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7-Way RV to 4-Way Flat Trailer Connector Adapter

7-Way RV to 4-Way Flat Trailer Connector Adapter

Item # HM47365
Our Price: $21.78
You Save: 26%
Trailer Wiring
Shipping Weight: 0.38 lbs
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Great Prices for the best trailer wiring from Hopkins. 7-Way RV to 4-Way Flat Trailer Connector Adapter part number HM47365 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (112)
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Hopkins Trailer Wiring - HM47365

  • Wiring Adapters
  • Single-Function Adapter
  • 4 Flat
  • Plug and Lead
  • 7 Round - Blade
  • Hopkins

  • Adapts a 7-way RV style connector on your vehicle to work with a trailer that has a 4-way flat connector
  • Wire lead is flexible allowing for more installation options
  • Dust cover for 4-way included

47365 7-Way RV to 4-Way Flat Trailer Connector Adapter

California residents: click here

Video of 7-Way RV to 4-Way Flat Trailer Connector Adapter

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

Video Transcript for Hopkins 7-Way RV to 4-Way Flat Trailer Connector Adapter Review

Hey guys, Randy here at Oftentimes we get questions about how can I get my seven pole in the back of my vehicle to work with my four-pole trailer Now here at etrailer, we have tons of different adapters available. This is just one we're going to look at today. Basically this is going to give us our connection point. So we can plug this right into the back of our truck, and just like any other seven-pole connector, you can see it's going to have that locking tab so our cover's going to come down. It's going to hold it in place.

I also like that we've got corrosion-resistant contacts in here rather than just being brass. We all know brass corrodes pretty readily. With that coating on there, we're not really going to have to worry about that as much. So we'll place that in.Be sure that cover comes down behind it and there you can see it's going to be a normal, working four-pole for it. So this is going to give us our ground wire.

It's going to give us our running lights. Going to give us our left turn and brake signal and our right turn and brake signal. This is going to be pretty ideal for trailers. Maybe you've got a cargo carrier you want to haul behind that's got lights on it or a lot of guys use lighted hitch covers. They want to have their hitch cover.

It's got a light in it and it needs power. Generally that's going to come from a four-pole.And something I like about this one, first of all, we've got pretty good length here. Oftentimes these are going to be solid so we'll be plugging our trailer directly into the back. I like this little bit of flexibility in it so we're not pulling directly down inaudible 00:01:33 if our trailer's not .. The trailer plug isn't directly in line with the back of our truck, we're not going to be pulling down on our truck's plug.

Overall really easy and handy to use.It's going to be a very standard trailer-type connector here. It does inaudible 00:01:53 a dust cover to come over. It's going to keep that protected from the elements. One thing I want you to keep in mind while using any kind of adapter or even plugging your trailer into the back of the vehicle, it's a really good idea to use dielectric grease. Just prevents moisture from getting in there, causing corrosion, causing dirt to get stuck in there, giving us issues down the road. So this can save you a lot of headache.As far as connecting and disconnecting, you can see we've got the two large tabs here. It's going to give us a good grip, allow us to pull it out. All in all, I think it's a really good trailer connector. In my particular vehicle, I've got a Trailblazer, and the seven-pole is tucked way up underneath the bumper. I leave this . I have this exact one and I leave it attached to my Trailblazer and that gives me a four-pole that just kind of hangs down. If you didn't want to leave it attached, it's easy to remove it. And the compact size, it's going to fit in just about any storage compartment you have, whether that's under the seat, a mat pocket in the glove box, just handy to have there on hand so when you do need to pull a four-pole trailer, we can convert that seven-pole over and we're going to be ready to go.Now all in all, from my experience, this is an excellent adapter and our customers also echo the same thing. It has lots of good, positive reviews. She's just going to be a really easy, simple way to get a working four-pole in the back of your vehicle. It's not going to require any modification to your vehicle's wiring and it's going to be safer, in the sense that, if we pull up to a four-pole trailer that we're borrowing and we've got a seven-pole on the back of our truck, let's say, if it's just a short distance, a lot of people will take that risk and not run lights on their trailer. It's just not safe. It's not safe to head down the road and not indicate to people which direction you're going to be turning or if you're stopping. So all in all, I think it's going to be a good, long-lasting product. It feels nice and solid. I think you'd be happy with it.

Customer Satisfaction Score:

Customer Reviews

7-Way RV to 4-Way Flat Trailer Connector Adapter - HM47365

Average Customer Rating:  4.9 out of 5 stars   (112 Customer Reviews)


Works fine. Reasonable price. I'm happy that etrailer is around.


High quality with nonoxiding metal parts. The extended length 4 pin connector makes hook ups a dream.


Outstanding product. Using it today.


