bing tracking image
  1. Accessories and Parts
  2. NOCO
  3. Battery Charger
  4. Plugs and Sockets
NOCO AC Port Plug with Extension Cord - 16" Long

NOCO AC Port Plug with Extension Cord - 16" Long

Item # 329-GCP1
lowest price pledge
Our Price: $22.95
You Save: 46%
Accessories and Parts
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.78 lbs
In Stock
329-GCP1 - Plugs and Sockets NOCO Accessories and Parts
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
Low-profile port plug lets you create a pass-through outlet for easy access to an AC charging port on your truck, boat, RV, or trailer. Pressure-fit cap provides a waterproof seal. 1-636-306-4830 to order NOCO accessories and parts part number 329-GCP1 or order online at Free expert support on all NOCO products. Guaranteed Lowest Price and Fastest Shipping for NOCO AC Port Plug with Extension Cord - 16" Long. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (39)
  • Q & A (0)
  • Videos (3)
  • Photos
  • Used (1)
  • Why etrailer?

NOCO Accessories and Parts - 329-GCP1

  • Battery Charger
  • Plugs and Sockets
  • NOCO

Low-profile port plug lets you create a pass-through outlet for easy access to an AC charging port on your truck, boat, RV, or trailer. Pressure-fit cap provides a waterproof seal.


  • Low-profile port plug creates a connection point for easy access to an AC charging port
    • Plug-and-play connection - no hand wiring or modifying cables needed
    • Perfect for engine block heaters, battery chargers, RV and marine charging ports, and home improvement applications
  • Full-size AC prongs provide full contact for maximum conductivity
  • 14-AWG copper wire allows maximum current flow
  • Pressure-fit cap creates a tight seal to protect the plug against dirt, water, and debris
  • Simple flush-mount installation with included self-tapping screws
    • Requires a 2" diameter cutout
  • UL certified


  • Port plug dimensions: 3-1/8" diameter x 2-1/8" deep
    • Recessed depth: 1-13/16"
  • Extension cord length: 16"
  • Amp rating: 15 amps
  • Voltage rating: 125 volts
  • 1-Year limited warranty

NOCO GCP1 AC Port Plug with Extension Cord Dimensions

GCP1 NOCO Accessories AC Port Plug with Extension Cord - 16" Long

Installation Details 329-GCP1 Installation instructions

California residents: click here

Video of NOCO AC Port Plug with Extension Cord - 16" Long

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

Video Transcript for NOCO Accessories AC Port Plug with Extension Cord Installation - Enclosed Trailer

Hey guys, Kevin here with etrailer. And today I'm gonna be showing you how to install the NOCO AC Port Plug with extension cord, here on our enclosed trailer. Our NOCO AC Port comes with a nice pressure fit waterproof cap. That's gonna provide protection against any water getting in and damaging your electronics or rusting out our prongs that are here on our port itself. So our neighbor has a race trailer here today and he has some issues with keeping his battery charged, when it's just sitting at his house. Since he doesn't have a 30 amp hookup, to use with his shore power cable that he has sitting right here.

And he doesn't really wanna lug that heavy cable, all the way over to his house. He just wants to take a smaller 15 amp power cord and just run that up to plug-in and charge his battery. So what we did today was install the NOCO AC Port Plug, which easily allows him access to a 15 amp prong, and then an extension cord that he can run to a NOCO battery charger, that can just sit in his trailer and power his battery, anytime he needs it to. We have a smaller cord on our charger today. This is actually the 16 inch, but this also does come in a variety of different sizes, like six foot or twelve foot.

And there's also a second option where it'll come with two different cables for you, in case you need to plug-in two different things and charge them. This is really good for some of your smaller campers. Maybe you have a enclosed trailer that you're turning into a camper. So you can take out on the road with you with a smaller car and you just need to get some extra power. This will give you a really easy hookup, anytime you need it.

Because this is all an enclosed wire. There's no hard wiring that you're gonna need to do. You're not gonna need any wire cutters or strippers or anything like that. It's a simple plugin operation. It's also gonna come with the three screws that you need.

So the only thing you're really gonna need to complete this installation is just a whole saw to get through whatever kind of wall that you're gonna be cutting through. And then just a Phillips head bit for your screw gun to actually mount the port. So placement of our port is gonna be super important here, just because we're gonna be running this up to a battery charger. Just so that we can maintain our battery, while the trailer's sitting during the week, when our neighbor's not using it. So I'm thinking right around here is gonna be pretty good. That'll gimme enough room with our sixteen inch extension cord to run up to the actual charger itself and then down over to our battery. So. now that we have that marked out, we can go ahead and start making our hole. To cut our hole, I'm gonna be using a two inch hole saw. It's just big enough to make it around the port and our plug without actually being too large to where we're gonna interfere with our holes here for mounting. Punch through on our other side. And now I'm gonna come back through with my pilot hole and line it up, and punch through from this side, just so we have a cleaner cut on our metal here. So I kind of test fit our plugin here, and our cord is this gonna be in the way, just a little bit. So I'm gonna take a grinder and just kind of notch this out, just a little bit, so our cords can get through a little bit easier. Now with that grinder down a little bit, let's go ahead and stick our extension cord through. As you're putting this in, make sure you have your gasket turned correctly, just so that the holes line up. We wanna make sure that we're keeping our water seal here, when we're putting this in. And we can go ahead. Your three screws that come with your kid are gonna be Phillips head. We can start shooting those in. When you're doing this, make sure that you don't overdo it, and then end up cracking your plastic housing here. But ,that should be it for the screws. Even though there is this rubber gasket around here, I'm still gonna come back with some clear silicone, and just go around those, just to ensure that we don't have any water leaking into our trailer. Go real light, because when I start spreading this, it's gonna be everywhere. So I already have an extension cord running up to the outside of our port. I'm gonna plug in our battery charger. And then we can run this down to our battery. As you can see, it just kicked on. We have power going to it. So we know our port's working. And I can run this down to our battery. And we can start getting a charge going. As you can see, we're displaying red and it's flashing. Which means it's charging our battery right now. So we can go ahead. Clean this up just a little bit. Put our nuts back on our battery, and be good to go. Well, I think that about a dozen 50 days installation of the NOCO AC Port Plug with extension cord. My name's Kevin. Thanks for watching..

