2004 Ford Focus Catalytic Converters

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Keep Your 2004 Ford Focus 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 2004 Ford Focus looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Catalytic Converter Gaskets and 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 $5.49 with an average 4.2 star rating. MagnaFlow offer similar pricing and quality, backed by strong customer feedback. With over 455 reviews and a solid 3.6 star average, you can shop with confidence knowing other Ford Focus owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2004 Ford Focus Catalytic Converter at Advance Auto Parts is around $415.71, with a range that starts at $5.49 and goes up to $1,606.00. With 30 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Walker Exhaust Pipe Flange Gasket, 31337, "Walker Ultra EPA Universal Catalytic Converter – 2.5"" Inlet (ID) 2.5"" Outlet (ID), 93238", and "Walker Ultra EPA Universal Catalytic Converter 2.25"" Inlet (ID) 2.25"" Outlet (ID), 93202" start at just $5.49 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 2004 Ford Focus in peak condition, inside and out.

Essential 2004 Ford Focus Catalytic Converters

MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 21-715 (Part No.21-715)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 21-715

from

$781.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-715. 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 2015-2018 Ford Focus 1.0L. MagnaFlow 21-715 includes (2) Nuts, (2) Bolts, (1) Flange Gasket and interchanges with OE parts F1FZ-5E212-A. 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.
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MagnaFlow – MagnaFlow California Grade Carb Compliant Direct-Fit Catalytic Converter, 4561011 (Part No.4561011)

MagnaFlow California Grade Carb Compliant Direct-Fit Catalytic Converter, 4561011

from

$1606.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4561011. 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 2002-2004 Ford Focus 2.0L. MagnaFlow 4561011 includes (2) Flange Gaskets and interchanges with OE parts YS4Z-5E212-CA. 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.
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MagnaFlow – MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 441404 (Part No.441404)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 441404

from

$631.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 441404. 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.
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Walker – Walker CalCat CARB Direct Fit Catalytic Converter with Integrated Exhaust Manifold, 84586 (Part No.84586)

Walker CalCat CARB Direct Fit Catalytic Converter with Integrated Exhaust Manifold, 84586

from

$1697.00
Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat manifold catalytic converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles. Engineered for a precise OE style fit, they feature an optimal high technology washcoat formulated for superior performance.
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Dorman – Dorman Manifold Converter – CARB Compliant, 672-894 (Part No.672-894)

Dorman Manifold Converter - CARB Compliant, 672-894

from

$1878.00
This catalytic converter with integrated exhaust manifold – a.k.a. manifold converter – is precision-engineered to match the original equipment on specific vehicle years, makes and models for a reliable replacement.
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Walker – "Walker CalCat CARB Universal Catalytic Converter 2.25"" Inlet (ID) 2.25"" Outlet (ID), 84205" (Part No.84205)

"Walker CalCat CARB Universal Catalytic Converter 2.25"" Inlet (ID) 2.25"" Outlet (ID), 84205"

from

$229.99
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. Walker CalCat catalytic converters are thoroughly tested to ensure they meet CARB performance requirements.
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MagnaFlow – MagnaFlow California Grade Carb Compliant Direct-Fit Catalytic Converter, 5561633 (Part No.5561633)

MagnaFlow California Grade Carb Compliant Direct-Fit Catalytic Converter, 5561633

from

$2281.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5561633. 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 2013-2018 Ford Focus 2.0L. MagnaFlow 5561633 includes (4) Bolts, (1) Flange Gasket. 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.
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MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 49005 (Part No.49005)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 49005

from

$464.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49005. 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 2000-2004 Ford Focus 2.0L. MagnaFlow 49005 includes (2) Flange Gaskets and interchanges with OE parts YS4Z-5E212-CA. 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.
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MagnaFlow – MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 456055 (Part No.456055)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 456055

from

$931.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 456055. 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.
See More

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

MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51004

from

$252.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51004. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion welds greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
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MagnaFlow – MagnaFlow Hm Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 25201 (Part No.25201)

MagnaFlow Hm Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 25201

from

$361.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 25201. 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 2000-2004 Ford Focus 2.0L. MagnaFlow 25201 includes (1) Flange Gasket, (1) Flat Ring Gasket and interchanges with OE parts YS4Z-5E212-AA, YS4Z-5E212-GA. 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.
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MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51204 (Part No.51204)

MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51204

from

$213.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51204. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion welds greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
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Walker – "Walker CalCat CARB Universal Catalytic Converter 2.25"" Inlet (ID) 2.25"" Outlet (ID), 84406" (Part No.84406)

