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  1. Custom Fit Vehicle Wiring
  2. Hopkins
  3. Custom Fit
  4. Fifth Wheel and Gooseneck Wiring
  5. 7 Round - Blade
  6. 10 Feet Long
Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness with 7-Pole Plug

Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness with 7-Pole Plug

Item # 41157
Our Price: $67.89
You Save: 38%
Custom Fit Vehicle Wiring

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Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness with 7-Pole Plug Custom Fit 41157
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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. 90-Degree-angled connector fits into tight spaces. 1-800-940-8924 to order Hopkins custom fit vehicle wiring part number 41157 or order online at Free expert support on all Hopkins products. Great prices and Fastest Shipping for Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness with 7-Pole Plug. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (657)
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Hopkins Custom Fit Vehicle Wiring - 41157

  • Custom Fit
  • Fifth Wheel and Gooseneck Wiring
  • 7 Round - Blade
  • Hopkins
  • 10 Feet Long

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. 90-Degree-angled connector fits into tight spaces.


  • Provides 7-way, blade-style connector in your truck bed for hassle-free hookup of 5th-wheel and gooseneck trailers
    • Connector head is designed with 90-degree angle so it fits into tight spaces in truck-bed side rails
    • Lid with oversize hinge opens 180 degrees for easy connection
  • Retains the use of the 7-pole connector at the rear of your truck
  • Installs quickly and easily - no cutting or splicing required
    • Plug T-connector into factory wiring and your vehicle's factory-installed 7-way connector
    • Run 10' long wiring harness from rear bumper to truck bed
  • Offers enhanced weatherproofing with internal seals, corrosion-resistant terminals and rubber-coated copper wiring
  • Constructed of extremely durable ABS plastic
  • Includes self-tapping screws, dielectric grease packet and nylon ties for installation
  • Requires 2-1/8" hole in truck bed


  • Harness length: 10'
  • Wire gauges:
    • Purple/green/yellow/brown: 16
    • Blue/red/white: 12
  • Distance between mounting holes center to center:
    • 2-1/4" Horizontally
    • 1-1/2" Vertically
  • 3-Year limited warranty

Dimensions of mounting holes

This T-connector wiring harness uses your factory tow package to add a 7-way socket in your truck bed while also retaining the use of the 7-way at your vehicle's bumper. The harness plugs into the back of your 7-way at the bumper and also into your factory wiring. And it provides 10 feet of cord to run the second 7-way connector to your truck bed. Installing a second 7-way connector in your truck bed makes it easy to connect the 7-way plug from your fifth-wheel or gooseneck trailer.

41157 Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness with 7-Way Blade Plug

Installation Details 41157 Installation instructions

This Product Fits The Following Vehicles

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness with 7-Pole Plug - 41157

Average Customer Rating:  4.8 out of 5 stars   (656 Customer Reviews)

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. 90-Degree-angled connector fits into tight spaces.


Just purchased a new to me 2020 Ram 3500. Surprisingly, this truck had no towing components other than just a receiver hitch. I ordered the B&W Turnoverball Underbed Gooseneck Trailer hitch and Hopkins wiring harness. Super easy to install yourself. I want to give Amy at etrailer a huge shout out for her excellent communication starting with the ordering process to final delivery. etrailer will definitely be be my go to source.

2019 Chevrolet Silverado

The wiring harness was an easy install on my 2019 Chevy Silverado 2500HD LTZ Duramax diesel. Shipping was quick to the Pacific Northwest. The cord length is perfect for a custom placement. Looks like a factory installation with 100% positive tests when hooked up to the fifth wheel trailer.

2014 Dodge Ram Pickup

I have a 14 Ram 6.7 without the convenient in bed plug-in for connecting my 5th feel connection. Always had to drape it over the tailgate.

A medium sized hole saw, some zip ties, and this harness did the trick

2019 Ford F-350 Super Duty

fit my 2019 F350 perfectly. install was simple with clear instructions.



Had this on my truck for a year now, still working perfectly. This is clearly a quality product.


The install was very straightforward and the quality seems top notch. I'd recommend these products to anyone. I'll be purchasing a sidewinder pin box to complete this once our new fifth wheel arrives.


Josh did a great job! I had a few questions and he was very knowledgeable. I had something that was on backorder and kept me in the loop. He has also sold me a set of Firestone air bags. I installed it alm this weekend and everything we talked about was correct. The bags reduced my sag and I am more than happy to tell all my friends about Josh and how he’s been my go to guy! Thanks!!!


Installed this when I bought a truck camper. It was plug and play at the factory Ford end. I needed a 7-way at the front, driver's side of the bed for camper hookup. A little drilling and some hardware install and it works great at the front of the bed. I cracked the cover, no fault of Hopkins brand.

Capt R.


After a year, this product has been great. Worked as described and was plug and play at the rear factory Ford end.

2016 Chevrolet Silverado 3500

Worked as expected. Would like it better if the harness was offered in shorter lengths. The self-tapping screws are very light weight and strip out very easily. The zip ties are too light weight to be of any use, especially if you have 5 feet of extra wire to tie up.

