HomeExhaust > Catalytic ConverterAP Exhaust 644164 Catalytic Converter - Rear
Part #: 644164

AP Exhaust 644164 Catalytic Converter - Rear

Rear
⚙️ 21 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 for Mazda 3

The AP Exhaust catalytic converter part number 644164 is designed specifically for Mazda 3 models, providing a direct-fit replacement that meets Federal and EPA standards. Constructed from durable stainless steel, this catalytic converter ensures reliable performance and longevity.

Key Features of AP Exhaust Catalytic Converter 644164

  • Body material made of corrosion-resistant stainless steel
  • Federal / EPA direct-fit design for Mazda 3
  • Overall length of 75 inches for precise fitment
  • 2 bolt welded inlet and outlet types for secure connections
  • Includes one clamp, inlet and outlet gaskets, and inlet and outlet hardware

Detailed Product Description

This AP Exhaust catalytic converter (part number 644164) is engineered to replace the factory catalytic converter on Mazda 3 vehicles. The stainless steel body offers enhanced durability against rust and corrosion, extending the service life of the exhaust component. The inlet and outlet connections feature 2 bolt welded flanges, ensuring a tight and secure fit to the existing exhaust system. With an overall length of 75 inches, this converter is designed to match OEM specifications for a seamless installation. The product includes one clamp, inlet and outlet gaskets, and the necessary hardware for both inlet and outlet connections, facilitating a straightforward replacement process.

Common Applications and Issues Addressed

  • Replacement for faulty or clogged catalytic converters on Mazda 3
  • Restores proper exhaust emissions control to meet Federal and EPA regulations
  • Eliminates exhaust leaks caused by damaged or worn converter components
  • Improves engine performance by ensuring efficient exhaust flow
  • Resolves check engine light issues related to catalytic converter failure

Installation Notes and Tips

When installing the AP Exhaust catalytic converter 644164 on a Mazda 3, ensure all gaskets are properly seated to prevent exhaust leaks. The 2 bolt welded inlet and outlet flanges require precise alignment for secure fastening. It is recommended to inspect the surrounding exhaust components for wear or damage during installation. Proper torque specifications should be followed for all hardware to maintain a reliable seal and avoid premature failure.

Quality Assurance and Warranty

AP Exhaust catalytic converters are manufactured to meet Federal and EPA standards, ensuring compliance with emissions regulations. The stainless steel construction provides resistance to corrosion and heat, contributing to product durability. Warranty details are subject to the manufacturer's terms and conditions.

BrandAP Exhaust
Part Number644164
Body MaterialStainless steel
Clamp Qty1
Inlet Gasket Qty1
Inlet HardwareYes
Inlet Type A2 bolt welded
Outlet Gasket Qty1
Outlet HardwareYes
Outlet Type A2 bolt welded
Overall Length (IN)75
TypeFederal / epa direct-fit

This part fits 21 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2013Mazda32.0LL4RearDirect Fit; (PZEV, Complete Assembly); Federal and 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.; Includes Resonator Pipe
2013Mazda32.0LL4RearDirect Fit; Complete Assembly; Federal and 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.
2013Mazda32.0LL4RearDirect Fit; With PZEV Emissions, Complete Assembly; Federal and 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.
2012Mazda32.0LL4RearDirect Fit; (PZEV, Complete Assembly); Federal and 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.; Includes Resonator Pipe
2012Mazda32.5LL4RearDirect Fit; (PZEV, Complete Assembly); Federal and 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.; Includes Resonator Pipe
2012Mazda32.0LL4RearDirect Fit; Complete Assembly; Federal and 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.
2012Mazda32.5LL4RearDirect Fit; Complete Assembly; Federal and 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.
2012Mazda32.5LL4RearDirect Fit; With PZEV Emissions, Complete Assembly; Federal and 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.
2012Mazda32.0LL4RearDirect Fit; With PZEV Emissions, Complete Assembly; Federal and 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.
2011Mazda32.0LL4RearDirect Fit; (PZEV, Complete Assembly); Federal and 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.; Includes Resonator Pipe
2011Mazda32.5LL4RearDirect Fit; (PZEV, Complete Assembly); Federal and 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.; Includes Resonator Pipe
2011Mazda32.0LL4RearDirect Fit; With PZEV Emissions, Complete Assembly; Federal and 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.
2011Mazda32.0LL4RearDirect Fit; Complete Assembly; Federal and 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.
2011Mazda32.5LL4RearDirect Fit; Complete Assembly; Federal and 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.
2011Mazda32.5LL4RearDirect Fit; With PZEV Emissions, Complete Assembly; Federal and 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.
2010Mazda32.0LL4RearDirect Fit; (PZEV, Complete Assembly); Federal and 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.; Includes Resonator Pipe
2010Mazda32.5LL4RearDirect Fit; (PZEV, Complete Assembly); Federal and 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.; Includes Resonator Pipe
2010Mazda32.0LL4RearDirect Fit; With PZEV Emissions, Complete Assembly; Federal and 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.
2010Mazda32.0LL4RearDirect Fit; Complete Assembly; Federal and 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.
2010Mazda32.5LL4RearDirect Fit; With PZEV Emissions, Complete Assembly; Federal and 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.
2010Mazda32.5LL4RearDirect Fit; Complete Assembly; Federal and 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:

LFE42055XB

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