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Optronics 7-Way Trailer Harness Plug Protector

Optronics 7-Way Trailer Harness Plug Protector

Item # ACP7B
Our Price: $10.38
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Optronics 7 Blade Accessories and Parts - ACP7B
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Safeguard your trailer wire connectors against moisture, dust, and corrosion with this plug protector. Secures to trailer to protect harness from impact and abrasion. Fits 7-way round connections. Hardware not included. 1-800-940-8924 to order Optronics accessories and parts part number ACP7B or order online at Free expert support on all Optronics products. Great prices and Fastest Shipping for Optronics 7-Way Trailer Harness Plug Protector. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (199)
  • Q & A (0)
  • Videos (2)
  • Photos
  • Why etrailer?

Optronics Accessories and Parts - ACP7B

  • Trailer Wiring
  • Wire Protection
  • Connector Covers
  • 7 Blade
  • Optronics

Safeguard your trailer wire connectors against moisture, dust, and corrosion with this plug protector. Secures to trailer to protect harness from impact and abrasion. Fits 7-way round connections. Hardware not included.


  • 7-Way plug protector safeguards your trailer wire connectors against moisture, dust, and corrosion
  • Secures to trailer to protect harness from impact and abrasion
  • Surface mount with four screws - hardware not included


  • Dimensions: 3-3/16" wide x 2-15/16" tall x 2-1/4" thick
  • 3-Year warranty

ACP7B Connect-to-Protect 7-Round Trailer Wire Connector Dust Cover

California residents: click here

Video of Optronics 7-Way Trailer Harness Plug Protector

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Optronics 7-Way Trailer Harness Plug Protector Installation

Adam: What's going on, everybody Adam here with each etrailer. Today, we're going to be taking a look at the Optronics 7 Pole Plug Protector.Over time, we are going to get a decent amount of dust and grime getting on the inside of our 7 pole. And that's going to not really get us the best connection, and we might see some shortages and something like that on our trailer. As you guys can see here, we've got a winch, a big battery, solar panel, and there's a couple of lights back there, too. Everything needs power, and this is how we get the power. So to be able to actually protect our plug, so we can not have to replace it so often, is definitely going to be a plus.

It's just going to slip right in here. Very, very simple and easy. So this is going to fit all your 7 pole connectors. It also has like a little tab here.So it's going to stay nice and tight and all we're really going to have to do to take it out is just kind of fold that back and wiggle it out. And then we can go ahead and plug it in.

But don't be worried if it's not going to fit your guys's, it is a very, very basic shape and it's going to fit quite nicely.It is going to be made of a pretty tough plastic. So it isn't going to fade or anything over time and it's not going to get any rock chips or anything like that. One thing to note, we are going to have dimensions with this product and it's going to be about three and three sixteenth inches wide. We're going to have about two and fifteen sixteenth inches tall, and it's going to be about two and a fourth inches thick.It really isn't too difficult to mount this up. There's a lot of different ways you guys can do it, put it wherever you want.

We are going to supply our own hardware. But what we're going to do here is just go ahead and show you guys how we installed it on our trailer today.So the first thing we want to do is to find the ideal spot to place the holder. So I have my 7 pole here. I think it's going to be best, especially when this is fold up. I think I'm just going to go ahead and put it down here somewhere and obviously make sure that our connection's going to fit and it does.

So that's good. So once we find out where we're going to put it, I found it best to go ahead and mark it with the drill bit.You guys can also achieve this by just getting like a paint marker or something like that. So what we're going to do is mark them all and we are going to have to supply our own hardware. So once we get these drilled out, we're going to grab whatever hardware we want to mount it up and we'll get going.Now we can go ahead and start mounting up our cover. Line it back up. And I'm actually just using some self-tappers. And with the drill, the hole drilled, it's going to make it a little bit easier to get them in there, but you guys can use whatever hardware is best for your guys's trailer.Once we have everything all mounted up, now we can just go ahead and slide our 7 pole into the little protector here.And that's basically it for our look at the Optronics 7 Pole Protector.

Customer Satisfaction Score:

Customer Reviews

Optronics 7-Way Trailer Harness Plug Protector - ACP7B

Average Customer Rating:  4.7 out of 5 stars   (199 Customer Reviews)

Safeguard your trailer wire connectors against moisture, dust, and corrosion with this plug protector. Secures to trailer to protect harness from impact and abrasion. Fits 7-way round connections. Hardware not included.


Overall I am very pleased with this addon. I was always putting the end up into the back of the pin box to keep it out of the weather. Now 2 wraps and plugs right end. Well worth the investment of like to keep things as good as new.

