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  4. Trailer Hitch Wiring
  5. 7 Round - Blade
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Hopkins Endurance Quick-Install 7-Way Trailer Connector

Hopkins Endurance Quick-Install 7-Way Trailer Connector

Item # HM42190
Our Price: $31.28
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Custom Fit Vehicle Wiring

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This kit lets you add a 7-way, RV-style trailer connector to your vehicle with a factory tow package. Included harness plugs into existing wiring, and 7-way connector plugs into harness - no cutting or splicing required. 1-833-496-1390 to order Hopkins custom fit vehicle wiring part number HM42190 or order online at Free expert support on all Hopkins products. Great prices and Fastest Shipping for Hopkins Endurance Quick-Install 7-Way Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (135)
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  • Videos (2)
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Hopkins Custom Fit Vehicle Wiring - HM42190

  • Custom Fit
  • Trailer Hitch Wiring
  • 7 Round - Blade
  • No Converter
  • Hopkins

This kit lets you add a 7-way, RV-style trailer connector to your vehicle with a factory tow package. Included harness plugs into existing wiring, and 7-way connector plugs into harness - no cutting or splicing required.


  • 7-Blade, RV-style trailer connector for your vehicle with a factory tow package
  • Plug-In Simple installation - no cutting or splicing required
    • Wiring harness plugs into your factory wiring
    • 7-Way connector plugs into harness
  • Lid opens 180 degrees for easy connections
    • Keeps out dirt and moisture
  • Enhanced weatherproofing with internal seals and corrosion-resistant terminals
  • Extremely durable ABS plastic construction and oversize lid hinge
  • Mounting screws and dielectric grease packet included
  • 3-Year limited warranty

42190 Hopkins Endurance Quick-Install 7-Way Trailer Connector - Vehicle End

Installation Details HM42190 Installation instructions

This Product Fits The Following Vehicles

California residents: click here

Video of Hopkins Endurance Quick-Install 7-Way Trailer Connector

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Hopkins Custom Fit Vehicle Wiring - Trailer Hitch Wiring - HM42190 Review

Today we're going to review part number HM42190. This is the Hopkins Endurance quick install 7-way trailer connector. This kit will allow you to add a 7-way RV style trailer connector to your vehicle that has a factory tow package. This part number is a custom fit part number. It is designed to fit the Dodge, Chrysler, Jeep and some Mercedes Benz vehicles starting in 2000 that have the factory to 7-way connector. What I would recommend is go to our website and on our fit guide you can put in your year and model vehicle and it will show you the exact years and models that this will fit on. This is a 7-way blade RV style trailer connector for your vehicle with the factory tow package.

It is a plug-in simple installation, there is no cutting or splicing of wires. The wiring harness plugs in to your factory wire port at the rear of the vehicle and then the 7-way will plug right in to here. Oops, turn it around, just like that. That will be plugged in to your factory wiring harness. The lid on this will open 180 degrees you can see for easy connection.

This lid also helps keep out any dirt and moisture from getting to the terminals. It has enhanced weather proofing with internal seals right up in here and corrosion resistant terminals. Extremely durable ABS plastic construction, it has a nice oversize lid hinge. It comes with the mounting screws to mount this to a bracket and a package of dialectic grease which we recommend to put on the terminals when you do your connections, also on this right here. That should do it for the review of part number HM42190, the Hopkins Endurance quick install 7-way trailer connector. .

Customer Satisfaction Score:

Customer Reviews

Hopkins Endurance Quick-Install 7-Way Trailer Connector - HM42190

Average Customer Rating:  4.7 out of 5 stars   (135 Customer Reviews)

This kit lets you add a 7-way, RV-style trailer connector to your vehicle with a factory tow package. Included harness plugs into existing wiring, and 7-way connector plugs into harness - no cutting or splicing required.

Chevrolet Silverado 2500

I purchased this to restore the 7-way recreational trailer connector on my Dodge 2500. The previous owner had cut off the factory connector box and connector. This connector plugged in directly to the truck's tow-package electrical cable connection, providing a quick and simple fix. Works great!


