Jackson Cuda – Scupper Transducer Bracket fabrication Mounting and Wiring for Fishfinder install

Here is my how to for the Jackson Cuda Scupper Transducer bracket and install.
I used the idea from here. http://www.scoutdoorsblog.com/2012/04/rig-cuda-garmin-150-install-part-1.html

1 Lowrance X-4 Pro Fish finder with transom mount transducer
1 piece of 1/2″ wide Aluminum stock
1 screw with washer and nut
Hardware that came with X-4
TH Marine Thru Cap for hull pass through deck wiring.

1 Tube of Marine Grade Silicone

Scupper Transducer mount fabrication

Cut aluminum stock for top of bracket (3″ Piece) Center Punch in center and Drill.
Drill Hole in longer piece for transducer mounting.


Measure the distance where the transducer hugs the hull inside the scupper to deck.

Cuda Scupper

Cuda Scupper


Cuda Scupper from underside

Cuda Scupper from underside

Add 3/4″ and cut.
Drill hole for angle top mounting between 3″ plate and soon to be angled piece. Then bend the 3/4″ area in a vice.


I painted mine to make it look nice.

Transducer mounted to fabricated bracket

Transducer mounted to fabricated bracket

Mount transducer in scupper.

Transducer mounted!

Pretty easy hope it doesnt come loose.


Transducer mounted from underside

Transducer mounted from underside


Transducer installed in scupper

Transducer installed flush in scupper


Full shot of hull

Full shot of hull

Then run the wiring thru the deck. Using the TH Marine Thru Cap and marine silicone to seal it. Warning: You dont need to apply much for a full seal. A bead around the top collar is more than enough.

Thru Bulkhead wiring

Thru Bulkhead wiring


Transducer and wiring thru bulkhead

Transducer and wiring thru bulkhead


Inside Yak bulkhead wiring

I hope you enjoyed this and are able to follow for the same mounting style! After testing it is far better than the usual inside kayak hull install. I can read accurate water temps and the imaging is much clearer.

Thanks for reading!

Matthew Trucks
Jackson Kayak Fishing Team

Comments on “Jackson Cuda – Scupper Transducer Bracket fabrication Mounting and Wiring for Fishfinder install”

  1. Harold
    February 13, 2013 at 1:14 pm

    You have shown me the way!

    Thanks, Matt

    1. July 29, 2013 at 6:02 pm

      Harold Glad i could be of help!

  2. March 19, 2013 at 11:04 am

    Hey there! I know this is somewhat off topic but I was wondering if you knew where I could get a captcha
    plugin for my comment form? I’m using the same blog platform as yours and I’m having problems finding one?
    Thanks a lot!

    1. March 25, 2013 at 3:15 pm

      The guy who would know is James Mcbeath. Like all of us here just email his first name ____@jacksonkayak.com Good Luck! Clay

  3. Richard Nettles
    July 14, 2013 at 11:56 pm

    Does the mount move around n the scupper hole? Is there anything stabilizing it from moving or spinning?

    1. July 29, 2013 at 6:00 pm

      Richard it actually creates sort of like a wedge. The scupper hole narrows as it goes in. I used those rubber bolt caps you can get at any hardware store and with the screw and washer on the top you tighten it till it is in place and wedged in where the transducer is mounted to the bracket.

  4. July 18, 2013 at 3:24 am

    Just forwarded to our tech guy – hope this helps!

  5. Dave
    November 2, 2013 at 3:27 am

    Where did you get the Cea cap? I have googled Cea cap and nothing but hats and this article comes up

    1. November 5, 2013 at 2:31 pm

      You can find the TH Marine Thru Cap at The Kayak Fishing Store If you have any other questions please feel free to ask.

      Jackson Kayak Fishing Team

  6. readtrio
    December 30, 2013 at 3:52 pm

    I want to mount mine this way. Looks great!!

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