Price: $58.79

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

Item # 41157

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hopkins custom fit vehicle wiring fifth wheel and gooseneck endurance 5th wheel/gooseneck 90-degree harness with 7-pole plug
hopkins custom fit vehicle wiring fifth wheel and gooseneck 7 blade endurance 5th wheel/gooseneck 90-degree harness with 7-pole plug
hopkins custom fit vehicle wiring 7 blade 41157
hopkins custom fit vehicle wiring 7 blade
hopkins custom fit vehicle wiring 7 blade 41157
hopkins custom fit vehicle wiring fifth wheel and gooseneck endurance 5th wheel/gooseneck 90-degree harness with 7-pole plug
hopkins custom fit vehicle wiring fifth wheel and gooseneck
hopkins custom fit vehicle wiring fifth wheel and gooseneck endurance 5th wheel/gooseneck 90-degree harness with 7-pole plug

In Use/Installed

2016 ram 2500 custom fit vehicle wiring hopkins fifth wheel and gooseneck 7 blade endurance 5th wheel/gooseneck 90-degree harness with 7-pole plug
2016 ram 2500 custom fit vehicle wiring hopkins 7 blade 41157
2016 ram 2500 custom fit vehicle wiring hopkins 7 blade in use
2016 ram 2500 custom fit vehicle wiring hopkins fifth wheel and gooseneck in use
2016 ram 2500 custom fit vehicle wiring hopkins  41157
2016 ram 2500 custom fit vehicle wiring hopkins 7 blade 41157
2016 ram 2500 custom fit vehicle wiring hopkins fifth wheel and gooseneck endurance 5th wheel/gooseneck 90-degree harness with 7-pole plug

Customer Photos

hopkins custom fit vehicle wiring fifth wheel and gooseneck 7 blade 41157
hopkins custom fit vehicle wiring fifth wheel and gooseneck 7 blade 41157
hopkins custom fit vehicle wiring fifth wheel and gooseneck 7 blade 41157
hopkins custom fit vehicle wiring fifth wheel and gooseneck 7 blade 41157
hopkins custom fit vehicle wiring fifth wheel and gooseneck 7 blade 41157
hopkins custom fit vehicle wiring fifth wheel and gooseneck 7 blade 41157
hopkins custom fit vehicle wiring fifth wheel and gooseneck 7 blade 41157
hopkins custom fit vehicle wiring fifth wheel and gooseneck 7 blade 41157
hopkins custom fit vehicle wiring fifth wheel and gooseneck 7 blade 41157
hopkins custom fit vehicle wiring fifth wheel and gooseneck 7 blade 41157
hopkins custom fit vehicle wiring fifth wheel and gooseneck 7 blade endurance 5th wheel/gooseneck 90-degree harness with 7-pole plug


  • Custom Fit
  • Fifth Wheel and Gooseneck Wiring
  • Hopkins
  • 7 Blade
  • 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. Call 800-298-8924 to order Hopkins custom fit vehicle wiring part number 41157 or order online at Free expert support on all Hopkins products. Guaranteed Lowest Price 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.

Hopkins Custom Fit Vehicle Wiring - 41157

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

This Product Fits The Following Vehicles

2009 - 2014 Dodge Ram Pickup 1500 with factory 7-Way

2010 - 2014 Dodge Ram Pickup 2500 and 3500 Pickup with factory 7-Way

2017 - 2017 Toyota Tundra 5-1/2 Foot Bed

2015 - 2015 GMC Sierra 3500 6-1/2 Foot Bed

2017 - 2017 Toyota Tundra 6-1/2 Foot Bed

2015 - 2015 GMC Sierra 3500 8 Foot Bed

2017 - 2017 Toyota Tundra 8 Foot Bed

2010 - 2018 Ram 1500 with factory 7-Way

2010 - 2017 Ram 2500 with factory 7-Way

2010 - 2017 Ram 3500 with factory 7-Way

2008 - 2018 Ford F-150 with factory 7-Way

2008 - 2014 Ford F-250 and F-350 Super Duty with factory 7-Way

2015 - 2015 Ford F-250 Super Duty with factory 7-Way

2015 - 2015 Ford F-350 Super Duty with factory 7-Way

2008 - 2017 Ford F-450 Super Duty with factory 7-Way

2001 - 2013 GMC Sierra with factory 7-Way

2014 - 2018 GMC Sierra 1500 with factory 7-Way

2014 - 2018 GMC Sierra 2500 with factory 7-Way

2014 - 2018 GMC Sierra 3500 with factory 7-Way

2007 - 2007 GMC Sierra Classic with factory 7-Way

2007 - 2007 GMC Sierra New Body with factory 7-Way

2001 - 2013 Chevrolet Silverado with factory 7-Way

2014 - 2018 Chevrolet Silverado 1500 with factory 7-Way

2014 - 2018 Chevrolet Silverado 2500 with factory 7-Way

2014 - 2018 Chevrolet Silverado 3500 with factory 7-Way

2007 - 2007 Chevrolet Silverado Classic with factory 7-Way

2007 - 2007 Chevrolet Silverado New Body with factory 7-Way

2004 - 2017 Nissan Titan with factory 7-Way

2016 - 2017 Nissan Titan XD with factory 7-Way

2014 - 2018 Toyota Tundra with factory 7-Way

See All Vehicle Fits

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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   (1094 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.

