2005 Mazda 6 Catalytic Converters

Please Select your Vehicle to See Exact Fit Parts

Keep Your 2005 Mazda 6 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 Mazda 6 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Catalytic Converters and Catalytic Converter Gaskets. 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. For example, Walker Catalytic Converters start at just $7.69 with an average 4.2 star rating. With over 74 reviews and a solid 3.6 star average, you can shop with confidence knowing other Mazda 6 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2005 Mazda 6 Catalytic Converter at Advance Auto Parts is around $417.10, with a range that starts at $4.99 and goes up to $1,047.00. With 25 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like "Walker Ultra EPA Universal Catalytic Converter 2"" Inlet (ID) 2"" Outlet (ID), 93201", MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51356, and MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99004HM start at just $194.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Catalytic Converter, don’t forget to check out other key components like Exhaust Manifold and Headers and Exhaust Mufflers. At Advance Auto Parts, we’re here to help you keep your 2005 Mazda 6 in peak condition, inside and out.

Essential 2005 Mazda 6 Catalytic Converters

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

Victor Reinz Catalytic Converter Gasket, 71-11141-00

from

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

Walker – Walker Exhaust Pipe Flange Gasket, 31534 (Part No.31534)

Walker Exhaust Pipe Flange Gasket, 31534

from

$7.69
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.
See More

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

MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99205HM

from

$196.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99205HM. 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

Dorman – Dorman Manifold Converter – Not CARB Compliant – Not For Sale – NY – CA – ME, 674-868 (Part No.674-868)

Dorman Manifold Converter - Not CARB Compliant - Not For Sale - NY - CA - ME, 674-868

from

$554.99
This catalytic converter with integrated exhaust manifold – a.k.a. manifold converter – is precision-engineered to match the original equipment on specific vehicle years, makes and models for a reliable replacement.
See More

Walker – "Walker Ultra EPA Direct Fit Catalytic Converter 2.5"" Outlet (OD), 16588" (Part No.16588)

"Walker Ultra EPA Direct Fit Catalytic Converter 2.5"" Outlet (OD), 16588"

from

$1387.00
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.
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 Direct-Fit Catalytic Converter, 51479 (Part No.51479)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 51479

from

$408.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51479. 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 2009-2013 Mazda 6 2.5L. MagnaFlow 51479 includes (1) Donut Gasket and interchanges with OE parts L505-20-55XA, L505-20-55XB, L505-20-55XC, L505-20-55XD, L505-20-55XE, L506-20-55XA, L506-20-55XB, L506-20-55XC, L506-20-55XD, L506-20-55XE, L541-20-55XA, L541-20-55XB, L541-20-55XC, L541-20-55XD, L5Y8-20-55X, L5Y8-20-55XA. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.
See More

MagnaFlow – MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99174HM (Part No.99174HM)

MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99174HM

from

$188.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99174HM. 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

Walker – "Walker CalCat CARB Universal Catalytic Converter 2.5"" Inlet (ID) 2.5"" Outlet (ID), 84206" (Part No.84206)

"Walker CalCat CARB Universal Catalytic Converter 2.5"" Inlet (ID) 2.5"" Outlet (ID), 84206"

from

$308.99
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.
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.
See More

Dorman – Dorman Pre-Converter – Not CARB Compliant, 679-532 (Part No.679-532)

Dorman Pre-Converter - Not CARB Compliant, 679-532

from

$807.99
This catalytic converter is precision-engineered to match the original equipment fit and function on specific vehicle years, makes and models for a reliable replacement.
See More

MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 49232 (Part No.49232)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 49232

from

$514.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49232. 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 2006-2008 Mazda 6 3.0L. MagnaFlow 49232 includes (2) Flat Ring Gaskets and interchanges with OE parts AJ48-20-60X, AJ48-20-60XA, AJ48-20-60XB, AJ48-20-60XC. 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.
See More

Walker – "Walker Ultra EPA Universal Catalytic Converter 2"" Inlet (ID) 2"" Outlet (ID), 93201" (Part No.93201)

