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Hopkins Heavy-Duty Trailer Coiled Wire Adapter for 7-Way to 4-Wire Flat
Hopkins

Hopkins Heavy-Duty Trailer Coiled Wire Adapter for 7-Way to 4-Wire Flat

Part Number: HM47065
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This heavy-duty, coiled cable adapter is compatible with a 7-way RV blade trailer socket on the vehicle and adapts it to work with a 4-wire flat connector on the trailer. Great Prices for the best trailer wiring from Hopkins. Hopkins Heavy-Duty Trailer Coiled Wire Adapter for 7-Way to 4-Wire Flat part number HM47065 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (176)
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  • Videos (2)
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Hopkins Trailer Wiring - HM47065

  • Wiring Adapters
  • Single-Function Adapter
  • 4 Flat
  • Plug and Lead
  • 0 - 5 Feet Long
  • 7 Round - Blade
  • Hopkins

This heavy-duty, coiled cable adapter is compatible with a 7-way RV blade trailer socket on the vehicle and adapts it to work with a 4-wire flat connector on the trailer.


Features:

  • Heavy-duty, coiled cable
    • Weatherproof jacketing
  • Easy-grip connectors
  • Tin-plated terminals for corrosion resistance


Specs:

  • 3' Cable when stretched
  • 7-Way RV blade to 4-wire flat


Flex Coil Adapters provide increased durability and the additional length that may be necessary to reach between the tow vehicle's socket and the trailer/towed vehicle's plug.



47065 Hopkins Trailer Connector Coiled Adapter, 7-Way to 4-Way




California residents: click here


Video of Hopkins Heavy-Duty Trailer Coiled Wire Adapter for 7-Way to 4-Wire Flat

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




Video Transcript for Review of the Hopkins Heavy-Duty Trailer Coiled Wire Adapter for 7-Way to 4-Wire Flat

Hey everybody, Ryan here at etrailer. Today we're gonna be checking out the Hopkins trailer wiring adapter. So this is gonna let you go from a seven-way round type connector to a four-way flat type connector. What this is gonna do is really simple. It's gonna let you plug into your vehicle's seven-way round type connector and bring it down to a four-way flat. So the signals that it's gonna send back to your trailer will be your taillights, your brake lights, and your turn signals.

Now there's a ton of different adapters like this, or similar to this, available and you know, what this one will work good for is just about any situation really, but I could see it really becoming useful for those of you that tow multiple different trailers, you're not real sure what trailer you're gonna be pulling type deal. If your trailer wiring's kind of short, maybe you have a a real long ball mount or if your seven-way's in a kind of a funny spot like our 4Runner here today. So believe it or not, the seven-way is all the way kind of buried way over here on the driver's side. And even with this trailer's wiring, like, that's a pretty good length. You know, that's not short by any means.

There's no way that would even come close to being able to plug in. So by utilizing our adapter, I'll be able to, maybe, if I get to it here, plug it in, that'll give us all that extra length we need and then some, honestly. So I might be able to just kind of drape this over and allow you to make that connection and not have to worry about it coming disconnected when you make those turns and stuff, too. Since this is coiled, it'll stretch out when you make the turns or if you need that length and kind of gives you the freedom to kind of set things up how you want to. If you we're to stretch this cord out completely, the length that it's gonna give you is three feet.

So that should be more than enough for just about any situation you might find yourself in. If you don't think you're gonna need any additional length like this and you're looking for something a little bit different, what I would suggest is a real simple adapter like this. This is a seven-way, and then on the back there's just a four-way that'll allow you to plug in there. So that's always an option for you as well. And there's different variations to this as well.