"Walker CalCat CARB Universal Catalytic Converter 2.25"" Inlet (ID) 2.25"" Outlet (ID), 84406"

from

$361.99
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. Walker CalCat catalytic converters are thoroughly tested to ensure they meet CARB performance requirements.
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MagnaFlow – MagnaFlow California Grade Carb Compliant Direct-Fit Manifold Catalytic Converter, 5531052 (Part No.5531052)

MagnaFlow California Grade Carb Compliant Direct-Fit Manifold Catalytic Converter, 5531052

from

$1104.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Manifold Catalytic Converter 5531052. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Manifold Catalytic Converter is designed to fit the 2008-2009 Ford Focus 2.0L. MagnaFlow 5531052 includes (2) Flange Gaskets and interchanges with OE parts 8S4Z-5G232-C. 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.
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Walker – Walker Exhaust Pipe Flange Gasket, 31337 (Part No.31337)

Walker Exhaust Pipe Flange Gasket, 31337

from

$5.49
Complete your exhaust repair with Walker gaskets and flanges. Built from quality materials for long lasting durability, they’re available in a range of styles and sizes. Each component is designed to work seamlessly with OE exhaust systems and Walker aftermarket replacement parts.
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Walker – Walker Exhaust Pipe Flange Gasket, 31512 (Part No.31512)

Walker Exhaust Pipe Flange Gasket, 31512

from

$6.39
Complete your exhaust repair with Walker gaskets and flanges. Built from quality materials for long lasting durability, they’re available in a range of styles and sizes. Each component is designed to work seamlessly with OE exhaust systems and Walker aftermarket replacement parts.
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Most Popular Catalytic Converter Gasket for 2004 Ford Foci

Enhance your 2004 Ford Focus with this popular Catalytic Converter Gasket we have in stock, for $5.49.

Walker – Walker Exhaust Pipe Flange Gasket, 31337 (Part No.31337)

Walker Exhaust Pipe Flange Gasket, 31337

from

$5.49
Complete your exhaust repair with Walker gaskets and flanges. Built from quality materials for long lasting durability, they’re available in a range of styles and sizes. Each component is designed to work seamlessly with OE exhaust systems and Walker aftermarket replacement parts.
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Best-Selling 2004 Ford Focus Catalytic Converters

Upgrade your Focus with one of our 29 best-selling Catalytic Converters, earning an average 3.29 stars rating across 31 reviews.

Walker – "Walker Ultra EPA Direct Fit Catalytic Converter 2"" Outlet (ID) 2"" Outlet (OD), 53555" (Part No.53555)

"Walker Ultra EPA Direct Fit Catalytic Converter 2"" Outlet (ID) 2"" Outlet (OD), 53555"

from

$459.99
Designed to comply with EPA standards while delivering premium performance with assured compliance, Walker Ultra direct-fit catalytic converters are available for import and domestic OBDII (1996 and newer) vehicles. Count on Walker Ultra converters for industry-leading fit and function.
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MagnaFlow – MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99006HM (Part No.99006HM)

MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99006HM

from

$242.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99006HM. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
See More

MagnaFlow – MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99204HM (Part No.99204HM)

MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99204HM

from

$196.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99204HM. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
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Walker – "Walker Ultra EPA Universal Catalytic Converter – 2.5"" Inlet (ID) 2.5"" Outlet (ID), 93238" (Part No.93238)

"Walker Ultra EPA Universal Catalytic Converter - 2.5"" Inlet (ID) 2.5"" Outlet (ID), 93238"

from

$244.99
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.
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MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51006 (Part No.51006)

MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51006

from

$252.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51006. 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.
See More

MagnaFlow – MagnaFlow Hm Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 25201 (Part No.25201)

MagnaFlow Hm Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 25201

from

$361.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 25201. 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 2000-2004 Ford Focus 2.0L. MagnaFlow 25201 includes (1) Flange Gasket, (1) Flat Ring Gasket and interchanges with OE parts YS4Z-5E212-AA, YS4Z-5E212-GA. 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.
See More

Walker – "Walker Ultra EPA Universal Catalytic Converter 2.25"" Inlet (ID) 2.25"" Outlet (ID), 93202" (Part No.93202)

