Category Archives: Fishing Boat Wiring Harness

Small Kit Too Small?

Hi there

We were looking at your Complete Small Boat Wiring kits for our small boat.

What do you suggest for people who need to install:crab puller

  • one crab puller
  • two electric downriggers
  • navigation and communication electronics
  • livewell pump
  • bilge pump
  • navigation lights
  • The three switch version seems a little small for this number of devices Could you please let me know if you agree?


Hi Kevin,

On small boats, crab pullers and down riggers are connected directly to the battery with circuit protection at the battery.

I agree that the three switch small boat system is too small for your application. Instead, you may want to consider one of our fully wired marine electrical switch panels which quickly snap together with one of our boat wiring harness. In your case, the five switch panel combined with a 15′-20′ harness should work great.

If you go with this setup, your new system would provide you all of the wiring needed for your livewell pump, bilge pump, and additional power for navigation and communication equipment.

Hope this helps,


Center Console Rewire

Greetings Ez,

I own a 1985 SeaCraft 19′ center console.

The wiring in the console is a spaghetti patch and so I’d like to replace the marine electrical switch panel on the console and mate it to one of your snap together boat wiring harness.

I’m also considering a possible rewire to the engine, an older Johnson 140 hp. The engine ID sticker is missing from the shaft, and I am looking for other locations on the engine for the vin#. Any help on that? It has an older VRO unit. Seacraft switch panel

Please advise.

Hi Steve,

Is the main wire connection for the boat harness a single molded plug or is it three, gray, deutsch connectors (two 6 ways and one 3 way)? This will help you determine the age of your motor (pre 1995 or post 1995). As you know, we don’t sell engine harnesses but there several on-line retailers that sell replacements.

I would use our links to wiring harness diagrams to determine which accessory harness would best fit in your boat. You can then combine the harness with either our panel rewire kit – which allows you to upgrade your existing switches and panel with new wiring – or one of our complete snap together pre-wired switch panels.

Hope this helps,


Glastron Harness

Good morning.

I just went to your site and am interested in your universal boat wiring harness.

I have a 1994 17.5 foot open bow Glastron with an I/O (135 hp) and am wondering if this harness would do the trick to rewire the boat? 1994 Glastron Dash

Any information would be helpful.



Our harness will work great for the accessory side of your boat wiring project. That is, it will provide new wires for your navigation lights, bilge pump, horn, docking lights, courtesy lights, and livewell pump – but you will need a separate harness for your engine control.

In addition to the accessory breakouts, our harness also includes a main power feed wire to supply power to your fuse panel.

Hope this helps,


Harness Adaptors

Hi …

I have questions about purchasing your company’s complete boat wiring harness with the snap together connectors.

I just took a 2002 Key Largo 206 center console in trade while selling my other boat. The wiring on this boat is pretty much a mess so I have been purchasing up all kinds of things to re-do it.boat wiring adaptors

I will be installing a Faria four gauge set with speedometer, tachometer, fuel, and volt gauges. The current panel has a switch with 4 toggles for navigation lights, livewell, automatic bilge pump, and one accessory switch. Each of these switches has an adjacent circuit breaker.

I will be installing a momentary horn switch in the panel. I intend to install a Blue Sea Systems 7650 “add a battery” setup and and a Blue Sea 5025 fuse block.


Does your whole boat wiring include the other side of the snap together plug or is the pigtail just straight wiring that connects to my setup, accessories, etc.



If you purchase the “snap together” option on our boat wiring harness, then the helm connection for the harness as a 12 position connector pre-installed and an adaptor comes with it. The snap together harness also includes snap together connectors for all of the accessories, adaptors, and tie wraps.

If you purchase the “doesn’t snap together” option, the helm connection and all other connections (except the battery) have bare ends. You install your own terminals and connect them to your devices.

Hope this helps,


Total Rewire Recommendations?


All that I can say is WOW!

I actually just found your website accidentally…It was one of those one link, to the next, and so on. Ultimately, it was Ed’s Boat Tips that led me to your site.

Here’s my potential boat wiring project. Starcraft Center Console fishing boat

I’ve got a 1970’s 22 foot Starcraft Center Console that has been trailer bound for years now – lack of money and twin young boys will do that to you!

Anyway, I’m the probably 2nd or 3rd owner of this boat, and since I’ve let it sit, everything has pretty muched turn to what rhymes with “sit”. It needs a new console, decking, etc. If I’m going to pull all of the old, I want the electrical to be as good as new, since prior owners had made it a bit of a rats nest, and, modern electrical is a heck of a lot nicer and better than what was being done in the 70’s.

I’ve reviewed your marine electrical stuff and have to say I’m quite impressed.

