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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. 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
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Our Price: $106.84
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. 1-636-306-4830 to order Hopkins custom fit vehicle wiring part number HM54FR or order online at etrailer.com. Free expert support on all Hopkins products. Guaranteed Lowest Price 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 (137)
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  • Why etrailer?

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 Reviews

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

Average Customer Rating:  4.9 out of 5 stars   (137 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:
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:
2020 GMC Sierra 2500

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


Comments
Working as it should
Leroy - 08/12/2022


by:

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




by:
2022 Chevrolet Silverado 2500

Worked as described. Install wasn’t hard. Getting the OEM plugs apart was the hardest part.
Package was missing the grease and ties. Quick trip to the local auto parts store fixed that.




by:

This part was exactly what I needed from their website, the price was great and also the shipping was quick and I was notified of the entire shipping history.I have bought products from etrailer before and always had a great experience.




by:
Chevrolet Silverado

Fast delivery. I have a 2020 Chevy Silverado 3500 HD. It took me about half an hour to install including zip tying the extra wires up under the frame. Plugged in the 5th wheel and everything worked great. Great product highly recommend.




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:

It was easy to install. The quality of the product is rugged and I think it will stand up to the environment




by:
2020 Chevrolet Silverado 2500

Easily installed in around 20 minutes or so hardest part was deciding on routing of the harness. The best part of this harness assembly is the in bed connection looks factory.




by:

The part went in quick and easy as it was portrayed. I plan to use Etrailer again soon.




by:

Harness worked perfectly in factory cut out in bed from factory. Every thing was plug n play! Awesome products as always from etrailer !! Got free shipping! Arrived really fast as always !!




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:

Quickest and easiest plug-in-play I’ve ever done recommend this to anyone thanks again




by:

Very good quality easy installation




by:

Fifthwheel plug and harness arrived a day early. It took about 1/2 an hour to install and looks like a factory install. Very impressed with sales, shipping and quality of etrailer.




by:

Perfect fit and match. OEM connector exactly what I was looking for.




by:
2022 Chevrolet Silverado 3500

This plug is very nice. There are no instructions, but the video is all you need .




by:

Purchase was a breeze. Delivery was quick. The product came with more items than what I anticipated or an extra 7 pin universal plug and a mounting bracket. Not sure I will ever use the extra parts but it is always better to have more parts than you need than it is to be missing crucial items.




by:

Watched their video. No issues for me.




by:
2022 Chevrolet Silverado 2500

Great packaging, great product, great price. Arrived ahead of time.




by:

plug and play simple install and great support




by:
2021 Chevrolet Silverado 2500

Good product, no complaints




by:
Chevrolet

The park fit exactly as description said it would unfortunately I found when installing it that my truck already had a harness that would come up into the box for the trailer outlet to be used with gooseneck and fifth wheel trailers I later learned that all three-quarter tons in the 2020 year Chevy and GMC models come with that harness so I didn’t need to buy this $150 harness even though it fit and works great I could’ve done it with a 30 Dollar plug instead




by:
2022 Chevrolet Silverado 3500

installed in about 30 minutes, fit and worked perfectly, thanks




by:

Exactly what I needed to have wiring in the bed for my fifth wheel. Fit into the factory hole.


