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Hopkins Heavy-Duty, Coiled Trailer Connector Adapter - 7-Way to 6-Pole Round - Center Pin 12V Power

Hopkins Heavy-Duty, Coiled Trailer Connector Adapter - 7-Way to 6-Pole Round - Center Pin 12V Power

Item # HM47083
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Hopkins Heavy-Duty, Coiled Trailer Connector Adapter - 7-Way to 6-Pole Round - Center Pin 12V Power Single-Function Adapter HM47083
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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 6-way connector on the trailer. Center pin on trailer side connector must be for 12V power. Lowest Prices for the best wiring from Hopkins. Hopkins Heavy-Duty, Coiled Trailer Connector Adapter - 7-Way to 6-Pole Round - Center Pin 12V Power part number HM47083 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (13)
  • Q & A (32)
  • Videos (1)
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Hopkins Wiring - HM47083

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

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 6-way connector on the trailer. Center pin on trailer side connector must be for 12V power.


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


  • 3' Cable when stretched
  • 7 RV blade to 6-pole round connector
    • Adapter works with trailers where the center pin is used for 12-volt power

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.

47083 Hopkins Trailer Connector Coiled Adapter, 7-Way (RV Blade) to 6-Way

California residents: click here

Video of Hopkins Heavy-Duty, Coiled Trailer Connector Adapter - 7-Way to 6-Pole Round - Center Pin 12V Power

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

Video Transcript for Review of Hopkins Wiring - Wiring Adapters - HM47083

Jeff: Hello everybody. This is Jeff at etrailer.com.Today, we're going to take a look at this Hopkins heavy duty seven way to six pole round coiled trailer connector adapter.Now, if your trailer has a six pole round connector on it and you go to connect to your vehicle and you find out there's only a seven way RV blade connector on the vehicle, that would be a problem. Now, this adapter right here will solve that problem. This is a nice heavy duty coiled cable adapter. It is compatible to plug into the seven way RV blade connector that's on your vehicle and it'll adapt it to work with the six way connector that's on your trailer.Now, the thing you need to make sure is that that center pin on the six pole round trailer side connector must be a 12 volt power connection for this adapter to work. Now, this is a nice heavy duty coiled cable.

You can see when it's stretched, it's about three foot long, provides the extra reach while ensuring that the wire will not drag due to the flex coil design. Has a nice weatherproof jacketing on it. Easy grip connector on this end. Does use tin-plated terminals for corrosion resistance.Other nice feature on the six pole end, you can see it has this nice attached dust cap here that when you're not plugged in or using it, you can just put it on over there and it'll protect the terminals from the elements. And it also uses this swing away metal clamp right here you can see, that'll keep the connection to the six pole end on your trailer nicely attached.

So if you go to attach it, you just take your plug off, plug it into the six way, rotate that metal clamp up and it'll hold the two connections together, keeps them from coming apart.And then when you're done, just go ahead and put your . when you're not using it, go ahead and put your cap back on and you can swing this out of the way up against the cord. Very nice connection.But that should do it for the review on this Hopkins heavy duty seven way to six pole round coil trailer connector adapter.

Customer Reviews

Hopkins Heavy-Duty, Coiled Trailer Connector Adapter - 7-Way to 6-Pole Round - Center Pin 12V Power - HM47083

Average Customer Rating:  4.7 out of 5 stars   (13 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 6-way connector on the trailer. Center pin on trailer side connector must be for 12V power.

- HM47083

I bought a new truck last year which had an electrical plug that did not fit my horse trailer. The Hopkins adapter that I ordered from etrailer.com was received in a very timely manner. It also was a perfect fit I just plugged it in and was good to go. I used it the whole year with no problems. I would not hesitate to use etrailer.com again.

- HM47083

The coiled trailer connector adapter I order was shipped the day after my order and I received this item quickly. Based on my smooth transaction with e-trailer, I would recommend this website to my friends. In fact this site was recommended to me by my son-in-law.

