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Bargman Custom Fit Vehicle Wiring Harness Installation - 2019 GMC Sierra 2500

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How to Install a Bargman Custom Fit Vehicle Wiring Harness on a 2019 GMC Sierra 2500

Ryan: How's it going Ryan here at Today on our 2019 GMC Sierra 2500 we're going to be taking a look at, and showing you how to install, the Bargman fifth wheel and gooseneck 90 degree trailer wiring harness with the seven pull plug.This wiring is going to mount here in the bed of your truck, and the purpose of that is, it's going to be way less of a hassle to hook up to your fifth wheel or gooseneck trailer wiring. And it's going to eliminate the need to drape your wiring over your tailgate, have to worry about it accidentally coming unplugged, or even scratching up your truck's finish.The cab is going to be spring loaded, and on the bottom side there's going to be a rubber seal. And with those two things put together, that's gonna help keep out any dirt and debris. It's also going to help resist any corrosion, not letting moisture inside.There's also going to be a tab here that hangs down and the purpose of that, so whenever you plug in your wiring it's going to catch it and help it from accidentally coming disconnected.So one of the things I really like about this kit is that it's going to be plug and play. So it's essentially just going to plug in to your seven way down at your bumper, but it's still going to allow you to use that seven way down at your bumper as well as the one inside of that.And with it being plug and play installation is going to be very straightforward.

Speaking of which, let's go ahead and do it together now.To begin our installation, we're first going to need to grab our harness and our plug and figure out where we want to mount it. And I'm going to go right here on the driver's side and this area, because it's nice and flat. We have a lot of room to work with behind it.Now if you want to choose a different location, just need to make sure it's flat. And it's not a bad idea to get underneath the truck and look behind there to make sure there's nothing of importance.So what I'm going to do is kind of hold this in position where I want it and then just use a marker and just making small dot. That way I have something to go off of while I drove my pilot hole.We'll do our small pilot hole first.

We can move up through our hole saw. You can use a file to clean up any sharp edges or burs that our hole saw left behind.Now I went ahead and cleaned up all of our metal shavings. What I like to do is use some spray paint to cover up that bare metal that's left behind. That way we don't have to worry about any rust or corrosion.We can take the end of our harness and feed each of our connectors through. This can be a little tight so you might have to do them one at a time to get them to both fit through there.

Once we get them through. If you can just feed all of her wire down to the bottom of the truck.Now we can put pressure against our plug to hold it flat against the bed and make sure we have it lined up straight and we can secure it using the included tack screws. Now would I like to do is this put a little bit of anti-seize on the threads. That way we don't have to worry about them corroding. Repeat that process for the three remaining holes.To give you guys an idea, this is where our wiring dropped down.

Now we can come to the seven way plug here on our bumper and get it unplugged. So to do that there's going to be small grayish white tab, kind of pull that back, and then there'll be a black tab in the center. Push that down and you're able to pop that plug off.I went ahead and routed my wiring up and over the frame rail. That way we can plug everything in. Now I do recommend using some dielectric grease on our plugs and that'll just help keep them in good shape and prevent any corrosion. We'll cover those terminals really good.Then we're able to plug everything in. So how this is going to work, this plug is going to connect to our factory plug here. Push the two together. Don't forget to reseat your white clip.Just push down on it. Then the other end of the plug, we'll just go back into the seven-way and bumper. Push it all the way on. Then I like to just kind of pull it back so I'm gonna make sure it's fully secure.Now I went ahead and secured all of our wiring using some zip ties and this is the way I did it. I bundled up all my extra wiring up in this pocket here. Zip tied it up nice and tight. Then I just followed along tying into a couple of the factory wires.Now with everything hooked up, you can go ahead and test it to make sure it works. I'm using a tester. If you don't have any use, you can always just hook up to your trailer. So go ahead and check our left turn. Our right turn. Our brake lights.Our running lights, and our trailer brakes. We're also going to make sure that our reverse lights work. that'll finish up our look at and our installation of the Bargman 90 degree trailer wiring harness on our 2019 GMC Sierra 2500.

Info for this part was:

Employee Joshua S
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Joshua S
Employee Jacob T
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Jacob T
Employee Dustin K
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Dustin K
Employee Chris R
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Chris R
Employee Cole B
Installed by:
Cole B
Employee Randy B
Test Fit:
Randy B
Employee Brent H
Test Fit:
Brent H
Employee Shane H
Test Fit:
Shane H
Employee Robert C
Test Fit:
Robert C
Employee David F
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David F
Employee Ryan G
Test Fit:
Ryan G
Employee Zach D
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Zach D
Employee Jonathan Y
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Jonathan Y
Employee Jacob H
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Jacob H

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