A simple part… however, I have ordered hitches, wiring harnesses and other odds and ends. I buy from etrailer because they always have the right part, great installation instructions and videos. The quality is always spot on and the service is fast and helpful.
Why go elsewhere and hope things are right when buying from etrailer you know it’s going to be.


Great product that made for an easy ins tallation

2012 Mercedes-Benz M-Class

Good product and it does fit the replacement for a 2012 ml550


This worked as advertised, it was very simple to install, and it fixed it so my trailers lights all worked again! Very happy with it so far. :)


Fit perfectly

2006 Dodge Ram Pickup

I received a Hopkins 50002 Smart Hitch Backup Camera System for Fathers Day but my 2006 dodge diesel had the old square style 7-way connector. I did not want to splice into my wires unless I had no choice. I had recently bought some awesome new tail lights for my boat trailer from etrailer and I thought maybe I could find something there that would make this hook up possible without splicing into my wires. I'm certainly glad I did because they had the new style 7-way connector, just what I needed. I ordered it, installed it along with the camera system and life was great. No splicing wires! Thank you etrailer for making this Fathers Day gift a breeze to install.

Perfect! Could be more happier with this product
Todd - 07/02/2019

2006 Dodge Ram Pickup

Took a little longer then I thought it would but got it in and I’m very happy

Still works great
Tristan - 04/17/2022

2006 Dodge Sprinter

Quality of construction appears good. There were no fasteners in the package. Main concern is that the pigtail adapter, necessary to adapt the OEM-specific harness to the "generic" outlet, was a little bigger/longer than I'd like. However, this is easy to live with considering the OEM part cost 3X as much! Haven't had the time to see if the wiring pattern for the trailer lighting is correct.

It works fine but you have to watch out that you dont snag the pigtail adapter wire as you put the hitch into the receiver or hook up the safety chains.
Ian S - 12/27/2017

2005 Dodge Durango

Super customer service.


Everything went as planned with good co mmunication

2005 Land Rover Discovery II

I received the Quick-Install 7-Way Trailer Connector pretty quick. I had ordered one through another source, but had to return it because it was the wrong one. Then I searched on google and found After a little bit of searching on their site, I found this connector. They had great pictures and they were accurately-sized so I could see that the attachment holes to the frame of my 2005 Fleetwood Discovery RV would line up exactly. It matched up perfectly and installed in just a few minutes. The package was missing one nut, but that was no big deal as I quickly found a replacement.

Great. Better than the original.
Billy L - 08/30/2016


Appears to be high quality components and materials. Included almost everything necessary, including grease to seal the connections. Liked the hex recess for the screw heads molded into the receptacle body. Would have been nice to include Nyloc nuts - Was concerned about tightening the screws enough to make the lock washers work while not damaging the plastic. Used Locktite instead.

Still working well :Thanks!
Mark W - 08/27/2014


Nice looking product. Arrived 5 days ea rly!

2001 Dodge Ram Pickup

Connector was as advertised it fit the existing wiring harness without any modifications made the replacement very easy I would reccomend this product to anyone.

It is working out great would purchase again
Pete M - 03/07/2018

2007 Dodge Ram Pickup

As advertized. Plugged right in. No splicing or taping required. Had to drill a cpl new mounting holes. Face plate was a little smaller but all the important stuff fit correctly.
Much better than searching thru auto parts stores.

After a year still working as it was from install. No problems with connectors or housing. Still 5 stars.
jeff M - 10/09/2017


I found it odd that local parts stores didn't carry this item, as it is a standard Dodge truck plug. So I hit the Internet and found it here at a good price. It was delivered much faster than I anticipated.

It works perfectly
Rich S - 04/22/2015

2003 Dodge Ram Pickup

The trailer wiring harness was easy to install and after one year, it is still working perfectly.