Just fine as I expected, thanks.
Herb H - 07/09/2016

- HM47083

This is the strangest product I've run into. Besides being to short the six wire end has male pins. Try to go to any auto parts store trailer outlet even to e.trailer.com and find a connector that is mounted on a vehicle and it will have a male end on it. Who in there right mind would want to have a connector mounted on there tow vehicle with a pig-tail that comes out from the mail connector mounted on the tow vehicle. That's the only part I could find. So I went to an auto parts store and got parts and assembled my own cable that will work just fine. Besides it is longer and won't pull out of it's connections when making turns; the coil is to stiff for even a short distance.

- HM47083

Greg S. was very helpful, etrailer prices are great. This is why I have been a repeat customer.

- HM47083

Well made quality product with smart pa ckaging.

- HM47083

Order arrived very quickly, even during the Christmas rush. Works great, extremely happy.

- HM47083

Super heavy duty. Perfect fit. Very well made and price is good for this product. My truck already had the towing package so the 7 blade end fit without any adapters, as well as the 6 pole end that hooks up to the trailer. Very satisfied.

- HM47083

Excellent quality and heavy duty products. I could not locate these type of cords locally but found them at etrailer. The cords are doing the job just as I planned. Would recommend etrailer for your towing needs.

- HM47083

Great deal.... Thanks! I looked all over for this type of adapter. Very hard to find. Thanks to you I am spared the task of making a hard wire change just to pull an old hay trailer for my Dad. Thanks again!!

- HM47083

So glad to have this product, which fit my connector perfectly. Customer Service was very helpful in assisting me in purchasing the correct item.

- HM47083

I got what I ordered, the process was easy, only took 2 days to get here.. They have good quality products!

