HomeExhaust > Catalytic ConverterAP Exhaust 641553 Catalytic Converter with Integrated Exhaust Manifold - Front
Part #: 641553

AP Exhaust 641553 Catalytic Converter with Integrated Exhaust Manifold - Front

Front
⚙️ 6 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mazda, 3
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AP Exhaust Catalytic Converter with Integrated Exhaust Manifold Overview

The AP Exhaust catalytic converter with integrated exhaust manifold (part number 641553) is designed specifically for Mazda 3 models. Constructed from durable stainless steel, this federal/EPA direct-fit catalytic converter ensures reliable emission control and a precise fit for your vehicle.

Key Features of AP Exhaust 641553 Catalytic Converter

  • Body material made from corrosion-resistant stainless steel
  • Includes inlet gasket and inlet hardware for secure installation
  • 7 bolt welded manifold inlet type for direct fitment
  • Equipped with 2 O2 sensor ports for accurate emissions monitoring
  • Outlet features a 2 bolt welded flange with included outlet gasket
  • Overall length of 34 inches for proper exhaust flow
  • Ceramic substrate material for effective catalytic conversion
  • Federal/EPA direct-fit design compliant with emissions standards

Detailed Description of the AP Exhaust 641553

This catalytic converter with integrated exhaust manifold is engineered to meet federal and EPA emissions requirements for the Mazda 3. The stainless steel body provides long-lasting resistance to rust and corrosion, while the ceramic substrate efficiently reduces harmful exhaust gases. The 7 bolt welded manifold inlet and 2 bolt welded flange outlet ensure a secure and precise fit, minimizing exhaust leaks. Two O2 sensor ports allow for proper sensor placement, maintaining engine performance and emissions control. The included inlet gasket and hardware facilitate installation on compatible Mazda 3 vehicles.

Common Applications and Problem Solving

  • Replacement for damaged or clogged catalytic converters on Mazda 3
  • Restores proper exhaust flow and reduces harmful emissions
  • Addresses check engine light issues related to O2 sensor readings
  • Eliminates exhaust leaks caused by manifold or flange damage
  • Ensures compliance with federal and EPA emissions standards

Installation Notes and Tips

When installing the AP Exhaust catalytic converter 641553 on a Mazda 3, ensure all gaskets are properly seated to prevent exhaust leaks. The 7 bolt welded manifold inlet requires careful alignment with the exhaust ports. Use the included inlet hardware to secure the unit firmly. Note that outlet hardware is not included and may need to be reused or replaced separately. Verify O2 sensor port locations before installation to maintain sensor functionality.

Quality Assurance and Warranty Information

AP Exhaust catalytic converters are manufactured to meet federal and EPA standards for emissions control. The stainless steel construction and ceramic substrate provide durability and consistent performance. While specific warranty details are not provided here, AP Exhaust products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.

BrandAP Exhaust
Part Number641553
Body MaterialStainless steel
Inlet GasketYes
Inlet HardwareYes
Inlet Type A7 bolt welded manifold
O2 Sensor Ports2
Outlet GasketYes
Outlet HardwareNone
Outlet Type A2 bolt welded flange
Overall Length (IN)34
Substrate MaterialCeramic
TypeFederal / epa direct-fit

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2013Mazda32.0LL4FrontDirect Fit; (10-11); California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME, NY. Restrictions may apply in other states. Check with your state authority for details.
2012Mazda32.0LL4FrontDirect Fit; (10-11); California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME, NY. Restrictions may apply in other states. Check with your state authority for details.
2011Mazda32.0LL4FrontDirect Fit; (10-11); California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME, NY. Restrictions may apply in other states. Check with your state authority for details.
2011Mazda32.0LL4FrontDirect Fit; California Emissions, Manifold Unit; California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME, NY. Restrictions may apply in other states. Check with your state authority for details.
2010Mazda32.0LL4FrontDirect Fit; (10-11); California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME, NY. Restrictions may apply in other states. Check with your state authority for details.
2010Mazda32.0LL4FrontDirect Fit; California Emissions, Manifold Unit; California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME, NY. Restrictions may apply in other states. Check with your state authority for details.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

LFE42050XB

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.