As always, the merchandise that I have purchased from etrailer has been absolutely perfect for my needs. It is the first place that I look for parts for my trailers and trailer hookups.



Works great. I use the connector regularly on my truck to haul my boat trailer.


It worked perfectly and I was kind of leery about ordering it and it not being the correct connector. It's exactly like the picture. And it was cheaper than the stores here in Kansas!!

Connie C.


It works perfectly!! Still......


I purchased a different truck with a different wiring set up. I was pleased to find out all I needed was an adapter rather than changing the whole wiring set up. I found it quickly on this site and shipping was fast. Seems to be good quality.

Kirk M.


its good so far, although I havent really used it that much.


Exactly what I needed for my boat trailer. Works as expected, high quality and a great price. Fast shipping from Overall terrific experience.

Dave B.


Quality product. After a year of heavy use still works like brand new.


I am very pleased with my adapter.
me to connect to all of my trailers without having to add a plug to my truck or have to modify my factory wiring.
Just plug it in to my 7 pin connector and go.
E-Trailer folks are great people to deal with.


I ordered the wrong plug for my hitch, and this filled the bill, to convert from the 7-pin to the 4-pin for my boat trailer. This was a lot easier than returning the original plug, and e-trailer got the new adapter to me very quickly.


All the products I purchased worked great. Had an hard time finding the vertical receiver until a friend inform me to go on The Connector Adapter, Receiver, Coupler lock, Ball Mount all fit like a glove. Thank you etrailer. The problem it solve for me is not having to buy a truck. Had the trailer but not the accessories. Had my item in 3 days. You received 5 stars from me and again Thanks


Simple and straight forward I needed a 7 pin RV connector to a 4 pin for my flat trailer. This is a quality product and solved my needs, but it's not always about the product. In my case it was also about Customer service! No need for details other than a company with quality products and excellent customer service is all you can ask for.


SIR -- The connector was exactly
what I wanted and expected! Your co. has all top quality products because I have ordered many times. If I need a special trailer component - wiring or lighting' look no further than E-trailer. Site is easy to use with excellent pictures, illustrations and choices. FOR-- friends new Tahoe.



I have been to suppliers who sell these items,but to no avail. My PU has indipendant sisnal lights and I pull trailers and a Jeep Wrangler with signal lights/brake lights the same. You people not only described what I needed but also had drawings of the female truck socket and the male HM47365 .No one else provided this info. A very fair price, speedy shipping and a very satisfied customer! You will hear from me again. Thank you. Robert M.


Works perfectly for connecting my kayak trailer to my Rv


I started from scratch not knowing the correct part, for a wire harness, for a boat trailer connection to a Toyota 4 Runner. I searched many places looking for assistance without any luck. I then found etrailer. I contacted etrailer. Nicole-Nikki responded immediately. Nicole-Nikki was excellent in helping out with the correct part. I purchased a quality harness at a great price. Everything works. Thanks again Nicole and George for shipping out and the super service.


Works perfectly. Good price and quick delivery. Thanks.




Part fit my trailer and allowed me to add the additional wires for the brakes, another frame ground and a charging circuit for the brake-a-way system with ease. Great find!


Product was exactly what I needed and at a fair price. I'm happy with it. Now I can pull either my camper or utility trailer with the same vehicle thanks to the adaptor.



Great product, does the job.


Very pleased, long time customer … strongly recommend.


Works great! Was a replacement for another brand that had connectivity issues. Very satisfied.


The wiring harness is exactly what I was needing to connect my old trailer to me newer pickup.
Thanks, Jim


The product got here earlier than expected. It arrived undamaged. I plugged it in, tested my trailer lights and am ready for my trip. This product works like a champ.


ETrailer staff was very helpful in assisting me identify the parts I needed to complete getting my car hitch correctly configured. Furthermore, my parts were shipped the same day. Great serivce. I will continue to shop here as I know I can rely on them.


This connector fits very snugly into the 7-way socket and the 4-way plug also holds the wire harness quite firmly--no chance of it bouncing out. Very nice product and exceptional delivery time.