So we just did one of these. It's a seven- to five-way flat type connector on this end. So if you got a a five-way type flat connector on your trailer, you can always check that out and that'll allow you to hook everything up and get it going. As far as the quality of this, I'm not gonna lie, I'm usually not super crazy about Hopkins stuff but like I said, I've been doing several of these wiring adapters and I actually like 'em, I think they're well built. The wires feel thick, you know, it has a good coating on it that's, you know, not super stiff but not super loose, so it'll stretch out when you need it to and whatnot. But more importantly, the connectors are really nice. They're not that brittle plastic like you'd usually see. They're almost a, almost like a hard rubber, I guess, if that makes sense. And what I like about 'em too is everything is sealed up up nice, for the most part. Like on some of the cheaper ones you'll see the wires kind of come in and it's just kind of cinched down. That's not the case with these. It's all molded almost, I guess you could say. And I like how on the ends they're somewhat reinforced, you know, like drops back some. 'Cause a lot of times it'll happen over years, you know, without this here there's no support there. Then the wires end up getting kind of tossed around like that and cause some connection issues, so this should hold up for some time. I like the thickness on the four-way side too. It gives you a good, you know, spot to actually grip and get it plugged in. So pretty impressed with it, actually, should definitely hold up. Gives you a little dust cover, too. So really no reason that this should give you any issues for quite some time. Other than that, at the end of the day, you know, there's really not a whole lot to it. Pretty simple part, but can be a great solution for a lot of people who are needing to get their four-way trailer hooked up to their vehicle that has a seven-way round style trailer connector. And that'll finish up our look at of the Hopkins seven to four-way trailer wiring adapter.

Customer Satisfaction Score:


Customer Reviews

Hopkins Heavy-Duty Trailer Coiled Wire Adapter for 7-Way to 4-Wire Flat - HM47065

Average Customer Rating:  4.8 out of 5 stars   (176 Customer Reviews)

This heavy-duty, coiled cable adapter is compatible with a 7-way RV blade trailer socket on the vehicle and adapts it to work with a 4-wire flat connector on the trailer.

by:

Item was just as I anticipated. It looks good, works great, and the delivery was as promised. E Trailer is a good place to do business.

Neal W. profile picture

Neal W.

7/8/2017

Works as well as the day I bought it. No complaints. A great product.



by:

Works, exact fit, high quality, coils tight so max of about 3.5’ perfect! Heavy duty wiring, great waterproof connections.



by:

Will work great around the water. Always backing the trailer to the river with multiple turns and have enough stretch to stay connected!



by:

Needed a longer connector for my vehicles. Both have 7 way plugs, but I use a trailer with a 4 flat plug. The coiled adapter works great for both of the vehicles. Very good product if you need some extra length and the fact that it has the coils makes for a better appearance.



by:

I needed a trailer lite adapter for my 4Runner to my boat trailer. This adapter was just what I needed and it worked great, just as expected. It's also high quality and reasonably priced. Keep up the great work etrailer.

Larry profile picture

Larry

2/22/2020

Still works great, I also use it when I tow my utility trailer.



by:

haven't hook it up yet. Looks like this solves the extra wire cable to light up the cargo carrier. No more wire cable hitting the road surface and no more cable wrappings around the long trailer hitch.



by:

Bridges the gap nicely between the utility and small boat trailers I use and the offset light socket on my 2009 4Runner. Really heavy construction; it feels like it'll last a long, long time.



by:

Useless- how many towed vehicles are within the three foot length of this cable? Do not order this with the wiring kit for your towed vehicle that lets you use the vehicles tail lights instead of the magnetic lights. The tow bar between your motorhome and the "toad" is around 4' long. I'm not sure what this can be used for.



by:

This was perfect for me!



by:

The tow-harness and components appears quite well made. Fit was perfect, installation was easy, and tested and worked the first time. The instructions, however, may have been more specific to earlier Pilots, thus were not entireley clear and caused some delay in installation.



by:

This is just what I was looking for. It works perfect for my trailer and car carrier. It's heavy duty. The shipping was fast. I looked at other ones,but none as good as this for the price.I will buy from trailer again.



by:

Excellent quality and very sturdy const ruction.



by:

I have yet to make a connection from truck to trailer harness, however I anticipate functionality since the HM47065 Adapter is very well constructed. Thank you



by:

I Installed on my 2013 Silverado with no problems. I pull the pickup with a Triple E Empress RV and have gone from Iowa to Key West last winter and from Iowa to Prince Edwards Island Canada last summer.



by:

Very well put together robust at both ends easy to attach at either connection not flimsy at all.



by:

Perfect for your new SUV with a 7 pin electrical connector, so you can connect to that 4 pin trailer.



by:

Heavy duty works great



by:

Product worked as described and is well made. Like the coils as this prevents the wire harness from dragging on the ground while allowing harness to stretch during turns.



by:

This was a prompt and satisfactory transaction with delivery in three days. The merchandise is a quality trailer light connector. I highly recommend etrailer.com for anyone needing trailer accessories.



by:

Exactly what I wanted. Shipping was fast as always. Amazing place to shop!

John T. profile picture

John T.

9/6/2016

Better than I expected! Works awesome!



by:

Haven't got to use adapter very impressed with the construction of this product, will be perfect for what the use will be. Have a newer and larger truck my trailer connections are too short with out the wire adapter.



by:

Perfect design! The bright color acts as a reminder not to leave it plugged in when I'm done trailering. The coil design extends and contracts with the movement of the truck.



by:

Good quality product



by:

I purchased one of these back in 2010 when I bought my new Nitro boat. This is one of the best products I have ever used. I have never had any issues with it and I can leave my lights hooked up when I back in with no problems with water. I purchased this one in 2017 due to someone stealing mine from my trailer in one of the parking areas so I suggest securing it in you vehicle. Again a great product.



by:

I have ordered from etrailer five times and each every time I am impressed. The prices are the lowest out there, shipping is exceptionally fast and their selection is beyond equal. I won't buy from anyone else, why should I?