"Walker Ultra EPA Universal Catalytic Converter 2"" Inlet (ID) 2"" Outlet (ID), 93201"

from

$194.99
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.
See More

MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Manifold Catalytic Converter, 51974 (Part No.51974)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Manifold Catalytic Converter, 51974

from

$894.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 51974. 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 2006-2008 Mazda 6 2.3L. MagnaFlow 51974 includes (1) Donut Gasket, (1) Flange Gasket and interchanges with OE parts L327-13-450, L327-13-450A, L327-13-450B, L327-13-450C, L327-13-450F, L362-13-45X, L362-13-45XB, L362-13-45XC, L362-13-45XD, L362-13-45XE, L362-13-45XF. 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.
See More

Walker – Walker Ultra EPA Direct Fit Catalytic Converter Overall Length 12.250 IN, 16491 (Part No.16491)

Walker Ultra EPA Direct Fit Catalytic Converter Overall Length 12.250 IN, 16491

from

$1063.00
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.
See More

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.
See More

MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 51739 (Part No.51739)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 51739

from

$451.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51739. 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 2003-2005 Mazda 6 3.0L. MagnaFlow 51739 includes (1) Bolt, (2) Flat Ring Gaskets and interchanges with OE parts AJ57-20-550C, AJ57-20-550E, AJ59-20-550F, AJ59-20-550G, AJB4-20-550, AJB4-20-550A. 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.
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

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.
See More

MagnaFlow – MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 5571176 (Part No.5571176)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 5571176

from

$527.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 5571176. 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, 51205 (Part No.51205)

MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51205

from

$213.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51205. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion welds greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
See More

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

MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99206HM

from

$196.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99206HM. 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 Direct-Fit Catalytic Converter, 51899 (Part No.51899)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 51899

from

$477.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51899. 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 2006-2008 Mazda 6 2.3L. MagnaFlow 51899 includes (3) Bolts, (1) Donut Gasket, (1) Flat Ring Gasket and interchanges with OE parts L362-20-55X, L362-20-55XA, L362-20-55XB, L362-20-55XC, L362-20-55XD. 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.
See More

MagnaFlow – MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 5571206 (Part No.5571206)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 5571206

from

$446.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 5571206. 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, 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

Walker – "Walker CalCat CARB Universal Catalytic Converter 2"" Inlet (ID) 2"" Outlet (ID), 83202" (Part No.83202)

"Walker CalCat CARB Universal Catalytic Converter 2"" Inlet (ID) 2"" Outlet (ID), 83202"

from

$455.99
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.
See More

MagnaFlow – MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 457204 (Part No.457204)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 457204

from

$381.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 457204. 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

Walker – "Walker Ultra EPA Universal Catalytic Converter – 2.5"" Inlet (ID) 2.5"" Outlet (ID), 93268" (Part No.93268)

"Walker Ultra EPA Universal Catalytic Converter - 2.5"" Inlet (ID) 2.5"" Outlet (ID), 93268"

from

$221.99
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.
See More

Most Popular Catalytic Converters for 2005 Mazda 6s

Enhance your 2005 Mazda 6 with one of the 23 Catalytic Converters we have in stock, starting at just $188.99.

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.
See More

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

MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99356HM

from

$214.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99356HM. 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

Walker – "Walker Ultra EPA Universal Catalytic Converter – 2.5"" Inlet (ID) 2.5"" Outlet (ID), 93268" (Part No.93268)

"Walker Ultra EPA Universal Catalytic Converter - 2.5"" Inlet (ID) 2.5"" Outlet (ID), 93268"

from

$221.99
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.
See More

Walker – "Walker Ultra EPA Universal Catalytic Converter 2"" Inlet (ID) 2"" Outlet (ID), 93201" (Part No.93201)

"Walker Ultra EPA Universal Catalytic Converter 2"" Inlet (ID) 2"" Outlet (ID), 93201"

from

$194.99
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.
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, 51356 (Part No.51356)

MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51356

from

$223.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51356. 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 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 Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51174 (Part No.51174)

MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51174

from

$194.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51174. 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, 99174HM (Part No.99174HM)

MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99174HM

from

$188.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99174HM. 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

Walker – "Walker CalCat CARB Universal Catalytic Converter 2"" Inlet (ID) 2"" Outlet (ID), 84408" (Part No.84408)

"Walker CalCat CARB Universal Catalytic Converter 2"" Inlet (ID) 2"" Outlet (ID), 84408"

from

$499.99
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.
See More

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 Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 51120 (Part No.51120)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 51120

from

$1047.00
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51120. 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 2003-2006 Mazda 6 2.3L. MagnaFlow 51120 includes (1) Donut Gasket, (1) Flange Gasket and interchanges with OE parts L304-20-55XC, L304-20-55XD, L304-20-55XE, L304-20-55XF, L304-20-55XG, L332-20-55XC, L362-20-55X, L362-20-55XA, L362-20-55XB, L362-20-55XC, L362-20-55XD, L363-20-55X, L363-20-55XA, L363-20-55XB. 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.
See More

MagnaFlow – MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 4481355 (Part No.4481355)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 4481355

from

$944.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 4481355. 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

Walker – Walker Ultra EPA Direct Fit Catalytic Converter Overall Length 26.500 IN, 16335 (Part No.16335)

Walker Ultra EPA Direct Fit Catalytic Converter Overall Length 26.500 IN, 16335

from

$899.99
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.
See More

MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Manifold Catalytic Converter, 51277 (Part No.51277)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Manifold Catalytic Converter, 51277

from

$865.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 51277. 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 2003-2005 Mazda 6 3.0L. MagnaFlow 51277 includes (2) Nuts, (2) Bolts, (2) Flat Washers, (1) Flange Gasket, (1) Flat Ring Gasket and interchanges with OE parts AJ57-20-50X, AJ57-20-50XA, AJ57-20-50XB, AJ57-20-50XC, AJB4-20-50X, AJB4-20-50XA, AJB4-20-50XB. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.
See More

Walker – "Walker CalCat CARB Universal Catalytic Converter 2"" Inlet (ID) 2""Outlet (ID), 84218" (Part No.84218)

"Walker CalCat CARB Universal Catalytic Converter 2"" Inlet (ID) 2""Outlet (ID), 84218"

from

$594.99
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.
See More

MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 51975 (Part No.51975)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 51975

from

$576.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51975. 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 2003-2005 Mazda 6 3.0L. MagnaFlow 51975 includes (1) Flange Gasket, (2) Flat Ring Gaskets and interchanges with OE parts AJ59-20-60XF, AJB4-20-60X, AJB4-20-60XA. 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.
See More

MagnaFlow – MagnaFlow Hm Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 23772 (Part No.23772)

MagnaFlow Hm Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 23772

from

$529.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 23772. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. MagnaFlow 23772 includes (1) Flange Gasket, (2) Flat Ring Gaskets and interchanges with OE parts AJ59-20-60XF, AJB4-20-60X, AJB4-20-60XA. 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 Universal Catalytic Converter, 5571176 (Part No.5571176)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 5571176

from

$527.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 5571176. 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 Universal Catalytic Converter, 5571204 (Part No.5571204)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 5571204

from

$511.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 5571204. 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

Walker – "Walker CalCat CARB Universal Catalytic Converter 2"" Inlet (ID) 2"" Outlet (ID), 83202" (Part No.83202)

"Walker CalCat CARB Universal Catalytic Converter 2"" Inlet (ID) 2"" Outlet (ID), 83202"

from

$455.99
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.
See More

MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 51739 (Part No.51739)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 51739

from

$451.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51739. 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 2003-2005 Mazda 6 3.0L. MagnaFlow 51739 includes (1) Bolt, (2) Flat Ring Gaskets and interchanges with OE parts AJ57-20-550C, AJ57-20-550E, AJ59-20-550F, AJ59-20-550G, AJB4-20-550, AJB4-20-550A. 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.
See More

