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7-Way Molded Connector w/ 18' Cable - Trailer End

7-Way Molded Connector w/ 18' Cable - Trailer End

Item # 50-67-106
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50-67-106 - 7 Round - Blade Bargman Trailer Connectors
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Prewired 7-way trailer end sealed connector with 18' of 7-way cable. Lowest Prices for the best trailer wiring from Bargman. 7-Way Molded Connector w/ 18' Cable - Trailer End part number 50-67-106 can be ordered online at or call 1-636-306-4830 for expert service.
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  • Videos (2)
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Bargman Trailer Wiring - 50-67-106

  • Trailer Connectors
  • Trailer End Connector
  • 7 Round - Blade
  • Plug and Lead
  • 11 - 20 Feet Long
  • Bargman

Prewired 7-way trailer end sealed connector with 18' of 7-way cable.


  • 7-Blade molded connector with cable
  • Trailer end
  • Wire functions:
    • White: ground
    • Blue: electric brakes
    • Green: taillights and license plate light
    • Black: battery charge
    • Red: left turn light and brake light
    • Brown: right turn light and brake light
    • Yellow: center auxiliary


  • Cable length: 18'
  • Wire gauges:
    • Black/white: 10
    • Blue: 12
    • Yellow/green/red/brown: 14
  • 1-Year limited warranty

50-67-106 7-Way Molded Connector w/ 18' Cable - Trailer End

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Video of 7-Way Molded Connector w/ 18' Cable - Trailer End

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

Video Transcript for Bargman 7-Way Molded Connector Review

Speaker 1: Today we'll be having a look at and showing you how to install the Bargman seven way molded trailer connector with a 15 foot cable. Also available in a 10, 18, and 22 feet length. Here's what our cable looks like installed. Now the main reason your going to need a new cable like this one is because if you didn't adequately have the slack tied up when your towing your trailer, it can drag on the ground, causing abrasion, causing a short and it won't work properly anymore.Hooking up to our tow vehicle is as simple as lifting our door, making sure the notch on our cable faces up to push it in. And then the latch on the door will grab the tab and hold it in place. So you don't have to worry about it getting pulled out.

Well, one thing that's nice about this connector, compared to others on the market, is that when we need to unplug from our truck, we have these nice finger tabs here to get an easy grip on it, as we pull out.Now one thing that sets this cable apart from others in the market, is where the end of our cable meets our seven way connector, right here. It's molded together. And this will prevent moisture from getting inside, offering a superior weather resistance, and we don't have to worry about corrosion happening where the wires are connected to our terminals inside the connector. This will cause better electrical performance over the course of time. This thick insulation will provide protection from the elements, and also will help protect it from abrasion if it we're to rub against something.Now that we've gone over some features, we'll show you how to get it installed.

We need to locate the junction box where our wiring connections are made. In our particular case, this is our junction box in our trailer. You'll typically find this near the front. Remove the lid. We'll now remove the nuts on all of our terminals, that hold our wires in place.

Now in our particular case, our factory seven way wire comes into the top here, and all the connections are these top connectors right here. So, we'll one at a time remove the terminals that cover up those wires, then remove those wires themselves and place back on the ones on the bottom that cover them up. This way, we can easily make our connection without becoming confused.Okay, now that we have all seven of our wires disconnected from the terminals on our junction box, we can pull those away, remove our grommet from those wires, you'll keep the grommet, then we'll remove the cable from the trailer. We've gone ahead and routed our new cable through the cable retainer on our frame, and we'll install the ends into our grommet. Okay, we installed our grommet back into our junction box, like the way it was originally.

Now we'll cut off the excess of our wires. Strip out the installation. And we'll crimp on new rain terminals which we have available on our website to each one of the wires. And we'll place them on to the corresponding stud where they belong.This blue wire here, that's for our electric trailer break output. So I'll put that one to the terminal that's label for our electric brakes. Next one's our green wire, and that one is for our tail lights. We'll do our brown wire next. That one's for our right turn signal. Your yellow wire next. That's for a reverse white output, or reverse yellow one for hydraulic trailer brakes, if your trailer had hydraulic brakes. Now we'll do a red wire. That one's for our left turn signal. Now we'll do our black wire. That's for our constant 12 volt power. That leaves us with the white wire. That's our ground wire. Now we'll reinstall all of our nuts.So, with all of our connections now made, we'll reinstall our cover. Now we'll test our our wiring by taking our plug and going into a tester. You can also plug it into the back of your truck. And we'll test out all of our functions. Now we'll start by turning our tail lights on. Okay, those are working good. Now we'll try our brake lights. Brake lights are working good. Do a right turn signal now. That's working good. Try out a left turn signal. That's working great.And that completes our look at and installation of the Bargman seven way molded trailer connector with a 15 foot cable, part number 50-67-103.