Customer Reviews

NOCO AC Port Plug with Extension Cord - 16" Long - 329-GCP1

Average Customer Rating:  4.9 out of 5 stars   (39 Customer Reviews)

Low-profile port plug lets you create a pass-through outlet for easy access to an AC charging port on your truck, boat, RV, or trailer. Pressure-fit cap provides a waterproof seal.


Easy to install after cutting holes to the template you need to download/print the .pdf installation instructions from the webpage. I did not expect the screws which come with it to secure in the steel bumper. Purchased screws and lock nuts to secure. Now I do not have an ugly plug hanging down!

Already had somebody notice it today after wondering what it was when looking at my steel bumper at a local store.

Supposed to get down below 32 degrees tonight so I will use it for the first time to keep my diesel engine warm.

Used multiple times over the winter. Worked great. Still get jealous looks questions about it.
Michael S - 02/02/2020


Was looking for a two way plug to serve as a shore tie port so that it wouldn't be necessary to cut off the plug end of my new onboard battery charger and then hard wire. This product achieved that objective, albeit with a short pigtail, which also allows plugging something else to the shore tie port. Straightforward installation.


It is made well and is exactly what I was looking for. It is installed on my 2017 Nissan Titan XD Diesel 4x4 pickup truck now for the diesel engine block heater power supply. I just have to take an extension cord and plug into the truck in when needed.


Very good product. Easy installation. Works great. Use in my 5x8 enclosed trailer with a power strip inside which includes USB ports for phone and such. Mounted under trailer and up front. Didn’t want to drill into the side however it comes with very robust weather proof gaskets so won’t be a problem for someone who needs on the side.


I used my ac plug port for the onboard charger on my golf cart. It works great, and looks clean. The only reason this is not a five star rating is because etrailer had a bit of trouble getting this product to me.


I used this on my dump trailer so I could easily charge my battery without opening my lock box exposing the battery and hydraulic pump. Works great!! The adapter will receive a large plug end. See photos.


I think it will work great, looks like a wonderful thing.


Great prices and incredibly fast shippi ng.


very easy way to keep boat batteries ch arged


Definitely beats having your block heater cord hanging out of the bumper or grille. Part was initially on back order which I discovered after placing my order. The 5 star rating is more towards the company than the product. George J was very prompt on informing me of the situation and expected ship date. Its almost unheard of in the age of texhnology to actually receive a phone call to let me know. Keep up the good work guys! You have earned my business on customer service alone.


Very good deal on an AC port plug. I installed this on my enclosed trailer to run battery chargers while I'm not using it. The quality exceeded my expectations and installation was very easy.


Excellent product at a great price,easily installed.great way to have power inside my snowmobile trailer rather than running extension cord between ramps or side door


easy install, weathertight, holding up well after several months.
i use if for trickle charger on motorcycle in enclosed trailer.


Great external 110V port for my boat, internal female 3 prong plug connects to my boat battery charger!


I used for my trailer cargo. Very good quality


Great for bringing power to my teardrop trailer build.


I was very satisfied with the plug, great quality and excellent workmanship. Will order from you again.


Exactly what I was looking to install in my camper van to support electric for my CPAP.


Good quality not flimsy well made


It works the way it was intended and install was a breeze. The parts arrived ahead of time and were well packaged.


Great quality, should work fine.


This works great.


Next millennium product here, way cleaner look than the typical plastic boxes.


Quick service! Great product. All is good. Thanks a lot


Works Perfect!

Show More Reviews

See what our Experts say about this NOCO Accessories and Parts

Do you have a question about this Accessories and Part?

Used Items Available
Used Picture for NOCO AC Port Plug with Extension Cord - 16" Long

Condition: Like New

Notes: May have damaged packaging or minor cosmetic blemishes.

Our Price: $22.24
Secure Checkout

  • Why

    At we guarantee:
  • Highest quality accessories and parts for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate accessories and part information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Cole B
Installed by:
Cole B
Employee Jacob H
Installed by:
Jacob H
Employee Chris R
Video Edited:
Chris R
Employee Daron K
Edited by:
Daron K
Employee Brian T
Written by:
Brian T

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.

Product Experts Available Now!
Call 1-636-306-4830