HomeExhaust > Catalytic ConverterAP Exhaust 776329 Catalytic Converter
Part #: 776329

AP Exhaust 776329 Catalytic Converter

4HNXT03.5EA6
⚙️ 6 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦4HNXT03.5EA6
🚗Fitment: Acura and Honda, MDX and Pilot
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AP Exhaust Catalytic Converter for Honda and Acura

AP Exhaust Part Number 776329 is a direct-fit catalytic converter for select California-emissions applications. It is built for the 2001 Acura MDX and 2003-2004 Honda Pilot, with fitment matched to the listed OE reference numbers and California EO compliance requirements.

Key Features

  • Direct-fit catalytic converter for specific Honda and Acura applications
  • California emissions compliant for listed vehicles
  • EO Number D-798-15 noted in fitment data
  • Application-specific replacement for 2001 Acura MDX and 2003-2004 Honda Pilot
  • AP Exhaust Part Number 776329 for catalog and service reference

Detailed Description

This AP Exhaust catalytic converter is intended for vehicles that require a California-compliant direct replacement. The fitment data covers 2001 Acura MDX, 2002 Acura MDX, 2003 Honda Pilot, and 2004 Honda Pilot, with notes identifying the exact OE cross-reference and emissions certification details. If you are sourcing a catalytic converter for a California-spec Acura MDX or Honda Pilot, Part Number 776329 provides a catalog-matched replacement path.

The AP Exhaust 776329 line is listed with California emissions compliance and direct-fit application data, making it a practical choice for repair work where the original converter must match the vehicle’s emissions configuration. This part cross-references OE-style application numbers 1HNXT03.5K86 and 2HNXT03.5KYT for the same application.

What It Helps Address

  • Failed catalytic converter emissions testing
  • Check engine light concerns related to catalyst efficiency
  • Replacement needs after converter damage or internal breakdown
  • Restoration of exhaust flow on listed Acura MDX and Honda Pilot models
  • California emissions compliance requirements for the covered vehicles

Installation Notes and Tips

Verify the vehicle year, make, model, and emissions configuration before ordering. This part is listed for direct-fit California applications only, so confirm the OE reference and EO compliance details against the vehicle identification label and existing exhaust layout. Professional installation is recommended to ensure proper sealing, sensor placement, and emissions-system function.

Quality Assurance

AP Exhaust lists this converter with California emissions compliance and EO Number D-798-15 for the specified applications. Review the vehicle’s emissions requirements and match the part number 776329 to the exact fitment shown for 2001-2002 Acura MDX and 2003-2004 Honda Pilot.

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2004HondaPilot3.5LV6N/ADirect Fit - California; 4HNXT03.5EA6; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number : D-798-15; 4HNXT03.5EA6; 4HNXT03.5EA6
2004HondaPilot3.5LV6N/ADirect Fit - California; 4HNXT03.5DAT; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number : D-798-15; 4HNXT03.5DAT; 4HNXT03.5DAT
2003HondaPilot3.5LV6N/ADirect Fit - California; 3HNXT03.5DAP; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number : D-798-15; 3HNXT03.5DAP; 3HNXT03.5DAP
2003HondaPilot3.5LV6N/ADirect Fit - California; 3HNXT03.5EA5; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number : D-798-15; 3HNXT03.5EA5; 3HNXT03.5EA5
2002AcuraMDX3.5LV6N/ADirect Fit - California; 2HNXT03.5KYT; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number : D-798-15; 2HNXT03.5KYT; 2HNXT03.5KYT
2001AcuraMDX3.5LV6N/ADirect Fit - California; 1HNXT03.5K86; ALL; Legal Note: In Compliance with California Emissions Requirements; EO Number : D-798-15; 1HNXT03.5K86; 1HNXT03.5K86

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