2018 Kia Optima Catalytic Converters

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Keep Your 2018 Kia Optima in Top Shape with Quality Catalytic Converters

Whether you’re repairing or upgrading your Catalytic Converter, using high-quality parts is key to keeping your 2018 Kia Optima 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. For example, Walker Catalytic Converters start at just $5.49 with an average 4.2 star rating. With over 92 reviews and a solid 4.5 star average, you can shop with confidence knowing other Kia Optima owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2018 Kia Optima Catalytic Converter at Advance Auto Parts is around $427.88, with a range that starts at $4.79 and goes up to $1,043.00. With 8 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like MAHLE Original Catalytic Converter Gasket, F32218, MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51206, and MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51205 start at just $4.79 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 Mufflers and Exhaust Pipes. At Advance Auto Parts, we’re here to help you keep your 2018 Kia Optima in peak condition, inside and out.

Essential 2018 Kia Optima Catalytic Converters

MagnaFlow – MagnaFlow California Grade Carb Compliant Direct-Fit Manifold Catalytic Converter, 452021 (Part No.452021)

MagnaFlow California Grade Carb Compliant Direct-Fit Manifold Catalytic Converter, 452021

from

$821.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Manifold Catalytic Converter 452021. 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 452021 includes (2) Nuts, (2) Bolts, (2) Flange Gaskets and interchanges with OE parts 28510-37162, 28510-37381. 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 Direct-Fit Catalytic Converter, 457002 (Part No.457002)

MagnaFlow California Grade Carb Compliant Direct-Fit Catalytic Converter, 457002

from

$682.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 457002. 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 2002-2006 Kia Optima 2.7L & 2002-2005 Hyundai Sonata 2.7L. MagnaFlow 457002 includes (3) Flange Gaskets and interchanges with OE parts 28610-3C875. 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, 444104 (Part No.444104)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 444104

from

$356.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 444104. 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 California Grade Carb Compliant Direct-Fit Catalytic Converter, 452020 (Part No.452020)

MagnaFlow California Grade Carb Compliant Direct-Fit Catalytic Converter, 452020

from

$864.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 452020. 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 2001-2006 Kia Optima 2.4L & 1999-2005 Hyundai Sonata 2.4L. MagnaFlow 452020 includes (2) Flange Gaskets and interchanges with OE parts 28530-38750, 28530-38760, 28530-38770. 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, 51133 (Part No.51133)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 51133

from

$1043.00
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51133. 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 51133 interchanges with OE parts 28600-2T230, 28600-3Q200, 28600-3Q330. 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 with Integrated Exhaust Manifold, 14728 (Part No.14728)

Walker Ultra EPA Direct Fit Catalytic Converter with Integrated Exhaust Manifold, 14728

from

$788.99
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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Walker – "Walker CalCat CARB Direct Fit Catalytic Converter 2.25"" Outlet (OD), 83295" (Part No.83295)

"Walker CalCat CARB Direct Fit Catalytic Converter 2.25"" Outlet (OD), 83295"

from

$538.99
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. Walker CalCat catalytic converters are thoroughly tested to ensure they meet CARB performance requirements.
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MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 21-161 (Part No.21-161)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 21-161

from

$855.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-161. 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 21-161 includes (2) Nuts, (2) Bolts, (1) O2 Port Plug, (2) Flange Gaskets and interchanges with OE parts 28950-2G330, 28950-3E140, 28950-3E180, 28950-3E190, 28960-2G710. 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 Universal Catalytic Converter 2"" Inlet (ID) 2"" Outlet (ID), 93236" (Part No.93236)

"Walker Ultra EPA Universal Catalytic Converter 2"" Inlet (ID) 2"" Outlet (ID), 93236"

from

$246.99
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 California Grade Carb Compliant Direct-Fit Catalytic Converter, 5561817 (Part No.5561817)

MagnaFlow California Grade Carb Compliant Direct-Fit Catalytic Converter, 5561817

from

$2031.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5561817. 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 2011-2012 Kia Optima 2.4L. MagnaFlow 5561817 includes (2) Flange Gaskets. 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 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.
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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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Walker – Walker Ultra EPA Direct Fit Catalytic Converter Overall Length 8.000 IN, 16395 (Part No.16395)

Walker Ultra EPA Direct Fit Catalytic Converter Overall Length 8.000 IN, 16395

from

$1155.00
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.
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MagnaFlow – MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 457104 (Part No.457104)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 457104

from

$411.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 457104. 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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Victor Reinz – Victor Reinz Catalytic Converter Gasket, 71-15038-00 (Part No.71-15038-00)

Victor Reinz Catalytic Converter Gasket, 71-15038-00

from

$6.79
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.
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Victor Reinz – Victor Reinz Catalytic Converter Gasket, 71-13605-00 (Part No.71-13605-00)