Customer Reviews

7-Way Molded Connector w/ 18' Cable - Trailer End - 50-67-106

Average Customer Rating:  4.9 out of 5 stars   (14 Customer Reviews)

Prewired 7-way trailer end sealed connector with 18' of 7-way cable.


worked perfectly, etrailer sales is top shelf.


It's a cable! With a plug!

got this cable to wire our small teardrop for underway charging and reverse lights. It's well-molded, long enough to run the length of the trailer, and does its job just fine. We did not lube the contacts, but so far no visible corrosion.

Would use again.


Excellent quality. This cable pig-tail does not get any water internally and my wire connections remain protected. The length of this cable enabled me to run it back to the bulkhead to terminate in a newly installed junction box for trailer lights and brakes.


Very happy with the product and the delivery! Great Sevice!


All the items ordered arrived as promised and were all that i had expected. Thanks.


This product was very high quality. It was exactly what I needed to complete my project.

Thank you retailer


Very satisfied





Good quality


perfect and fast shipping




See what our Experts say about this Bargman Trailer Wiring

  • Recommended Method For Installing Longer 7-way Trailer Connector Harness On Trailer W/ 9' Deck
    The best way would be replacing the current 7-way connector at the junction box and installing a longer harness. The junction box should be located not too far behind the coupler of your 2018 Rockwood A-Frame camper and will be on the inside of the A-frame. I recommend going with the 7-Way Molded Connector w/ 18' Cable - Trailer End # 50-67-106 which will be plenty long to clear the 9' deck on your trailer and it can be cut down to the exact length you want/need. Just make sure to not...
    view full answer...
  • What Wiring Diagram do You Have for the Hopkins 7-Way # HM40975 on My Ford F-350?
    I can definitely help you out with that. On my end, I could not find a Hopkins 7-pin SAE J1128. With that being said, the most common 7-way on your F-350's end will look like the pins on the 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End # HM40975. I went ahead and attached a diagram that shows the pin location and functions of each pin. If you need a 7-way on your trailer's side, I recommend the 7-Way Molded Connector w/ 18' Cable - Trailer End # 50-67-106....
    view full answer...
    Image 1 for Image 2 for
  • Replacement 7-Way Trailer Harness and Brake Controller Installation Kit for 1979 Chevrolet Blazer
    You can use 7-way trailer-side plug # 50-67-106 to re-wire your tandem boat trailer but you may prefer the protection and convenience of using a junction box like Etrailer 7-Way # e99011, which even includes ring terminal connectors and wire loom for making secure long-lasting splices to your existing trailer wiring. I suggest this kit as it includes all of these additional parts and actually costs LESS than part # 50-67-106. For a trailer brake controller it is easy to suggest the super-reliable...
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  • Compatibility of Parts to Install Brake Controller in 1979 Chevy Blazer
    I can certainly help you out ensuring you have all the correct parts to install a brake controller. Since you decided on the Curt TriFlex # C51140, and don't have a harness port in your '79 Blazer, you are correct that you'd need adapter # C51515. It will also be necessary to add the wiring, which comes with the # ETBC7, and along with that you'll need a 4-way, and # 118311 is a confirmed fit for your Blazer and will work with the ETBC7. Finally, the 7-Way Connector # 50-67-106 is going...
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  • Parts Needed for 7 Way Connector to Put on 17 Foot Long Food Truck
    It sounds like you're looking for a 7 way trailer side connector. The Hopkins # HM20048 you were looking at is going to be 11 feet long, so it's not quite what you're looking for. The longest 7 way trailer side connector we have available is the 18 foot long Bargman # 50-67-106, which will connect to the 7 way connector on your 2007 Toyota Tundra. If you need to, you can make up any distance you need to on your food trailer with either 10 gauge wiring # 10-1-1 or 12 gauge wiring # 12-1-1;...
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  • Building a Trailer with the Timbren Axle-Less Suspension System
    To build this trailer with the Timbren Axle-Less Trailer Suspension System - 4" Lift Spindle - Regular Tires - 3,500 lbs, part # ASR3500S06, there are a few changes that need to be made to ensure everything is compatible. The hub and drum assembly that this suspension system is compatible with is the Dexter Assembly for 3500 lb E-Z Lube Axles, part # 84656UC3-EZ. This assembly has a 10" diameter and a 6 on 5-1/2" bolt pattern. It's compatible with 13" - 16" wheels, and the bearing, races,...
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Info for this part was:

Employee Joshua S
Video by:
Joshua S
Employee Adam R
Expert Research:
Adam R
Employee Laura H
Written by:
Laura H
Employee Cole B
Installed by:
Cole B
Employee Brent H
Installed by:
Brent H
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Brian T
Updated by:
Brian T

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