"Walker Ultra EPA Universal Catalytic Converter 2.25"" Inlet (ID) 2.25"" Outlet (ID), 93202"

from

$197.99
Designed to meet EPA emissions requirements while delivering premium performance and durability, Walker Ultra universal catalytic converters fit import and domestic OBDII (1996 and newer) vehicles. Each converter features an OE style high technology washcoat with an optimal precious metal load for assured compliance.
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MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51355 (Part No.51355)

MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51355

from

$223.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51355. 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.
See More

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

MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99004HM

from

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

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

MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51004

from

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

MagnaFlow – MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99355HM (Part No.99355HM)

MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99355HM

from

$204.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99355HM. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
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Walker – Walker Ultra EPA Direct Fit Catalytic Converter Overall Length 17.750 IN, 52280 (Part No.52280)

Walker Ultra EPA Direct Fit Catalytic Converter Overall Length 17.750 IN, 52280

from

$717.99
Designed to comply with EPA standards while delivering premium performance with assured compliance, Walker Ultra direct-fit catalytic converters are available for import and domestic OBDII (1996 and newer) vehicles. Count on Walker Ultra converters for industry-leading fit and function.
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MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51204 (Part No.51204)

MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51204

from

$213.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51204. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion welds greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
See More

MagnaFlow – MagnaFlow California Grade Carb Compliant Direct-Fit Catalytic Converter, 4561011 (Part No.4561011)

MagnaFlow California Grade Carb Compliant Direct-Fit Catalytic Converter, 4561011

from

$1606.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4561011. 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 2002-2004 Ford Focus 2.0L. MagnaFlow 4561011 includes (2) Flange Gaskets and interchanges with OE parts YS4Z-5E212-CA. 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.
See More

MagnaFlow – MagnaFlow California Grade Carb Compliant Direct-Fit Catalytic Converter, 4561021 (Part No.4561021)

MagnaFlow California Grade Carb Compliant Direct-Fit Catalytic Converter, 4561021

from

$1165.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4561021. 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 2002-2004 Ford Focus 2.0L. MagnaFlow 4561021 includes (1) Torca Clamp, (1) Flange Gasket, (1) Flat Ring Gasket. 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.
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Walker – Walker CalCat Catalytic Converter- CARB Certified, Direct Replacement, No Fabrication Needed, 82669 (Part No.82669)

Walker CalCat Catalytic Converter- CARB Certified, Direct Replacement, No Fabrication Needed, 82669

from

$1089.99
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.
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MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Manifold Catalytic Converter, 49375 (Part No.49375)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Manifold Catalytic Converter, 49375

from

$948.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 49375. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Manifold Catalytic Converter is designed to fit the 2003-2004 Ford Focus 2.3L. MagnaFlow 49375 includes (1) Flange Gasket, (1) Crush Ring Gasket and interchanges with OE parts 3S4Z-5G232-CD, 4S4Z-5G232-CB. 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.
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MagnaFlow – MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 456055 (Part No.456055)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 456055

from

$931.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 456055. 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.
See More

MagnaFlow – MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter, 5671196 (Part No.5671196)

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter, 5671196

from

$683.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5671196. 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 2003-2004 Ford Focus 2.3L & 2005-2011 Ford Focus 2.0L. MagnaFlow 5671196 includes (1) Flat Ring Gasket. 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.
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MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 52298 (Part No.52298)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 52298

from

$682.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 52298. 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 2002-2004 Ford Focus 2.0L. MagnaFlow 52298 includes (5) Nuts, (5) Bolts, (1) Flange Gasket and interchanges with OE parts 2M5Z-5E212-AA, 2M5Z-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.
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MagnaFlow – MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 5671404 (Part No.5671404)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 5671404

from

$519.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 5671404. 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.
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MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 49005 (Part No.49005)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 49005

from

$464.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49005. 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 2000-2004 Ford Focus 2.0L. MagnaFlow 49005 includes (2) Flange Gaskets and interchanges with OE parts YS4Z-5E212-CA. 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.
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MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 49196 (Part No.49196)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 49196

from

$378.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49196. 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 2003-2007 Ford Focus 2.3L & 2005-2011 Ford Focus 2.0L. MagnaFlow 49196 includes (1) Flat Ring Gasket and interchanges with OE parts AS4Z-5E212-C. 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.
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MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 49230 (Part No.49230)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 49230

from

$377.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49230. 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 2000-2004 Ford Focus 2.0L. MagnaFlow 49230 includes (1) Flange Gasket, (1) Flat Ring Gasket and interchanges with OE parts YS4Z-5E212-AA, YS4Z-5E212-GA. 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.
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Walker – Walker Ultra EPA Direct Fit Catalytic Converter Overall Length 23.000 IN, 14640 (Part No.14640)

