EPA Ultra Direct Fit Converter
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Walker EPA Ultra Direct Fit Converter

Part No. 54478 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® Direct Fit 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
  • Flange to flange, direct fit design bolts to existing exhaust
  • High precious metal load and high technology washcoat for premium performance
  • Stainless steel body with aluminized pipe and heat shields for durability
  • Thick OE-style flanges, hangers and brackets for enhanced strength
  • OE-style routing and hanger position for easy 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 Type:Round
Case Material:Stainless Steel
Inlet Attachment Type:3 Bolt Welded Flange
Inlet Quantity:2
Outlet Attachment Type:2 Bolt Welded Flange
Outlet Quantity:1
Overall Length:37.125 in


by PowerReviews
WalkerEPA Ultra Direct Fit Converter

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



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  • 1 Stars



Reviewed by 1 customer

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Good product. Passed emissions test.


from Chicago, Il

Verified Buyer


  • Easy To Install


  • No Increase In Performance

Best Uses

  • Everyday Driving
  • Replacement

Comments about Walker EPA Ultra Direct Fit Converter:

Enabled me to pass emissions test.

  • Car & Truck:
  • Casual Driver

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Do you have questions about this product?


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2 Questions | 2 Answers
Displaying questions 1-2
  • Q:

    Asked on 7/19/2013 by John from Bowie, MD

    1 answer



      With reference to your inquiry on the Walker Catalytic Converter - Ultra Direct Fit -part# 54478, price of the items can vary from zone to zone as our prices are zonal based. You can view the cost of the items only after entering your zip code. Once the zip code is entered the zone is assigned and will remain the same for the entire session. The prices are subject to change depending on the area in which you are located. Once you enter your Zip Code into the Advance Auto Part’s website you will see the accurate price for the product. For any further assistance, you may also call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

      Answered on 7/19/2013 by Vincent from AAP
  • Q:


    I need toreplace the catalytic converter on my nissan altima 2002, 3.5 SE V6. My mechanic mentioned i need to replace both the driver side and the passenger side converters.
    Now the convertoer i picked here (Direct-FIT catalytic converter by walker), does it inlclude both the driver and passenger side?
    If not , can you please xplain what do i need to buy?

    Asked on 10/4/2010 by Anonymous

    1 answer



      It depends. You vehicle has more than two catalytic converters. I believe that the ones you need are part #33197. #33197 will fit for either side.

      Answered on 10/20/2010 by Mike the auto parts master from AAP
Displaying questions 1-2

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