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Thread: 78 TE31 gas tank o-rings/seals

  1. #1

    78 TE31 gas tank o-rings/seals

    Where can I get the orings for the gas tank?

    Looks like two are the same size (fuel sender and filler neck), and then
    the main gas feed/vent at the top is slightly smaller.

    Please don't say "go to a parts store". I actually work in auto parts and have searched high and low at my store, plus my competitors with no luck.

    Everything is either the wrong ID/OD (and ends up leaking, or breaking the O-ring from being stretched), or is too thick (cross section) so I can't get the lock ring in place.

    I found one that I *might* be able to make work for the gas feed at the top, but not the others.

    Does anybody know what the exact dimensions of these should be? ID/OD and cross section.

    Please advise guys! I know someone has replaced these things!

  2. #2
    Member
    Join Date
    Jun 2013
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    Oakland, CA
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    42

    Re: 78 TE31 gas tank o-rings/seals

    Try searching around on this site...

    http://www.toyotapartszone.com/Page_Pro ... 5=MTM;6=4F)&originCountry=(10=USA)&sectionID=&componentsID=7 7-01

  3. #3

    Re: 78 TE31 gas tank o-rings/seals

    The original parts are non existent. I tried ordering them through a friend that works for Toyota before I made this post.

    I ordered a bunch of similar sizes online and tried them all. Found some that work.

    For future reference and searchability:

    http://Www.theoringstore.com

    #B70331 x 2 (please note you have to order at least 4, though, as the manufacturer has a minimum order on each number). This size works for the filler neck and the sender.

    #B70329 x 1 (again, you'll see a minimum but they're ridiculously cheap). This size works for the center/top feed/return line unit.

    Hope this helps someone in the future.

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