Oil Seal
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National Oil Seal

Part No. A-20 Warranty Details  

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Designed to provide enhanced endurance and maximum contamination exclusion while ensuring proper fit, form and function.
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Inside Diameter:1.5625 in
Outside Diameter:3.1483 in
Stand Out:0.1626 in
Width:0.7636 in

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2 Questions | 3 Answers
Displaying questions 1-2
  • Q:

    Is this inner or outer bearing?
    Asked on 9/30/2013 by Hawk from Blountville,Tn

    1 answer



      Hi Hawk, the National Oil Seal (Part No. A-20) is a outer bearing. For any further assistance, please feel free to 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 10/1/2013 by Steve from AAP
  • Q:

    Asked on 9/20/2010 by BARNY from INDIANA

    2 answers



      I do not believe so.

      Answered on 9/20/2010 by Mike from AAP
    • A:

      It appears the A20 version does not come with a seal, even thought the SET20 version does. Not sure why this is, since they have the same application.

      Answered on 4/2/2013 by Eddie from Texas
Displaying questions 1-2

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