- 41157

by: Phillydb10/05/2016

The Curt Q20 with R20 slider hitch arrived just as promised in 3 days after placing the order. The Q20 head box was totally destroyed. The manufacture packaging was not made to ship individually using small package carrier such as UPS. Upon inspection I discovered that the bolts and washers were missing. I contacted Bill at E-trailer and told him. He explained that the replacements would have to come from the manufacturer and would take several days. I told him that I already scheduled an install and really needed those bolts and washers. He was able to round some up for me and shipped them out next day and they arrived on Monday just as promised. I also spoke with Bill about not being able to remove the head unit for the hitch. It needed to be removed to be able to install it on the slider. It seemed to be stuck and I could not budge it. I assumed that it may have been damaged in shipping, especially after receiving it in a demolished box. He explained to me that since it was new its tolerances were tight and I might try taking a pry bar to it. Well that did not make me feel real good. He was totally correct. Just a little more effort with a pry bar moved it just enough for the bushing to squeak loose and the head came right out. I am disappointed in the jaws on this unit. They look like they were forged by a 3rd grader. Not smooth and somewhat pitted. They are not machined jaws for sure. Had it all installed using the new Reese rail brackets for the 2017 F250. Everything went smooth. An added plus is the quiet ride when not connect to trailer. Can’t even notice the hitch is back there. My other hitch rattled and clanked all the time and was so annoying. I just hooked my 38ft 5th wheel for the first time. It was smoother and easier than any other hitch I have ever used. I bought the sider unit which is recommended by all for the short bed. However I cannot use the slider as the king pin box slides too close to the tall tail gate. The new 2017 F250 is taller and the bed is deeper so I needed a hitch that would go up to 19 ½ inches. I will update after a my first run with trailer later this month. Everyone at E-trailer was outstanding. 5 Star. I will keep using them in the future. 303440

- 41157

by: Detrick09/27/2017

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. 437034

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by: Stan H06/12/2015

Bought this harness for our new Ram 3500. The local RV repair place wanted $250.00 to splice into my truck's harness, but I elected to get this custom harness. Gave me an excuse to buy a hole saw, and after watching the video, I was able to successfully install the harness in a little less than an hour. The connections are solid, the cable was easy to route, and the end result is cosmetically and functionally excellent. The harness was long enough to be able to choose among several routing paths. I was happy that they included dielectric grease, and was also happy that I had a stash of self-tapping screws in my parts box, because one wasn't included in the product package. You need a self-tapping screw to attach the ground to the truck frame. This could result in a trip to the hardware store if you don't happen to have some sitting around. The other item you will need is some longer zip ties. The ones included in the package are small, suitable for tying to a small hose, another wiring bundle, or an existing frame mounting point, but having longer ties will make the job easier, especially if you need to get creative with routing. As always, great service from It is a real pleasure to deal with these folks. 202738


No issues. Quality is excellent, hasnt shown any obvious signs of weathering.

Stanley M - 06/11/2016


- 41157

by: Phil A.02/07/2015

I bought this harness a couple of months ago, but being winter, I am just now getting outside to install it. The item appears to work exactly as described. The instructions could be more detailed. For instance there is a white wire with a screw connection hole which was not mentioned at all in the instructions. I assumed it to be a ground wire and grounded it to the frame of my truck. But the 90 degree aspect of the harness is great. It let me put it in a tighter spot. It probably took me a total of less than an hour to install it. What instructions there were, were accurate and made it simple. I plugged our 5th wheel into the new outlet and all was good. Then plugged the 5th wheel into the outlet at the back of the truck where the original connection was. Also good. So I have an in bed connection for the 5th wheel and a below the tailgate connection for a bumper pull. Could not be happier. Well, actually, I am happier about something than the item. I am extremely happy about my dealings with Etrailer. It shipped almost instantly and arrived sooner than I could have imagined. As it turns out, I was not in a hurry (obviously), but I could have been. And if I had been, it would have been awesome to have gotten my item that quickly. Thanks guys/gals. 172847

- 41157

by: Brandon B09/27/2015

Easy and fast to install and works great. This will save a lot of stress on my traler plug, worth every penny. Thanks for another great product. 227931


the wiring harness has worked flawlessly, I am very pleased with this product thanks

Brandon B - 09/29/2016


- 41157

by: Mick H.08/05/2015

I installed this plug and it was extremely easy and a very clean install. I wanted to use this unit because it did not require any splicing which can cause issues with the ITBC. It was only one 2-1/8 hole to drill and 4 self tapping screws and it was installed. I am very happy with this piece and would recommend it to anyone needing an in bed plug. 216893


Still working like day 1! No issues since install. Excellent product!