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Show More Reviews

See what our Experts say about this Hopkins Trailer Wiring

  • Is There a Different Sized Plug Version of the Hopkins HM47025?
    The simple answer to this is going to be no, because trailer connections adhere to an industry standard in order to ensure compatibility between different manufacturers and for end user convenience. Trailer connector adapters like the current # HM47025 will be the same size as something like the Hopkins # HM47065 -they are all going to have the same dimensions assuming they're the same type of connections (7 flat, 4 or 5 blade, etc.). For these reasons, the 7 way end on the any adapter...
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  • Will Hopkins Heavy-Duty Trailer Coiled Wire Adapter for 7-Way to 4-Wire Flat Fit 2015 Jeep Cherokee
    If your 2015 Jeep Cherokee Trailhawk has a 7-Way trailer connector on it then yes, the Hopkins Heavy-Duty Trailer Coiled Wire Adapter # HM47065 will plug right in and provide some extension and a 4-Way flat to plug in a trailer. I have linked a video review of this adapter for you. We have a lot of 7- to 4-Way adapters. Some have an extension and some do not. I have included a link to the options for you.
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  • Will Hopkins Heavy-Duty Trailer 7-Way to 4-Wire Adapter # HM47065 Activate Brakes on Trailer
    The Hopkins Heavy-Duty Trailer 7-Way to 4-Wire Adapter # HM47065 is intended to plug in to a tow vehicle 7-way socket, take its lighting signals only (not a brake signal or 12V power) and route them to the 4-pole flat connector. When an adapter reduces the number of wires it also reduces the number of electrical circuits and therefore the number of functions. A trailer with electric brakes will need to have at least a 5-pole wiring harness (one more wire to provide one more function) as...
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  • Recommended Flat-Tow Wiring Harness for a 2019 Ford F-150
    In order to flat tow a 2019 Ford F-150 you will need a number of components (which I have attached for you below) and this does include a flat-tow wiring harness. The flat-tow wiring harness will take input from the motorhome's lighting signals and then apply these to the towed vehicle.The flat-tow wiring harness is going to be composed of two components, the umbilical which bridges the gap between the tow vehicle/toad and the trailer side flat-tow wiring harness which is what gets spliced...
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  • Flat Towing a Vehicle with a 4-Way Connector for Lighting Using 7-Way Trailer Connector on RV
    If your vehicle being flat towed is wired with a 4-way to power its lights from the RV with a 7-way trailer connector you can use the Hopkins Coiled Wire # HM47065.
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  • Tow Bar Wiring Recommendation for 2001 Ford Ranger
    For tow bar lighting for your 2001 Ford Ranger you would want the Hopkins Kit part # HM56004 which is a custom fit setup for your vehicle. The connectors plug inline with the taillight connectors on your truck and allows your RV to control them. If your tow vehicle has a 7-way you would want the part # HM47065 to use as an umbilical adapter to span distance between RV and Ranger.
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  • Coiled 7-Way to 4-Way Recommendation for Towed Vehicle
    Yes, we have the Wesbar # 787196 which is an 8 foot long 7-way to 5-way. I know you need a 4-way but this will work well as the fifth circuit would just not be used.
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  • 7-Way to 4-Wire Adapter Cord With 8' of Length
    Yes, as the Hopkins Heavy-Duty Trailer Coiled Wire Adapter for 7-Way to 4-Wire Flat part # HM47065 is only 3' long, you will want to use the Wesbar Coiled Adapter 7-Way RV to 4-Way or 5-Way flat part # 787196 as this cord is 8' long. Both coiled adapters offer a 7 to 4-way conversion. I have included a video review of this product for you.
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  • Adapter for 7-Way or 6-Way to Plug Into 4-Way on Vehicle Being Flat Towed
    I'm sure we have what you need but I'm not certain exactly what trailer connector you have on your Bobtail truck. It looks like there are a number of potential options for the type of connector you might have, so what I can do is give you the options for an adapter so you can choose the right one. - 6-Way Round: Hopkins Endurance Flex Trailer Connector Adapter - 6-Pole to 4-Pole # HM47320 - 7-Blade: Hopkins Heavy-Duty Trailer Coiled Wire Adapter for 7-Way to 4-Wire Flat # HM47065 - 7-Round:...
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  • Changing a 7-Way to a 7-Way and 4-Pole Connector on a 2014 Toyota Tacoma
    I do have a solution for you, but there are no adapters that plug into a 7-Way and then have 7-Way and 4-Pole connector plugs. You can do 1 of 2 things. You can either use an adapter like the Hopkins # HM47065 or you can change out the 7-Way connector on your 2014 Toyota Tacoma for the Hopkins # HM48470 which will give you both the 7-Way and 4-Pole connectors. I recommend going with the 2nd choice (part # HM48470) since it is a permanent solution that will accommodate both trailers and...
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  • Available 7-Way to 4-Pole Trailer Wiring Adapters
    We do offer trailer wiring adapters that can allow connecting different wiring formats such as a 4-pole and a 7-way. But as you noted, if you convert 7-way vehicle wiring down to 4-pole trailer wiring you do naturally lose 3 circuits: 12V auxiliary power, reverse lights and trailer brake power. All such adapters are shown on the linked page. I suggest using a cable type adapter like # HM47065 since it provides strain-relief, unlike the solid adapters such as # PK12716.
