I bought my first boat last year which is a Alumacraft 16 footer with a side console, but the Lowrance fish finder did not power up, so I bought a entry level Humminbird to replace it with.  I installed the new unit, but had to go right into the transom with the transducer, just like the old unit was mounted.  I was able to use one of the two original holes, but had to make a new one and fill the old one.  Now I would like to pull it off, fill the old holes with silicone and a screw, mount the transducer mounting board and reinstall the transducer.

 

Where can I buy the mounting board?

Iam thinking about upgrading the new fish finder with a newer fish finder and moving the new fish finder to the front of the boat, but I don't want to put more holes in the transom for the new transducer.

Thanks, I really appreciate it.

Bass Pro has them

search "Transducer Mounting Plate"

Thanks, I appreciate it.  It just so happens that we are going there next weekend.

Humminbird sells a transducer that uses double sided tape for mounting.

http://store.humminbird.com/products/313992/XSO_9_20_T

here is the tape. http://solutions.3m.com/wps/portal/3M/en_US/VHB/Tapes/

No heed to drill holes. I would thing this would work with a regular transom transducer.

There is another solution to the problem of mounting a transducer on an aluminum boat.

I had broken 5 brackets and 2 transducers on my Lowe aluminum boat.  This stuff was getting old.  Something had to change.

Vexilar, an electronics company out of Minnesota, makes a product called the Alumaducer.  It mounts inside the hull and allows you to shoot a signal through an aluminum hull.  It is compatible with many different brands of electronics via adaptor cables.

Researching this product was a pain in the butt.  No aluminum boat company wanted to talk about it.  No other electronics company wanted to talk about it.  Finding dealers was a challenge.

Finally, I found a company in St. Louis, Tri-State Trolling motor repair had had experience installing this item.  I asked their sales people how the product worked, they said they didn't really know, but that they had installed ten or twelve of them and no one had come back to complain, so he figured they worked OK.

In 2007, I bit and had one installed in my Lowe, as part of a major electronics upgrade.

It works great.  I used to not get worried when I was around a multitude of stumps and such.  Now I sneer at them.  I 'll probably bust other stuff on my boat from time to time, but I'll never break another transom mount transducer.

If you're doing a mounting a depth finder on the console, check out the Alumaducer.  My experience is that it works good.

Fishes in trees, I have an Alumaducer in my Tracker hull also, it works great.

Alumabass, you have to drill holes in your boat to mount the transducer mounting board you so you would not be eliminating drilling more holes. The board just allows for multiple mounts of sensors without additional screws in the hull.