Comments
Works perfect
Mick - 05/14/2021

25
137
Show More Reviews

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



  • 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...
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  • 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.
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  • 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.
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  • 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.
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    Image 1 for
  • 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.
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  • 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.
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  • 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.
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  • 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.
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  • 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.
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  • 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. The Upgraded Heavy Duty ModuLite Circuit Protected Vehicle Wiring Harness with 4 Pole Trailer Connector # 119190 you reference, is meant to added to a vehicle that doesn't have a 4 way trailer connector already, and since you mention you have a 7 way, you should have a 4 pole already. IIf you want to just add a 4 pole, I recommend using the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole...
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  • Hole Location For B&W Turnover Ball Gooseneck Hitch On a 2020 Chevrolet Silverado 2500
    The hole for the B&W Turnoverball Underbed Gooseneck Trailer Hitch # BWGNRK1020 will be 45-5/16" to the hole center of the 4" hole from the rear of the truck bed, centered between the fenders on your 2020 Chevrolet Silverado 2500HD with an 8' bed. I have included a picture of this location that also shows the short bed measurement of 37-1/8" to the center of the hole. Don't forget the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness # HM54FR for adding a trailer wiring...
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    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...
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  • 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...
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  • 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...
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  • 5th Wheel Hitch Recommendation For A 2021 Chevrolet Silverado 2500 With A Short Box
    For your 2021 Chevrolet Silverado 2500 short bed, I recommend the Demco Hijacker Autoslide 5th Wheel Trailer Hitch w/ Slider # DM8550022. This is a below the rail kit that has a rotating head that allows for 90 degrees with your trailer, as well as providing 14" of additional clearance. For wiring I recommend the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole and 4-Pole Connector # HM54FR. This will plug in line with your factory harness while giving you ease...
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  • 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...
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  • B&W Gooseneck Trailer Hitch for a 2022 Chevrolet Silverado without a Prep Package
    Yes, the B&W Turnoverball Underbed Gooseneck Trailer Hitch # BWGNRK1020 is confirmed to fit your 2022 Chevrolet Silverado 2500 without prep package. This will fit the 8' bed or 6-3/4' bed so you are good to go. If you want to add wiring in the bed of your truck to make hooking up your gooseneck trailers wiring easier you can get the Hopkins Endurance Gooseneck 90-Degree Wiring Harness # HM54FR. This will provide you with a 7-way connector in the bed of your truck while retaining use of...
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  • Best Gooseneck Trailer Hitch for a 2022 Chevrolet Silverado 2500 with no Prep Package
    The Gooseneck hitch that I recommend for your 2022 Chevrolet Silverado 2500 with no prep package is the B&W Turnoverball Underbed Gooseneck Trailer Hitch # BWGNRK1020. This hitch is made in the USA and will fit your Silverado 2500 whether you have a 6-3/4' bed or 8' bed with no prep package. To make hooking up your gooseneck trailers wiring easier you can add the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness # HM54FR which will allow you to have a 7-way connector in the...
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  • Compatibility Of B&W Companion With 2022 Chevrolet Silverado 2500 With Factory Pucks
    Yes, the B&W Companion # BWRVK3775 will fit your 2022 Chevrolet Silverado 2500 short bed with OEM pucks. This is a sliding hitch that is capable of towing up to 20,000lbs and provide up to 12" of travel front to back to give you the turning clearance needed for your standard bed. I also recommend adding a 7 way into the bed of your truck for ease of hooking up and disconnecting. If you're interested, you can use # HM54FR to do this, and will plug into your existing 7 way.
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  • 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.
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  • 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.
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  • 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...
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  • 5th Wheel Rails for a 2022 Chevrolet 2500 For a 5th Wheel Hitch with Industry Standard Attachments
    You can use the Curt Custom Fifth Wheel Installation Kit # C16429-204 in your 2022 Chevrolet Silverado 2500. The Curt Custom Fifth Wheel Installation Kit # C16429-204 is confirmed to fit your truck and will provide you with the industry standard rails that you will need to use your Curt sliding hitch. To make hooking up your 5th wheels wiring easier, you can pick up the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness # HM54FR. This wiring harness will allow you to move a...
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  • Under Bed Rail Kit for Demco DM8550022 Auto Slide 5th Wheel Hitch on 2020 Chevy Silverado 2500
    We'd be glad to help you with that. Demco does make an under-bed rail kit that's compatible with their # DM8550022 Hijacker Autoslide hitch that will work with your 2021 Chevy Silverado 2500. You'll want to use the # DR37FR under bed rail kit. I've linked to the installation instructions for you. The Hijacker Autoslide is a great choice, and will be very convenient as you won't need to get out of the truck to manually actuate the slider. If you'd like an in-bed 7-way trailer connector...
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Info for this part was:

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