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Garmin Intelliducer - Transom Mount-gctid811786

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  • Garmin Intelliducer - Transom Mount-gctid811786

    I recently purchased a used Garmin GPS chartplotter from a friend of friend and found out that it's a NMEA 2000 unit. As such, it looks like I need to purchase a transducer that is NMEA compliant in order for it to communicate. I checked into what was available, and of course, experienced sticker shock! The in hull (not thru-hull) NMEA transducer is $400+ (2x as much as I paid for the Garmin unit)! After some surfing, I found a transom mount "Intelliducer" that should work for $100. In the past, with my older Garmin unit, I have taken a transom mount transducer and mounted (silicone) in the bottom of my bilge and everything worked great! Now question is this: Not knowing much about the NMEA compliant Intelliducer, can I do the same thing with it - Silicone it to the bottom of my bilge and run it to the "backbone, then to the back of the Garmin? Hopefully someone has experience with this and can help!

  • #2
    Welcome to the BOC. Have you called Garmin? My experience with their tech line has been very positive. They didn't ask how or where I bought the unit, just the model number, from there it was all about making me a happy customer. When we bought our 3818 with 1988 electronics, I called to get non sales information about what products I should be looking at for the lower helm with repeaters on the flying bridge. The techie explained how the NEMA 2000 works and that I can use my iPad as the repeater.
    P/C Pete
    Edmonds Yacht Club (Commodore 1993)
    1988 3818 "GLAUBEN”
    Hino EH700 175 Onan MDKD Genset
    MMSI 367770440


    • #3
      What model is your Garmin chartplotter. It may have a separate input for a transducer and a drop-cable connector for NMEA 2K. Check the back of the chartplotter and also its installation guide.
      Retired, computer expert / executive
      Bayliner 285 Cruiser / Mercruiser QSD 4.2L 320 HP Diesel
      Live in the Bay Area, CA, USA, boat in Turkey
      D-Marin @ Turgutreis in Bodrum/Turkey
      [email protected]
      [email protected]


      • #4
        I have a new 12" Garmin and almost any Garmin transducer will work, mine has a 12 pin and an 8 pin transducer connection.

        I am mounting my transom mounted transducer in the hull in a box with liquid until I can haul out and do a thru the hull mount.

        The NEMA has to do with the NEMA port, I also have DVI and Ethernet (2) as well as video ports.
        Pat says: DO-IT-RIGHT THE FIRST TIME!

        Bayliner 3870 "ALASKA33)
        Twin 350 GM power
        Located in Seward, AK
        Retired marine surveyor