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ISX cummins heater core shut off valves

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Bigtruckdrivah, Apr 5, 2021.

  1. Apr 5, 2021 #1
    Bigtruckdrivah

    Bigtruckdrivah Light Load Member

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    May 31, 2020
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    I have one leaking, ugh. They look like residential water bib valves lol. Is that what they are? I’m not finding any part #’s for this through google.
     
    Bigtruckdrivah, Apr 5, 2021
    Bigtruckdrivah, Apr 5, 2021
    #1
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  3. Apr 5, 2021 #2
    BoxCarKidd

    BoxCarKidd Road Train Member

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    Aug 26, 2014
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    No they are different. Pipe thread on one side and 5/8's or 3/4's hose barb on the other side. They come with the knob on different sides of the 90. If there is a nut on the fitting around the stem try to snugging it up some. If that does not work try backing the nut off all the way. Cut the seam off a shop rag and wrap around the stem once or twice, cut it and snug the nut back up.
    If it still leaks replace the valve.
     
    BoxCarKidd, Apr 5, 2021
    BoxCarKidd, Apr 5, 2021
    #2
    Bigtruckdrivah, God prefers Diesels and QUALITYTRUCK Thank this.
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