2003 Mercury Marauder Catalytic Converters
Keep Your 2003 Mercury Marauder in Top Shape with a Quality Catalytic Converter
When it comes to maintaining or upgrading your 2003 Mercury Marauder, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Catalytic Converter for your Marauder. We currently carry a top Catalytic Converter in stock that is built to last. Whether you’re replacing a damaged Catalytic Converter or looking to upgrade, our selection for the 2003 Mercury Marauder ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.
Explore Related Parts
And while you’re here, don’t forget to check out related part categories like Exhaust Manifold and Headers and Exhaust System Kits to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 2003 Mercury Marauder running smoothly and looking great.
Find Your Specific 2003 Mercury Marauder Catalytic Converters
Looking for the perfect Catalytic Converter for your 2003 Mercury Marauder? You’re in the right place. Below, you’ll find a Catalytic Converter from a trusted manufacturer that is a perfect fit for 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 Mercury Marauder. Whether you’re driving a 2003 model or another popular model year like
2004, 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 Mercury Marauder Catalytic Converters
MagnaFlow – California Universal Catalytic Converter – 2.25" (Part No.451005)
from
$373.99
MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 451005 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design, cutting and welding is required. 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 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.
Product Features:
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Product Features:
- Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Compact, lightweight construction enables installation in confined areas, welding is required
- Durable 308 stainless steel MIG welds
MagnaFlow – Direct-Fit California Grade Catalytic Converter (Part No.454000)
from
$1171.99
MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 454000 helps keep the check engine light off. DIY installation is easy with the proper tools, no cutting or welding required. With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. Designed to fit the 2003-2005 Mercury Grand Marquis, 2003-2006 Lincoln Town Car, and more, this direct-fit catalytic converter also interchanges with OE part 3W1Z-5E212-GB. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. 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.
Product Features:
See More
Product Features:
- Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
- Simplifies installation with essential gaskets and hardware being included in the box
- Durable 308 stainless steel MIG welds
MagnaFlow – California Universal Catalytic Converter – 2.00" (Part No.451004)
from
$373.99
MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 451004 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design, cutting and welding is required. 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 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.
Product Features:
See More
Product Features:
- Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Compact, lightweight construction enables installation in confined areas, welding is required
- Durable 308 stainless steel MIG welds
Walker – CalCat CARB Universal Catalytic Converter – 2.25" Inlet (ID) 2.25" Outlet (ID) (Part No.82522)
from
$699.99
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.
Product Features:
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Product Features:
- CARB COMPLIANT – For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state’s aftermarket converter regulations.
- SUPERIOR TECHNOLOGY – Optimal high technology wash coat formulated to deliver superior performance (as compared to EPA-compliant converters)
- CONSISTENT PERFORMANCE – Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
- DURABLE – Features stainless-steel body with aluminized pipe and heat shields for durability
- FLEXIBLE SOLUTION – Customizable design features expandable bushings for easy fitment and may require specialized fabrication and welding for installation
- BUY WITH CONFIDENCE – Backed by Walker’s 50,000-mile/80,000-kilometer emissions and structural integrity limited warranty
MagnaFlow – California Universal Catalytic Converter – 2.00" (Part No.454174)
from
$358.99
MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 454174 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design, cutting and welding is required. 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 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.
Product Features:
See More
Product Features:
- Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Compact, lightweight construction enables installation in confined areas, welding is required
- Durable 308 stainless steel MIG welds
Popular 2003 Mercury Marauder Catalytic Converters Categories
Most Popular Catalytic Converter for 2003 Mercury Marauders
Enhance your 2003 Mercury Marauder with this popular Catalytic Converter we have in stock, for $699.99.
Walker – CalCat CARB Universal Catalytic Converter – 2.25" Inlet (ID) 2.25" Outlet (ID) (Part No.82522)
from
$699.99
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.
Product Features:
See More
Product Features:
- CARB COMPLIANT – For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state’s aftermarket converter regulations.
- SUPERIOR TECHNOLOGY – Optimal high technology wash coat formulated to deliver superior performance (as compared to EPA-compliant converters)
- CONSISTENT PERFORMANCE – Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
- DURABLE – Features stainless-steel body with aluminized pipe and heat shields for durability
- FLEXIBLE SOLUTION – Customizable design features expandable bushings for easy fitment and may require specialized fabrication and welding for installation
- BUY WITH CONFIDENCE – Backed by Walker’s 50,000-mile/80,000-kilometer emissions and structural integrity limited warranty
FAQs for 2003 Mercury Marauder Catalytic Converters
What’s the price range for 2003 Mercury Marauder Catalytic Converters?
We currently have just one Catalytic Converters for the 2003 Mercury Marauder in stock: CalCat CARB Universal Catalytic Converter – 2.25" Inlet (ID) 2.25" Outlet (ID) and it costs $699.99.
Does Advance Auto Parts sell Catalytic Converters for any other 2003 Mercury models?
Yes. We stock Catalytic Converters for 1 other popular 2003 Mercury models. Some of the most popular are 2003 Grand Marquis Catalytic Converters and 2003 Mountaineer Catalytic Converters.
What types of Catalytic Converters do you sell for my 2003 Mercury Marauder?
We currently have just 1 Catalytic Converter in stock for a 2003 Mercury Marauder, and as of 11/2/25, it is a Catalytic Converter.
Can I get help with 2003 Mercury Marauder Catalytic Converter orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mercury Catalytic Converters and more.
What is your return policy for Mercury Marauder Catalytic Converters?
Advance Auto Parts keeps returns simple. For new Mercury Marauder Catalytic Converters and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.