Show More Reviews

See what our Experts say about this Hopkins Trailer Wiring

  • RV Brakes Lights Work Until Tail/Running Lights are Turned on
    There are a few different reasons why turning your running lights on keeps your brake lights from working. The first is a bad ground. Check all of the ground connections for your lights and make sure that they are securely connected to a clean, bare-metal surface. If those look good then you likely have too many lights on your unit. Try disconnecting some lights, one at a time, and see if your brake lights eventually start working while your running light circuit is powered. If you find...
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  • Adapter Needed to Convert 7-Way on 2016 Honda Pilot to 4-Pole
    The Hopkins # HM47365 7-Way to 4-Pole Adapter you referenced is exactly what you need. Simply plug the adapter into the 7-way on your Pilot, and plug the trailer's 4 pole connector into the plug on the other end of the adapter. If you click the provided link, you can see a product description video featuring the adapter.
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  • 7-Way to 4-Way Trailer Connector Adapter for a 2007 GMC Yukon
    If your 2007 GMC Yukon has a 7-Way blade style trailer connector and the trailer has a 4-Way flat trailer connector then yes, you can use adapter # HM47365. If you have a different type of connector on either vehicle let me know and I can determine the correct adapter for you.
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  • 7-Way to 4-Way Adapter Recommendation for a 2011 Mercedes ML350
    Yes, the adapter part # HM47365 would work well for you based on your description of what you have. It sounds like you have a 7-way connector at the back of your 2011 Mercedes ML350 and a 4-way connector on your trailer. This adapter would convert the 7-way to a 4-way and would work well for you. The 4-way connector is still a very widely used connector for trailer wiring. It most often used on trailers without brakes, whereas the 7-way is used on trailers with brakes. If your trailer...
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  • Need Trailer Adapter To Connect 4-Way Trailer Connector To 7-Way on 2011 Honda Pilot
    If your 2011 Honda Pilot has a 7-way trailer connector, the item you selected, Hopkins 7-Way RV to 4-Way, part # HM47365, will work for you. The # HM47365 connector will allow you to connect the 4-way connector on your trailer to the 7-way connector on your Honda Pilot.
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  • Will the Hopkins Adapter # HM47365 Fit a 2005 Chevy Trailblazer
    The Hopkins 7-Way RV to 4-Way Flat Trailer Connector Adapter # HM47365 is actually a universal fit so it is compatible with your 2005 Chevrolet Trailblazer. You simply plug the 7-Way end into the 7-Way on your Trailblazer and then connect the 4-Way on your trailer to the other end of the adapter. I have attached a review video for you to check out as well.
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  • Will the 7-Way to 4-Way Adapter HM47365 Fit a 2014 Toyota Tacoma
    As long as your 2014 Toyota Tacoma has a functional 7-way installed on it the part # HM47365 that you referenced will work well for you.
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  • 7-Way to 4-Way Adapter Recommendation
    Sounds like you are looking for the 7-Way to 4-Way adapter part # HM47365. This is a male 7-way plug that has a female 4-way connector on the other side.
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  • 4 Flat To & Round Adapter To Help Tow My Trailer With A 7 Round Adapter
    The Hopkins Endurance Multi-Tow 4-Way Flat to 7-Way RV Trailer Adapter # HM47180 will adapt your 4-way flat to a 7-way RV-style socket while still retaining the use of the 4-way. The adapter has an enhanced weatherproofing with eternal seals and has corrosion-resistant terminals. It also has durable ABS plastic lids that keep out dirt and moisture. It also has oversize hinges that allow the lids to open 180 degrees for simple connecting. I attached a review video link below.
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  • Simplest 4-Way to 7-Way Adapter
    The simplest 4-way to 7-way adapter available is the part # 37185 which your 4-way would plug into and give you and active 7-way. If you only plan to use the turn signal functions there's no need to ground the additional ground wire.
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  • Recommended Adapter for 7 Way Vehicle Connector to Tow Trailer with 4 Way Flat Plug
    Thank you for the photo. You've got a 7 way connector on your 2010 Mercedes GL450, so you'll want to use the 7-Way RV to 4-Way Flat Trailer Connector Adapter # HM47365. This will adapt your 7 way to allow you to tow a trailer using a 4 way flat trailer connector. This will work with both LED lights and incandescent.
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  • Recommended 7-way to 4-way Adapter To Hook Tear Camper To Tow Vehicle
    We do offer quite a few adapters to go from larger connectors to a 4-way flat connector like what is found on your tear camper. The most common larger connector is the 7-way, so if that is what is on your new vehicle you can use the 7-Way RV to 4-Way Flat Trailer Connector Adapter # HM47365 to still use your trailer with your new tow vehicle. I included a video of the # HM47365 for you to take a look at.
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  • How to Tow a Trailer With a 4-Way With Vehicle That Has 7-Way
    You can absolutely tow your trailer that has a 4-way with your 2015 Chevy Suburban that has a 7-way, and there isn't going to be any rewiring needed, just a simple adapter. Just plug the adapter into your Suburban's 7-way and then plug your trailer's 4-way into the adapter and you're done! The adapter I recommend for you is the 7-Way RV to 4-Way Flat Trailer Connector Adapter # HM47365. I have added a link to a video review of this part for you to check out as well.