Etrailer Expert

Jenny N.


Most of the 5th wheel wiring for the 2016 Chevy Silverado 3500 we offer is about 10 feet long like this one however there is part # 20110 from Draw Tite that is 7 foot long. While shorter it does not have the 90 degree connector like the Hopkins one has

2002 Ford F-350 Super Duty

Just like all the products I’ve purchased from etrailer over the years, it is a well made product.

2004 Chevrolet Silverado 2500

Great product. Installation time was ten to fifteen minutes even with cutting the hole in the box. This is an excellent kit overall. The zip ties that came with it were a little small, so I used my own. It would be nice if the kit came with the ground screw. I would recommend this product to anyone. I installed it on my 2004 Chevy 2500 HD.



The product is still working great a year later

2024 GMC Sierra 3500

Used it to add a plug for our 2014 Lance Camper not really designed to work with a 2024 GMC pickup. This fixed the issues. Camper works as designed.

2003 Chevrolet Silverado

Very satisfied with the quality of the product, installation was straight forward, more than enough wire if you install at the rear of the truck bed.


2013 Ford F250.
Easy install.
on side of bed.
Won't have to worry about tight turns and pulling on the plug or pulling it out. It was previously mounted on the under the bumper.
Everything went together smoothly.
All parts and accessories were in the box, didn't need anything extra.
Had the entire install done in about 20 minutes.

Thanks for a super product.



I have been using the connection for a year now and it has held about to a vigorous use. I remain satisfied with the product.


Shorted every thing out now have no power to oem plug not happy!!!

2014 Dodge Ram Pickup

It's actually long enough! 2014 Ram 2500 crew cab long bed w/factory hitch, and I installed this plug in the *front* corner of the bed.

Have a truck camper, and its trailer plug is in the front left (driver's) corner. The cord is only about 2' long, so I needed to install a plug in the front of the truck bed. Before ordering, I measured from the factory plug at the trailer hitch over to the rear corner of the bed, then made a 90 degree turn and measured up the frame to the front of the bed. From there, took another 90 degree turn and went vertically to where the plug would hopefully be in the bed. About 12'. Since 10' is the longest I could find, I thought that perhaps I could run the cable more directly and shave off a few feet, and it ended up working. Far easier than custom building a wiring harness.

The final installation route went across the top of the spare tire to the back of the fuel tank, then along the frame until reaching the front of the bed. From there, it traveled up to where the new plug is installed in the bed. There were plenty of points along the way to secure the cable with zipties so it's neat and tidy and not apt to get caught on anything like the rear suspension or spare tire. The cable ended up having a bit of extra length, not much, but a little ... I was glad it wasn't pulled taut!

The install was simple and pretty painless. As others have noted, the zipties that come in the package are a bit too small to really be useful.

2015 Chevrolet Silverado

Great product. Fifth wheel hitch 16411 with slider 16521 on 2015 Silverado 2500. Everything lined up good.





Fantastic customer service. No wait on the phone. Friendly, very helpful in determining what components needed and ordering. With quick conformation of order, tracking and delivery. Fabulous company.

2019 Chevrolet Silverado 2500

My package was damaged in transit and the hitch ball was missing. Customer service was awesome and very quick to make it right.


This is the second item I have purchased from Etrailer and couldn’t be more happier. The first was a front Jack stand for a fith wheel. Works great, looks great. This new one is a wire harness for a truck bed, side wall mount plug for my fith wheel. Thanks to Julie it was a easy installment. Julie was a very big help. Thanks for all your help.


Arrived quick and installed it today. I bought the ten foot due to using it for a truck camper. Installed on my 2021 Chevy 3500 dually (8 foot bed).

Easy to follow directions and I was able to run it all the way up the driver's side to the new location.

Scariest part was cutting a hole into my brand new truck.

I sprayed the hole with spray bed liner to coat the edges that were just cut. It comes with metal screws that I sprayed black also.

Took about an hour to install.

2011 Chevrolet Silverado 2500

Great product easy install plug n play. Installed on 2011 Chev 2500 hd to pull 5th wheel trailer plugged over tailgate when first bought but got extremely tight on turns and almost unplugged from truck installed in bed of truck no worries now would highly recommend. Great price also 20.00 dollars cheaper than RV store

2012 Dodge Ram Pickup

This wiring harness is great, it is easy to install with no problem. I installed it within an hour.

Stanley B.


Great I havent had any problems


Piece of cake install after reviewing some [online] videos. Approximately 1 hour to install. Did the install on a 2019, Dodge Ram, 2500, Bighorn. 2 1/8” hole bit did the trick for mounting in the bed, and dropped the spare tire to run the wire harness. Did come with dielectric grease for the connections!


I used this harness to bring power to the front corner of my bed. Then I shaved down the wires for the lights and soldered on the wires from my 6pin Lance harness for the lights. I then ran the 8gauge Lance wires to the battery. Works perfectly.


Easy install

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