I’d like to put in a new switch panel and replace the boat electrical system from bow to stern, including new batteries, switches, the works with the exception of navigation lights and gauges.

I’m running a 140hp outboard Mercury. For accessories, all I’m running is, an automatic bilge pump, running and interior courtesy lights, a VHF radio, and a GPS/fishfinder. We had added a 12v “cigarette lighter outlet”, but I see that your panels come with the auxiliary outlet as a built in option. The boat was set-up at one point for dual batteries; a cranking and a deep cycle. I’d like to continue to use that set-up.

Could you please tell me which of your systems you’d recommend? I saw the new “complete switch panels”, and it mentions that they are pre-wired. I was a bit confused if this was just the panel wiring, or also included wiring for the whole boat as well.



Thank you for the kind words.

First, choose a switch panel. If one of them will fit in your available space, one of our pre-wired, snap together panels are the easiest install. The include all of the switch panel wiring, adaptors, mounting screws, and extra breakers. They do not come with the boat wiring harness that connect all of your boat’s accessories.

If you want to use your boat’s original switch panel or build you own, but need to replace the panel wiring, our Panel Rewire Kit will save you loads of time and money. Just like our wired panels, it will also “snap together” quickly and correctly with other parts on our site.

Whether you go with our panel or a rewire kit, the next step is to choose a snap together boat wiring harness that will plug directly into either one.

All of our harnesses come with all the adaptors necessary to connect to your existing lights and pumps. I would use either the 15′-20′ harness (diagram) or the 20′-25′ harness (diagram). All of the dimensions on the diagrams are in inches. Be sure to check the fit to make sure the breakout lengths will be adequate. Sometimes the available wire routing on a center console boat is longer than expected.

Please let us know if you have any questions,

Kevin Hannula


Thanks for the really quick follow-up.

I’m not sure how soon this project will come together, but now that I’ve got a better understanding of which components I’ll need, I can plan much better. I would think your longer harness will be the better bet as measurements just from the deck up to a switch panel could be a couple feet just by themselves.

I was always wondering when or if someone would go into the “boat wiring harness” business. This type of thing has been around for cars/trucks for a long time now, and seem to be down to a pretty good science. I think with boats it’s gets a little harder as true wiring diagrams, especially for older boats were never done, or since a lot of boats are ordered “custom” from the factory, it was never bothered to be done.

Your website and links have been saved. I hope to get working on this in the next few months.

Total Rewire. What Do I Need?

Hi Kevin,

I would like to know if I can get everything I need to completely rewire my boat through your company?

Basically, I want replace all of the boat wiring – bow to stern. Is there any chance you’d have some sort of check list or something?All round navigation light

Thanks for your help.


Thanks for your interest in our company’s products! At EzAcDc, we specialize in “universal” easy-to-install designs in electrical harnesses and panels, which cover many boat configurations and are built to OEM quality standards but still remain affordable.

We give a number of routes to go for rewiring and you will want to consider the options that follow.

First, do you want want to keep the original switch panel that is on your boat?

Most people do because many panels are a unique fit and look for that model boat. If that’s the case for you, you will want to start with our Panel Rewire Kit. It has everything that you need to replace the wire behind your panel while keeping the panel itself and all of the switches. The Rewire Kit comes with wiring and circuit protection for nine different boat functions, so it should work fine for almost all boats.

Once installed, it will “snap together” with any EzAcDc boat wiring harness. These harnesses range in length for boats from under 15’ up to 30’ in length, and have wiring for the eight most common accessories found on boats – or the seven most common in the pontoon version. Here are our harness schematic drawings to help you see what size will be right for you. My guess is the 20′ v-hull harness would be the closest fit to your boat.

Or, if you want to totally replace the existing switch panel or add more switches, you will want to start with our snap together marine electrical switch panels. These are fully loaded and wired – so you won’t need the panel rewire kit mentioned above – and they arrive completely ready to install. To give you the most options, your best bet would probably be our eight-switch panel, although we do make some smaller panels as well. Just like the rewire kit, our panels also “snap together” with any of our wiring harnesses.

Beyond that, we offer many other high quality accessories that will easily snap together with your new wiring system. These include LED Navigation Lights, Bilge Pump Systems, Livewell Systems for fishing, LED Docking Lights, boat horns, and our VERY popular LED Underwater Lights and Pontoon Underdeck Lights.

Finally, another extremely popular item we offer for fisherman and any boater who wants to maximize their time on the water without depleting their batteries is our great Automatic Smart Battery Switch system. Please check out this explanation on how it can give you more “water time” and peace of mind.

I hope that this gives you a decent idea of how to figure out which of our products will be best for you. We are always happy to answer your specific questions.

Thank you again!