Brian S., Hopkins appreciates your business and is grateful you purchased our Trailer Connector. 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 - 07/05/2017


Was exactly what I needed

Working well after a year.
Martin - 02/02/2022

2013 Mercedes GL450

This product its awesome !!!

a silly mistake on my end I broke the OEM Connector on my 13' Mercedes GL450, called the dealer and was told the connector doesn't sell individual and I had to order the Towing Kit (Over $900 !!!) decided to take my chances on aftermarket products.

Began by ordering part# PK11893-11933 from only to discover that the mentioned part worked fine but it didn't fit properly on the OEM Bracket (You had to drill new holes) when taking the plug out to disconnect it I broke the pin so sadly I couldn't sent it back for a refund.

Still, I was determinate to find a perfect fit, so I ordered this part from and this time I got it right. The part fit perfectly and you can even use the stock screws, also the part its rugged and you can tell its a great quality product. Very happy with my purchase. Thanks

1999 Dodge Ram Pickup

I purchased this as a replacement for the damaged one on my 1999 Dodge Ram 1500. While this connector costs more than a generic one, being plug and play more than makes up for the added cost by eliminating the need to splice into factory wiring. The connector plugged directly into the factory harness and was a perfect fit in the original location.


Perfect fit! Thank you for your help!

2001 Dodge Ram Pickup

My 2001 Dodge Ram had the wrong plug installed and the connecting plugs from the lights from the factory and the wrong plug didn't match. Went to, searched for my truck, and this plug came up. Ordered it. Received it. Installed it with no issues. The connecting plugs went together easily. Tested it with the trailer and all lights work!!! Thanks etrailer!


Great delivery time and good value prod uct.

