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Adapter 7-Pole to 6-Pole - Universal

Adapter 7-Pole to 6-Pole - Universal

Item # 47549
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Hopkins Wiring - 47549
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Lowest Prices for the best wiring from Hopkins. Adapter 7-Pole to 6-Pole - Universal part number 47549 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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Hopkins Wiring - 47549

  • Wiring Adapters
  • Single-Function Adapter
  • 6 Round
  • Plug Only
  • Hopkins
  • 7 Blade


Adapter converts your 7-pole plug on the vehicle down to 6-pole plug to fit your trailer's connector.


Note: Center pin is set-up as the hot lead but can easily be changed to work with trailers that have the center pin wired as the brake.



47545B Adapter 7-Pole to 6- Pole - Universal




California residents: click here


Video of Adapter 7-Pole to 6-Pole - Universal

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




Video Transcript for Review of Hopkins 7-Way Blade to 6-Way Round Pin Wiring Adapter - 47549

Jeff: Hello everybody, this is Jeff at etrailer.com. Today we're going to take a look at this Hopkins seven way blade to six way round adapter. Now this adapter will plug into your vehicle's side seven way blade socket, and it converts your connector format to a six way round pin type. You can see it has this nice tethered dust cap on it, then when it's not plugged in, you can protect the terminals.Now, one note on this adapter, the center pin is set up as the more common 12 volt hot lead, but it can easily be changed to work with trailers and will have the center pin wired as the brake. And to do that, what you'll first want to do is you'll need a circuit tester to test the pins in your six way connector. Basically just ground the alligator clip to the vehicle chassis, and then touch the test light to the center pin on your six way connector.

If the light and the tester lights up, then that means the center pin is hot so it's wired for 12 volts. So you can use it as-is.If the center pin is for the brakes, it'll only have power when your brake pedal is applied or when the manual brake lever on the brake controller is activated. So if it does work that way, you need to switch it. You can easily do that. What you'll want to do if you need to switch it, all you have to do is switch the blue and the black wires that are inside this adapter.

So what you'll do is basically just remove this tethered dust cap, and then if you'll notice right here, there's two screws here and then two right up here. If you just unscrew all four of those screws, this'll split in half, in the inside you'll be able to see where the black wire is attached to the center pin. And then you also see a blue wire, all you have to do is just switch the black and the blue wire, attach them back down, put your screws in. Go ahead and put your dust cap back on, and just like that you're ready to go. So it's pretty easy to switch between the two.But that should do it for the review on the Hopkins seven way blade to six way round adapter..


Customer Reviews

Adapter 7-Pole to 6-Pole - Universal - 47549

Average Customer Rating:  4.8 out of 5 stars   (68 Customer Reviews)


- 47549
by:

Added the gooseneck trailer plug in bed and I wanted to be compatible with new and old style plugs. Adapor worked great.


Comments
Excellent
Grant - 03/20/2021


- 47549
by:

We had been having trouble with our other adapters, no brakes or intermittent brakes. This adapter fits better than any of the others ever have, great connection and is holding tight. I will be picking up some more of these. The only downside to me was they came on the value shipping which is rather delayed for us and I would rather pay to get it here more quickly. I was needing it and it was several days getting here. We ship a lot and I know shipping directly with USPS goes faster than that and is not expensive.


Comments
It works just like new! No complaints at all. I noticed another review stated theirs is not fitting, sometimes the pins can get a little distorted on the vehicle side and can be easily straightened.
Jo A - 01/28/2020



- 47549
by:

I unplugged the broken plug-in trailer part from my truck and attached the new part that I bought from your company. It actually fit in the same holes which I bolted back on. Plugged it back in to my truck, hooked up my horse trailer and all my lights worked!!!! I didn’t replace the male end on the horse trailer and it all matched up perfectly. Very easy to install



- 47549
by:

Love this cause, I just don’t have the time to re- wire the bucket truck so it’s nice to just plug this in an I can hook are chipper up !!!!