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  • 4-Way to 7-Way Blade Adapter Recommendation
    The part # 118710 will technically fit your 4-way but most likely the 7-way you need is different than what this provides as this is a Euro 7-way that wouldn't be found on an American spec vehicle. For a similar setup that would give you most likely the 7-way you need we have the part # HM47365 which has a 7-way flat connector instead.
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  • How to Connect Trailer With 4-Way to Tow Vehicle With 7-Way
    You can absolutely connect your trailer with a 4-way to your tow vehicle with a 7-way. All you need is an adapter: - 7-Way RV to 4-Way Flat Trailer Connector Adapter # HM47365 What this does is plug into the 7-way on your tow vehicle, and allows you to plug in your trailer's 4-way connector. I have added a link to a video review which demonstrates exactly how it's used.
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  • 7- to 4-Way Adapter for a 2015 Chevy Tahoe with Factory 7-Way Trailer Connector
    Yes, the 7-Way socket on the 2015 Chevy Tahoe is the same in function as those on any other vehicle with a 7-Way blade style connector so your friend can use adapter # HM47365. I have included a link to a video review of this adapter for you.
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  • How to Tow a Trailer with a 4-Way Flat Connector with a 2010 Buick Enclave with 7-Way Connector
    To convert the 7-way trailer connector on your 2010 Buick Enclave to a 4-way flat connector, you can use the Hopkins 7-Way RV to 4-Way Flat Trailer Connector Adapter, # HM47365. This adapter will allow you to power the lights on your trailer without having to install a new wiring harness on your vehicle. This way you can tow a trailer with a 7-way in the future if needed.
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  • Recommended Adapter For Volkswagen With 7-Way Plug and Trailer With 4-Pole Flat
    It sounds like you have a 7-Way round plug on your 2009 VW Tiguan and you need to plug into the 4-flat on your trailer. I recommend use the Hopkins 7-Way RV to 4-Way Flat Trailer Connector Adapter, # HM47365. The adapter plugs into your 7-way on the VW and the other end plugs into the 4-flat on your trailer to power the trailer lights. I have attached a video for your reference.
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  • How To Convert 4-Way on Toyota Rav4 into 7-Way for Trailer without Brakes
    Yes, in order to convert the 4-way trailer wiring harness on your Toyota Rav4 into a 7-way trailer wiring harness you just need a simple adapter, the Curt Trailer Connector Adapter part # C57672 which features a plug-in install. The two 4-ways will plug into one another and then you'll have a few more wires to hook up. The white wire goes to ground and then the rest are optional. If the trailer does not have brakes, the blue wire can just be tapped up, the same goes for the yellow reverse...
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  • What is the Difference Between Hopkins # HM47365 and Pollak # PK12716 Wiring Adapters
    Both the Hopkins # HM47365 and Pollak # PK12716 wiring adapters allow a tow vehicle with a 7-way blade-style trailer socket to connect to a trailer that is equipped with a 4-pole flat connector. Both plug in to the socket on the vehicle and provide a receptacle for a 4-pole flat trailer connector. The difference between them is that the Pollak adapter is a single piece while the Hopkins adapter uses two separate sections linked by a short length of wiring. In some applications these flexible...
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  • 7-Way to 4-Way Adapter for 2012 Ram 1500 Towing Pop Up with 4-Way
    The connector you have in your hand is a standard 4-way connector on your trailer so all you need to convert the 7-way of your truck to this is the part # HM47365 and you'd be set!
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  • Boat Trailer Lights Do Not Work with 7-Way to 4-Way Adapter with a 2005 Toyota Tundra
    There could be a problem with the adapter, or it could be pinned out differently than your truck. First, use a circuit tester like # PTW2993 if needed to test the 7-Way on the truck. If all the functions on the pins are working properly, you can eliminate the truck as the problem. If they are not working properly then that would indicate a problem on the truck side and you will want to check all the relays/fuses related to the tow package wiring. If the truck checks out ok, plug in the...
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  • Are RV 7-Way to 4-Pole Wiring Adaptors Vehicle-Specific
    Trailer wiring adapters like Hopkins # HM47065, Pollak # PK12716 and Hopkins # HM47365 are not vehicle-specific products. They will work on any vehicle that has the appropriate connector. The coiled wire adapter # HM47065 that you referenced combines a trailer-side (male) 7-way RV-style plug (that mates with the 7-way socket on your Ram 3500) with a vehicle-side 4-pole flat type plug. This wiring adapter carries only lighting signals (stop, turn and tail) but not other functions like auxiliary...
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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Reno H
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Reno H
Employee Jameson C
Expert Research:
Jameson C
Employee Jeff D
Installed by:
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Employee Randy B
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Randy B
Employee Jacob T
Video Edited:
Jacob T
Employee Alexander C
Updated by:
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Employee Zach D
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Zach D

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