Mick H - 08/04/2016


- 41157

by: Bud P01/20/2016

The Hopkins 5th Wheel/GooseneckWiring Harness is a quality product. It fits my truck perfectly. I have many reasons I always return to etrailer. When you have a question or need assistance of any kind, the people at etrailer are most helpful, patient and knowledgeable and go the extra mile to make sure the customer is satisfied. Thanks etrailer! Bud P. 235897


Excellent, still working great!

Bud P - 01/19/2017


- 41157

by: Frank n Sheri K01/25/2017

How good is free shipping, our Order was placed about 8pm est on Thursday Jan 19th, and arrived Jan 25th before I returned from work at 4pm. Just sold the F-150 I installed the previous B&W fifth wheel hide a ball hitch in. Love this hitch set up, after arriving at a campground and unhooking the camper I have FULL use of the truck bed. Install of round two begins in the morning, directions are simple and easy to understand. George J from E-trailer has been keeping me updated with information about my delivery status and made himself available had I had any questions. Wife and I have been camping for about four years, on our second RV and now our third truck and have been totally satisfied ordering everything we needed from E-trailer over that time, (about 18-20 orders to date) adding to the great products E-trailer provides is the HOW TO DIY videos on many products. 338589

- 41157

by: Bob04/16/2015

Excellent product, installed quickly. Need to be careful when plugging the cables in, the pins may bend. 185423


Still working great, use it about 1 every 2 months.

Bob - 04/15/2016


- 41157

by: Larry06/20/2014

Great product! Now we can plug in our RV and not have to worry that the cable is rubbing on the tailgate wearing away the paint. Our truck is a 2015 Chevy Silverado 2500 HD and we our going to be traveling 24/7 and now no worries about new paint being damaged by cable rubbing on tailgate while driving. 136700


Great no problems what so ever

Larry - 06/20/2015


- 41157

by: Blase J05/13/2014

The harness was exactly what I was looking for. Worked perfectly. The video provided on how to install was excellent. The product took longer to deliver than expected, however, I did not "raped" on the shipping and took the economical choice. 130363


No issue at all. Working fine as intended.

Blase J - 05/18/2015


- 41157

by: Dan N.08/23/2013

I found the wiring harness to be in good shape upon delivering . I would request that the company include a mounting bolt and nut for the white ground wire.Seems to work fine once installed on the truck . Shipping was super fast and well packaged. 96491


Worked out great a year later!

Dan N - 02/21/2015


- 41157

by: Henry T01/09/2014

Installed on a 2012 F150. Took about 30 minutes, turned out great. I used my own wire ties as the ones included were very small. Other than that: great kit, complete and easy to install! 112339


Simplified hook - up and off, worth every penny I paid for it!

Henry T - 01/09/2015


- 41157

by: cdave09/23/2014

Great product. Fit 2009 Silverado 3500 without splicing. Replaced existing unit installed by RV outlet which was causing problems. Very pleased Easy install. 30 minutes maybe. 152754


Still working great. Pleased.

cdave - 09/28/2015


- 41157

by: Jerry H.11/20/2014

Great service, great product. I'll check etrailer first for any future RV or automotive needs. Thanks again... 161973


They seem to work just problems.

Jerry H - 11/20/2015


- 41157

by: Dennis T04/10/2015

Got exactly what I needed. Didn't take long to get it. Good quality parts. The video on how to install was very helpful. 184659


Its working great

Dennis T - 04/09/2016


- 41157

by: Larry L.01/26/2016

Great product and very easy to install! Most important, the folks at etrailer are great to work with! 236293


Thanks to you it is great!

Larry L - 01/25/2017


- 41157

by: Lee M10/16/2014

package good and easy to install 156135


Great, very easy to install good price as well , I put several in for other people as well

Lee M - 10/16/2015


- 41157

by: Phil06/28/2013

Product as pictured. operates as stated. reduces hassle of running trailer wires 86573


still working as stated. worth my money

Phil - 12/30/2014


- 41157

by: art h07/02/2013

worked as advertised...took about 10 minutes to install. 87042


Product is still performing as advertised. thanksArt

art h - 12/31/2014


- 41157

by: J C W06/04/2015



very good

James W - 06/03/2016


- 41157

by: James K10/03/2015

This product is as said, it is very easy too install. 229045


It is working fine, no problems.

