To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
Tired of wrestling with your trailer connections? The Curt 5th Wheel/Gooseneck Custom Wiring Harness offers a 4-way and 7-way, blade-style connector directly in your truck bed, simplifying the hookup process for 5th-wheel and gooseneck trailers. With its easy plug-and-play design that requires no cutting or splicing into your factory wiring, setting up your heavy-duty towing is a breeze.
Save yourself the hassle of complicated installations with this custom-fit wiring harness. Specifically tailored for your vehicle, it easily mounts within the driver’s side of your truck bed — wheel well, tailgate post or sidewall. It comes with all necessary zip-ties and self-tapping screws, making installation smooth and straightforward.
Manoeuvrability is key when you’re connecting your trailer, and with a generous 7-foot long insulated wiring harness, you won’t be held back. It reaches comfortably from your rear bumper up to your truck bed, maintaining the factory 7-pole trailer connector at the back of your truck, adding convenience and flexibility in your towing setup.
Count on robust performance; this harness tackles the most demanding towing conditions head-on. The insulation and craftsmanship ensure dependability and long-lasting use, so whether you're towing in the heat, cold, or heavy rain, it's designed to withstand the elements and keep your trailer on track.
Say goodbye to unnecessary detangling: this harness allows you to easily retain your vehicle’s factory 7-pole trailer connector at the rear while adding connectivity in the bed. This dual connection solution provides practicality and convenience for drivers who demand versatility from their towing systems.
No matter your truck model, this harness keeps you future-proofed. With custom fittings perfect for most 2023 and 2024 truck models, like the Chevy Silverado 3500 or GMC Sierra 2500, you can look forward to a seamless integration for years of dependable use on the road.
California residents: click here
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi there, I'm Michael with etrailer.com. Today we're gonna take a quick look at this CURT 5th Wheel and Gooseneck custom wiring harness. This is gonna provide a 4-way and a 7-way blade style connector in your truck bed so that you can very easily hook up your 5th wheel and gooseneck trailer and not have to worry about the hassle of trying to reach down to the connection point that's down by your bumper. And this is going to mount in your truck bed sidewall tailgate post or wheel well and it is going to be a custom fit for your 2019 and newer GMC Sierra and Chevrolet Silverado 1500, 2500, and 3500 with a factory 7-way. So this will plug right into your factory wiring. You're not gonna have to do any cutting or splicing into the wiring.
Basically, you'll just take your connector off. It's going to expose this kind of connection here that's currently on your vehicle. You'll then plug that portion into this and then reconnect your plug here. So that's going to re-complete that circuit. So your bumper mounted 7-way is still going to be working just fine, just like it originally did.
And then that's also going to then send your signal up to your truck bed. This is seven feet long and it is going to reach up to the truck bed so that you can more easily connect your 5th wheel and gooseneck. Make sure that you've got all the wiring that you need there. They do include instructions for you to get this installed. They walk you through that installation process even though it's very simple and they give you all the pictures that you need as well as some zip ties and to hold your wiring even place where you need it.
So very easy way to kind of extend your wiring harness or your wiring connector up into your truck bed so that you'll have much easier time hooking up when it's time to tow. So that completes our look for today. Again, I'm Michael with etrailer.com. Thanks for watching.
Super easy to install. The hardest part was pulling the old plug from the harness to the bumper connector. Although the instructions said to feed the bed connector from the bottom it was easier to feed the bed connectors (even though there were two) into the upper bed slot and then under the bed.
Simple installation, worked as expected. With spray-in bed liner, the clips did not latch but no fault of the product.
Pull and play install, very easy and fits perfectly
Product assembly fit and installed as it should, and has worked well all year , highly recommend
Solid harness but it’s sold as a direct fit for my truck and the way the harness is routed does not allow it to work on my truck. The connection to the outlet routes directly into the steel frame support of the box of my truck.
Stacey A. was very helpful and guided us towards the replacement product that we needed. Excellent customer service on her part.
Have not had time to install it yet but looks correct and as described. Product was delivered 1 day ahead of Est delivery date.
Easy to install, clean look after installed and quality product.
This fit as advertised and works great.
Dropped right in spent more time unboxing and removing the taillight than the install itself.
Great
Info for this part was:
At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.
Cary
4/23/2025
After traveling over 3,000 miles at more than a dozen sites over four states the plugharness has been rock solid. I would have no hesitation recommending this product to anyone needing an in-bed connections