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

Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole and 4-Pole Connector

Item # HM54FR
Our Price: $116.28
Custom Fit Vehicle Wiring

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Get a 7-way, RV-style connector in your truck bed for easy hookup of your fifth-wheel or gooseneck trailer. 90-Degree harness plugs in-line with factory wiring and retains use of your 7-pole connection. Connector also provides a 4-way flat socket. 1-800-940-8924 to order Hopkins custom fit vehicle wiring part number HM54FR or order online at etrailer.com. Free expert support on all Hopkins products. Great prices and Fastest Shipping for Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole and 4-Pole Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (195)
  • Q & A (0)
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Hopkins Custom Fit Vehicle Wiring - HM54FR

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

Get a 7-way, RV-style connector in your truck bed for easy hookup of your fifth-wheel or gooseneck trailer. 90-Degree harness plugs in-line with factory wiring and retains use of your 7-pole connection. Connector also provides a 4-way flat socket.


Features:

  • 7-way, blade-style connector installs in your truck bed for hassle-free hookup of 5th-wheel and gooseneck trailers
    • Connector fits into the factory cutout in your truck bed
  • Simple installation - no cutting or splicing required
    • Plug the T-connector in between the OEM wiring harness and your vehicle's factory-installed 7-way connector
    • Run the 6' long wiring harness from the rear bumper into your truck bed
  • Enhanced weatherproofing with internal seals, corrosion-resistant terminals and rubber-coated copper wiring
  • Socket provides 7-way and 4-way connectors
    • Socket made of durable ABS plastic
  • Includes dielectric grease packet and nylon ties for installation


Specs:

  • Harness length: 6'
  • Wire gauges:
    • Purple/green/yellow/brown: 16
    • Blue/red/white: 12
  • Warranty:
    • Wiring harness: 3-year limited warranty
    • Connector: 1-year limited warranty


Note: Only one connector - a 4-way or a 7-way - can be used at a time because the covers on this socket will not open far enough to allow use of both plugs at the same time.



40975 Hopkins 7- & 4-Pole Connector

41158 Hopkins Endurance 5W/Gooseneck Wiring Harness - 7W RV - 6'



This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole and 4-Pole Connector - HM54FR

Average Customer Rating:  4.8 out of 5 stars   (194 Customer Reviews)

Get a 7-way, RV-style connector in your truck bed for easy hookup of your fifth-wheel or gooseneck trailer. 90-Degree harness plugs in-line with factory wiring and retains use of your 7-pole connection. Connector also provides a 4-way flat socket.

by:

It does the job. I do find that the trailer light pigtail does not connect great. Sometimes it doesn't make a good firm connection and I have to fuss with it to get the trailer lights on.



by:

Item arrived on time. The online install video was very helpful and made the actual install very easy. The only challenge was figuring out where to zip tie the cord.



by:

This wiring harness has worked very good on my truck



by:

Easy installation as promised



by:

Worked Excellent. Easy install. No longer need to run the cord over the tailgate, stays in the bed when connected to gooseneck hitch.

Don

4/28/2023

No issues after a year. Still working great. Will purchase again when needed.



by:
GMC Sierra

Fit in the factory location of my 2022 GMC Sierra pickup bed without modification. Easy installation and has been working fine ever since.



by:

Unfortunately it was not the right product for my 2022 gmc 3500hd. It did not fit the box factory cut out as in the video. It does work but not the product displayed in the videos.

Etrailer Expert

Jenny N.

5/23/2023

It is unusual to hear that it did not fit into the factory cut out on your 2022 GM Sierra 3500. Would you be able to send a picture of how it fit in your truck bed.

David

5/24/2023

Here are a few of the pictures. It is my guess they probably just sent me the wrong piece.

Etrailer Expert

Jenny N.

5/24/2023

The pictures really help and I am now closer to what may have happened. Did you receive part # HM40975 with this wiring kit?

David

5/24/2023

No, I did not.

Etrailer Expert

Jenny N.

5/24/2023

Yes, this makes more sense. The harness should have come with it and it is that connector that would fit into the cut out in the bed. I am asking our Customer Service team to review and reach out to you.



by:

My new truck came with gooseneck towing package except the harness inside the bed. I ordered the Hopkins prewired trailering harness from etrailer. After seeing the instructional video I attempted to do myself. I discovered it was easy as advertised. The connectors stubbornly unclipped and clipped but all worked. I found the wiring length was well protected and the perfect length. I did notice on the 2020 Silverado had extra wiring so that the clip on the bumper did not need switching out. I also discovered I did not need to remove spare as the access of the wiring behind bumper was plenty. I stuck with the video instructions. Tested perfect and done. What I liked about the product was that it fit and matched the other factory components. Literally no tools required except to cut zip ties.



