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Looking to replace this part but don't know what it is called. Any help would be appreciated. Thanks.

http://s1341.photobucket.com/user/kay...b.jpg.html

Moderator note - Photobucket does not support 3rd party hosting links, forcing you to pay for upgraded membership. Please upload photo to post or pick different sharing site.

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It is a "Clam-Shell Ventilator". I used it on my console to feed wires from my GPS receiver and Depth Sounder down under. Here's a link to Perko's version. There are several sizes and hole configurations from various makers.

http://www.perko.com/catalog/ventilat...entilator/

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(and I KNOW that it is not the purpose of a clam-shell ventilator to feed wires ... but it made for a tidy installation ... and a big gob of silicone (one place where silicone makes sense) keeps it watertight.)

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Thanks! I have one on my livewell port under the boat. Is tat the right spot for one?

Also, can you elaborate more on how you used yours?

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I don't know about livewell ports. Is that an intake for water? Does it face open end to the bow of the boat? Or is it a drain?

Mine, I have a flat top on part of my console. I mounted my depthsounder/fishfinder on a bracket there, with a bolt through the console. The cables (two of them) are fed down into the console through one of these clam-shells. My clam-shell is mounted on the same flat surface. The open end faces the stern of the boat. With a glob of silicone in and around the cables, I have a waterproof entry into the console for the cables. It also looks great, like a professional did the install.

They make a specialized type of grommet for cables going through a wall or console of a boat. These grommet devices are super water-resistant and the usual method. But the way my cables lay, and the fact that I needed to add another later (a GPS receiver "antenna"), my solution worked great for me.

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Maybe I described incorrectly. It's the drain for the anchor compartment. There is a tube from the bottom of the locker to the bottom of the boat. The piece has the open end facing the back of the boat.

Also, I'm going to be rebuilding all the woodwork this winter including the console. Would you mind shooting a picture of your set up you described? Sounds like a good idea

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Kayaken as I can't see your picture due to Photobucket not letting 3rd party hosting (see Phil's posting) it is what what the Perko link says for ventilation used for decades on all types of boats and facing forward (opening aft) to keep water out. Often also used on the topside well above the waterline. Just to keep the atmospheric pressure equal to anything closed in a boat. (you can't suck through a straw if the glass isn't open)

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A clam shell vent installed to partially cover a thru hull tube creates a vacuum to pull water out when at speed.

This is a standard piece of hardware on some classic models.

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If this works, I am attempting to link pics from my Google account. Two of the pics show my clamshell vent in use on my console.

https://goo.gl/photos/Ae4DKCNYiHnLAv9r6YiHnLAv9r6