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Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness Installation - 2022 Chevrolet Silvera

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How to Install the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness on a 2022 Chevrol


Hey everybody, how's it going Today we're going to be going over and showing you how to install the Hopkins Endurance In-bed 5th/Wheel and Gooseneck trailer wiring harness here on our 2022 Chevrolet Silverado 3500. So an in-bed wiring harness is going to be geared towards you guys that are doing some 5th/Wheel and Gooseneck heavy duty towing. Sometimes the trailer connector for those trailers can still reach the seven-way on the bumper but that could actually run into issues if you make any tight turns and overall, it's just much better to use one mounted in the bed that we have here. It's definitely going to be a must for all you Gooseneck and 5th/Wheel guys. So this is actually a pretty unique kit, and the reason for that is this plug here is specifically designed for a factory cutout in our truck bed. Now, a lot of the other gooseneck or in-bed wiring harnesses just have that standard square connector that you drill a hole for whereas this one here, it doesn't require any drilling whatsoever because it's designed for that factory-size cut out.

So just as a comparison, this is actually the factory dummy plug that we removed from that cutout there. As you can see here, this trailer connector is an exact match. The dummy plug, obviously it doesn't have the wiring and the circuits for the lights though. So we actually have two trailer connectors here for this particular one. The bottom one is going to be the standard seven-way that you're more than likely going to be using.

This is what trailers, larger trailers with electric brakes use. So we're going to have all of our lighting circuits as well as the battery charge line in the electric brake circuits. Now, on the top here, we also have a standard four-way or four-pole flat, and this is just for smaller trailers with lights. Now, you have one of those at the bumper as well, but if you had some sort of light bar or some sort of accessory that is powered off the four-way, you could use the in-bed version of this as well to power those accessories. Now, with that being said, keep in mind, you can't use both the seven and the four way at once due to the design of the split, that can also create some power draw demand issues with your truck there.

So that is unfortunately not going to be permissible, but you can still use either the seven or the four-way for whatever you need it for. So there is actually a gasket underneath each of these lids, but also spring loaded. And what this is going to do is, it's really going to do a great job of ensuring any moisture doesn't get in there. We definitely don't want water on those contacts in there, they can corrode and lead to trailer lighting issues. That's not something that you guys want to have to deal with.

Therefore, having that spring loaded lid and that foam gasket on there is going to do a great job of keeping out the water that way you don't have to worry about any lighting issues. So keep in mind, this wiring harness here, splices in line with the factory trailer wiring circuits, therefore everything is going to be circuit protected. You don't have to worry about any issues with the trailer affecting the lights on your vehicle. So in regards to installation, this one is very easy, this is definitely something you guys can do at home. You certainly wouldn't want to pay a shot to do this. It is completely plug and play, there's no splicing whatsoever. We can actually walk you through this entire process, step-by-step. Now, give yourselves about 30 minutes or so to get the job done. So the first step of our installation, we're going to come the truck bed over here on the driver's side. Now, here's the plug we're going to be using. And then we can see here, it's actually going to look exactly like this plug here. And the reason for this, this is a dummy plug that this connector here is going to replace. So we need to remove that. Now, sometimes you can pinch it from the outside to release the clips, but a lot of times you actually have to reach up underneath the truck there, just get your arm in this little channel. And there's going to be two tabs on the back, just like this one that we're gonna press and then it should pop right out. So I'm gonna go ahead and crawl under the truck now, try to squeeze those two tabs and then our dummy plug should come out. So here's that dummy plug, and there's the two tabs just as we showed you on the connector, the exact same, just to press those and it should pop out. Now, we're going to take our wiring harness here. So this end here plugs into the back of the connector. So what we're going to do is we're going to take these two ends and we're going to feed them through that hole down underneath the vehicle. So just feed all the rest of that wire down there, just like that. And then we're going to take this plug here, simply attach it to the back of our connector. It only goes in one way, should be pretty easy. And you should hear it click when it's locked into place. Now, we're just going to simply secure the connector into the cutout in the bed. You may need to rotate it a little bit, sometimes the ends of those plugs get caught up. But there we go. Here's our wiring harness that we snaked down through that channel earlier, should be pretty obvious, there's tons of extra wire here. But these two ends here are going to plug in to the back of our factory seven-way trailer connector. So if we look between the spare tire and the trailer hitch, up behind the bumper here, sort of where the license plate is, it's kind of hard to locate, but here is actually the factory seven-way connector. So what we're going to do is we're just going to remove that. There should be a tab you're going to depress at the top there. So some of them even have a lock on there as well, I think this one has it as well. I'm going to grab a flat blade screwdriver so I can pry back that lock and then I can depress that tab. And there we go. Now, we're just going to simply take our wiring harness here. There's two ends. One end is going to go to the wiring harness there and the other end is going to go into the back of the plug. They should only go in one way, so it should be fairly obvious. And again, you'll hear them click when they lock into place. Make sure we go ahead and reinsert that locking tab. But that's pretty much it. What we're going to do now is we're going to take some zip ties and we're going to secure this extra wiring, preferably to the existing wiring that's already on the vehicle here, just clean everything up a little bit. So now we can go ahead and test out our lights, make sure everything's working properly. We're going to be using a plug-in tester box, you guys can use your trailer as well. I would caution against using the little plugin LED testers, those don't seem to work too well with the factory Gooseneck wiring. But with that being said, we'll go ahead and run through our signals here. We have the brakes, our left turn, our right turn, our running lights. And then we actually have a factory brake control on this truck as well, so we can show you that. So now that we've verify all of our functions, that's going to do it today for our look and installation of the Hopkins Endurance In-bed 5th/Wheel and Gooseneck trailer wiring harness here on our 2022 Chevrolet Silverado 3500..


Info for this part was:

Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Dustin K
Video by:
Dustin K
Employee Jonathan Y
Video by:
Jonathan Y
Employee Conner L
Test Fit:
Conner L
Employee David F
Test Fit:
David F
Employee Bradley B
Test Fit:
Bradley B

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