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  1. #1
    x2ryder's Avatar
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    Thred size Ultra 150 head water fittings?

    Whats the thred size the the water fittings on a Ultra 150 head? I realize the innner size is 5/32. But My 1/4 straight fittings are too tight when I try and screw them in.


  2. #2
    steve45's Avatar
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    I don't remember, but this has been discussed before (at least on the Skiworx site). The threads are NOT NPT.

  3. #3
    x2ryder's Avatar
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    I figured it out. They are 1/8 x 27. Hey I thought only one of the fittings was 5/32. But when taking the oem fittings off the heads they all look to be 5/32?

  4. #4
    steve45's Avatar
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    Remember that one of the original fittings has an orifice in it.

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