect Catalytic Converter for your 2005 Mercury Mountaineer, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 2 trusted brands. We carry the most popular Catalytic Converter brands including Walker and Magnaflow, and more, all known for their exceptional customer ratings (average brand rating of 4.2 stars) and competitive prices, as low as $178.99. Purchasing a Catalytic Converter from us here at Advance Auto Parts is a smart move for both you and your 2005 Mercury Mountaineer, providing peace of mind with parts that meet or exceed OEM standards.

Popular Walker 2005 Mercury Mountaineer Catalytic Converters

If you’re looking for a top-quality Catalytic Converter for your 2005 Mercury Mountaineer, Advance Auto Parts has exactly what you need with our selection of Walker Catalytic Converters. We have 3 Walker Catalytic Converters in stock for this fitment, all known for their durability and precision fit. With prices starting at just $179.99 and an average cost of $461.32, you’ll find the perfect Catalytic Converter for your needs and budget. Walker Catalytic Converters for the 2005 Mercury Mountaineer come highly rated, with over 17 customer reviews and an impressive average rating of 4.2 stars. Choosing a Walker Catalytic Converter from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Ultra EPA Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID)
from $328.99
(3)
Ultra EPA Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID)
“Just installed, seems fine”
Ultra EPA Direct Fit Catalytic Converter 2.5" Inlet (ID)
from $874.99
(2)
Ultra EPA Direct Fit Catalytic Converter 2.5" Inlet (ID)
“I couldn’t be more happier buying this product. I researched for a long time. I am very happy with my decision.”
Ultra EPA Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID)
from $179.99
(12)
Ultra EPA Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID)
“Good product but very little room for error when cutting off old catalytic converter and matching up to new.”

Top-Quality Magnaflow 2005 Mercury Mountaineer Catalytic Converters

For those in search of a high-quality Catalytic Converter for their 2005 Mercury Mountaineer, Advance Auto Parts offers a great selection of Magnaflow Catalytic Converters. With 1 Magnaflow Catalytic Converters in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Catalytic Converters start at just $178.99, giving you a range of options to suit your budget. Backed by over 5 customer ratings and an average rating of 4.1 stars, Magnaflow Catalytic Converters provide both reliability and excellent performance. Choosing a Magnaflow Catalytic Converter from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
HM Grade Federal / EPA Compliant Universal Catalytic Converter
from $178.99
(5)
HM Grade Federal / EPA Compliant Universal Catalytic Converter
“needs to be cut to fit my application but worked great”

FAQs for 2005 Mercury Mountaineer Catalytic Converters

What are the best-selling Catalytic Converters for 2005 Mercury Mountaineers?

Out of 20 Catalytic Converters that fit 2005 Mercury Mountaineers, the following parts are the top sellers:

What’s the price range for 2005 Mercury Mountaineer Catalytic Converters?

The prices of Catalytic Converters for the 2005 Mercury Mountaineer range from $178.99 up to $1,748.99 for the most premium parts.

What is the average price of a Catalytic Converters Catalytic Converter for a 2005 Mercury Mountaineer?

The average price for Catalytic Converters for the 2005 Mercury Mountaineer is $703.05. 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 Mercury Mountaineer model years?

Yes, we carry Catalytic Converters for 12 model years of Mercury Mountaineers between 1997 and 2010. The following model years are the most popular for Catalytic Converter purchases: 2010, 2009, 2008, 2007, 2006, 2004, 2003, 2002, and 2001.

What are the cheapest Catalytic Converters for my 2005 Mercury Mountaineer?

Does Advance Auto Parts sell Catalytic Converters for any other 2005 Mercury models?

Yes. We stock Catalytic Converters for 3 other popular 2005 Mercury models. Some of the most popular are 2005 Grand Marquis Catalytic Converters, 2005 Monterey Catalytic Converters, 2005 Montego Catalytic Converters, and 2005 Mariner Catalytic Converters.

What are the top-rated Catalytic Converters that fit the 2005 Mercury Mountaineer?

The one 2005 Mercury Mountaineer Catalytic Converter we have in stock is the HM Grade Federal / EPA Compliant Universal Catalytic Converter. It is rated 4 stars and costs $178.99.

What types of Catalytic Converters do you sell for my 2005 Mercury Mountaineer?

We currently have just 1 Catalytic Converter in stock for a 2005 Mercury Mountaineer, and as of 4/10/25, it is a Catalytic Converter.

Can I get help with 2005 Mercury Mountaineer Catalytic Converter orders?

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

What is your return policy for Mercury Mountaineer Catalytic Converters?

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