Victor Reinz Catalytic Converter Gasket, 71-13605-00

from

$6.79
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.
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Walker – Walker Exhaust Pipe Flange Gasket, 31388 (Part No.31388)

Walker Exhaust Pipe Flange Gasket, 31388

from

$5.99
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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MAHLE Original – MAHLE Original Exhaust Pipe Flange Gasket, F32156 (Part No.F32156)

MAHLE Original Exhaust Pipe Flange Gasket, F32156

from

$9.99
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.
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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.
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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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MAHLE Original – MAHLE Original Catalytic Converter Gasket, F32218 (Part No.F32218)

MAHLE Original Catalytic Converter Gasket, F32218

from

$4.79
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.
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Walker – Walker Exhaust Pipe Flange Gasket, 31599 (Part No.31599)

Walker Exhaust Pipe Flange Gasket, 31599

from

$19.79
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, 31537 (Part No.31537)

Walker Exhaust Pipe Flange Gasket, 31537

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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Most Popular Catalytic Converter Gaskets for 2018 Kia Optimas

Enhance your 2018 Kia Optima with one of the 3 Catalytic Converter Gaskets we have in stock, starting at just $4.79.

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.
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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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MAHLE Original – MAHLE Original Catalytic Converter Gasket, F32218 (Part No.F32218)

MAHLE Original Catalytic Converter Gasket, F32218

from

$4.79
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.
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Best-Selling 2018 Kia Optima Catalytic Converters

Upgrade your Optima with one of our 5 best-selling Catalytic Converters.

MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51206 (Part No.51206)

MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51206

from

$213.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51206. 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, 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 Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 51133 (Part No.51133)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 51133

from

$1043.00
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51133. 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 51133 interchanges with OE parts 28600-2T230, 28600-3Q200, 28600-3Q330. 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 with Integrated Exhaust Manifold, 14728 (Part No.14728)

Walker Ultra EPA Direct Fit Catalytic Converter with Integrated Exhaust Manifold, 14728

from

$788.99
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 Catalytic Converter, 21-144 (Part No.21-144)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 21-144

from

$764.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-144. 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 21-144 interchanges with OE parts 28600-C2560, 28600-C2600, 28650-C2400. 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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Top-Rated Catalytic Converter Brands For Your 2018 Kia Optima

When it comes to finding the perfect Catalytic Converter for your 2018 Kia Optima, 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 $5.49. Purchasing a Catalytic Converter from us here at Advance Auto Parts is a smart move for both you and your 2018 Kia Optima, providing peace of mind with parts that meet or exceed OEM standards.

Popular Walker 2018 Kia Optima Catalytic Converters

If you’re looking for a top-quality Catalytic Converter for your 2018 Kia Optima, 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 $6.59, you’ll find the perfect Catalytic Converter for your needs and budget. Walker Catalytic Converters for the 2018 Kia Optima come highly rated, with over 46 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”
Walker Exhaust Pipe Flange Gasket, 31337
from $5.49
(23)
Walker Exhaust Pipe Flange Gasket, 31337
“Right part”

FAQs for 2018 Kia Optima Catalytic Converters

What are the best-selling Catalytic Converters for 2018 Kia Optimas?

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

What’s the price range for 2018 Kia Optima Catalytic Converters?

The prices of Catalytic Converters for the 2018 Kia Optima range from $4.79 up to $1,043.00 for the most premium parts.

What is the average price of a Catalytic Converter for a 2018 Kia Optima?

The average price for Catalytic Converters for the 2018 Kia Optima is $427.88. 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 Kia Optima model years?

Yes, we carry Catalytic Converters for 18 model years of Kia Optimas between 2001 and 2020. The following model years are the most popular for Catalytic Converter purchases: 2020, 2019, 2017, 2016, 2015, 2014, 2013, 2012, and 2011.

What are the cheapest Catalytic Converters for my 2018 Kia Optima?

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

Yes. We stock Catalytic Converters for 7 other popular 2018 Kia models. Some of the most popular are 2018 Sportage Catalytic Converters, 2018 Rio Catalytic Converters, 2018 Forte Catalytic Converters, 2018 Sorento Catalytic Converters, and 2018 Sedona Catalytic Converters.

What are the top-rated Catalytic Converters that fit the 2018 Kia Optima?

The one 2018 Kia Optima Catalytic Converter we have in stock is the MAHLE Original Catalytic Converter Gasket, F32218. It costs $4.79.

What types of Catalytic Converters do you sell for my 2018 Kia Optima?

As of 8/2/26, these are some of the most in-demand types of Catalytic Converters for a 2018 Kia Optima:

Can I get help with 2018 Kia Optima Catalytic Converter orders?

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

What is your return policy for Kia Optima Catalytic Converters?

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