James K - 10/02/2016


- 41157

by: kris03/31/2014

Exactly how they said it was. Easy to i nstall. 122991


Works good no problems with it.

kris - 03/31/2015


- 41157

by: thomasA07/27/2013



works great

thomasA - 01/27/2015


- 41157

by: Greg P.11/16/2015

This wire harness was exactly what I was looking for. My GMC Sierra only had a bumper connection and this meant the cable from my 5th wheel RV hung over the tailgate and wasn't well contained. After watching the installation videos, the installation was straight forward. While waiting for the wiring harness to arrive, I purchased a hole saw and cut the hole in the side of the truck bed. Once the harness arrived, installation took about 30 minutes. It is now much handier to have the cable to the 5th wheel in the truck bed when connected. 232065

- 41157

by: Aaron05/26/2016

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. 252037


The product is still working great a year later

Aaron - 06/01/2017


- 41157

by: Keith C06/02/2014

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 133750

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by: Trever H05/13/2014

I assumed this would be a plug and play connector and go together seamlessly. However I found that the end connector that plugs into the factory harness does not lock appropriately. I made sure there were no bent pins. The locking clip and connector did not want to stay locked and I do not understand why. A 1/2 hour install turned into 2.5 hours which ended with ultimately using a zip tie to hold the two connectors together. I'll probably end up buying a another harness that will work. 130421

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by: Greg Ohrn09/14/2017

[another website] sent me twice, a 7 way plug and 3ft of wire for this part . I was running out of time and knew if I ordered this from e-trailer they would get it right! They got it right!! Shipping was fast as well as packaging. Thanks George!! This Pooduct was easy to install and works great! I like that the lid flips up 180 degrees. It also comes with the die-electric grease!! I used spray bedliner material around the hole to prevent rust! 432218

- 41157

by: Bill12/08/2016

I had to replace the 7 pole plug. After a few months the plug started getting hot. Checked all the connections, all of the wires were secured. Went to local parts store and got a replacement. Same brand so far working very well. Not sure if I would buy online again. Because if I have a problem I can not wait for another plug to be shipped. So I am stuck not being able to use my trailer. I think Hopkins make good products. I just got a bad one. 323357

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by: David O10/25/2016

This was really easy for not too mechanically inclined person. It really is a simple plug and play device. Just read the instructions or watch the installation video on e-trailer website. Visually verify that you are only drilling through a single panel if possible. Sometimes there is other sheet metal in there. Also have a quality metal hole saw on hand. Makes a lot smoother cut. All functions worked perfectly after installation. 310592

- 41157

by: KATHLEEN B.08/06/2017

We just installed this last night on our truck. The instructions are easy to fallow. We will get our new 5th wheel next weekend so we will see then if they hold up. We love excellent customer service and fast shipping. Chris W thank you so much for taking care of our order so quick!!! We are working so hard on getting everything installed before we get our new 5th wheel!!! Your Amazing!! 420675

- 41157

by: Mark G.10/26/2013

Product arrived quickly and in perfect condition. The harness took about 30 minutes to install from start to finish. Good quality and you really don't need the instructions because this is a plug and play part. I had to drill one hole with 2 1/8" hole saw to mount the plug receptacle using the supplied four self drilling screws to secure it then plug it in using the adapter and your done- Easy. 105287

- 41157

by: David M06/15/2017

This is a great brake harness for my new Dodge Ram 2500 truck making it easier to hook up the 5th. wheel trailer brake conector. All I can say is Shipping was excellent, quality is excellent, instructions were very easy to follow as well as a u-tube video. And last the price was awesome compared to others. I have to give ETRAILER a full thumbs up on this harnesse. 394381


David M., Hopkins appreciates your business and is grateful you purchased our Wiring Harness. The Endurance™ Professional Grade products are designed with maximum durability, enhanced weatherproofing and superior ergonomics backed by industry leading 3 year Warranty. If you have any concerns or questions, please get in contact with etrailer customer service.

Hopkins C from - 06/20/2017


- 41157

by: Robert H03/13/2017

I just received my order to day everythings here and looks to be in good shape it took 5 days to get here weekend included.I think that's great very happy so far.I haven't installed any thing yet being 15 degrees out and no garage but when I do i know etrailer will be there to help great company I will continue to do business with them with confidence. 356007

- 41157

by: Joel P.03/24/2014

I had a spray-in done on my truck, and was going to pay to have this installed at the same time. After watching the video on I decided to do it myself. What a waste of money that would have been! Total time was just under 10 mins, and was EXTREMELY simple. YOU GOT THIS. 121918


So did you install after you did the spray in liner?

-- comment by: Lance - 10/16/2015


I did.

