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  1. #1

    Default Mercruiser 8.1L Coolant Reservoir Testing

    Purchased a STANT Engine Coolant System Pressure Tester PN 12270
    Does anyone know the part number for the adapter to connect to Mercruiser 8.1L Coolant Reservoir?

  2. #2
    Join Date
    Sep 2008
    Location
    Maryland - USA
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    Default Re: Mercruiser 8.1L Coolant Reservoir Testing

    best thing to do is to measure the thread size on the reservoir and then look up the adapter.

    12026 is very likely to be it....but I've never tried in on an 8.1....

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