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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
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Hopkins Wiring - HM47365
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Lowest Prices for the best wiring from Hopkins. 7-Way RV to 4-Way Flat Trailer Connector Adapter part number HM47365 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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Hopkins Wiring - HM47365

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


  • 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 etrailer.com. 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 Reviews

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

Average Customer Rating:  4.9 out of 5 stars   (70 Customer Reviews)


- HM47365
by:

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. 579589



- HM47365
by:

909117



- HM47365
by:

892091



- HM47365
by:

Prompt delivery, good price, performs as advertised 848286



- HM47365
by:

Works great! 5 stars. 850013



- HM47365
by:

Exactly what I needed for my boat trailer. Works as expected, high quality and a great price. Fast shipping from etrailer.com. Overall terrific experience. 831609



- HM47365
by:

Good quality. Works as it should. 817176



- HM47365
by:

Purchased ad a replacement. Happy to see the cover on 4 prong to keep out of the weather. 793847



- HM47365
by:

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. 715593



- HM47365
by:

Product was exactly what I needed. 690969


Comments
Product is still working great. No problems.
Kenneth W - 08/19/2020

97531

- HM47365
by:

Works.. now I have lights! 679106



- HM47365
by:

First chance to use it today, worked fi ne. 671100



- HM47365
by:

Just what I needed to adapt my RV to my utility trailer. 664621



- HM47365
by:

It plugs in and works the way it is supposed to however, it did not operate one tail light. I only used it once and have not had a chance to trouble shoot the device. When I do and if I find that the problem is with your unit, I will let you know. 653085



- HM47365
by:

I am very pleased with my adapter. Enables 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. 652100



- HM47365
by:

My package came early I was very satisfied with the delivery add the purchase of my product that would be glad to recommend your service to anyone in need so they can receive the satisfaction I have 650418



- HM47365
by:

I cant really review the products I have purchased, which consisted of various adapters for towing trailers, however I can tell you this place/site is amazing, they offer a wide array of products from A to Z, all under one roof, perfect for one stop shopping...their prices are very competitive and the service is outstanding! 611744



- HM47365
by:

NIce adapter, works well. Like that it includes the cap for the 4 pin. 602363



- HM47365
by:

The product is just right. The order process was easy. The delivery was on time. The follow up has been excellent. If I need something else, I will look at your website first. Thanks 577011



- HM47365
by:

Great product. Industrial strength. I rebuilt a boat trailer using their rollers, brackets winch and this electric connector. Four separate orders. All handled quickly and efficiently by e-trailer. All products are of excellent quality. 573907



- HM47365
by:

Worked perfect. 571073



- HM47365
by:

It works great. 558657



- HM47365
by:

very good 539463



- HM47365
by:

Does what it's supposed to do 517884



- HM47365
by:

The trailer adapter is working well and meets my expectations and quality. 500850