- 47549
by:

Bought this adapter to use pulling our horse trailer. It's worked great. Cathy was very helpful when I called with questions prior to purchase.


Comments
The trailer light adapter has worked just fine. I only use it periodically, but when I have, done the job!!! Thanks for checking on it!
KP - 11/15/2017



- 47549
by:

Looks good.



- 47549
by:

This was just the adapter I was looking for but no one had enough information to determine the brake signal wiring for sure - except for etrailer. Their technical information is always way ahead of the others. The price was great as well. Delivery was outstanding. They will get all of my business for trailer supplies.



- 47549
by:

One year ago I called etrailer to order parts. The customer service rep was very knowledgeable and helpful. Thank goodness for knowledgeable people. Makes my life easier. I do think etrailer has a good system in place and a desire to excell and be good at what they do. The products still work fine. Thank goodness- since etrailer doesn't do the manufacturing. Thanks etrailer.



- 47549
by:



- 47549
by:

After using this for a year everything has been good. It stays in place, doesn't get loose or loose connection. Works great.



- 47549
by:

Very good product, fit both ends well. the 6 point side that is for a trailer was just a tad loose but alittle electrical tape for extra insurance works fine.



- 47549
by:

Appears to work well adapting a 7 pin motor home to a 6 pin magnetic light system.



- 47549
by:

Works as designed. It's wired for the six pin round to have the center pin as the aux, and the electric brake on the outer ring, which is fine. I note the advertisement says these two pins can easily be swapped, but there was nothing in the instructions which indicated how that might be done.



- 47549
by:

The product was good, however it doesn't fit into my 7-way plug. Something is not aligned right.



- 47549
by:



- 47549
by:

This product worked perfect to upgrade my trailer to my newer model wiring system on my tundra



- 47549
by:

Great product!



- 47549
by:

Worked great, all lights worked. Want to thank Diana for her help ordering this product and shipping it to us on time for us to go camping. Thanks again



- 47549
by:

Was easy to change 12v and electric brake wire internally for trailers with the two opposite of each other causing brakes to lock.



- 47549
by:

Plugged it in and worked from the get g o!!!!



- 47549
by:

Works great, quick shipping and at a good price



- 47549
by:

Works great. Does what its supposed to do - converts a 6 pin round plug on a trailer to a 7 pole jack on the truck.



- 47549
by:

Good quality product. Easy to change pin configuration. Great replacement for worn out adapter. Received product in just a few days.



- 47549
by:

Great products, fast delivery and good prices. They had everything in stock including the Ford specific brake cable and 7 to 6 pole adapter. Ordered last Monday. Received on Thursday. Put every in this weeked and am using it today (one week after order placed.



- 47549
by:

I needed another product that I couldn't find locally and also needed this so I ordered it from etrailer also. Postage cheaper than gas to go find one and etrailer price was very resonable. Nice people, great commication, and super fast shipping.


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Ask the Experts about this Hopkins Wiring

