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Mount this 7-way, RV-style connector in your truck bed to simplify hookup of your 5th-wheel or gooseneck trailer. Harness plugs into existing wiring and retains use of factory 7-pole at the bumper.
Features:
Specs:
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hey guys, it's Jake here with etrailer. Today we have a 2023 Chevy Silverado 2500. We're gonna be taking a look at and I'm gonna show you how to install the Valterra Mighty Cord gooseneck and fifth wheel wiring kit. Installing the 7-pole in the bed of your truck is, to me, a very important accessory to have in your truck if you plan on towing a fifth wheel or gooseneck. I like having everything that I need to connect the gooseneck or fifth wheel in the bed of the truck. So having a 7-way in the bed of your truck is going to make it that much easier.
Otherwise, people will usually drape your 7-pole over top of your tailgate, which can cause a couple of problems. One being that that cord, every time you make a turn or drive down the highway, is vibrating against the back of your tailgate, which is not good for the cord. You can eventually wear through the insulation on the cord or potentially scratch up or mark up your tailgate. Another thing is if you're plugging into your bumper and you put your tailgate down to unlatch your gooseneck or fifth wheel, you decide to pull away and your trailer's still hooked up, the electric is still hooked up, you could pull up, rip the plug right out of your truck or out of your camper. So having it in the bed of your truck will allow you to connect everything on your fifth wheel or gooseneck that you need to, and then also connect the 7-pole.
You can come around after everything's latched up, plug in your 7-pole, put your tailgate up, and you're ready to roll. Now, when it comes to the insulation, it's going to be extremely easy in our '23 Silverado 2500 because it'll come with a prep kit, which is just a filler plug for an opening that they already have here. And with the help of this Curt adapter, it's gonna look as about as factory as you can get. That being said, let's go ahead and show you how to do it. To begin our installation, we'll take a trim panel tool or a screwdriver.
You're gonna have two tabs on the inside of this plug that we need to remove. Pop it out. Usually if you get one, you can pry on the other. It'll come out. There we go.
One of those rings just fell off. That's okay 'cause we won't be reinstalling this. You might wanna hold onto it if you ever decide to take your wiring back out. But this wiring is literally as easy as sticking these, the pigtail end or the T end of it down through your wheel well. Make sure it comes out which we see there. We'll tie up all our excess length down underneath. We're gonna be using the Curt adapter plate which is designed to cover up the majority of this opening. We'll slide the plug through there. Take our new plug. Snap it in place, make sure it's secured, and then slide our adapter plate over. Tie or plug your opening, and then snap the Curt adapter plate in place. We will secure this using the four self-tappers included in the Curt kit. The Valterra kit will come with some self-tapping screws if you're not using the Curt adapter, but I highly recommend using it 'cause of the clean finish. The Curt screws are gonna be a little bit longer. (drill whirs) With everything secured up here, we'll go underneath and make our connection. Now underneath our truck, we have our spare tire removed just for ease of visibility. We have this white tab here. We'll pop it back, press down on the tab. Sometimes you have to push in on this tab, push in on the plug, and then pull out. So we can take our pigtail here and I'm gonna route it in such a fashion that the wiring is not gonna get in the way of anything. We're up and over this. And typically, in this area right back here is where I like to spool up the excess 'cause there's more than enough space here. You can spool it up right here if you want, but it's just kind of a tight area. Take this. Plug these two connections together. Make sure it clicks, up that tab, and then take our new plug and plug it into the factory. Give it a tug, make sure it doesn't come off. And just like that, you've tied into the 7-pole on the back of your truck by your bumper which will give you full functioning of your 7-pole up in the bed of your truck. All there's left to do is get this wiring all zip tied up. All we have left to do is test out our wiring. We'll hook up our tester box here. That's good. We're already showing 12 volts to the plug. We'll go ahead and run through our functions. We have our left turn, right turn, running lights, and brake lights. With everything working properly, that's gonna do it for a look at and insulation of the Valterra Mighty Cord gooseneck and fifth wheel and bed wiring kit.
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
Ratings & Reviews
Easy to install, plenty of extra length even on my 8' bed, highly recomend.
Strange that you emailed me. We are actually in Isla morada with our fifth wheel and I was just telling my wife how nice it was to be able to plug the light cord in where it should be instead of draped under the tailgate
The torklift frame mount camper tied downs are awesome. The 5th wheel wiring harness was easy install. Glad to see you have products that make things possible. Thanks.
Great quality and the installation was very easy
Everything I needed to complete the job easily.
Installed on a 2019 Ram 2500 with 6"4" bed and fit perfectly. The 7 ft. length was plenty long enough.
Simple 20min install, high quality mate rials
I didn't need to use the product after all. However, I removed it from the box and it appears the quality is excellent. Very well made. I'll definitely keep it and use it in the future.
Worked Great, Easy Install.
Easy install, worth the money to get a better setup
Fast shipping, great communication!!! Will work with them in the future!!
Fast shipping quality product
Once the location of the hole was figured out it is plug and play very easy
it was everything i hoped, fit perfect.
Perfect fit
Easy to install and just like advertise d.
Fantastic design! No cutting or splicing. Plug and go!
Excellent kit. Easy plug and play. Came with tie wraps and sheet metal screws. Only thing it didn’t come with is the dielectric grease so I suppose if it were necessary they would have included it.
Installed on the right side wall of 2018 Nissan Titan XD. Truck has puck system for gooseneck but Nissan didn’t install this in wall until the 2019 trucks which is rather dumb since 2016 with this model and ending with the diesel 2019.
It was a very easy install. So much better then a bumper plug any day
The plug that goes in bed was to long it measured 31/2" an I only had 31/4" I had to buy 5/16 rubber an make a spacer other the that everything plunged in great to my factory wiring
Rose was outstanding help. Great service and shipping. 5 stars
The kit delivered in two days which is excellent. I’ve just inventoried the kit and all components and hardware seem to be accounted for. Read through the installation instructions. Now the work begins. I’ll be installing in the next couple days so check back with me.
First time I towed my 5th wheel the harness did not work inside the bed and at the factory bumper plug .Drove without trailer brakes until I got home .Once home I tested the new harness and got mixed readings.Took the harness connectors apart and noticed 2 prongs on the new harness ( male plug)were loose and were not making a good connection to the factory harness for power to the trailer brakes.
The install went smoothly, was easy to follow the instructions that were provided. Only thing that could be added, would be some dielectric grease for the connections.
Good product, worked perfectly for my 23 Ram 2500 short bed. I ran it up into the driver side taillight housing and it was a snug fit but I think it’s a perfect spot.
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Kate F.
3/18/2026
Looks great Jacob! What kind of trailer are you going to be hauling around?