Show More Reviews

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

  • All Trailer Lights Work Except for Brake Lights Towed by a 2004 Jeep Grand Cherokee
    Trailers in the US have combined brake lights and turn signals meaning the brake light signals and turn signals are sent on the same wire, one on each side. Since the turn signals are working that indicates to me that you potentially have a blown stop light of CHMSL fuse (CHMSL stands for center high mount stop lamp). It could also be a fuse or relay associated with the tow package wiring. You will need to use the vehicle owners manual to find the fuse and/or relay locations for the stop...
    view full answer...
  • All Lights On Trailer Work Except Brake Lights Even with Weak Ground on 2006 Dodge Sprinter RV
    There may have been a slight weak ground that was allowing some of the lower power draw functions to still work. Trailers can sometimes seem possessed when there is a ground issue. So hopefully you have fixed that issue. The grounds on both the trailer side and the vehicle side, as well as the grounds for all of the trailer lights will need to be attached to clean and corrosion free bare metal surfaces. A weak ground issue would show up as soon as there is higher power draw on the system....
    view full answer...
  • Trailer Wiring Harnesses for 2004 Dodge Dakota
    Thank you for your recent order. The part you purchased, Hopkins Endurance Quick-Install 7-Way Trailer Connector # HM42190, is intended as a direct plug-in replacement for a factory-installed 7-way trailer connector. This plugs in directly with no cutting or splicing required to an OEM harness on vehicles equipped with the factory tow package and mounts without a bracket using included hardware. If your Dakota does not have the connector to mate with the plug on this harness it may be...
    view full answer...
  • Replacement 7-Way Recommendation for a 2007 Chrysler Pacifica
    If your 2007 Chrysler Pacifica 4.0 Touring came with a factory 7-way yes, the Hopkins 7-Way part # HM42190 that you referenced would be the correct harness for your vehicle.
    view full answer...
  • 7-Way Trailer Connector for 2001 Dodge Ram 1500
    The Hopkins Custom Fit Vehicle Wiring Harness, # HM42190, will indeed fit your 2001 Dodge Ram 1500. This wiring harness plugs directly into existing wiring and 7-way connector plugs into harness. Installation does not require any cutting or splicing.
    view full answer...
  • Replacement 7-Way Recommendation for a 2000 Dodge Ram 3500
    Yes, the Hopkins Endurance Quick-Install 7-Way Trailer Connector # HM42190 that you referenced will work as a 7-way replacement for your 2000 Dodge Ram 3500. It sounds like the dealer gave you a Mopar replacement part number that would also work. The # HM42190 is an aftermarket solution that will work just as well and will most likely cost less. I attached a review video for you to check out as well.
    view full answer...
  • Recommended Wiring Harness to Add 7 Way to 2004 Jeep Grand Cherokee
    It sounds like you have the square Chrysler connector behind your bumper. If that is the case you will want to use the Hopkins Endurance Quick-Install 7-Way Trailer Connector # HM42190. This kit lets you add a 7-way, RV-style trailer connector to your Jeep Grand Cherokee with a factory tow package. This harness plugs into your existing wiring, and the 7-way connector plugs into harness. No cutting or splicing is necessary. Check out the demonstration video of this part that I have included.
    view full answer...
  • Can Wire from Brake Lights on 2005 Dodge Ram Pickup be Connected to Factory 7-Way
    If the brake light pin for the 7 and 4-Way connectors on your 2005 Dodge Ram Pickup is not working, you can certainly pull power from the brake lights themselves and connect a wire to the existing 7-Way. This should resolve the issue you are having, which is actually a fairly common one for the computer systems on your model year Ram.
    view full answer...
  • Replacement 7-Way Trailer Wiring Connector for 2004 Dodge Dakota
    To replace a 7-way on your 2004 Dodge Dakota all you'd need is the part # HM42190 which will plug right into the square connector on your truck and would not require you to do any splicing.
    view full answer...
  • Replacement 7-Way Recommendation for 2004 Dodge Ram 2500
    Easiest solution I can provide for you is to install the Hopkins 7-way part # HM42190 on your 2004 Dodge Ram. This 7-way uses the same square style connector as you have and will basically only require you to plug it in and you'd be good
    view full answer...
    Image 1 for
  • Replacement 7-Way and Harness Recommendation for a 2001 Dodge Ram 2500
    The easiest solution I can provide is going to be to replace the 7-way and wiring on your truck with the part # HM42190. I wish we had the harness of this by itself as it sounds like that is all you really need. But with this part number you will get a brand new 7-way that you could either use now or keep as a spare in case you ever need to replace yours.
    view full answer...
  • Replacement 7-Way Vehicle Socket for 2006 Dodge Ram 2500
    The Hopkins Endurance Quick-Install 7-Way Trailer Connector # HM42190 connects to the vehicle's wiring (which has a rectangular OEM connector) to provide lighting and 12V power and brake signals for the trailer.
    view full answer...
    Image 1 for
  • Trailer Brakes Locking Up When Towed By 2006 Dodge Ram Truck