  • Recommended 6-Pole Round to 7-Blade Trailer Connector Adapter
    It sound like you might be looking for either the Adapter 7-Pole to 6-Pole part # 47549 or the Adapter 6-Pole to 7-Pole Trailer Wiring Adapter part # 47435. If this is not it please send some photos of the trailer connectors you have.
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  • Trailer Brakes Lock Up When Using a 7-Way to 6-Way Adapter
    As you probably know there are two ways a 6-Way trailer connector can be wired. One uses the center pin as the 12-volt power accessory feed, the other uses the center pin for the brake output circuit. If the adapter is one way but the trailer is the other way that is when this situation occurs. Which pin are the brakes wired to? If the trailer brakes lock up immediately when plugged in then they are somehow getting 12 volt constant power. To determine the functions of the adapter you...
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  • Installation of 6-Way Round on Camper to 7-Way Blade on 2009 Chevrolet Silverado
    There are two accepted ways of wiring a 6-way round connector. One uses the center pin as the 12-volt power accessory feed, the other uses the center pin for the brake output circuit (reverse lights). The Hopkins 7 Pole to 6 Pole Adapter, part # 47549, that you have referenced comes with the center pin wired up as the 12-volt lead, but it can easily be taken apart and rewired for the center pin to be for the reverse light circuit. To see a diagram showing how a 6-way connector is...
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  • Recommendation for a 4-Way Flat to 5-Way Flat Trailer Connector Adapter
    The Lexus 300 and Nissan Pathfinder use different wiring harnesses, but if they both have 4-Way flat trailer connectors, they will be pinned the same (function the same). The 5-Way trailer side connector will have an extra function at the pin furthest from the covered ground pin. This function is typically used on surge couplers that have an electric lockout feature. The corresponding pin on the vehicle side would need to be connected to the reverse light circuit for this feature to function....
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  • Replacing 6-Way on Trailer With 7-Way Connector
    Since wire color codes are NOT universal, we always recommend wiring by function, rather than wire color. If you look at the Trailer Wiring FAQ article I have linked you to, you can see some diagrams showing the proper way to wire a vehicle and trailer side 7-way trailer connector. If can you open up the existing 6-way connector on your trailer, take the housing apart and look at the terminals the wires attach to. In many cases, they will be labeled like what is shown in the FAQ article....
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    Image 1 for
  • Trailer Connected to 2012 Ram 2500 Causes Truck Reverse Lights to Come On
    The center pin on your 2012 Ram 2500 is probably wired to the reverse lights. The center pin on the trailer is probably wired to a trailer mounted battery or breakaway system battery and it is back feeding to the trucks reverse lights. The trailer could have more than 1 battery on it. What you will need to do is figure out what is wired to that center pin on the trailer side. I have included a picture that shows the pin out functions of a vehicle side and trailer side 7-Way that...
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    Image 1 for
  • Re-Wiring 7-Way RV Style Trailer Side Wiring Connector
    I can certainly help you re-wire your trailer-side 7-Way connector. Thanks for the photo of your connector, it helped verify the style connector and which wires you have! The attached wiring diagram will help you in attaching the wires back to your connector. Based on your photo, the only wire you don't have is the Blue wire that would be for the Brake Controller Output/trailer brakes signal. The Green wire should carry the Tail and Running light circuit, Black is 12V power, Yellow is...
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    Image 1 for Image 2 for
  • Testing the Center Pin On a 6-Way Trailer Connector
    You will need to use a circuit tester, item # PTW2992 if needed, to test the pins in the 6-Way connector at the rear of your vehicle. Ground the alligator clip to the vehicle chassis and touch the test light to the center pin. If the light in the tester lights then the center pin is hot, 12 volts. If the center pin is for brakes it will only have power when the brake pedal is applied or when the manual brake lever on the brake controller is activated. In most cases, the center pin...
    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...
  • Trailer Wiring Has 5-Wires White, Yellow, Green, and 2 Browns
    If it was a 4-pin connector with 5 wires then it is called a wishbone harness and would have 2 wires attached to the running light pin so you have one wire for each side of the trailer. Typically, on a 4-Way, the white wire is ground, brown is running lights, yellow is left turn/brake lights, and green is right turn and brake lights. On a wishbone 4-Way you would have a ground wire and then you usually see a brown wire with yellow stripe for the left side running lights and a brown wire...
    view full answer...
  • Troubleshooting Right Side Turn Signal Not Working On Trailer