by:
2022 Chevrolet Silverado 2500

The lead is like 5 feet too long to go in the factory location for the plug



by:

Perfect excellent transaction great product AAA+



by:

I am extremely happy with the purchase. Very durable harness and easy to install.



by:

etrailer customer service is incredible- I’ve been doing business with them for years - they always come through! Special shout out to Eric!



by:

Easy 15 minute plug and play install in our 2022 Chevrolet Silverado 3500 LT and it works great!



by:
2021 GMC Sierra 2500

The item itself is great. Plug and play, easy and quick install. The problem I had was etrailer failed to include the 4/7-way plug adapter that pops directly in the factory bed cutout (it is a separately packaged item included in this kit). I called them the next morning and they took care of getting it shipped out within the day. Problem is they shipped via usps and took almost one week to get to me. was looking forward to using it within that time frame, instead had to run the cable over my new truck’s tailgate… I believe that if a mistake is made it should be corrected as quickly as possible, not as cheaply as possible.



by:

Quick delivery and it worked for my tru ck.



by:

Easy installation



by:

plug and play simple install and great support

Dennis

1/5/2023

working well no problems at all very easy install



by:
Ram 2500

GLAD I WENT WIHT eTRAILER. PERFECT FIT AND VERY EASY, PLUG-N-PALY. WORKED GREAT FOR REPLACING BLANK PLUG IN BED TO 5TH WWHEEL PLUG IN BED OF 2022 CHEVY 2500 HD



by:
Chevrolet Silverado

Plug and play! Would never know it's not factory on my truck (2022 Silverado 3500.)



by:
2020 GMC Sierra 2500

Came with no installation instructions had to go to YouTube for instructions, other than that everything was good.

Leroy

8/12/2022

Working as it should



by:

Easy to install and works great.



by:
2020 Chevrolet Silverado 2500

This harness was easy to install and works great!



by:
Chevrolet

I own a 2020 Chevrolet 2500HD I purchased the harness for my fifth wheel which made it easier to keep the trailer plug in the bed versus laying over the tailgate. As described this harness is literally plug and play. Took me 15 minutes and I was up a running, I purchased this harness 1 year ago . I have not had any issues and definitely made the hook up a breeze.



by:

Easy to install. Works perfectly. Love it.



by:

took a little work to get the OEM bumper plug removed but other than that everything worked great


25
195
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See what our Experts say about this Hopkins Custom Fit Vehicle Wiring