- HM47083

Excellent durable quality

- HM47083

Quick to ship


Ask the Experts about this Hopkins Wiring

  • 7-Way Trailer Wiring Configuration
    If either your vehicle or trailer 7-way wiring does not have all wires connected to activate all of the 6 possible circuits you can make that last connection to activate it. On the trailer side it is really easy to install a new full-functioning 7-way plug by adding a junction box like Epicord # 277-000141. This junction box includes a pre-wired 7-way trailer plug, like the one shown in the linked photo which is wired to the RV standard. By installing this box on the trailer you...
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  • 7-Way Blade To 4-Pole Round Female Adapter
    The configuration you are looking for is pretty rare so an adapter like what you are wanting isn't available. So your best option would be to make one starting with the part # RM-1064-B which is coiled 4-way wiring that you could attach the connectors you are wanting on either side. For a female round socket on one end you could use the part # PK11410 and then for a 7-way plug part # PK12706.
    view full answer...
  • How to Tell if Trailer Has 6-Way or 7-Way Installed
    It sounds like you have a 7-way blade connector on your boat trailer as that is a very common connector on boat styles. This connector has 6 pins around the outside of the connector and a center pin for a total of 7. Part # A7WCB would be what a 7-way would look like. If you had a 6-way it would look like part # PK11604.
    view full answer...
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  • Troubleshooting 6-Way to 7-Way Trailer Adapter Where Functions Arent Working Correctly
    It is very likely that your 6-way is not wired for the 6-Pole to 7-Pole Trailer Wiring Adapter # 47435. Trailer wiring with 6-way connectors can have two ways the brake and hot are wired, so it is likely the 12V hot and brake output wires are not in the correct locations, which is easy to switch. This adapter is made for the 12v power to be the center pin of your 6-way and the pin in the 10 o'clock position for the brakes. You can verify this using a circuit tester like part # PTW2993....
    view full answer...
  • Availability of a 7-Way to 6-Way Long Cable Trailer Connector Adapter for Flat Towing
    We do have some options for you. The wiring connectors you need are in our Tow Bar section under Tow Bar wiring, and then wiring connectors. You can use the RoadMaster Flexo-Coil Cable, # RM-146-7. It is 8 feet long and goes from a 7-Way blade to a 6-Way round. We also have the Blue Ox 7-Wire to 6-Wire, Coiled Electrical Cord, # BX88206. This cable is 7 feet when stretched. Between these two, I would go with the RoadMaster cable because the extra length may be needed. I have included...
    view full answer...
  • Wiring Up a 7-Way # 20246 to a Trailer without a Reverse Light Circuit
    The center pin of the 7-way is the reverse light circuit, if your trailer does not have the need for a reverse light circuit then you do not have to use it. You would just connect all of the other wires and leave that one unused. To see how a 7-way typically gets wire up check out the picture I attached. You will want to wire the leads of the # 20246 by function to the trailer wiring. The yellow wire of the 7-Way # 20246 would not be used as it goes to the center pole.
    view full answer...
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  • Trailer Brakes Do Not Work When Using 7-Way to 6-Way Adapter with a 2010 Chevy Silverado
    The problem that you are experiencing is likely happening because there are 2 different ways to wire a 6-Way trailer connector. The brake output pin will wither be the center pin or it will be in the 2 oclock position, if looking at the face of the trailer side connector. Which ever one that it is, the other one would be the 12 volt circuit. Normally when this happens the trailer brakes will immediately lock up. But it is possible because you have a Chevy truck that the 12 volt circuit...
    view full answer...
  • Trailer Wiring Extension to Allow Utility Trailer Plug to Reach Truck Bed Connector
    We can definitely help you! If your trailer and truck connectors are RV-style 7-way blade types we offer extensions in various lengths. For example, if you need several feet of additional length we offer the Curt Universal 5th Wheel/Gooseneck 7-Way Extension # C56080 which is 7-feet long. If a shorter extension will suffice you might use the 28-inch TorkLift # TLW6028, 36-inch # TLW6036 or 48-inch # TLW6048. If either your truck or trailer use different connectors (the linked...
    view full answer...
  • 6-Way Vehicle to 7-Way Trailer Adapter Recommendation
    We have exactly what you need. It sounds like you have a 6-way round connector on your 1999 Ford F-250 and need to tow a trailer with a 7-way blade connector. All you need is the adapter part # 47435. Check out the review video. The # HM47083 that you referenced is the opposite adapter you would need. It would be for if the vehicle had a 7-way and the trailer had a 6-way.
    view full answer...
  • 7 Foot 7-Way Extension Recommendation