Walker Ultra EPA Direct Fit Catalytic Converter Overall Length 23.000 IN, 14640

from

$367.99
Designed to comply with EPA standards while delivering premium performance with assured compliance, Walker Ultra direct-fit catalytic converters are available for import and domestic OBDII (1996 and newer) vehicles. Count on Walker Ultra converters for industry-leading fit and function.
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MagnaFlow – MagnaFlow Hm Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 23972 (Part No.23972)

MagnaFlow Hm Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 23972

from

$361.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 23972. 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 2003-2007 Ford Focus 2.3L & 2005-2011 Ford Focus 2.0L. MagnaFlow 23972 includes (1) Flat Ring Gasket and interchanges with OE parts 3S4Z-5E212-AE, 3S4Z-5E212-AF, 5S4Z-5E212-CA. 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.
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MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51234 (Part No.51234)

MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51234

from

$216.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51234. 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.
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MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51105 (Part No.51105)

MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51105

from

$188.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51105. 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.
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MagnaFlow – MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99105HM (Part No.99105HM)

MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99105HM

from

$185.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99105HM. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
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Top-Rated Catalytic Converter Brands For Your 2004 Ford Focus

When it comes to finding the perfect Catalytic Converter for your 2004 Ford Focus, 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 $5.49. Purchasing a Catalytic Converter from us here at Advance Auto Parts is a smart move for both you and your 2004 Ford Focus, providing peace of mind with parts that meet or exceed OEM standards.

Popular Walker 2004 Ford Focus Catalytic Converters

If you’re looking for a top-quality Catalytic Converter for your 2004 Ford Focus, Advance Auto Parts has exactly what you need with our selection of Walker Catalytic Converters. We have 2 Walker Catalytic Converters in stock for this fitment, all known for their durability and precision fit. With prices starting at just $5.49 and an average cost of $232.74, you’ll find the perfect Catalytic Converter for your needs and budget. Walker Catalytic Converters for the 2004 Ford Focus come highly rated, with over 24 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.
"Walker Ultra EPA Direct Fit Catalytic Converter 2"" Outlet (ID) 2"" Outlet (OD), 53555"
from $459.99
(1)
"Walker Ultra EPA Direct Fit Catalytic Converter 2"" Outlet (ID) 2"" Outlet (OD), 53555"
“Good price and like the ability to get discount”
Walker Exhaust Pipe Flange Gasket, 31337
from $5.49
(23)
Walker Exhaust Pipe Flange Gasket, 31337
“Right part”

Top-Quality MagnaFlow 2004 Ford Focus Catalytic Converters

For those in search of a high-quality Catalytic Converter for their 2004 Ford Focus, 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 $242.99, giving you a range of options to suit your budget. Backed by over 14 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.
MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99006HM
from $242.99
(14)
MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99006HM
“Nearly as fast as going down to their store…free shipping. I won’t be shopping anywhere else for auto parts…Advance Auto Parts is “my store””

FAQs for 2004 Ford Focus Catalytic Converters

What are the best-selling Catalytic Converters for 2004 Ford Foci?

Out of 30 Catalytic Converters that fit 2004 Ford Foci, the following parts are the top sellers:

What’s the price range for 2004 Ford Focus Catalytic Converters?

The prices of Catalytic Converters for the 2004 Ford Focus range from $5.49 up to $1,606.00 for the most premium parts.

What is the average price of a Catalytic Converter for a 2004 Ford Focus?

The average price for Catalytic Converters for the 2004 Ford Focus is $415.71. 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 Ford Focus model years?

Yes, we carry Catalytic Converters for 17 model years of Ford Foci between 2000 and 2018. The following model years are the most popular for Catalytic Converter purchases: 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, and 2010.

Does Advance Auto Parts sell Catalytic Converters for any other 2004 Ford models?

What are the top-rated Catalytic Converters that fit the 2004 Ford Focus?

Based on 455 reviews by customers, our 2004 Ford Focus Catalytic Converters have an average customer rating of 3.6 stars. These are the highest-rated categories of Catalytic Converters for the 2004 Ford Focus and their top-rated products:

What types of Catalytic Converters do you sell for my 2004 Ford Focus?

As of 8/2/26, these are some of the most in-demand types of Catalytic Converters for a 2004 Ford Focus:

Can I get help with 2004 Ford Focus Catalytic Converter orders?

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

What is your return policy for Ford Focus Catalytic Converters?

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