2003 Chevrolet Blazer Catalytic Converters
Keep Your 2003 Chevrolet Blazer 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 2003 Chevrolet Blazer 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 $9.99 with an average 4.2 star rating. With over 12 reviews and a solid 5.0 star average, you can shop with confidence knowing other Chevrolet Blazer owners approve.
Competitive Prices and Extensive Inventory
The average price for a 2003 Chevrolet Blazer Catalytic Converter at Advance Auto Parts is around $457.82, with a range that starts at $9.99 and goes up to $1,021.00. With 12 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like "Walker Ultra EPA Universal Catalytic Converter 2.5"" Inlet (ID) 2.5"" Outlet (ID), 93203", MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51206, and MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99206HM start at just $196.99 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 2003 Chevrolet Blazer in peak condition, inside and out.
Find Your Specific 2003 Chevrolet Blazer Catalytic Converters
Looking for the perfect Catalytic Converter for your 2003 Chevrolet Blazer? You’re in the right place. Below, you’ll find links to various types of Catalytic Converters that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Catalytic Converters, ensuring durability and a precise fit for your Chevrolet Blazer. Whether you’re driving a 2003 model or another popular model year like
1996,
1997,
1998,
1999,
2000,
2001,
2002,
2004, and
2005, we’ve got you covered. Purchasing Catalytic Converters from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Catalytic Converters that fit your vehicle.
Essential 2003 Chevrolet Blazer Catalytic Converters
Walker – "Walker CalCat CARB Direct Fit Catalytic Converter 2.5"" Inlet (ID) 3.375"" Outlet (OD), 80946" (Part No.80946)
from
$1139.00
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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Walker – "Walker CalCat CARB Universal Catalytic Converter 3"" Inlet (ID) 3"" Outlet (ID), 81919" (Part No.81919)
from
$1243.00
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 2.5"" Inlet (ID) 2.5"" Outlet (ID), 80906" (Part No.80906)
from
$673.99
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, 459006 (Part No.459006)
from
$549.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 459006. 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 Ultra EPA Universal Catalytic Converter – 3"" Inlet (ID) 3"" Outlet (ID), 93239" (Part No.93239)
from
$214.99
Designed to comply with EPA emissions requirements while delivering premium performance and durability with assured compliance, Walker Ultra Universal Catalytic Converters are available for import and domestic OBDII (1996 and newer) vehicles.
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MagnaFlow – MagnaFlow Standard Grade Federal / Epa Compliant Universal Catalytic Converter, 94006 (Part No.94006)
from
$131.99
Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 94006. 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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MagnaFlow – MagnaFlow California Grade Carb Compliant Direct-Fit Catalytic Converter, 458057 (Part No.458057)
from
$2464.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 458057. 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 458057 includes (2) Torca Clamps, (2) Donut Gaskets, (1) Flange Gasket. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.
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MagnaFlow – MagnaFlow California Grade Carb Compliant Direct-Fit Catalytic Converter, 3391432 (Part No.3391432)
from
$1159.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 3391432. 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 replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.
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Walker – "Walker CalCat CARB Universal Catalytic Converter 3"" Inlet (ID) 3"" Outlet (ID), 80907" (Part No.80907)
from
$673.99
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 2.5"" Inlet (ID) 2.5"" Outlet (ID), 81723" (Part No.81723)
from
$983.99
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 Catalytic Converter- CARB Certified, Direct Replacement, No Fabrication Needed, 81943 (Part No.81943)
from
$2352.99
Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Direct-Fit Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles and delivers a precise OE-style fit.
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MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51006 (Part No.51006)
from
$252.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51006. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion welds greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
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MagnaFlow – MagnaFlow Standard Grade Federal / Epa Compliant Universal Catalytic Converter, 94009 (Part No.94009)
from
$129.99
Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 94009. 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 Direct Fit Catalytic Converter 3.25"" Inlet (ID) 3.375"" Outlet (OD), 50300" (Part No.50300)
from
$383.99
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 Exhaust Pipe Flange Gasket, 31588 (Part No.31588)
from
$9.99
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 Catalytic Converter Gasket, F7534 (Part No.F7534)
from
$4.99
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.
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Walker – Walker Exhaust Pipe Flange Gasket, 31398 (Part No.31398)
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, 31589 (Part No.31589)
from
$9.39
Complete your exhaust repair with Walker gaskets and flanges. Built from quality materials for long lasting durability, they’re available in a range of styles and sizes. Each component is designed to work seamlessly with OE exhaust systems and Walker aftermarket replacement parts.
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MAHLE Original – MAHLE Original Exhaust Pipe to Converter, F7566 (Part No.F7566)
from
$7.99
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.
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Popular 2003 Chevrolet Blazer Catalytic Converters Categories
Most Popular Catalytic Converter Gasket for 2003 Chevrolet Blazers
Enhance your 2003 Chevrolet Blazer with this popular Catalytic Converter Gasket we have in stock, for $9.99.
