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Hopkins Endurance 7-Way Trailer Connector Socket - Vehicle End - Ergonomic Design

Hopkins Endurance 7-Way Trailer Connector Socket - Vehicle End - Ergonomic Design

Item # HM48480
Our Price: $15.93
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Trailer Wiring
Shipping Weight: 0.6 lbs
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This heavy-duty trailer connector socket has an outlet for a 7-way plug. A weatherproof, insulated lid covers the terminals. The cover is also easy to open and extra-durable. Great Prices for the best trailer wiring from Hopkins. Hopkins Endurance 7-Way Trailer Connector Socket - Vehicle End - Ergonomic Design part number HM48480 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (137)
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Hopkins Trailer Wiring - HM48480

  • Trailer Connectors
  • Vehicle End Connector
  • 7 Round - Blade
  • Plug Only
  • Hopkins

This heavy-duty trailer connector socket has an outlet for a 7-way plug. A weatherproof, insulated lid covers the terminals. The cover is also easy to open and extra-durable.


  • Reinforced, easy-grip lid
    • Opens 180 degrees for easier connections
    • Internal seals for ultimate weatherproofing
    • Rugged, oversize hinge
  • Mounting bracket, hardware and terminal grease packet included
  • Works with standard 7-way RV blade style trailer connectors
  • Limited 3-year warranty

A heavy-duty bracket holds the vehicle-side connector. The lid of the outer casing opens 180 degrees for direct connections. The lid features internal seals to protect the inner outlet's 7-way blade terminals from the elements.

48480 Endurance Connector - 7-Way Blade Connector Socket (Vehicle End)

Compare to Reese 85219

Installation Details HM48480 Installation instructions

California residents: click here

Video of Hopkins Endurance 7-Way Trailer Connector Socket - Vehicle End - Ergonomic Design

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

Video Transcript for Hopkins Wiring - Trailer Connectors - HM48480 Review

Today we're reviewing part number HM48480 from Hopkins. This is their Endurance 7-way trailer connector socket for the vehicle end. It's pretty simple and straightforward. Here's your 7-way connector with a sturdy dust cap. And as you can see, you have the 7-way trailer connector right there. And what you do is run your vehicle wires through the small end of this piece, bring them out here, connect them to the blades on the trailer connector, and then it snaps on, and you're all set.

So then all you have to do is mount this that way, and you're ready to go. Your hardware is included, and you also get two packages of Dielectric grease for your electrical connection. And there you have it for part number HM48480, the Hopkins Endurance 7-way trailer connector socket. .

Customer Satisfaction Score:

Customer Reviews

Hopkins Endurance 7-Way Trailer Connector Socket - Vehicle End - Ergonomic Design - HM48480

Average Customer Rating:  4.8 out of 5 stars   (135 Customer Reviews)

This heavy-duty trailer connector socket has an outlet for a 7-way plug. A weatherproof, insulated lid covers the terminals. The cover is also easy to open and extra-durable.


Well I wasn't able to use this as there was no good place to install on my car without it practically dragging. Not a product problem at all. I tried to return and customer service was fast and super helpful... unfortunately return shipping would eat up any refund. So.. I get to keep it. good quality and product. Very happy with it and wish I could use it. Will keep it for sometime in the future when of course I will need it.


I bought this socket for my 2006 Volvo Xc90 to wire in the 4-Pole harness I also purchased from etrailer. Already had a few 7 Blade to 4-Pole adapters from my previous vehicle, and wanted the option of adding a trailer brake wire for a small camper later on so that was the main reason for the purchase. It also went very well with the Hidden Hitch I had already installed, bracket mounted right up to the existing tabs on the hitch. Super quick and easy install, as all of my etrailer purchases have been. Looks great on the truck, and functions great with the 180 Degree cover.


I installed this receptacle in the side, top rail of my truck to supply power to my 5th wheel trailer. The connectors at the rear are very sturdy, I was able to tighten the connections very tight without fear of them stripping out. Looks like a factory installation!


Did not use this product…Installer of my Blue Ox tow package used another 7 pin connector..


Good quality with seal on cover. Wiring installation was a little tight with the housing. It did mount perfectly with my Draw-tite hitch.