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  • Compatible Flat Towing Equipment For A 2021 Jeep Cherokee Overland
    The Roadmaster Direct-Connect Base Plate Kit # RM77ZR are a fit for a 2021 Jeep Grand Cherokee L Overland. If this is your model then yes they will fit. If you have a 2021 Jeep Cherokee Overland then you'll want the Roadmaster Direct-Connect Base Plate Kit # RM-521451-5 instead. The Roadmaster Universal Hy-Power Diode Wiring Kit # RM-154 is compatible with all 2021 Jeep models so you will be able to use this diode kit to use your Jeep Cherokee's tail lights and wiring system while preventing...
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  • 5 Foot Long 4-Way Flat to 7-Way Flat Adapter
    Not exactly, but I can come up with a 5 foot long adapter that has a 7-way male on one end and a 4-way female on the other. Basically you would need the # 18045 and then to plug in the # PK12716 into the corresponding end and you would be good to go.
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  • Adapter for a 7-Way Connector on a 2010 Toyota Tacoma and a 4-Way on Magnetic Wiring Harness
    It sounds like the magnetic kit you have uses a 4-Way flat connector and the truck has a 7-Way blade style connector. There is an adapter you can use. Several as a matter of fact. I have included a link to them for you to view. A simple option like # PK12716 is all you would need. But since you are flat towing, you may need some extra slack so going with a coiled adapter like # HM47065 may be the best way to go.
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  • 7-Way Recommendation to Replace 4-Way on a Trailer
    Sounds like you have a trailer that currently has a 4-way and a tow vehicle that has a 7-way. Based on what you said you are looking for the part # PK12706 would be what you would need. I attached a help article on trailer wiring for you to check out as well.
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  • Recommended Flat Towing Removable Light Kit for Jeep and RV with 4 way Flat Connector
    We are absolutely here to help in these types of situations! Using something like the Magnetic LED Tow Lights # TLL21RK would bypass any of the vehicle lighting completely and give you a set of tow lights that are easy to remove when not in use. This will plug into a 4 way flat on your RV, or if you've got a 7 way connector you can use the Hopkins Heavy-Duty Trailer Coiled Wire Adapter for 7-Way to 4-Wire Flat # HM47065 you mentioned. When it comes to the brake lights not working on...
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  • Is Wiring Adapter Available to Connect 4-Flat and 4-Round to 7-Way Vehicle End Connector
    I have a couple of solutions for you, but there is no adapter available that will allow you to connect both the 4-Way flat and 4-Round connectors to your motor home's 7-Way blade-style connector. If local laws don't require you to use both the lights on the tow dolly as well as additional lights, I recommend only using the lights that will be most visible on the road, likely the additional taillights. We have one wiring adapter that will allow you to connect the 7-Way blade-style connector...
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  • 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...
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  • 7-Way to 4-Pole Wiring Adapter for Audi Q7
    The wiring in many German autos will not react well to the presence of LED lighting on a trailer, or even in an item like the 7-to-4 Adapter # 47345. I recommend you try another 7-to-4 adapter that does NOT have built-in LED test lights, such as # PK12716, if your trailer does NOT have LED lights. If it DOES have LED lights the instead use # C35FR. You can also use a coiled cord type adapter like # 787196 or # HM47065.
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  • Malfunctioning Right Turn Signal on Flat Towed 2006 Jeep Liberty and 2002 Winnebago Journey
    It sounds like more than anything there may just be a ground issue, so I would first recommend checking the ground wires on the tow vehicle to make sure that it is firmly secured to a paint and rust free surface. This could be the reason that you're experiencing an issue when the blinker is engaged when it's connected. I'd also check to make sure that none of the wires going to the right hand blinker are damaged and touching any metal on the vehicle. If you check the wiring and still...
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  • 7-Way to 4-Pole Tow Bar Wiring Adapter Needed to Connect RV to Vehicle
    The adapter needed will depend on which 4-pole connector is used on the vehicle. For a 7-way to 4-pole flat connector, use part # HM47065. If the 4-pole connector has the round plug, use the 7-way to 4-pole round adapter, part # HM47043.
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  • Recommended Cost Effective Flat Towing Setup For 2007 Hummer H3
    I would be happy to help! To flat tow your 2007 Hummer H3 behind your motorhome you will first need a base plate kit of which I recommend the Demco Classic Base Plate Kit - Fixed Arms # DM9518193 which will pair perfectly with the Demco Commander II Non-Binding Tow Bar - Victory Series - RV Mount - 2" Hitch - 6,000 lbs # DM9511012. The # DM9511012 is a great choice due to its 6000lb weight capacity and its non-binding arms that allow you to quickly and easily unhook your tow vehicle even...
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  • 7-Way to 4-Way Adapter Recommendation
    I have a better solution for you, but technically the part # HM47065 that you referenced would work go from a 7-way to a 4-way connector. What would be a better solution would be the part # PK12716. This will plug right into your 7-way and will allow you to connect your 4-way to it.
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