EPA Ultra Universal Converter
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Walker EPA Ultra Universal Converter

Part No. 93256 Warranty Details  

Disclaimer: This product is not authorized to be shipped/picked-up CA.

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Walker® an industry leader for import and domestic applications, offers Walker® Ultra® Universal Catalytic Converters designed for OBDII (1996 and newer) vehicles. They are engineered for specific vehicle emissions requirements, and feature a high load of precious metals, optimal substrate content, and a high technology washcoat to provide premium performance, and durability to comply with EPA emissions requirements.

Product Features:
  • Designed for use on OBDII (1996 and newer) vehicles
  • Stainless steel body with aluminized pipe and heat shields for durability
  • Expandable bushings for custom installation requirements
  • Universal converter may require modification to complete installation
  • 25,000-mi catalytic performance & 5-year/50,000-mi structural integrity warranty
  • Meets EPA emissions requirements
  • Not legal for sale in California
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Body Length:13.000 in
Body Shape:Round
Body Width:4.375 in
Case Material:Stainless Steel
Height:4.500 in
Inlet Attachment Type:Pipe Connection
Inlet Inside Diameter:2.000 in
Inlet Quantity:1
Outlet Attachment Type:Pipe Connection
Outlet Inside Diameter:2.000 in
Outlet Quantity:1
Overall Length:17.500 in
Substrate Material:Ceramic


by PowerReviews
WalkerEPA Ultra Universal Converter

(based on 1 review)

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Reviewed by 1 customer

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from Palmyra Va

About Me Casual Driver

Verified Buyer


  • Easy To Install


    Best Uses

    • Everyday Driving
    • Replacement

    Comments about Walker EPA Ultra Universal Converter:

    Good for what it is. Super easy to install

    Comment on this reviewHelp Icon

    Do you have questions about this product?


    Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

    6 Questions | 6 Answers
    Displaying questions 1-6
    • Q:

      Which exit is the inlet or front of the catalytic converter
      Asked on 9/12/2013 by Enrique from Indiana

      1 answer



        With reference to your inquiry on the Walker Universal Catalytic Converter - Part No. 93256, you can use either side of the converter as inlet. For any further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and our representatives would be more than happy to assist you.

        Answered on 9/13/2013 by Morgan from AAP
    • Q:

      the overall length of the factory cat is 13 inches. this one is 17.5. So how do you maintain the original distance from the rear 02 sensor?
      Asked on 1/15/2013 by Andrew

      1 answer



        For further assistance regarding Walker Universal Catalytic Converter, Part No. 93256, please provide the year, make, model and engine size of your vehicle. This information would help us to assist you in a better way.
        For any further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and our representatives would be more than happy to assist you.

        Answered on 1/16/2013 by Aaron from AAP
    • Q:

      Part is listed as exact fit for 2003 Chevy Cavalier. However, the description states: "Modifications and/or additional parts required". What modifications and/or additional parts are required for product to fit a 2003 Cavalier?
      Asked on 10/26/2012 by Toby

      1 answer



        Sorry for any confusion caused. The Walker Universal Catalytic Converter - Part No. 93256 is not a direct fit but a universal fit that comes with a 2.00" inlet and outlet diameter. Your 2003 Chevy Cavalier needs a slightly bigger diameter (larger by 0.5") catalytic converter. So fabrication or welding may be required to install this part. Or else you can check the Walker Universal Catalytic Converter - Part No. 93238 which would be an ideal part for your vehicle. For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto store and one of our representatives will gladly assist you with any questions or concerns you may have.

        Answered on 10/29/2012 by John the Car-Doc from AAP
    • Q:

      reading error code P0420, replaced oxygen sensor, still engine light on. do I need a Catalytic Converter replacement?
      Asked on 6/2/2011 by justMyself from NY

      1 answer



        It is recommended to replace the catalytic converter with the oxygen sensors.

        Answered on 6/2/2011 by DIY Daniel from AAP
    • Q:

      Does this include an O2 sensor port?
      Asked on 3/3/2011 by Anonymous from New York

      1 answer



        No, it does not include the oxygen sensor port.

        Answered on 3/3/2011 by Parts Guru Geo from AAP
    • Q:

      what does low bank mean for the catalytic converter?
      Asked on 11/29/2010 by customer from tennessee

      1 answer



        Usually when "banks" are mentioned, it is refering to the oxygen sensors. Who told you about the low bank?

        Answered on 11/30/2010 by Mike the Auto Parts Master from AAP
    Displaying questions 1-6

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