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When setting up for a 5th wheel or gooseneck trailer, having a plug in the truck bed makes life easier. The Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness with 7-Pole Plug lets you add an in-bed connection without cutting into factory wires. Its plug-in design connects directly to existing factory ports, so you get a clean install that still keeps the bumper 7-way active.
Wiring projects can get messy fast, but this harness skips the hard part. It uses OEM-style connectors that plug right into the vehicle’s wiring, so there’s no splicing or chasing down circuits. Everything clicks together for a straightforward setup that looks like it came that way from the factory.
The harness is long enough to reach exactly where you need it in the bed, but not so long that you’re stuck coiling extra wire. That means less clutter and a cleaner finish once installed. The 90-degree 7-way plug mounts neatly to the bed wall and stays easy to reach for quick trailer hookups.
With its standard 7-blade layout, this harness handles brake output, reverse lights, 12V power, and all the usual running and signal functions. You can tow your 5th wheel or gooseneck trailer with full power and control, while still using your bumper connection when needed.
If the in-bed socket ever gets damaged, you don’t have to replace the entire harness. The female connector that bolts to the bed can be swapped out on its own, keeping repairs simple and cost-effective. It’s a solid setup that’s built to last through years of towing.
Ratings & Reviews
Arrived in good condition and early.
Simple install took longer to drill hole than install product. Looks great to.
Was easy to install & has been working great.
Simple install took longer to drill hole than install product. Looks great to.
Working great. No issues. Would buy all over again.
Great fit. Versital mounting options. If you install it in the side of your truck bed, check for body panel supports. I had to drill down through a lateral support to fish the harness through.
Worked just fine. Very pleased.
Plug and play.
great product , simple plug and play so far I love the simplicity of this set
Product has worked great, no issues, just plug and play.
Very easy to install and works great. No problems with the instructions, just plug and play. Quick shipment.
A great purchase. Had a bit of paint chipping but that should be expected when one orders heavy items. Ultimately the hitch fit perfectly as advertised. The installation instructions where easy to understand and led me through the installation step by step
What a good buying experience on my B&W gooseneck hitch and towing accessories for my Toyota Tundra. First of all, the pricing was good on all my items. Second, free shipping. Third great customer service and recommendations during the purchase process and then followup at shipping.
Next day I realized that I had forgotten to get a suspension enhancement item I also wanted so called back. No problem, they would add it to my original shipment for just $x.xx extra.
All the items arrived very well packaged. Based on etrailer.com's great videos on 'how to install on YOUR particular vehicle' series, I was able to install all the components myself. I would not have attempted the hitch without that video so I saved a bunch there due to their video's. THANKS etrailer.com!!!
They are doing there job after a year and around 29,000 miles. I have pulled my 5th wheel couple times but pull my 42' Flaubert hauling farm and ranch supplies to the stores. In all this time not once have I had any problems and I did dismantled my 5th wheel for maintenance and there was no signs of any wear.
Absolute piece of cake installation (2008 Tundra) ! Nice price and decent quality. Installation instructions specified a 2 1/8 inch hole saw, but I used a 2 inch hole saw, because I already had that item. Just to note, a 2 inch hole is large enough for installation of plug, but not large enough to pull the plug connector harness through. This will only be a problem if the plug is mounted at a location with limited access from the back side. In my case, I could easily reach the rear of the plug to make the connection with the plug harness (we'll see how easy it is to unplug if problems arise, though).
Mike
9/20/2019
Still wonderful! After a year of use, the Hopkins Custom Fit Vehicle Wiring harnes- HM43397 has proven to be a really good investment. Having the trailer electrical connector in the truck bed, rather than under the rear bumper, is a superior idea - connection point is easier to make, and most importantly, the connection point remains free of road dust, mud, salt, etc.! Also, the re-located connection point is safer and easier on the trailer wire & plug. Well worth the price!
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James
10/10/2022
From drilling a hole in the side of my bed and plugging in the wires it was like 30-45 minutes. And no problem of any kind. Got close to 50,000 miles on them.