-- comment by: Joel P - 10/19/2015


- 41157

by: Marvin M07/10/2014

Received the Hopkins wiring harness yesterday and installed it this afternoon. Any one could install this harness it is that easy. It took me longer to find my 2 1/8 inch hole saw than it took to install the harness. Just unplug factory harness and plug in new one and was done. As usual I received great service from etrailer. 140662

- 41157

by: JV09/21/2016

Plug and wiring were easy to install,just followed directions, entire project took less than one hour including tying up the wires and drilling the hole. Plugged trailer connector into both plugs and they worked just like they should. Probably one of the best and most reasonably priced kits on the market, I highly recommend! 297270

- 41157

by: Steve04/15/2014

Very well satisfied with product, easy to install after watching video. Only down fall was the shipping, UPS delivered it to my hometown post office, instead of my house. Had to make a trip to town (12 miles) to get my parts, plus delayed installing them a couple of days. Otherwise very happy to have it inside the pickup box. 125176

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by: KC01/22/2017

Well thought out design on this product. Literal plug and play, just route it and secure the excess. I chose this one over the others they carry because the socket mounted to the bedside is replaceable separately should you snap the cover off etc. The cover opens 180 degrees too for a bit of extra visual when plugging in. 334467

- 41157

by: Kevin10/24/2013

I was a little skeptical when I ordered because I've ordered stuff on the internet before only to have it show up weeks later or even a call telling me a mistake was made and they didn't have the product but I have to say with etrailer I got my product fast and at a great price. I will definitely order from them again! 104935

- 41157

by: Larry H.05/26/2013

This was the easiest trailer wiring I have ever done..Even though it was so simple to install, the finished job looks like a professional did it.. The people at E-Trailers went out of their way to make sure I received the wiring harness, even after it was on back order.. OUTSTANDING service and product.. THANK YOU. 82035

- 41157

by: Gary J.06/19/2014

Good product - would recommend it. Need to take care picking where you place it - there are support beams under the bed that limit its location. Tried to squeeze it between the beam and the wheel well - clipped the edge of the inner liner but it worked. Also had issues with getting the trailer plug in - very tight. 136499

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by: Kevin R.06/30/2017

Problems from the start and and has not improved. Install was simple. Problems with trailer plugging into the outlet. More than one trailer with same result each time. Other trucks we have do not have any problems with the same trailers. To connect, usually have to force in with and will loose connection as we pull. 400459

- 41157

by: Robert N.06/27/2015

I stumbled across this part while looking at another part to try and fix what this one does. I received it a few days after ordering and installed it yesterday. I had the chance to see it in operation this morning and it works better than I imagined. Easy to install. The video on the website was very helpful. 207762

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by: Mike04/22/2017

I would rate so far as good to excellent. I installed today and the instructions were easy to follow and accurate. Will be leaving on an extended trip with the truck next week. My only concern is that the spring seems weak and I am concerned that the plug may have a tendency to come out during travel. 371010


Thanks for your comments and rating on the Hopkins 41157 Wiring Harness, Mike. This particular part is an Endurance™ Professional Grade part with a 3 year warranty. If you have concerns about the reliability of the harness feel free to call etrailer customer service to discuss.

Hopkins C from - 04/26/2017


- 41157

by: Geary W.11/11/2016

You have everything that I needed for my fifth wheel, and instructions. Very happy that I found your website. 315699


Everything still working great.

Geary W - 11/11/2017


- 41157

by: John01/27/2015

E-trailer experience - awesome customer service. Quick responses on questions. This product, I literally installed this in my truck in 20 minutes. Instructions EZ to follow, and simple plug into my existing F250 connectors. If your installing 5th wheel hitch, this is the product for your brake needs. 171304

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by: Eddie M.03/30/2015

Product is of excellent quality. I liked most the ease of installation. Product was received as advertised and in a short period of time. The video provided on the web site was very helpful in detailing installation. It provides me with the wiring plug for fifth wheel trailer in a very convenient place. 181669

- 41157

by: Donnie G12/08/2014

This kit is just what the Dr ordered for my Chevrolet 2500 HD! I installed this kit to make it easier to tow my gooseneck and 5th wheel trailers. Plugging in the light cord in the bed keeps it away from hanging it up and pulling out of the bumper mounted socket. Installation was a breeze!! Thank you!! 163606

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Ask the Experts about this Hopkins Custom Fit Vehicle Wiring
Do you have a question about this Custom Fit Vehicle Wiring?

  • What is the Best Truck for Towing a 5th Wheel Trailer
  • You are doing the right thing by doing the research first. There is a lot of conflicting information out there so let me break it down for you and I will provide some part recommendations at the end. Basically, if you want to tow a 5th wheel trailer, the best trucks are going to be long bed 3/4 or 1 tons like a Ford F-250/F-350, Chevy/GMC 2500/3500, or Ram 2500/3500. Half ton trucks could work but are not nearly as capable as the larger trucks. A long bed for sure is something you will...
    view full answer...

