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  1. #1

    Default Radiator Fitment Issue!

    I just replaced my factory '98 Z71 factory radiator with a Delphi RA20109, per the Delphi catalog. However, below the overflow tank nipple, there is another, larger nipple that my OEM tank did not have. What is this for and what can I do to make this work...
    '00 Silverado Black Z71 Ext. Cab 5.3L 135K

  2. #2
    Sr. Engineer
    Join Date
    Dec 2011
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    Default

    Looked at your rad. on the web. Have to get a rubber cap and put a clamp on it.
    That is for older vehicle heater hose.

  3. #3

    Default

    Ideas on a cap? I clamped it with a hose and knob but its leaking....

  4. #4
    Sr. Engineer
    Join Date
    Dec 2011
    Location
    11-22-boogie woogie avenue
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    Default

    Yeah... at auto parts they have rubber plugs assortment pack.. work great.

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