Walker – "Walker CalCat CARB Universal Catalytic Converter 2"" Inlet (ID) 2"" Outlet (ID), 84202" (Part No.84202)

"Walker CalCat CARB Universal Catalytic Converter 2"" Inlet (ID) 2"" Outlet (ID), 84202"

from

$366.99
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.
See More

Best-Selling 2005 Mazda 6 Catalytic Converter Gaskets

Upgrade your 6 with one of our 2 best-selling Catalytic Converter Gaskets, earning an average 4.5 stars rating across 23 reviews.

Walker – Walker Exhaust Pipe Flange Gasket, 31534 (Part No.31534)

Walker Exhaust Pipe Flange Gasket, 31534

from

$7.69
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.
See More

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

Victor Reinz Catalytic Converter Gasket, 71-11141-00

from

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

Top-Rated Catalytic Converter Brands For Your 2005 Mazda 6

When it comes to finding the perfect Catalytic Converter for your 2005 Mazda 6, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Catalytic Converter brands including Walker, and more, all known for their exceptional customer ratings (average brand rating of 4.2 stars) and competitive prices, as low as $7.69. Purchasing a Catalytic Converter from us here at Advance Auto Parts is a smart move for both you and your 2005 Mazda 6, providing peace of mind with parts that meet or exceed OEM standards.

Popular Walker 2005 Mazda 6 Catalytic Converters

If you’re looking for a top-quality Catalytic Converter for your 2005 Mazda 6, Advance Auto Parts has exactly what you need with our selection of Walker Catalytic Converters. We have 1 Walker Catalytic Converters in stock for this fitment, all known for their durability and precision fit. With prices starting at just $7.69, you’ll find the perfect Catalytic Converter for your needs and budget. Walker Catalytic Converters for the 2005 Mazda 6 come highly rated, with over 23 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 Exhaust Pipe Flange Gasket, 31534
from $7.69
(23)
Walker Exhaust Pipe Flange Gasket, 31534
“Works great”

FAQs for 2005 Mazda 6 Catalytic Converters

What are the best-selling Catalytic Converters for 2005 Mazda 6s?

Out of 25 Catalytic Converters that fit 2005 Mazda 6s, the following parts are the top sellers:

What’s the price range for 2005 Mazda 6 Catalytic Converters?

The prices of Catalytic Converters for the 2005 Mazda 6 range from $4.99 up to $1,047.00 for the most premium parts.

What is the average price of a Catalytic Converter for a 2005 Mazda 6?

The average price for Catalytic Converters for the 2005 Mazda 6 is $417.10. 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 Mazda 6 model years?

Yes, we carry Catalytic Converters for 17 model years of Mazda 6s between 2003 and 2021. The following model years are the most popular for Catalytic Converter purchases: 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, and 2010.

What are the cheapest Catalytic Converters for my 2005 Mazda 6?

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

Yes. We stock Catalytic Converters for 7 other popular 2005 Mazda models. Some of the most popular are 2005 MPV Catalytic Converters, 2005 B4000 Catalytic Converters, 2005 B2300 Catalytic Converters, 2005 RX-8 Catalytic Converters, and 2005 3 Catalytic Converters.

What are the top-rated Catalytic Converters that fit the 2005 Mazda 6?

Based on 74 reviews by customers, our 2005 Mazda 6 Catalytic Converters have an average customer rating of 3.6 stars. These are the highest-rated categories of Catalytic Converters for the 2005 Mazda 6 and their top-rated products:

What types of Catalytic Converters do you sell for my 2005 Mazda 6?

As of 8/2/26, these are some of the most in-demand types of Catalytic Converters for a 2005 Mazda 6:

Can I get help with 2005 Mazda 6 Catalytic Converter orders?

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

What is your return policy for Mazda 6 Catalytic Converters?

Advance Auto Parts keeps returns simple. For new Mazda 6 Catalytic Converters and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.