  • Towing Capacity of a 2016 Ram 1500 Quad Cab, 4x4, 5.7 Liter, Short Bed, with 3.21 Gears
  • Unlike the 3/4 and 1-ton Ram trucks the 1500 does not have a separate towing capacity for 5th wheel or gooseneck towing. Based on your truck, 2016 Ram 1500 Quad Cab 4x4 with 6 foot, 4 inch bed, 5.7 liter motor, and 3.21 rear end, and with standard rather than premium options the capacity can vary depending on the trim level of the truck: Outdoorsman, Big Horn, and Lone Star, 8,250 pounds Tradesman and Express, 8,150 pounds Sport, 8,000 pounds Laramie, 7,950 pounds Payload in general...
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  • 5th Wheel Trailer Hitch and Installation Kit for a 2017 Ford F-250 Short Bed
  • For your new 2017 Ford F-250 short bed you have some options for 5th wheel hitches and installation kits. For an install kit I recommend going with a custom kit, # RP50074-58. With a custom kit there is less drilling required and it takes less time to install compared to universal kits. And for a hitch I recommend the Reese Titan 20 # RP30870. This hitch is rated for 20,000 pounds, features the super-secure serrated dual jaw design, and it is cushioned. I have linked a video review of...
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  • Best Wiring Options for Towing a 5th Wheel Trailer
  • You have a few options when it comes to 5th wheel wiring for your truck. Most trucks come with factory 7-way trailer connectors at the bumper. If your truck has a factory 7-way, then I recommend installing a 5th wheel wiring harness like the Hopkins Endurance 5th Wheel Harness, # 41157. In-bed harnesses provide a quick and easy connection point in the bed, so you don't have to modify the existing trailer harness to make it longer or use an extension. This harness has a 90-degree plug,...
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  • 5th Wheel Trailer Hitch for 2016 Chevrolet Silverado 3500 with OEM Factory 5th Wheel Prep Package
  • We have exactly what you want. For the 2016 Chevrolet Silverado 3500, I recommend the Curt Q24 5th Wheel Hitch, # C16545-16025 because it was specifically designed to drop right into the under-bed mounts that come on your truck and it has a towing capacity of up to 24K. One thing to keep in mind is that this hitch is not compatible with Sidewinder or Reese Revolution pin boxes because the wedge on the bottom of those pin boxes can damage the Q series head. If you have a Sidewinder or Reese...
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  • Need to Tap into 7-Way on 2004 F-250 To Power Stop, Turn, Tail Lights on Headache Rack
  • Since you need to retain the use of the 7-way at your rear bumper for towing while having the same lighting signals available near the cab for your headache rack, one option to consider is using a 5th wheel harness such as # 41157 from Hopkins. This plug-in harness provides on one end dual round U.S. Car connectors in a Y-arrangement that allow you to tap into your existing 7-Way (while keeping all of its functions active for your tow rig). On the other end of the 8-foot cable is a standard...
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  • Comparing B&W Companion And Curt Q20 5th Wheel Trailer Hitch For 2017 GMC Sierra 3500 With Tow Pkg
  • Both of the hitches you asked about have some great features. They both have dual jaws for better king-pin contact, and both have the same towing and vertical load limit capacity. There are a few differences between the hitches. The hitch height of the B&W # BWRVK3700 is 16-3/4 - 18-3/4 inches where the Curt # C16530-16025 is 13 to 17-inches. The Curt has a 10-year warranty on the hitch and limited lifetime on the legs. The B&W hitch has a lifetime warranty. The jaws on the B&W hitch...
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  • Recommended No-Drill Fifth Wheel Frame Bracket/Bed Rail Install Kit for 2015 Chevy Silverado 2500
  • Reese offers two different no-drill frame bracket/bed rail options for your 2015 Silverado 2500, neither of which would require drilling into the truck frame. The inboard bracket kit, part # RP50066-58 is a bit less expensive, but is a bit more difficult to use, as the attachments between the bracket and the bed rail are made on top of the frame members, making them a bit more difficult to get to. Another option would be the Reese outboard rail kit, part # RP56001-53 that used bed rails...
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  • Recommended System To Tow A Gooseneck Or Fifth Wheel Trailer With 2016 Chevrolet Silverado 3500
  • I do have a system that lets you tow either a gooseneck trailer or a fifth wheel. First, you will need the EZr Double Lock Underbed Gooseneck Trailer Hitch, part # C611-624. This system gives you a gooseneck hitch in the bed of your truck with a 30,000-lb capacity. You would then need an adapter, part # C16220 to install in the gooseneck ball opening in the bed of the truck. This gives you base rails for a fifth wheel hitch like part # C16245. I recommend a different system for...
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  • Compatibility of an RBW 5th Wheel Trailer Hitch with Reese RP50064-58 Base Rail Kit
  • According to my contacts at Reese, the RBW Fifth Wheel Hitches are compatible with the Reese fifth wheel rails, including the Custom Installation Kit, part # RP50064-58. However, Reese hitches will not necessarily fit in the RBW rails. I am including some links to additional information on towing with a fifth-wheel hitch and to the installation instructions and video for the # RP50064-58 base rail kit, if needed. If you don't already have a 7-way trailer connector installed in your...
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  • Availability of B&W Companion 5th Wheel Hitch With 25K Head
