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Optronics 7-Way Trailer Harness Plug Protector

Optronics 7-Way Trailer Harness Plug Protector

Item # ACP7B
Our Price: $11.27
Accessories and Parts
Shipping Weight: 0.17 lbs
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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.
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  • Reviews (233)
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  • Videos (2)
  • Photos

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   (233 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.


Plug protectors make so much sense they should be standard on every trailer. When plugs are protected from the weather, there are less surprises when you hook the trailer to go. Keeps the dirt and bugs out of the plug.


The product was exactly what I was expecting. It fit my 7 way trailer plug perfectly. I did use my own screws. The only issue I had was that USPS was very slow on picking up the package from etrailer.


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.


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.


Keeps the plug dry and dirt free. Trailers are parked on a gravel driveway. With the use of dielectric grease for better contact, the plug parking cover prevents dust from building up or water entering the plug causing corrosion.


Nice, must have product. It's made of a heavy duty a rubber.Latch is flexible enough to release the trailer plug but stiff enough to hold trailer plug. It is going to mounted on my square trailer jack to keep out moisture and dirt. I intend to purchase a second holder for use with my 5th wheel trailer.


Simple and easy to install, perfect fit and a must have to keep and protect! Installed in this manner to avoid water and or dirt build up inside.


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

Monte E.


I have one on each of my trailers. They keep the plug end from getting damaged or dirty and from hanging on the ground.


Just what I expected. Protect the plug.


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.


Perfect for protecting my trailer plug end


Easy to install. Easy to use. Great pri ce!


A convenient way to protect your RV plu g.



Still very pleased. I was wondering how keeping the harness inside the car and having to just hang it out the back when I used it would work out. Turn out that for infrequent use like this gets thats really a good option.


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.



Best thing you’ll ever buy for your trailer connector.


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.


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


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!



It works great! It keeps dirt and moisture out of my plug! I’ve had zero problems with my connection.


Very functional. The plastic tab that will hold your trailer plug is just about right in terms of flexibility. Do be aware that the protector requires a flat mount. You will not be able to wrap it around the shaft of your trailer jack. It would be nice if they would offer a model that had a curvature as well.


Keeps plug dry and out of the dirt. Mounted on frame of trailer


Fast shipping.Thesewill workgreat.


exactly as described, thanks etrailer.


Excellent product , easy to install.


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.


Great product. Perfect for protecting your trailer plug from damage and weather






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Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Victoria B
Expert Research:
Victoria B
Employee Cole B
Installed by:
Cole B
Employee Adam E
Installed by:
Adam E
Employee Chris R
Video Edited:
Chris R
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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