    Since you towed the trailer with your Ford and were not having any issues, and since you had problems with both the brakes locking up and the lights, we know the problem is with your 2006 Dodge Ram. The issue is almost certainly the harness being the problem, as it is likely corroded or the wiring right behind the plug is damaged. You can check the pins on the connector and if they are corroded you can try and clean them, but will very likely need a new 7-way. Assuming you have the factory...
    view full answer...
  • 7-Way Trailer Connector that Install in the Factory Location on a 2002 Dodge Ram 1500
    The Hopkins Endurance Quick-Install 7-Way Trailer Connector part # HM42190 is a direct fit for the factory rear bumper trailer connector cutout on your 2002 Dodge Ram 1500. The wiring harness included with the trailer connector may or may not be needed depending on how your aftermarket wiring harness is installed. I have attached a review video of the above trailer connector for you as well.
    view full answer...
  • What Does 7-Way Install Harness Look Like on 2005 Dodge Dakota
    Easiest way to determine if your 2005 Dodge Dakota has the wiring needed to install a 7-way like the part # HM42190 would be to look behind the rear bumper for the square connector that this plugs into. I attached a picture of what the connector looks like.
    view full answer...
    Image 1 for
  • Replacement 7-Way Trailer Wiring Harness for 2003 Dodge Ram that Uses Rectangular Connector
    Sounds like you are looking for a replacement 7-way trailer wiring connector for your 2003 Dodge Ram that uses their square/rectangular connector which we offer with the Hopkins 7-Way part # HM42190.
    view full answer...
  • Installing 7-Way Trailer Connector in Bed of 2006 Dodge Ram
    Hopkins offers a T-Connector type set up, part # HM42137 that would plug inline with the existing 7-way on your bumper and provide a 7-way in your truck bed. The wiring harness is 8 feet long, but any existing slack can be taken up and bundled up under the vehicle with zip ties. Using the T-Type connector will allow a 7-way to remain at the rear bumper while adding one to the truck bed, which you would not have if you simply relocated the existing 7-way to the truck bed. The HM42190 you...
    view full answer...
  • 7-way to 6-way Adapter Recommendation for a 2013 Dodge Ram 3500
    Sounds like you need an adapter to go from the 7-way on your 2013 Dodge Ram 3500 to a 6-way. For that you would want a Hopkins Endurance Multi-Tow Trailer Connector Adapter # HM47570.
    view full answer...
  • Replacement 7-Way For 2002 Dodge Ram 1500
    If your 2002 Dodge Ram 1500 has the harness with the round connector like the one in the attached photo, you may only need to replace the 7-way connector that is mounted on the bumper of your truck. I would recommend the Hopkins Endurance Quick-Install 7-Way Trailer Connector, part # HM40940. This would replace just the 7-way mounted on your bumper, and comes with the mounting screws. If you are wishing to replace the entire harness and the 7-way connector, the Hopkins Endurance Quick-Install...
    view full answer...
    Image 1 for
  • How to Install Hopkins Smart Hitch Backup Camera # HM50002 on a Dodge Ram with Square Connector
    What you will need to do is remove the factory 7-way and in it's place install the Hopkins Endurance Quick-Install 7-Way # HM42190. This 7-way has a square connector that will plug into your vehicle's trailer wiring and then on the other end of the harness there is a round connector that the # HM50002 would be able to use for installation.
    view full answer...
  • 7-Way Trailer Wiring Recommendation for 2002 Dodge Ram 1500
    We have just what you need. For a replacement 7-way that is designed to fit the factory wiring of your 2002 Dodge Ram 1500 the Hopkins kit part # HM42190 would be an excellent option.
    view full answer...
  • Type of Vehicle Connector Required to Install Hopkins Smart Hitch Backup Camera HM50002
    The Hopkins Smart Hitch Backup Camera and Hitch Aligner System # HM50002 plugs in to any vehicle that has a round U.S. Car type connector plugged in the rear side of its 7-way. An example of such a part is the Hopkins Endurance Quick-Install 7-Way Trailer Connector # HM42190. At the rear of this vehicle socket is a round U.S. Car connector that can be removed, and then plugged back together with the camera's own mating connector inserted in between. Please refer to the linked photo that...
    view full answer...
    Image 1 for
  • What is the Field of View for the Hopkins Smart Hitch Backup Camera System # HM50002
    The Hopkins Smart Hitch Backup Camera and Hitch Aligner System # HM50002 that you referenced in your question is a great system that has received some great reviews from customers. It can be used both for coupling a trailer and for everyday use like what you are wanting to use it for. I talked to my contact at Hopkins and asked if they had any specifications on the field of view for the camera and he said that they do not have any specs on that. I will say that you can adjust the camera...
    view full answer...
    Image 1 for Image 2 for
  • 7-Way Wiring Recommendation for Fifth Wheel 7-Way in the Bed of 2001 Dodge Ram 2500
    Looks like somebody used quick splices to wire in the 7-way on your 2001 Dodge Ram and then when they removed the 7-way they just cut the wires leading to them. Thank you for the picture though as that helps me understand you setup very easily. Since it sounds like you are trying to install a second 7-way in the truck bed of your truck the easiest solution would be the part # HM42137 that would install inline with the factory 7-way wiring harness.
    view full answer...

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