1998 Buick Riviera Catalytic Converters

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Keep Your 1998 Buick Riviera 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 1998 Buick Riviera 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 MagnaFlow and Walker. For example, MagnaFlow Catalytic Converters start at just $196.99 with an average 4.1 star rating. Walker offer similar pricing and quality, backed by strong customer feedback. With over 24 reviews and a solid 3.9 star average, you can shop with confidence knowing other Buick Riviera owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1998 Buick Riviera Catalytic Converter at Advance Auto Parts is around $482.37, with a range that starts at $19.79 and goes up to $1,077.99. With 10 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like "Walker Ultra EPA Direct Fit Catalytic Converter 2.5"" Outlet (OD), 15817", MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 418006, and MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51209 start at just $213.99 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 Fittings and Exhaust Manifold and Headers. At Advance Auto Parts, we’re here to help you keep your 1998 Buick Riviera in peak condition, inside and out.

Essential 1998 Buick Riviera Catalytic Converters

Walker – "Walker Standard EPA Universal Catalytic Converter 2.25"" Inlet (ID) 2.25"" Outlet (ID), 15037" (Part No.15037)

"Walker Standard EPA Universal Catalytic Converter 2.25"" Inlet (ID) 2.25"" Outlet (ID), 15037"

from

$122.99
Designed to provide the required reduction in tailpipe emissions and meet EPA emissions requirements with assured compliance, Walker universal catalytic converters are available for pre-OBDII (1995 and older) vehicles. Count on Walker�catalytic�converters�for�industry-leading fit and performance.
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MagnaFlow – MagnaFlow Standard Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 23422 (Part No.23422)

MagnaFlow Standard Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 23422

from

$233.99
Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 23422. 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 23422 includes (1) Donut Gasket. 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 Standard Grade Federal / Epa Compliant Universal Catalytic Converter, 94026 (Part No.94026)

MagnaFlow Standard Grade Federal / Epa Compliant Universal Catalytic Converter, 94026

from

$141.99
Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 94026. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design. With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for pre-OBDII Federally registered vehicles.
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Walker – "Walker Standard EPA Universal Catalytic Converter 2.5"" Inlet (ID) 2.5"" Outlet (ID), 15142" (Part No.15142)

"Walker Standard EPA Universal Catalytic Converter 2.5"" Inlet (ID) 2.5"" Outlet (ID), 15142"

from

$563.99
Designed to provide the required reduction in tailpipe emissions and meet EPA emissions requirements with assured compliance, Walker universal catalytic converters are available for pre-OBDII (1995 and older) vehicles. Count on Walker�catalytic�converters�for�industry-leading fit and performance.
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MagnaFlow – MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 418006 (Part No.418006)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 418006

from

$477.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 418006. 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 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.
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Walker – "Walker CalCat CARB Universal Catalytic Converter 2.25"" Inlet (ID) 2.25""Outlet (ID), 81327" (Part No.81327)

"Walker CalCat CARB Universal Catalytic Converter 2.25"" Inlet (ID) 2.25""Outlet (ID), 81327"

from

$437.99
Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat universal catalytic converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles. Walker CalCat catalytic converters are thoroughly tested to ensure they meet CARB performance requirements.
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Walker – "Walker CalCat CARB Universal Catalytic Converter 3"" Inlet (ID) 3"" Outlet (ID), 81507" (Part No.81507)

"Walker CalCat CARB Universal Catalytic Converter 3"" Inlet (ID) 3"" Outlet (ID), 81507"

from

$861.99
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 Universal Catalytic Converter, 3322306 (Part No.3322306)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 3322306

from

$611.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 3322306. 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 Universal Catalytic Converter, 3322016 (Part No.3322016)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 3322016

from

$757.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 3322016. 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 Standard EPA Direct Fit Catalytic Converter 2.25"" Inlet (ID) 2.625"" Outlet (OD), 15646" (Part No.15646)

"Walker Standard EPA Direct Fit Catalytic Converter 2.25"" Inlet (ID) 2.625"" Outlet (OD), 15646"

from

$211.99
Designed to provide the required reduction in tailpipe emissions and meet EPA emissions requirements with assured compliance, Walker Standard direct-fit catalytic converters are available for pre-OBD (1995 and older) vehicles. Count on Walker Standard converters for industry-leading fit and performance.
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Walker – Walker CalCat Catalytic Converter- CARB Certified, Direct Replacement, No Fabrication Needed, 81967 (Part No.81967)

Walker CalCat Catalytic Converter- CARB Certified, Direct Replacement, No Fabrication Needed, 81967

from

$1077.99
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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Walker – "Walker CalCat CARB Universal Catalytic Converter 2.25"" Inlet (ID) 2.25""Outlet (ID), 81322" (Part No.81322)

"Walker CalCat CARB Universal Catalytic Converter 2.25"" Inlet (ID) 2.25""Outlet (ID), 81322"

from

$489.99
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 Standard Grade Federal / Epa Compliant Universal Catalytic Converter, 94015 (Part No.94015)

MagnaFlow Standard Grade Federal / Epa Compliant Universal Catalytic Converter, 94015

from

$137.99
Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 94015. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design. With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for pre-OBDII Federally registered vehicles.
See More

Walker – Walker Exhaust Pipe Flange Gasket, 31605 (Part No.31605)

Walker Exhaust Pipe Flange Gasket, 31605

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, 31511 (Part No.31511)

Walker Exhaust Pipe Flange Gasket, 31511

from

$13.79
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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Victor Reinz – Victor Reinz Catalytic Converter Gasket, 71-13618-00 (Part No.71-13618-00)

Victor Reinz Catalytic Converter Gasket, 71-13618-00

from

$5.79
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, 31557 (Part No.31557)

Walker Exhaust Pipe Flange Gasket, 31557

from

$12.79
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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Most Popular Catalytic Converters for 1998 Buick Rivieras

Enhance your 1998 Buick Riviera with one of the 9 Catalytic Converters we have in stock, starting at just $196.99.

