Curt 5th Wheel Wiring Harness Installation - 2015 Chevrolet Silverado 2500

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How to Install the Curt 5th Wheel Wiring Harness on a 2015 Chevrolet Silverado 2500


Today on our 2015 Chevrolet Silverado 2500 we're gonna be taking a look at it and showing you how to install the curt fifth wheel or goose neck custom wiring harness with seven-pull connector.This is what it's going to look like installed. Now what's great about this seven-way is when we're using it for our goose neck or fifth wheel, we're not going to have to drape a wire over the edge of our tailgate. We can just simply plug it in right here. This is going to give us all the necessary functions to remain legal and then some. Such as our backup lights, break lights, clearance lights, turn signals and trailer breaks.The cap is spring loaded. That way when we're not using it, it'll stay closed and dry.

Especially because under the cap, there's a nice rubber seal that can help keep out moisture and debris. There's also a retainer right here so that way when our plug is clipped in, this'll prevent it from accidentally pulling out.Another great thing is that this is a plug and play harness. So it makes it really, really easy to install. Let's show you how to do that now.Alright so to begin our install, we'll first need to decide where we want our seven-way plug. Now depending on your application you may want it lower or higher, but for our case we're gonna go with right about here.

So once you have your spot picked out, what you can do is drill a quarter-inch pilot hole and I would like to point out too before drilling, it's always a good idea to check behind it to make sure you're not drilling in to nothing of importance.So you have your pilot hole drilled, then you take our hole saw and drill a hole out.We're gonna take a hand file and file down all these burrs. That way it's nice and smooth. Take some clear spray paint and just spray it over our bare metal to help protect it from the elements.Now we can take our new wiring harness and the end with two clips, we'll go ahead and put it in the whole and feed it down to the bottom of the truck.Since we're still up here in the bed of the truck, might be a good idea to attach our plug to the harness. First I like to use some dielectric grease, just to help prevent any corrosion. If you need some, you can pick some up on etrailer.com.

That simply just plugs in until you hear it click.Alright now what we can do is secure our plug to the bed of the truck and kind of push everything through. We're going to use the supply self-tightening textures to do that. Just make sure your plug is nice and straight.now here's where the wiring came out from inside of the bed. We went ahead and routed it down and over the support bar here. Then it came down and along through here.

As you can see the end of it came out right here and that was just to take up some of the slack and the harness. What we're gonna do now is get it all plugged in and then we'll zip tie it up nice and neat and to do that, here at the back of the factory seven-way we're gonna go ahead and remove this gray cover. Just use your fingers. Push down and out. Then you'll pull it down and remove it like that and you'll see a clip here and you'll push that tap down and pull it outward, just like this.Went ahead and applied some dielectric grease to this connector off of our new harness and what we're going to do is actually plug this in to the factory seven-way plug and all you do is simply push it in to place and you'll hear it click and then I'll be fully seeded. Now what we'll do is take the plug that we removed from the factory one. Put some grease on it and plug it in to the connector off of our new wiring harness. We do that the same way, just line the two up together, push them in until you hear it click and we'll actually take our gray tab and feed that through the wires.These can be kind of tricky sometimes so. Then we can push that and clip that back in to place and I went ahead and used a couple of zip ties just to secure all the wires together to keep it nice and clean.Alright, I went ahead and plugged a tester in to our new seven-way. That way we can test it out. Let's go ahead and check our clearance lights. Alright, let's try our left turn, our right turn and finally our break lights and we'll also put it in reverse and check that.Alright, looks like we're all good. Now we can go ahead and see if our break control is working and that'll do it for our look at and installation of the curt fifth wheel or goose neck custom wiring harness with seven-pull connector on our 2015 Chevrolet Silverado 2500.


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Info for this part was:

Video by:
Andrew K
Installed by:
Jeff D
Video Edited:
Joshua S
Video Edited:
Jacob T
Video Edited:
Kathleen M
Video by:
Dustin K
Test Fit:
Randy B
Video Edited:
Chris R
Video by:
Zach D
Test Fit:
Andrew S
Test Fit:
Shane H

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