  • Hopkins Endurance HM54FR Tabs Will Not Engage Into Bed Side Causing Connector To Fall Out
    It sounds like the hole in the bed of your 2021 Chevrolet Silverado 2500 has to much bed liner material on the hole for the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness # HM54FR. This would cause the connector to not push in far enough for the clips to seat into the sides of the steel and hold the connector in place. You may need to sand down the excess bed liner material to get the connector clips to fully engage when you press it in.
    view full answer...
  • Can Hopkins Gooseneck/5th Wheel 7-Way Kit Fit 2020 Chevy SIlverado 2500 with HD Surround Vision
    The camera wiring near your 7-way wouldn't be carried on the 7-way wiring so the gooseneck 7-way kit part # HM54FR that you referenced would work great with it. I attached an install video for this kit on a similar 2020 Silverado for you to check out as well.
    view full answer...
  • In Bed Trailer Wiring Needed For 2022 Chevrolet Silverado 2500HD
    I suggest the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole and 4-Pole Connector, # HM54FR. This provides a 7-way, RV-style connector in your truck bed for easy hookup of your gooseneck trailer. The 90-degree harness plugs in-line with factory wiring and retains use of your 7-pole connection.
    view full answer...
  • 5th Wheel Wiring Harness For a 2022 Chevrolet Silverado 2500
    Yes, we do have the 5th wheel wiring harness that you are needing for your 2022 Chevrolet Silverado 2500. - Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness # HM54FR The Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness # HM54FR will move a 7-way into the bed of your truck to make hooking up your 5th wheels wiring easier. It will also retain the use of the factory 7-way at the rear of your truck.
    view full answer...
  • Does Hopkins 7-Way/4-Way HM54FR Fit 2020 Chevy Silverado 2500
    The Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole and 4-Pole Connector # HM54FR that you referenced does fit your 2020 Chevy Silverado 2500 and gives you the ability to install a 7-way/4-way in the bed of your truck. This plugs into the back of an active 7-way and allows you to put an additional 7-way in the bed of the truck via the longer harness that comes with it.
    view full answer...
  • 7-Way Socket for 2020 GMC Sierra with Gooseneck Bed Wiring for 7-Way Ran
    Since you already have 7-way wiring ran near your truck bed you could install the Pollak 7-way part # PK12-707E in the bed and then run the wiring you mentioned directly to it and you'd be set.
    view full answer...
  • Will Trailer Wiring Still Function After Install of Hopkins 5th Wheel/Gooseneck Wiring
    Yes, all of your current trailer wiring will work after you install the Hopkins Endurance part # HM54FR on your 2020 Chevy Silverado 2500.
    view full answer...
  • Factory Style In Bed Trailer Wiring Connection For a 2023 Chevrolet Silverado 2500
    Yes, the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness # HM54FR will allow you to install the in bed wiring on your 2023 Chevrolet Silverado 2500. This is the same style as the factory connector and will clip into the factory cutout without modification. The wiring will tee into the factory 7-way on your bumper.
    view full answer...
  • 5th Wheel Wiring Harness for 2020 Chevy Silverado 2500 With Factory Cut Out
    There is a 5th wheel wiring harness for your 2020 Chevy Silverado that was designed to fit perfectly in the factory cut out in your truck bed. The harness you need is the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness # HM54FR. I have added a photo showing this harness installed in a 2020 Silverado 2500 for you to see how it will look in your truck.
    view full answer...
    Image 1 for
  • In Bed Trailer Wiring For 2021 Chevrolet Silverado 2500HD
    You will actually be needing the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness # HM54FR for your 2021 Chevrolet Silverado 2500HD. This will ensure you have the correct wiring and length needed to install in your truck bedside. The # HM11141144 is for a Chevrolet Colorado.
    view full answer...
  • Gooseneck and 5th Wheel 7-Way in bed Wiring Harness for a 2021 Ram 1500
    I have a solution for you but the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness item # HM54FR you were looking at is for a 2019-2022 GM truck. For a 2021 Ram 1500 you are going to want the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness with 7-Pole Plug item # 41157. I have linked an installation video.
    view full answer...
  • Recommended 7-Way and 4-Way In Bed Wiring Harness for a 1999 Ford F-250
    Yes, we do. It is the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole and 4-Pole Connector item # HM54FR. So long as your 1999 Ford F-250 came with a 7-way harness from the factory, this wiring harness will connect to your existing wiring. I have linked an installation video below that will help you with the set up. This harness was made for newer GM trucks but the factory connectors are the same as your Ford.
    view full answer...
  • In Bed 7 way And 4 Pole Connector For A 2021 GMC Sierra 2500
    I'm sorry for the troubles you're having but I believe I have a solution. If you want to just add a 4 pole, I recommend using the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole and 4-Pole Connector # HM54FR. This will plug into the existing 7 way connector at the rear of your truck, and run to your truck's bed, giving you in bed access to a 7 way and a 4 pole trailer connector. Utilizing this harness will still allow you to use the 7 way at the rear of your vehicle.
    view full answer...
  • Correct In-Bed Trailer Plug and Harness for 5th Wheel On 2021 Chevy Silverado 2500/3500
    The correct plug and harness that is designed for the cutout in the bed of a 2021 Chevrolet Silverado 2500 is the 7-Pole and 4-Pole Trailer Connector Sockets w/ Mounting Bracket and Wiring part # HM40975-11998. It will hardwire into the wires under the bed and then install into the factory bed cutout. The metal bracket will not be used. I have attached an install video below.
    view full answer...
