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Sensor(?) Thread Size

Discussion in 'Intermediate CJ-5/6/7/8' started by RustNeverJeeps?, May 15, 2018.

  1. May 15, 2018
    RustNeverJeeps?

    RustNeverJeeps? having a come apart

    Lake of the Ozarks
    Joined:
    Jun 25, 2016
    Messages:
    52
    Hi all. Broke this while installing my manifolds (slipped off of the studs - luckily I caught it!)

    Whatever it is (water temp sensor?) it wasn't in use and I don't intend to replace it, just plug it. The part thats broken off had 3 hose barbs coming off of it, which had plugged hoses on them.

    What I'm wondering is... it appears to have a gradually increasing thickness (like a cone) on the threaded area (what is that called??)

    What can I use to simply plug the hole in the block? Anyone know the size?

    Thank you (sorry for the rotated picture)[​IMG]
     
  2. May 15, 2018
    45es

    45es Active Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Naches, WA
    Joined:
    Mar 31, 2007
    Messages:
    1,103
    If you not going to replace it, just use a pipe plug with a thread sealant.
     
  3. May 15, 2018
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
    Joined:
    Aug 10, 2003
    Messages:
    23,596
    Jeep calls them CTOs (coolant temperature override). Otherwise known as TVS (thermal vacuum switch). The tapered thread is NPT (national pipe thread), likely 1/4" or 3/8" NPT. Home center or hardware store will have a pipe plug that size.
     
  4. May 15, 2018
    RustNeverJeeps?

    RustNeverJeeps? having a come apart

    Lake of the Ozarks
    Joined:
    Jun 25, 2016
    Messages:
    52
    Awesome. Thank you
     
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