    I believe the closest thing to what you want would be the 7-Way Connector Loop # 20027. This product is 7 feet long and would act as an extension for your 7-way connectors. Although it is longer than you said you needed you could loop up the excess and run a zip-tie around it to give you the right length.
    view full answer...
  • 7-Way to 6-Pole Trailer Connector Adapter for Horse Trailers
    Most horse trailers have a 6-pole trailer connector. In order to attach the 6-pole trailer connector to your vehicle then you will want to use the Hopkins Heavy-Duty, Coiled Trailer Connector Adapter part # HM47083 if the center pin on your vehicle connector is for 12v power or part # HM47085 if the center pin on your vehicle connector is for the brake circuit. You will need a 7-way connector on your vehicle in order to activate the trailer brakes on your horse trailer. If you do not...
    view full answer...
  • Availability of A 7- way Adapter to 6-pole Round Male Connector
    The Hopkins Heavy-Duty, Coiled Trailer Connector Adapter - 7-Way to 6-Pole Round - Center Pin Auxiliary, item # HM47083, is designed to go from the the 7-way connector on a towing vehicle to a 6-way female connector on the towed vehicle. The center pin on the 6-way end is wired for 12 volt auxiliary function. If your towed vehicle has a male connector on it, to operate the brake lights when being towed, then you will need the RoadMaster 7-Wire to 6-Wire Flexo-Coil Kit, item # RM-146-7,...
    view full answer...
  • Can a Trailer Battery Be Charged through 12 Volt Circuit on Hopkins Coiled 7-Way to 6-Way Adapter
    Trailer wiring on a vehicle or trailer can provide a maintenance charge only to a 12 volt battery (if it is a regular car type of battery) but the wiring is not heavy enough, nor are most vehicle alternators strong enough, to push back the amperage required to charge up a 12 volt battery. If it is a small breakaway battery then it can charge it up. So as long as the 12 volt circuit is working on the tow vehicle and the matching 12 volt circuit on the trailer side is connected to the...
    view full answer...
  • 2 Foot Long 6-Way Vehicle to 7-Way Trailer Connector Adapter
    A 6-Way to 7-Way adapter is not all that common but we have a few. But they are not 2 feet long. The closest we have is # 47435 which end to end is around 12 inches but the wiring part between the 6 and 7-Ways is 6-1/2 inches long. What you could do is use # 50-87-004 which is 4 feet long but can be trimmed down to 2 feet. You would just need to add a trailer side 6-Way, # PK11604.
    view full answer...
  • How to Order 38 foot Long 7-Way to 7-Way Adapter
    We have the Deka Wire - Jacketed 7-Wire # DW04914-1 which is jacketed 7-way wiring we sell by the foot. You could order it in a quantity of 38 feet and you'd get a 38 foot long section of 7-way wiring you could then wire to the 7-way connectors you need like the # 54-77-003 for the plug end or the part # HM48480 for the female side.
    view full answer...
  • Connector For 6-Round on Truck Camper to 7-Way on 2014 GMC Sierra 1500
    We can help you out with the parts needed to go from your camper's 6-way to the 7-way of your 2014 GMC Sierra 1500. First, if you are looking for a 7-way for the truck bed of your Sierra for the plug-in connection, what you can use is the 5th Wheel/Gooseneck 90-Degree Wiring Harness with 7-Pole Plug # 50-97-410. Then, to connect to your camper's 6-round, there are a couple of options, depending on if your camper's 6-way center pin is the brake signal or the 12 volt. - Center Pin...
    view full answer...
  • Do Hopkins Trailer Wiring Adapters # HM47083 and # 47549 Do the Same Thing
    Both of the Hopkins wiring adapters you referenced, parts # HM47083 and # 47549, will plug into a vehicle side 7-way socket and convert that connector format to a 6-way round-pin type. The main difference is that part # HM47083 includes a coiled cable that is 3-feet long when stretched fully while the # 47549 is just the adapter portion without the extension cable. Another difference is pin configuration. Usually 6-way connectors use the center pin for the trailer's 12V power feed. This...
    view full answer...
  • Replacement 7-Way Plug and Lead to Replace Damaged One that Got Drug While Driving
    You'll want to install a new plug and lead on your trailer to replace the damaged one. Would be a good idea to go with a longer one than you have now. The the adapter you referenced has a 7-way I am fairly certain that's the type of trailer connector you have. Especially since that's very common on camper trailers like you have. We have the part # 277-000143 which is a 7-way that has an 8 foot long lead that would work well.
    view full answer...
  • What is the Wire Gauge Used Inside of Hopkins Heavy-Duty, Coiled Trailer Connector Adapter
    The actual wires inside of the cable for coiled extension # HM47083 are 16 gauge wires.
    view full answer...
  • Should Trailer Batteries for Powering Trailer Jack and Breakaway Kit Be Separate
    You will need a second battery to power the lights and jack you mentioned as the breakaway kit battery would not be strong enough for that and since it has to be fully charged at all times you would not want to have any other circuits draining it. You can charge it and the breakaway battery at the same time though with the same charge wire from your junction box.