I purchased this 7 blade connector to replace part 47435 (6 pole round to 7 blade (trailer)), which was allowing the whole cable assembly to droop close to the ground, and was fatiguing after four years of use. This new unit was easy to wire and install, however I wish to point out that the molded markings for the various wires (RT, LT, TM, GD, BR, etc.) are exactly backwards from the way the device is supposed to be wired. This was evident when I finished the installation and observed the turn signals were reversed, and nothing else worked (as a result of blown fuses). Once I corrected the wiring, everything works fine. Use the wiring diagram which comes with the instructions and not the molded pin markings on the device.

Kent D.


Thanks for the follow up. Thats impressive :- The two products are holding up fine. With respect to the Hopkins Endurance 7-Way Trailer Connector Socket - Vehicle End - Ergonomic Design, its working just fine, although the bracket is a little bent from being dragged on the ground when the back bumper on my KIA gets a little too close. Ive had to reinforce the mounting, because the fiberglass bumper isnt strong enough to take the hits. My problem, not yours. I will note, however, that the blades in the connector dont grip the slots in the trailer portion very well, so if I dont have the trailer part totally ed where the little latch in the top of the gate holds, the connecter easily falls out. As for the six pin to seven blade adaptor, everything is fine.


very easy to install. Nice heavy duty piece. using on a stacker trailer we have at the shop that uses a pig tail with female 7 way plugs on both ends. works well for us. great service and fast shipping! Thanks!

Charlie M.




Used your product to replace a defective product purchased from another vendor that failed on first use.this hopkins endurance was superior in every way. Thank you


I purchased this draw-tite trailer hitch from etrailer about one year ago. I installed it myself, which was very easy to do without issue. Four bolt installation. Pre-drilled holes into the frame from the factory.I also purchased all of the wiring associated with the Hitch that was a plug and play into the right and left tail lights of the Jeep. There was no cutting no soldering no taping of wires. It was a matter of removing the tail lights a total of 4 screws, removing the tail lights, unplug the tail light wire and plugging in the wire kit and then plugging the wires back into the tail lights. I have to say this whole process took me about one hour total. Including putting the trailer hitch on and do the wiring. Everything has and continues to work well after a year and looks factory. Thank you etrailer.


The receptacle has reasonable good terminals for hooking up wires. Since I installed it in Aug of 2018 and it is now May 2019, it is difficult to clearly remember, but I seem to recall it came with a diagram for wire connections. As with all the receptacles for plugging in the trailer cord there are two things that will fail before the receptacle itself; 1) the bracket will likely rust away, 2) the spring to keep the cover closed will rust away and fail to function after awhile. I coated the bracket with liquid rubber that is commonly used for tool handles, and tried to get oil in to the spring hinge. Also seal the area where the wire cable enters. Sparingly used wire conductive lube on the wire & terminals. I live in upstate New York where there is a lot of salt used on the roads in the winter. Hope to get 3 to 5 years out it. It's a good devise.


Very easy to install. Good quality, looks like it will hold up over time. I ran my 4 pin right next to it for a clean look.
And as always great customer service.


Still works 1 year later, even after I slammed it on the rocks while off-roading.


etrailer gave excellent service. Shipping was prompt. Email followup was excellent.

I needed a part to hook up to a Silverado 3500 with the wires to the bed already there (taped up at the front of the bed on the driver side) and didn't want to tap into the existing plug on the bumper.

The L Shaped bracket is easily detachable so that the plug can be screwed directly into the sheet metal of the truck bed once a hole is cut.

However 2 things....the unit comes with nuts and bolts so get ready for a trip to Home Depot to get some sheet metal screws of some sort for most installs in the bed. Second, the holes that the screws must go in are hex shaped which is great for the bolts that come with the unit but not for sheet metal screws so be sure and get screws with a small enough head to countersink into the holes or with a big enough base so as not to sink into the hex shaped holes.


Worked great. Needed a 7 pin round trailer connector for my 1936 Chevrolet pickup. This will work on most any vehicle.


Great product, shipped promptly. The video on made installation a breeze. Even comes with non-corroding grease for terminal connections.
I got stuck as an amateur wire-installer and had to call for some technical advice (didnt have a purple wire or orange wire as all wiring diagrams online showed....) the tech support was super knowledgeable and got me running in no time!