  • I've checked with my B&W representative, who tells me that to get the Companion base with a 25K head, you'd need the following parts: Companion base, part # BWRVB3500 25K Head, part # BWRVC3006 Install Kit, part # BWGNRK1314-5W If you don't already have a 7-way trailer connector in the bed of your truck, you can install one using part # 41157. You can see the current pricing for the items mentioned above by clicking the provided links. I've linked you to install videos for...
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  • Installing a Reese 14K Fifth Wheel Hitch on a 2005 Chevy Pickup
  • I have included a link to the installation instructions for the universal kit, # RP30035. Instructions for your 2006 Chevy Silverado start on page 5. We have a video that shows the installation process. Because you have a short bed pickup, please make sure your hitch has a slider on it. Otherwise, there will not be enough clearance at the front of your trailer, and the corners will impact your cab during sharp turns. If you don't already have a 7-way trailer connector installed in...
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  • Availability of B&W Gooseneck Hitch for 2015 Chevy Silverado 2500HD
  • B and W does indeed offer a gooseneck fit for the 2015 Silverado 2500, part # BWGNRK1012. I have linked you to a product demonstration and an install video that you might find helpful. To install a 7-way trailer connector in your truck bed, you'd need part # 41157.
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  • Recommended Fifth Wheel Hitch for FW Flagstaff # 85258IKWS Compatible with Reese Revolution Pin Bux
  • The Reese Revolution is the OEM version of their aftermarket Sidewinder. Lets begin with the Curt Q20 fifth wheel hitch, part # C16130. Curt makes a great hitch, and I really like the spherical axial bearing they use to allow full 360 degree tilting movement. The double jaw used in the hitch grabs the fifth wheel king pin from all sides, reducing rattle and chucking. The built-in cushioning further reduces how the rattling, clatter and chucking is transferred to the vehicle. However,...
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  • In-bed 5th Wheel/Gooseneck Trailer Wiring for a 2014 Ram 2500
  • If your 2014 Ram 2500 came with a factory installed 7-Way connector, which it should have, then I recommend in-bed wiring harness # 41157. It is pre-wired and ready to plug in line with the 7-Way at the back of the truck. I have included a link to a video showing how it installs.
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  • Brake Controller and Wiring Harness for a 2016 Ford F-150
  • If your new Ford F-150 came with the factory installed brake controller then you would not have to add an aftermarket one to activate the trailer brakes. If the truck does not have the factory controller and you need to control the brakes then you will need one. For a brake controller I recommend the P2, # 90885, because its easy to set up and use and it is reliable. You will also need the appropriate wiring harness to plug the controller into the truck. You did not mention the year...
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  • What is the Best Truck for Towing a 5th Wheel Trailer
  • You are doing the right thing by doing the research first. There is a lot of conflicting information out there so let me break it down for you and I will provide some part recommendations at the end. Basically, if you want to tow a 5th wheel trailer, the best trucks are going to be long bed 3/4 or 1 tons like a Ford F-250/F-350, Chevy/GMC 2500/3500, or Ram 2500/3500. Half ton trucks could work but are not nearly as capable as the larger trucks. A long bed for sure is something you will...
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  • Fifth Wheel Rail Kit Recommendation for a 2016 Chevy Silverado 2500HD without Factory Rail Kit
  • For your 2016 Chevy Silverado 2500 short bed all you would need is a set of industry standard fifth wheel rails confirmed to fit the truck to allow you to use your RBW Lil Rocker hitch. The easiest to install are going to be the Reese Outboard rail kit part # RP56001-53 which are a custom fit kit for your 2016 Silverado. I attached an install video for you to check out as well. For a 7-way to install in the bed of your truck to make connecting your trailer lights easier you would...
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  • 5th Wheel Towing Capacity and Hitch Recommendations for a 2016 GMC Sierra 2500HD Short Bed
  • The dry hitch weight, also called tongue weight for travel trailers or pin weight for 5th wheel trailers, is the amount of weight pushing down on the trailer hitch. Dry means the trailer is empty; no cargo, water, propane, just the trailer by itself. So the dry weight is less important than the actual hitch/tongue/pin weight when the trailer is loaded and ready to tow. Based on the figures you have provided the trailer has a hitch weight that is 21 percent of the gross trailer weight...
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  • Can the Curt Q20 5th Wheel Hitch Work With a Reese Revolution/Sidewinder Pin Box
  • I have a solution for you, but the Curt Q20 Hitch # C16530-16025 for the 2017 GMC Sierra w/Factory Rail Kit is not compatible with rotating pin boxes like the Reese Revolution and Sidewinder pin boxes. With that said, Curt does have the A20 5th Wheel Hitch for the Chevy/GMC Factory Towing Package, # C16064, that is compatible with the Reese rotating pin boxes. You will need to use the Sidewinder Wedge for the Curt A16 and A20 Hitches, # C16992, at the hitch and pin box connection. The...
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  • Fifth Wheel Hitch Using Underbed Mounting Rails for 2014 Ram 2500
