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Replacing depth finder

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I need to replace my lowrance 3500 depth finder in my '97 sunsetter. The problem is locating a transducer that will fit in the factory thru-hull location. Has anyone found a replacement? I have considered purchasing a Humminbird depth finder with a "puck" thru-hull transducer and install the transducer close to the original. Not sure how well it will work due to hull thickness. Any help will be appreciated.

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is the lowrance transducer bad?

if the transducer is ok you might consider swapping the display / electronice w another lowrance w a similar connector.

i think the transducer is frequency dependent so you would need to check all of the specs.

might save you some tinkering on the hull.

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Just buy a new depth finder with the puck. Glue the new puck next to the old transducer and you will be fine. I did the same thing a a couple of months ago and it works perfect

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