Easy to connect. Fits well & seems stu rdy.


Came with nice set of installation instructions and wiring diagrams. Also came with installation bracket and bolts for mounting, dielectric grease packets, and rear cover to help seal up connections. Well made product.


This is just what you need to fix a completely trashed factory receptacle, in our case, on a Toyota Tacoma. I had to flatten the mounting bracket because I couldn't remove the stock bracket (rusted bolt), but that was easy as long as you have a drill to open up the holes for the receptacle to attach to the bracket.


My factory connector cracked.
I installed
a Hopkins plug on our trailer several months before, so I purchased the connector. It is a great product and easy to install.


Great value. Toyota wanted $235 for the replacement which included an 18" wiring harness with a Weatherpack connector. I cut the Toyota harness at the failed socket and attached the wires to the new socket as shown in diagram.


Products were delivered with very short wait time.

Adapter cable HM47065 is a replacement of the original cable purchased for towing in 2012.

Socket HM48480 is a replacement of the socket that was on the motor home when purchased used in 2012.

They haven't been installed yet, but I don't expect any issues.



Controller is very nice and installed easily. All mounting hardware was as stated and went in with no hitches. Very informed salesman and great to deal with. I would recommend them or do business with them in the future. Also shipping was very quick.


Product delivered very quickly even here in Alaska. Had the same item installed on my truck and it had a broken cover plate so needed to replace it. Also found the original was not installed very well and let water into area where wires were terminated. Fixed that problem with the better weather sealing. Thanks for great service and a good product.




Gasketed cover. Comes with the mounting bracket. Nice latching cover at the rear to cover all wire terminations. Also includes plenty of dielectric grease. Terrific experience dealing with etrailers!