  • B and W has a solution that would allow you to install a fifth wheel hitch with an underbed mounting system. Their Companion # BWRVK3500-5W fifth wheel hitch would install into their Turnover Ball Gooseneck, part # BWGNRK1384-5W. When the fifth wheel hitch is removed, you would have full, unobstructed use of your truck bed. You would also have the advantage of being able to tow a gooseneck trailer if the need should arise. This will only be a solution if your truck has coil springs in...
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  • Gooseneck In-Bed Wiring Harness On 2016 Nissan Titan XD
  • If the 2016 Titan has a 7-way connector at the rear of the vehicle there is an easy way to add the in-bed wiring. I recommend the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness, part # 41157. This plugs into the wiring at the back of your 7-way and retains your 7-way by the bumper. You then just route the wiring to the location in the bed where you want to install it, use a hole saw to make the mounting hole and that's it. I have attached a link to an installation video...
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  • Recommendation on a 5th Wheel Hitch to Fit a 2015 Ford F-350 w/ 8 Ft Bed and OEM Prep Package
  • For your 2015 Ford F-350 Super Duty, I recommend the Curt A16 5th Wheel Hitch with Ford OEM Legs, # C16520-16017. The Curt hitch is rated up to 16,000 lbs of gross towing weight and 4,000 lbs of vertical weight. The Curt A16 uses a locking dual jack system that will provide 360-degree of contact between the jaw and the trailer's king pin. The more secure king pin to hitch fit will decrease rattles and noise that you see with traditional slide-bar hitches. The best feature of the...
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  • Adding In-Bed 5th Wheel/Gooseneck Trailer Wiring on a 2013 Dodge Ram 3500
  • For the 2013 Dodge Ram 3500, if the truck came with a factory 7-Way trailer connector (most of them do), then there are 2 options for adding in-bed 5th wheel/gooseneck trailer wiring. First, you can use # 41157. This connector plugs in line with the factory 7-Way just behind the connector at the back of the truck. Second you can use # PK11893-11932. This harness also plugs in line with the factory connector but requires a little manual hardwiring as well. The diagram for this is on the...
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  • Difference Between B&W # BWRVK3400 and # BWRVK3400-5W
  • There is no difference between the # BWRVK3400-5W and the # BWRVK3400, other than the fact that we offer the # BWRVK3400-5W as a 5th wheel hitch and # BWRVK3400 as a Gooseneck to 5th Wheel Hitch Adapter. It's the exact same sliding fifth wheel hitch that's designed to fit into a B&W Turnover Ball Gooseneck Hitch. We do this so it will run through our fitguide. If you don't already have a 7-way trailer connector installed in the bed of your Ford, you can easily install one using part # 41157.
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  • In-Bed 7-Way Wiring Harness for 2015 Chevrolet Silverado 3500
  • We offer the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness with 7-Pole Plug, # 41157, for your 2015 Chevrolet Silverado 3500. This wiring harness simplifies the hookup of your 5th wheel or gooseneck trailer by providing a 7-way connector in the bed of your truck.
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  • Towing Capacity and 5th Wheel Hitch Recommendations for a 2016 Ram 3500 Crew Cab Long Bed 4x4 Diesel
  • The problem is that there are several applications like the one you have used and you will get a different answer from each one. But the vehicle manufacturer has already done all of that work for you! The towing capacity is in the owner's manual. You can also look at the sticker in the door jamb. If you subtract the gross vehicle weight rating (GVWR) from the gross combined weight rating (GCWR) then that will tell you the towing capacity of the truck. But I can tell you now that a 2016...
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  • Wiring Harness for 2015 GMC 2500 with Factory 5th Wheel Wiring
  • The factory 5th wheel/gooseneck wiring harness will be bundled up either behind the spare tire at the bumper beam or on the driver-side frame rail behind the rear tire. The factory harness will have a plug, likely with a cap, that connects to the back of a 7-way connector, like # PK11893, and is likely protected by wire loom. This harness should be long enough to reach to the side of the bed to install a 7-way trailer connector. If you cannot find the factory 5th wheel/gooseneck harness,...
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  • Battery Isolation Solenoid Installation on a Cab Over Camper
  • A deep cycle battery can be used in this scenario with no problems as long as it is wired properly. A deep cycle battery is capable of longer run times, more amp hours = better battery, and more charging cycles for deep discharges. I recommend using a Group 24, 28, or 32 Deep Cycle battery. Wiring your truck battery to a secondary 12v Deep Cycle battery through the Battery Isolation Solenoid , # TR118665, will prevent the cab over camper from drawing power from your truck battery when...
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  • Fifth Wheel Install Kit for 2013 Ford F150 with 5-1/2 Foot Bed Length
  • The Reese Semi-Custom Install Kit you referenced, part # RP30035-426 is indeed a compatible fit for your 2013 Ford F150 Super Crew. The install kit uses industry-standard fifth wheel bed rails that are compatible with your Husky hitch. For a custom install/bracket kit that uses existing holes in the truck's frame which would be considerably easier to install, use # RP50081-58. In order to gain the proper clearance between the rear of the truck cab and the front of the fifth wheel,...
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