MagnaFlow – MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99306HM (Part No.99306HM)

MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99306HM

from

$204.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99306HM. 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 3"" Inlet (ID) 3"" Outlet (ID), 93304" (Part No.93304)

"Walker Ultra EPA Universal Catalytic Converter 3"" Inlet (ID) 3"" Outlet (ID), 93304"

from

$348.99
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 Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99209HM (Part No.99209HM)

MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99209HM

from

$196.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99209HM. 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 2.5"" Outlet (OD), 15817" (Part No.15817)

"Walker Ultra EPA Direct Fit Catalytic Converter 2.5"" Outlet (OD), 15817"

from

$637.99
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

Walker – Walker CalCat Catalytic Converter- CARB Certified, Direct Replacement, No Fabrication Needed, 81967 (Part No.81967)

Walker CalCat Catalytic Converter- CARB Certified, Direct Replacement, No Fabrication Needed, 81967

from

$1077.99
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.
See More

Walker – "Walker CalCat CARB Universal Catalytic Converter 3"" Inlet (ID) 3"" Outlet (ID), 81507" (Part No.81507)

"Walker CalCat CARB Universal Catalytic Converter 3"" Inlet (ID) 3"" Outlet (ID), 81507"

from

$861.99
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, 448309 (Part No.448309)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 448309

from

$782.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 448309. 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, 418006 (Part No.418006)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 418006

from

$477.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 418006. 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, 51209 (Part No.51209)

MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51209

from

$213.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51209. 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

Best-Selling 1998 Buick Riviera Catalytic Converter Gasket

Upgrade your Riviera with our best-selling Catalytic Converter Gasket with a 3 Starts rating across 2 reviews.

Walker – Walker Exhaust Pipe Flange Gasket, 31605 (Part No.31605)

Walker Exhaust Pipe Flange Gasket, 31605

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.
See More

Top-Rated Catalytic Converter Brands For Your 1998 Buick Riviera

When it comes to finding the perfect Catalytic Converter for your 1998 Buick Riviera, 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 $196.99. Purchasing a Catalytic Converter from us here at Advance Auto Parts is a smart move for both you and your 1998 Buick Riviera, providing peace of mind with parts that meet or exceed OEM standards.

Popular Walker 1998 Buick Riviera Catalytic Converters

If you’re looking for a top-quality Catalytic Converter for your 1998 Buick Riviera, 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 $348.99, you’ll find the perfect Catalytic Converter for your needs and budget. Walker Catalytic Converters for the 1998 Buick Riviera come highly rated, with over 15 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 Universal Catalytic Converter 3"" Inlet (ID) 3"" Outlet (ID), 93304"
from $348.99
(15)
"Walker Ultra EPA Universal Catalytic Converter 3"" Inlet (ID) 3"" Outlet (ID), 93304"
“This is a good replcacement if you have welding capability.Total cost to me was about half of what a complete new assembly.Must remove complete exhaus”

Top-Quality MagnaFlow 1998 Buick Riviera Catalytic Converters

For those in search of a high-quality Catalytic Converter for their 1998 Buick Riviera, Advance Auto Parts offers a great selection of MagnaFlow Catalytic Converters. With 2 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 $196.99, with an average price of $200.99, giving you a range of options to suit your budget. Backed by over 7 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, 99306HM
from $204.99
(6)
MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99306HM
“Worked perfect for the car, enough back pressure the “check engine” light doesn’t come on. It is a little louder than stock converter, but definitely ”

FAQs for 1998 Buick Riviera Catalytic Converters

What are the best-selling Catalytic Converters for 1998 Buick Rivieras?

Out of 10 Catalytic Converters that fit 1998 Buick Rivieras, the following parts are the top sellers:

What’s the price range for 1998 Buick Riviera Catalytic Converters?

The prices of Catalytic Converters for the 1998 Buick Riviera range from $19.79 up to $1,077.99 for the most premium parts.

What is the average price of a Catalytic Converter for a 1998 Buick Riviera?

The average price for Catalytic Converters for the 1998 Buick Riviera is $482.37. Keep in mind the variety of part types within our Catalytic Converter category, where you are likely to find a wide range of prices across a variety of parts and components.

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

Yes, we carry Catalytic Converters for 22 model years of Buick Rivieras between 1975 and 1999. The following model years are the most popular for Catalytic Converter purchases: 1999, 1997, 1996, 1995, 1993, 1992, 1991, 1990, and 1989.

What are the cheapest Catalytic Converters for my 1998 Buick Riviera?

Does Advance Auto Parts sell Catalytic Converters for any other 1998 Buick models?

Yes. We stock Catalytic Converters for 4 other popular 1998 Buick models. Some of the most popular are 1998 Regal Catalytic Converters, 1998 Century Catalytic Converters, 1998 LeSabre Catalytic Converters, 1998 Skylark Catalytic Converters, and 1998 Park Avenue Catalytic Converters.

What are the top-rated Catalytic Converters that fit the 1998 Buick Riviera?

Based on 24 reviews by customers, our 1998 Buick Riviera Catalytic Converters have an average customer rating of 3.9 stars. These are the highest-rated categories of Catalytic Converters for the 1998 Buick Riviera and their top-rated products:

What types of Catalytic Converters do you sell for my 1998 Buick Riviera?

As of 8/2/26, these are some of the most in-demand types of Catalytic Converters for a 1998 Buick Riviera:

Can I get help with 1998 Buick Riviera Catalytic Converter orders?

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

What is your return policy for Buick Riviera Catalytic Converters?

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