  • Is 7-Way and 4-Way Connector for Hopkins # HM54FR Designed to Fit in Bed of 2020 Sierra 2500
    The Hopkins Endurance 5th Wheel/Gooseneck Wiring Harness # HM54FR that you referenced is designed for exactly what you described. This is going to plug in-line with the factory 7-Way at the bumper of your Sierra 2500 to provide you with a separate 7-Way and 4-Way connector inside the bed for easy 5th wheel or gooseneck trailer hookup. The space you mentioned inside the bed rails is exactly where the oval shaped connector and bracket would be mounted. Please just note that the harness...
    view full answer...
  • Best 5th Wheel Hitch for 2022 Chevrolet Silverado w/ 6-3/4' bed and OEM Prep Package
    The 5th wheel hitch that I recommend for your 2022 Chevrolet Silverado short bed with OEM prep package is the B&W Companion OEM 5th Wheel Hitch w/ Slider # BWRVK3775. I like this hitch because it is sourced and manufactured in the USA and has a rail-free design that allows for full access to your truck bed when the hitch is removed. It also has a built-in slider that provides the clearance required for your short-bed truck to turn safely at slow speeds. Some other notable things about...
    view full answer...
  • Does B&W Companion BWRVK3710 Fit The 2022 Chevrolet Silverado 2500 Long Bed With OEM Pucks
    Yes, the B&W Companion OEM Fifth Wheel Hitch # BWRVK3710 you mention does fit your factory pucks on your 2022 Chevrolet Silverado 2500 long bed. To make unplugging and plugging your 5th wheel, I recommend the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole and 4-Pole Connector # HM54FR. This will allow you to add a 7 way in the bed of your truck for ease of access when plugging and unplugging your 5th wheel.
    view full answer...
  • Recommended Gooseneck Hitch For a 2024 Chevy Silverado 2500 To Install Andersen Ultimate 5TH Wheel
    I recommend installing the B&W Turnoverball Underbed Gooseneck Trailer Hitch # BWGNRK1020 on your 2024 Chevrolet Silverado 2500. I prefer this over others as you can simply flip the ball over for storage and maintain a flat bed. You will want to install the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness # HM54FR with the gooseneck hitch. This will fit into the factory cutout in the bed and allow you to plug in your wiring there rather than hanging over your tailgate.
    view full answer...
  • Hands Down Best 5th Wheel Hitch for 2022 Chevrolet Silverado 3500 With OEM Towing Prep Package
    While there are a lot of great options available from various manufacturers I absolutely prefer the B&W Companion OEM 5th Wheel Hitch w/ Slider for the Chevy/GMC with a towing prep package, # BWRVK3775. This is a fully Made In USA product with raw materials sourced from the US as well. It has a gross towing weight of 20,000 lbs. and a vertical load limit of 5,000 lbs. The Hitch height is adjustable from 17" - 19" with a full 12" of front to back travel providing cab clearance. This 20K...
    view full answer...
  • Where Do You Drill The Hole For The B&W Turnover Ball On a 2022 Chevrolet Silverado 2500HD?
    The hole for the B&W Turnoverball Underbed Gooseneck Trailer Hitch # BWGNRK1020 on your 2022 Chevrolet Silverado 2500HD will be either 45-5/16" for a long bed(8') or 37-1/8" for a short bed(6-1/2') to the center of the hole from the rear of the truck bed. It will be centered between your passenger side and driver side fenders. I have linked the installation instructions for this hitch below as well as a installation video showing us install the hitch on a 2020 Silverado 2500HD. I recommend...
    view full answer...
    Image 1 for
  • Best 5th Wheel Hitch for 2022 Chevrolet 2500 w/ OEM Prep Package on 6-3/4' bed
    Since you have the 6-3/4' bed you will need a hitch that slides. I recommend the B&W Companion OEM 5th Wheel Hitch w/ Slider for Chevy/GMC Towing Prep Package # BWRVK3775. This hitch is made in the USA and has a quick, simple installation. It drops into the 4 receiver pucks that are built into your factory underbed rails. The built-in slider provides the clearance required for your short-bed pickup to turn safely at slow speeds and rail-free design allows for full access to your truck...
    view full answer...
  • Does the B&W Turnover Ball GNRK1020 Fit The New 2024 Chevy Silverado 2500HD?
    Yes, I confirmed with B&W that you will be able to use their B&W Turnoverball Underbed Gooseneck Trailer Hitch # BWGNRK1020 on your 2024 Chevrolet Silverado 2500HD. I recommend installing the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness # HM54FR when you install the Turnover Ball. This will give you the same 4/7-way connector which fits in the cutout on the rear of your bed.
    view full answer...
  • 2022 Chevy Silverado 2500 Correct B&W Gooseneck Hitch Fit
    The correct B&W Gooseneck Hitch for your 2022 Chevy Silverado 2500 is part # BWGNRK1020 whether you have the short or long bed. If you don't already have a 7-Way socket in the bed of your truck then I also recommend installing the Hopkins # HM54FR to make it easier to connect the wiring from your gooseneck to the truck. Attached are some installation videos for you to check out.
    view full answer...
  • Do I Need a 5th Wheel Slider In My 2022 Chevrolet Silverado 2500 w/ OEM Prep Package and Short Bed
    We still recommend the use of a slider in all standard/short bed trucks. That being said, the new GM trucks like your 2022 Chevrolet 2500 do have a slightly longer bed than the typical standard bed. The best thing you can do is to measure to see if you have the proper clearance needed without a slider. You can do this by taking A = Distance from center of fifth wheel hitch jaw to truck cab and subtracting C = Width of trailer divided by 2 (to get half). So A - C= your clearance. You need...
    view full answer...

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Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Dustin K
Video by:
Dustin K
Employee Jonathan Y
Video by:
Jonathan Y
Employee Alexander C
Written by:
Alexander C
Employee Conner L
Test Fit:
Conner L
Employee David F
Test Fit:
David F
Employee Bradley B
Test Fit:
Bradley B

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