    view full answer...
  • Complete Trailer Towing Setup for Trailer with Electric Brakes on 2016 Honda Pilot EX
    It sounds like you're going to need a hitch, wiring, ball mount and hitch ball, 7 way plug and brake controller, and we do have all of those parts you're looking for. To start, for a hitch I recommend using the Curt # C13146 you were looking at since Curt hitches have a durable powder coating that will help ensure that the hitch holds up over time. For wiring, I recommend using the Tekonsha # 118286 since it's the easiest to install wiring harness. This is a plug and play installation,...
    view full answer...
  • Recommended 7-Way To 6-Way Trailer Connection
    For a 7-Way to 6-Way, I recommend the Hopkins Heavy-Duty, Coiled Trailer Connector Adapter - 7-Way to 6-Pole Round - Center Pin Brake # HM47085 or the Hopkins Heavy-Duty, Coiled Trailer Connector Adapter - 7-Way to 6-Pole Round - Center Pin 12V Power # HM47083. The difference between these adapters is where the functions are connected on the 6 way. You will want to make sure your trailer matches the functions correctly. I've attached an article to help. Most 6 way connections will have...
    view full answer...
  • Converting A 6-Pole Trailer to 7-Pole Tow Vehicle Connection
    The Hopkins Adapter 7-Pole to 6-Pole # 47549 plugs into a vehicle side 7-way socket and converts that connector format to a 6-way round-pin type. If you think you will need some length for your connection, # HM47083 is an alternative that does the same thing but includes a coiled cable that is 3-feet long when stretched fully while the # 47549 is just the adapter portion without the extension cable. 47549 can be changed to allow a different function - trailer brakes - to be carried on...
    view full answer...
  • Available 7-Way to 6-Pole Wiring Adapters
    We offer many types of wiring adapters that can be used to join a tow vehicle with one type of wiring to a trailer with another type. You can search all such items using the page I linked for you. Click on the type of vehicle connector you have (7-way blade-style, for instance) and one the type of trailer connector (6-pole) to then see all items that will work to join them, like Hopkins Endurance # HM47053 and # HM47085. Do note that 6-pole connectors can be configured in two ways;...
    view full answer...
  • Replacement 6-Way to 7-Way Coiled RV Connector for Flat Towing
    There is a standard wire color to function relation for trailer connectors which I have attached for you but you will want you test each of the wires with a circuit tester like part # 40376 to be sure you are making the correct connections. The 7-Way Round RV Style Trailer Connector part # A7WCB can be used to replace the 6-way on your coiled connector but a better option for you would be to replace the entire harness using the Hopkins Heavy-Duty Coiled Trailer Connector Adapter part #...
    view full answer...
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  • Available Wiring Adapters to Join Vehicle 7-Way to Trailer 6-Way Round Connector
    We offer several trailer wiring adapters that can convert a 7-way blade connector on the vehicle to a 6-way round pin connector on the trailer. You can see all of these on the linked page. These include solid adapters like # HM47570 as well as cabled types like # HM47053 and # HM47083. I recommend a cabled adapter since it will provide strain relief and make it easier to do the connections. You need to note that a 6-way can be configured in either of two ways. Please refer to the...
    view full answer...
  • Connecting 7-Way on Tow Vehicle to 6-Way on Trailer
    If you are just needing to connect the 7-Way on your tow vehicle to the 6-Way on your trailer, I recommend using the Hopkins 7-Way to 6-Pole Adapter # HM47085 or # HM47083. These two adapters differ only in what the center pin is used for. If the center pin on your trailer side connector is for the electric brake signal, you will use # HM47085. If the center pin on the trailer connector is for 12-volt power, you will instead use # HM47083. One end of the adapter will plug into the...
    view full answer...
  • 7-Way to 6-Pole Adapter with Center Pin 12 Volt Power
    The Hopkins 7-Way to 6-Pole adapter # HM47053 only comes with a center pole brake configuration but we have # HM47083 that is set up for center pin 12 volt power. But it is 3 feet long. Another option is to use # BX88206 and just take apart the connectors and swap the 12 volt and brake output wires on one end.
    view full answer...
  • Recommended 7-Way to 6-Pole Adaper with 12V Center Pin
    The round 6-Way end of the Hopkins Endurance Flex-Coil Trailer Connector Adapter # HM47053 referenced in your question does feature a center pin but it is wired for the electric brake signal. If you need the center pin on the 6-Way to be wired for 12 volt power, I instead recommend the Hopkins # HM47083. This heavy-duty, coiled cable adapter can be stretched to 3 feet in length and will allow you to connect the 7-Way on your RV to the 6-Way connector on your towed vehicle or trailer.
    view full answer...

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