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Show More Reviews

Ask the Experts about this Hopkins Wiring

  • 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.
    view full answer...
  • Adding a 7-Way Trailer Connector to a Toyota 4Runner with a 4-Way
    Yes. If the 7-Way is a blade style 7-Way, which is what is sounds like, you can mount # 37185 to your 4Runner. The 4-Way will plug into it (and still be functional) and then all you will have to do is ground the white wire to the vehicle frame. The other wires on 37185 do not have to be connected but this means that only the light functions will work on the trailer. If you need all the functions to work on the trailer then instead of # 37185 you will need # ETBC7 and a brake controller,...
    view full answer...
  • Taillights and Turn Signals Working But No Brake Lights on Trailer
    Almost every trailer in the U.S. uses a 2-wire or combined wire tail light setup. This means that the turn signals and brake lights are on the same circuit and use the same bulb in the trailer tail light assembly. Because of this, virtually every trailer wiring adapter is designed to carry the turn signal and brake lights on the same pin circuit, so I would assume that this is the case for your 7 to 4 way adapter. It sounds like with working turn signals and taillights, that the problem...
    view full answer...
  • 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...
    view full answer...
  • 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.
    view full answer...
  • 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.
    view full answer...
  • 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.
    view full answer...
  • 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.
    view full answer...
  • 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 # 40376 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...
    view full answer...
  • 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.
    view full answer...
  • 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.
    view full answer...
  • 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.
    view full answer...
  • 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...
    view full answer...
  • 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.
    view full answer...
  • 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.
    view full answer...
  • Parts Needed to Upgrade 4-Way of Trailer to 7-Way
    The type of adapter you'd want to use is a 7-way upgrade kit like part # e99011 since you are wanting to use more circuits than the standard 4-way. This comes with everything needed to install and would make the job very easy and simple as well due to the junction box.
    view full answer...
  • Can MaxxTow Magnetic Light Kit part # MT70097 Plug into Vehicle 7-Way
    Yes you can plug the MaxxTow Magnetic Light Kit part # MT70097 into the 7-way of your RV but you'll need to use a 7-way to 4-way adapter like part # HM47365 as well.
    view full answer...
  • 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.
    view full answer...
  • B&W Tow & Stow 3-Ball Mount that Fits 2018 Chevy Silverado 1500
    The B&W Tow & Stow 3-Ball Mount # BWTS10048B that you referenced will fit perfectly to the 2 inch hitch you have on your 2018 Chevy Silverado 1500. For a hitch lock the part # 63232 is a great option as it also doubles as an anti-rattle device which means there will be less movement. To lock the ball mount platform to the shank you'd then want the part # AM3492. Then for a 7-way to 4-way adapter the part # HM47365 will work really well and is also easy to use. I attached review video...
    view full answer...
  • 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!
    view full answer...
  • 7-Way to 4-Pole Wiring Adapter to Allow Use of Pilot Oval LED Brake Light Hitch Cover CR-017
    It sounds like your 2014 Toyota Tacoma has a 7-way RV-style blade trailer connector, like the part shown in the linked photo. To connect this type of trailer wiring to the 4-pole flat type used on the Pilot Oval LED Brake Light Trailer Hitch Receiver Cover # CR-017 you will need an adapter such as # HM47065, # HM47365 or # MT70086. These and all such adapters are shown on the linked page.
    view full answer...
  • 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...
    view full answer...
  • Towing Trailer with 4-Pole Connector with 2001 Land Rover Discovery with 7-Way
    If your Discover has the 7-way connector that uses the round pins like part # PK11720, we do not offer a pre-made adapter, but one can be easily constructed using a 4-pole vehicle end connector like part # 18002 and a 7-way round pin trailer end connector, part # PK11700. The 4-pole would be wired to the 7-way round pin as shown in the diagram I made for you. If your Discovery has the 7-way with the blade-style pins like part # PK11893, an adapter is available, part # HM47365.
    view full answer...
  • Does a Brake Controller Have to Install When Installing a 7-Way on a Trailer
    Yes, you can install a 7-way without also installing a brake controller. Basically you have all of the trailer light functions covered and then later when you add a brake controller the trailer brakes would then be functional. Then for an adapter to convert the 7-way to a 4-way you'd only need the part # HM47365 and you'd be set.
    view full answer...
  • 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.
    view full answer...
  • What Adapter is Needed For Borrowed Trailer Pulled By Mercedes-Benz ML350
    It sounds like you have a 7-way connector on your ML350. If the trailer you plan on towing has the female version of your connector then you will not need an adapter. The other possible situation is you have the 7-way male connector on your ML350 and the trailer has a 4-way. If this is the case then Hopkins # HM47365 should work. In order to determine exactly what will work with the trailer, we will need to know what connector is used on the trailer. Not all trailer companies use the...
    view full answer...
  • 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...
    view full answer...
  • 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.
    view full answer...
  • Trailer Wiring Adapter to Join Truck 7-Way with Trailer 4-Pole Connector
    It sounds like your Durango has what we call a 7-way blade type trailer socket, which is shown in the linked photo. This common trailer connector uses flat or blade type contacts. We offer adapters to join this type of connector to the 4-pole you have on your trailer and you can see all on the linked page. For example, Pollak # PK12716 plugs in to your Durango's 7-way and provides a connection point for the trailer's 4-pole wiring harness. Others like the coiled-cable adapter # HM47065...
    view full answer...
  • Enclosed Carrier Recommendation for a 2013 GMC Acadia
    For a hitch mounted, enclosed carrier for your 2013 GMC Acadia your best option would be the Rola Swinging Enclosed Carrier part # 59109 that you referenced. This carrier will give you complete cargo area access unlike the other styles of hitch mounted carriers. This carrier uses a 4-way harness to activate the taillights of it. Since you have a 7-way you will need a 7-way to 4-way adapter like the part # HM47365. I attached a review video for this carrier for you to check out also.
    view full answer...

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Info for this part was:

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

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