A year later and this item is still performing as new. No signs of weathering and all is good.
Ronald - 06/27/2022


This is a perfect holder for the trailer plug that attaches to our truck camper but dangles in front of the truck bed when not in use. I intend to attach it to the Xtang Folding Hard Tonneau Cover that is used when the truck camper is in storage. I intend to purchase a second holder for use with my camper trailer.


I mounted this product to the front of my winch stand for easy access to store my trailer power plug when not in use. It protects it from dirt and damage. Another great little product from etrailer!!! I highly recommend to all boaters with the round type plug.

This product has held up perfectly after a year of use and I would highly recommend it.
Billm - 07/21/2021


This is exactly what I was looking for and found it at A device to keep the trailer lights connecter clean and dry. Thank you.


Perfect addition to protect the trailer connector.


l bought 3 of these for my trailers - keeps the plugs off the ground, and keeps moisture and dirt out - great idea!

Awesome! These are so good for keeping the plug up off the ground where it can get damaged or get debris in it - plus it keeps it dry and out of rain, snow, etc.
Dan - 04/07/2022


These are exactly what I have been looking for to keep my plug ends clean and up off the ground. The plug ends fit nice and snug into them. Shipping was very quick especially since I am up in Canada.

Still working great! Such a simple inexpensive holder that does its job perfectly!!
David G - 05/13/2022


No more dirty plugs. Great product

Perfect protection for plug. And prevents shorts from trailer battery wire to trailer light wires that can be caused by water dirt in plug.
Scott - 11/05/2022


Excellent for docking and protecting the contacts on your 7-way trailer plug. I drilled and screwed this to the trailer A-frame with stainless steel self-drilling sheet metal screws to keep the connector plug from ending up down on the ground and getting corroded contacts.


Works great
Keeps all the dirt out and
keeps the plug in dry


this harness plug protector is handy as it keeps the plug end from being on the ground and getting damaged or full of dirt.


Works well made a bracket and used existing holes in my frame from previous hitch that I removed

I moved it to a new location because where it was at collected dirt when I was towing trailer
Les - 07/05/2020


I have these on each of my trailers. They install easily with self tapping screws. Do an excellent job of keeping plug end clean, dry, and off the ground.


Nice flexible rubber. Should last a long time.

Blocks water while stored, love it.
William - 06/02/2022


These things are great. They keep the plug from getting dirt and water damage when not in use while also keeping the plug and cable from lying on the ground.


They work great. Fast delivery. I bought from etrailer before and have always been very satisfied.


This worked out great for me, it works perfect for my application.


Good quality and works well

This has been a great product. It was easy to install and has proven itself through the winter and does what I wanted it for. Protecting the end of the plug
Carl - 05/30/2022


Thank you for the fast delivery! The seven pin holder worked perfectly. It mounted in less than 5 minutes. Good product to keep things neat and tidy!


easily accepts the connector and keeps it clean


Awesome idea, keeps all my trailer pigtails dry and organized. Very very pleased


A convenient way to protect your RV plu g.




A must for any RV with a 7 - way harness


Works great, keeps plug clean

Show More Reviews

See what our Experts say about this Optronics Accessories and Parts

  • Hardware Used to Mount Optronics 7-Way Trailer Harness Plug Protector
    You can use whatever hardware works best for you and the location on your trailer that you want to mount the Optronics 7-Way Trailer Harness Plug Protector # ACP7B. When we installed the protector in the linked video, we used Self-Tapping Screws 1/4 Inch # FA1131822.
    view full answer...
  • Recommended Electric Trailer Jack For a Boat Trailer Without Needing a On Board Battery
    For ease of installation and use I feel the Fulton XLT Powered Drive Trailer Jack # F141401 is going to work the best. This will bolt to a frame up to 3" wide and 5" tall so you will not need an adapter like you will with a A-Frame jack since you don't have the hole for it already. The 8" drop leg will greatly decrease the time it takes to raise your trailer. We do not test all the jacks for noise and speed as they can be different depending on the amount of load put on the jacks. The jack...
    view full answer...
  • Storage Covers For 7-Way Blade Trailer Connector To Protect against Corrosion
    I do have a couple options for you to consider. The first is the Fastway Tethered 7-Way Trailer Connector Cover # FA82-00-3315. This is a rubber cover that tethers to the 7-way that you can use to cover the end of the connector. Next is the Optronics 7-Way Trailer Harness Plug Protector # ACP7B. This mounts to your trailer and allows you to push the 7-way into the protector. This has the added benefit of holding the connector in a specific place when not in use. I do recommend using...
    view full answer...

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Info for this part was:

Employee Cole B
Installed by:
Cole B
Employee Adam E
Installed by:
Adam E
Employee Chris R
Video Edited:
Chris R
Employee Victoria B
Expert Research:
Victoria B
Employee Daron K
Edited by:
Daron K
Employee Brian T
Written by:
Brian T
Employee Aidan B
Video by:
Aidan B

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