Walker – Walker Exhaust Pipe Flange Gasket, 31588 (Part No.31588)
from
$9.99
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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Best-Selling 2003 Chevrolet Blazer Catalytic Converters
Upgrade your Blazer with one of our 11 best-selling Catalytic Converters.
Walker – "Walker Ultra EPA Universal Catalytic Converter 2.5"" Inlet (ID) 2.5"" Outlet (ID), 93203" (Part No.93203)
from
$233.99
Designed to meet EPA emissions requirements while delivering premium performance and durability, Walker Ultra universal catalytic converters fit import and domestic OBDII (1996 and newer) vehicles. Each converter features an OE style high technology washcoat with an optimal precious metal load for assured compliance.
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MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51206 (Part No.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 Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99206HM (Part No.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 2.5"" Inlet (ID) 2.5"" Outlet (ID), 81923" (Part No.81923)
from
$1021.00
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 2.5"" Inlet (ID) 2.5"" Outlet (ID), 81723" (Part No.81723)
from
$983.99
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 2.5"" Inlet (ID) 2.5"" Outlet (ID), 83508" (Part No.83508)
from
$661.99
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 2.5"" Inlet (ID) 2.5"" Outlet (ID), 83403" (Part No.83403)
from
$613.99
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, 459006 (Part No.459006)
from
$549.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 459006. 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, 458006 (Part No.458006)
from
$458.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 458006. 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, 51656 (Part No.51656)
from
$308.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51656. 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, 99656HM (Part No.99656HM)
from
$239.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99656HM. 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
Top-Rated Catalytic Converter Brands For Your 2003 Chevrolet Blazer
When it comes to finding the perfect Catalytic Converter for your 2003 Chevrolet Blazer, 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 more, all known for their exceptional customer ratings (average brand rating of 4.2 stars) and competitive prices, as low as $9.99. Purchasing a Catalytic Converter from us here at Advance Auto Parts is a smart move for both you and your 2003 Chevrolet Blazer, providing peace of mind with parts that meet or exceed OEM standards.
Popular Walker 2003 Chevrolet Blazer Catalytic Converters
If you’re looking for a top-quality Catalytic Converter for your 2003 Chevrolet Blazer, 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 $9.99, you’ll find the perfect Catalytic Converter for your needs and budget. Walker Catalytic Converters for the 2003 Chevrolet Blazer come highly rated, with over 12 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.
FAQs for 2003 Chevrolet Blazer Catalytic Converters
What are the best-selling Catalytic Converters for 2003 Chevrolet Blazers?
Out of 12 Catalytic Converters that fit 2003 Chevrolet Blazers, the following parts are the top sellers:
- "Walker Ultra EPA Universal Catalytic Converter 2.5"" Inlet (ID) 2.5"" Outlet (ID), 93203" (11249744) – $233.99
- MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51206 (10605289) – $213.99
- MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99206HM (22315797) – $196.99
What’s the price range for 2003 Chevrolet Blazer Catalytic Converters?
The prices of Catalytic Converters for the 2003 Chevrolet Blazer range from $9.99 up to $1,021.00 for the most premium parts.
What is the average price of a Catalytic Converter for a 2003 Chevrolet Blazer?
The average price for Catalytic Converters for the 2003 Chevrolet Blazer is $457.82. 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 Chevrolet Blazer model years?
What are the cheapest Catalytic Converters for my 2003 Chevrolet Blazer?
The cheapest 2003 Chevrolet Blazer Catalytic Converters we carry are:
- Walker Exhaust Pipe Flange Gasket, 31588 (18370903) – $9.99
- MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99206HM (22315797) – $196.99
- MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51206 (10605289) – $213.99
- "Walker Ultra EPA Universal Catalytic Converter 2.5"" Inlet (ID) 2.5"" Outlet (ID), 93203" (11249744) – $233.99
- MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99656HM (10191902) – $239.99
Does Advance Auto Parts sell Catalytic Converters for any other 2003 Chevrolet models?
Yes. We stock Catalytic Converters for 24 other popular 2003 Chevrolet models. Some of the most popular are 2003 Tahoe Catalytic Converters, 2003 Impala Catalytic Converters, 2003 Silverado 1500 Catalytic Converters, 2003 Malibu Catalytic Converters, and 2003 Suburban 1500 Catalytic Converters.
What are the top-rated Catalytic Converters that fit the 2003 Chevrolet Blazer?
The one 2003 Chevrolet Blazer Catalytic Converter we have in stock is the Walker Exhaust Pipe Flange Gasket, 31588. It is rated 5 stars and costs $9.99.
What types of Catalytic Converters do you sell for my 2003 Chevrolet Blazer?
As of 8/2/26, these are some of the most in-demand types of Catalytic Converters for a 2003 Chevrolet Blazer:
Can I get help with 2003 Chevrolet Blazer Catalytic Converter orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Chevrolet Catalytic Converters and more.
What is your return policy for Chevrolet Blazer Catalytic Converters?
Advance Auto Parts keeps returns simple. For new Chevrolet Blazer Catalytic Converters and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.