Show More Reviews

See what our Experts say about this Hopkins Trailer Wiring

  • Installing Hopkins HM48480 7-Way Trailer Connector on 2003 Chevy Suburban
    You have a good handle on the color codes. If you're looking at the back of the 7-way connector, where the wires attach to the terminals, things would attach as follows. I'll refer to the terminal locations as if they were the hours shown on a clock face. 1:00 Running Lamps- Attach Brown Wire 3:00 Left Turn and Brake- Attach Yellow Wire 5:00 Ground- Attach Black Wire 7:00 Brake Output Voltage- Attach Blue Wire 9:00 Right Turn and Brake- Attach Dark Green Wire 11:00 12-volt constant- Attach...
    view full answer...
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  • Service Electric Brake System Light on a 2008 Chevy Silverado 2500 with Factory Brake Controller
    It sounds like you have an integrated brake controller on the 2008 Chevy Silverado 2500. The "service trailer brake system" displays when there is a short with the integrated brake controller. I recommend to take a look at your trailer connector to make sure the pins are clean of rust or corrosion. If the 7-way pins are bent and you're not getting a proper connection then you could have a short. I recommend to have the truck to the dealership to be serviced.
    view full answer...
  • Dimensions of the Hopkins Endurance 7-Way Trailer Connector Socket # HM48480
    The Hopkins Endurance 7-Way Trailer Connector Socket, # HM48480, measures 2-3/4 inches wide and 3 inches tall. I have attached a picture to illustrate these measurements as well as the distance between the mounting holes.
    view full answer...
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  • 9-Pole Truck Connector to 7-Pin Trailer Connector Solution
    Is there a reason your truck has a 9-pole? Do you need all 9 functions active? Your life would be much easier if you cut off the 9-way and installed a 7-way in place of it like part # HM48480. This is a much more common type of connector that will allow you to work with your current trailer as well as with future trailers. I attached a diagram for the 7-way for you to check out as well.
    view full answer...
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  • Troubleshooting Brake Controller in Wet Conditions
    I can help you troubleshoot your brake controller issue. Sounds like water is getting into the 7-way connector between your connection. You will want to find a way to seal that off better, I have heard of people using electrical tape to wrap the connection to prevent water from getting in during wet weather. You may also consider replacing the connector with one like the Hopkins # HM48480, this connector has a foam seal that will help with weather seeping in. Another thing that may...
    view full answer...
  • How to Activate Trailer Running Lights with a 7-Way That is Ran to Aux Battery
    What you'd need is a 7-way socket like the part # HM48480 that you'd run to the battery you want to power your running lights. You'll need to connect this 7-way to the running lights and ground circuit so that when it is plugged in the running lights would come on. The running light circuit will be the pin in the 10:00 position of the 7-way as your looking at the front of it and the ground circuit is in the 7:00 pin.
    view full answer...
  • Electric Brake Terminal on 7-Way Connector is Showing Constant 12 Volts Under All Conditions
    On some vehicles, the key has to be on for voltage to go back to the trailer connector. On others, it does not. An electric brake controller will always send back some minimal voltage to the trailer connector. This is how it senses if there is a trailer connected. But it should not be showing 12 volts all of the time. If it is on the brake pin, 5 oclock position if looking at the face of the 7-Way, then that indicates that there is a short to the brake wire. If the 12 volt power is showing...
    view full answer...
  • 7-Way Replacement Plug For 1997 Ford F-350
    For a replacement plug for your 1997 F-350, you can use an option from Hopkins, which is the 7-way plug which also comes with the mounting bracket, so you don't need to purchase that separately: - Hopkins Endurance 7-Way Trailer Connector Socket - Vehicle End # HM48480 I have added a link below to a video review showing how to connect the wiring that I recommend checking out.
    view full answer...
  • Can Hopkins Endurance 7-way Connector Be Installed In A Hole In The Bumper Of 2001 Toyota 4Runner?
    You sure can! You will just need to drill a hole large enough for the Hopkins Endurance 7-way Connector # HM48480 to fit through, and then you would just need to drill 4 holes for the mounting hardware. The included mounting hardware may not be long enough, so if that is the case you will just need to source some from a local hardware store. I included a video of the # HM48480 for you to take a look at.
    view full answer...
  • What Size Hole Would Be Required to Mount the Hopkins HM48480 In a Bumper
    If you were to take the mounting bracket off the Hopkins # HM48480 the diameter of the rear plug housing is going to be roughly 2-1/2". I've also attached a photo that shows the dimensions between the mounting holes that you would need to secure the plug to your bumper so you can make sure that you have spots to attach the plug to.
    view full answer...
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  • How to Make Adapter to Go From Semi Truck Connector to 7-Way Blade Connector
    I wish we did, but we do not have anything for semi truck to RV flat style connector. You'd have to source a semi truck male connector and then wire it to a 7-way socket like part # HM48480 and wire it up like the attached diagram.
    view full answer...
    Image 1 for
  • Troubleshooting Brake Controller Install Where Output Circuit Pulses Circuit Tester
    The brake output circuit of any brake controller will periodically pulse the output circuit to see if a trailer is connected. What you are seeing is most likely that function. What happens when you connect a trailer with brakes to the tow vehicle? It sounds like you may have a controller that is working properly as-is. I attached a help article on troubleshooting brake controller installs to this page as well.
    view full answer...
  • Can 10 Gauge Wire be Used with Hopkins 7-Way Trailer Wiring Connectors
