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Third generation, transmission, drain, plug, washer, size?

Discussion in 'Gen 3 Prius Main Forum' started by Alan Winkler, Jun 5, 2023.

  1. Alan Winkler

    Alan Winkler Junior Member

    Joined:
    Jun 14, 2021
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    Location:
    Haslet Texas
    Vehicle:
    2013 Prius
    Model:
    Four
    First question do I need to replace the washer second question what size is it as nobody seems to carry it at the automotive parts store so I was going to just get a generic washer. I know the plug itself is a 10 mm size but what size of washer do I need?
     
  2. bettergolf

    bettergolf Active Member

    Joined:
    Jan 8, 2019
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    Location:
    Sanford NC
    Vehicle:
    2015 Prius
    Model:
    Two
    I changed mine 30k ago and just re-used what was there....no problems.
     
  3. Georgina Rudkus

    Georgina Rudkus Senior Member

    Joined:
    Sep 15, 2018
    3,096
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    Location:
    Taylors, SC
    Vehicle:
    2012 Prius v wagon
    Model:
    Two
    Washers are 18mm I.D. The plugs have an M18x1.5 thread.
     
  4. ASRDogman

    ASRDogman Senior Member

    Joined:
    May 29, 2018
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    3,137
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    Location:
    Florida
    Vehicle:
    2010 Prius
    Model:
    Two
    I've changed mine 3 times and re-used the washers.
    No leaks.

     
  5. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    54,474
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    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    I wonder sometimes why this needs saying:

    dealership parts department had the proper washer, and pick up Toyota ATF WS fluid (4 quarts) while you’re there.

    there’s a link in my signature on this.
     
    Paul E. Highway likes this.