    Yes, you can use 10 gauge wire like the part # 10-1-1 (sold by the foot) to wire up the 7-way part # HM48480 or # HM48500. Typically people use 10 gauge wire for the 12 volt accessory, brake output, and ground circuit and then use 12 for the remaining circuits.
    view full answer...
  • Hopkins 6-Pole Round to 7-Way Blade Adapter Not Compatible with 1995 Jeep Grand Cherokee
    Most trailer connectors on vehicles use a standard size for the pins but there are a few out there that do not. That is likely what the issue is. It does not have anything to do with the function of the center pin. The best solution for you is to change the connector on your 1995 Jeep Grand Cherokee to a 7-Way because it is likely that all the adapters will have the same problem. Since your Jeep already has a 6-Way and the wiring is all there you just have to move the wires from the 6-Way...
    view full answer...
  • Troubleshooting Several Trailer Wiring Issues with Very Corroded 7-Way
    The picture of your 7-way is the biggest clue to the root of your problems. You have a ton of corrosion in there which can cause all sorts of problems from shorting circuits out like you mentioned (the smoking circuits) as well as causing intermittent connections like what your wife noticed when following you. You need to thoroughly clean the connector to rid it of all of the corrosion that you have or replace the connector with a new 7-way like # HM48480 which will give you the easiest...
    view full answer...
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  • Converting 4-Pole Trailer Connector to 7-Way
    If the vehicle has an existing 4-pole trailer connector, and you are wanting to convert it to a 7-way, using an adapter like part # 37185 is your best bet. The adapter would plug directly into the existing 4-pole, with 4 wires remaining. The blue wire would connect to the brake output wire from a brake controller. The black wire would connect to the vehicle battery via a 40 amp breaker like part # 9510, and would be used to maintain a trailer mounted battery, if needed. The white wire...
    view full answer...
  • Adapter to Convert 6-way Round to 7-Way Blade Trailer Connector Part # 47435
    If you are going to exclusively tow this trailer, you might be better off replacing your current 6-way with a 7-way connector like part # HM48480. If you would prefer to use an adapter, we offer the 6-Way to 7-Way Trailer Wiring Adapter, part # 47435.
    view full answer...
  • How to Clean a 7-Way Trailer Wiring Connector
    There are several items you might want to try using for removal of corrosion in your 7-way trailer connector, like part # HM48480. White Vinegar A wedge shaped, slip on pencil eraser or art gum eraser Pipe cleaners PB Blaster If the corrosion is light, apply white vinegar with a pipe cleaner followed by scrubbing with the eraser to do the trick. If the corrosion is a bit heavier spray the connector down with PB Blaster first let it sit for a while and repeat. Once the connector has soaked...
    view full answer...
  • Connecting Vehicle 7-Way Connector to Trailer with 4-Way
    It sounds like you are needing to connect your vehicle that has a 7-Way connector to a trailer that is equipped with a 4-Way flat connector. If this is correct then all you need is an adapter like the Pollak # PK12716. This will plug right into the 7-Way on the vehicle and provide a 4-Way flat on the other end to hook up with the trailer. You won't need to splice any wires together. If you are needing something different please just let me know and I will be happy to look into this further.
    view full answer...
  • Diagram to Use When Installing Hopkins 7-Way HM48480
    I attached a diagram that shows how a 7-way gets wired up by function. If you don't know the function of the wires of your truck you will have to use a circuit tester like part # PTW2993 to test each wire so that you can determine what it is and wire the 7-way according to the diagram.
    view full answer...
    Image 1 for
  • Replacement 7-Way for 2005 Beaver Patriot Thunder Motorhome Built on Roadmaster Chassis
    There is not a replacement 7-way wiring harness that is a custom fit for your 2005 Beaver Patriot Thunder that is built on a Roadmaster chassis; what you will need to do is replace it with a universal connector, the Pollak 7-Pole, RV-Style Trailer Connector Socket w/ Wiring Harness and Mounting Bracket # PK11898.
    view full answer...
  • Is Replacement Trailer Side 7-Way Connector # H20046 Male or Female
    The Hopkins 7-Way connector, part # H20046, is a male connector. The trailer side is the male end because it inserts into the vehicle side. This is somewhat misleading because usually a male connector has prongs and vehicle side trailer connectors have the prongs even though it is a female connector. I've never seen a vehicle with a male trailer connector. Likewise with a female on a trailer. Take a look at the pictures I've attached and see if they match the type of setup you have....
    view full answer...
    Image 1 for Image 2 for
  • Can International 4400 Tow Trailer with Electric Over Hydraulic Brakes
    Basically you would need to install a brake controller with electric over hydraulic compatibility and a 7-way wired properly and you would be able to accomplish what you are trying to do. The P3 part # 90195 would be a great option that is compatible with that brake style and is one of our best selling controllers because of how well it works. For a vehicle side 7-way we have the part # HM48480 that would need to get wired to your vehicle according to the diagram I attached
    view full answer...
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  • Installing Hopkins Endurance 7-Way Trailer Connector, # HM48480 on a 2000 Chevy Astro
    Wiring color/function on vehicle wiring differs from manufacturer to manufacturer and even among model years of the same vehicle, so the best way to determine the functions of the vehicle wiring is to test it with a circuit tester like # PTW2993. Before that, there may have been a short on the trailer wiring that has caused the running lights on your 2000 Chevy Astro to stop working. I recommend taking a look at the fuses to determine if the one for running lights has been blown and that...
    view full answer...

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