    This sounds like a ground problem on the right side. The turn signal not working makes sense because with the brake lights, there is a constant signal coming through which is enough to make the lights illuminate on both sides like they should. But the on/off of a turn signal does not offer enough consistent voltage and makes the problem apparent. On the vehicle, check to see if there is a turn signal fuse for the tow package wiring that may have blown. You can use your owners manual...
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  • Troubleshooting Brake Controller Making Noise And Causing Brake Lights To Blink
    To help troubleshoot your brake controller, I have attached a helpful article that explains some of the common problems that can occur with a brake controller along with some methods that can be used to correct them. I recommend using a circuit tester like part # 40376. For a hard wire installation you will want to test each of the wires and make certain they are installed properly. Any connections that are not secured properly can cause a number of problems. It is equally important...
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  • Trailer Brakes Lock Up When Using the 7 Pole to 6 Pole Adapter # 47549
    The reason your brakes are locking up when you use the 7 Pole to 6 Pole Adapter, # 47549, is because there are two ways that 6-way round trailer connectors can be wired, as you may have already discovered. The difference is the pin for the electric brake output and the 12 volt power. It sounds like the 6-way connector on your trailer uses the center pin for the electric brakes. This adapter uses the center pin for 12 volt power. As you have noticed, this will apply 12 volt power to...
    view full answer...
  • Troubleshooting Travel Trailer Right Blinker Not Working
    There are a number of possible reasons your right-side trailer turn signal is not working. One quick visual inspection of the inside and outside of both trailer connectors can help you ensure that they are free of any damage or corrosion that could be causing the issue. If a connector is damaged, it is best to be replaced. If there is corrosion, you can try cleaning the affected spot on the connector with a wire brush To determine where the issue is originating, we will begin at your...
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  • Trailer Right Turn Signal and Brake Light Not Working
    The right turn signal/brake light not working on a trailer could be the result of a bad ground, broken wire, corroded trailer connector or a blown fuse or relay on the tow vehicle's tow package wiring. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces. The light grounds should also be attached to clean and corrosion free bare metal...
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  • Trailer Brakes Immediately Lock When Trailer is Plugged In
    There are two accepted ways of wiring a 6-way trailer connector. One uses the center pin as the 12-volt power accessory feed, the other uses the center pin for the brake output circuit. It sounds as if your trailer and adapter are wired differently, locking up the brakes as soon as the trailer is plugged in. The 7 to 6-way adapter, part # 47549 comes with the center pin wired up as the 12-volt lead, but it can easily be taken apart and rewired. See the picture to the right for typical...
    view full answer...
    Image 1 for
  • Troubleshooting Bent Pin on Trailer Side 7-Way Connector
    It does look like one of the pins on your existing 7-Way may have been bent back into the connector. This isn't too uncommon and it would definitely cause the intermittent connection issues you have been having. If you aren't able to bend back the pin in question so that it can make good contact with the vehicle-side connector then your best option is indeed to simply replace the 7-Way. For this the Pollak # PK12706 will work well. You will just need to cut off your existing connector...
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    Image 1 for Image 2 for
  • Trailer Brakes Lock Up when Connected to Truck with 6-Way Trailer Connector
    This is a common problem with 6-Way trailer connectors. There are 2 ways that a 6-Way can be wired. The center pin will either by for trailer brakes or it will be the 12 volt circuit. On a vehicle side if you are looking at the pins center will either be hot or or brake output and the pin in the 10:00 position will be whichever the center pin is not, So if center is hot then 10:00 will be brake output. All you will need to do is see where the corresponding pins on the trailer side connector...
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  • Why Would Trailer Right Blinker Stop Working When Head Lights are On
    Try improving the connection of the main ground wire of the trailer wiring harness. Make sure it is attached to a clean metal surface. Or you can run all of the trailer wires back to the main ground. This is actually the ideal solution. But you can also check the current grounds for the lights to make sure they are making a solid connection to a clean metal surface. What you described is the classic insufficient ground scenario so finding a way to improve the grounds will fix the problem.
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  • Brakes on Horse Trailer with 6-Way Lock Up When Connected to the 7-Way on Ford F-250
    A 6-Way round pole connector can be wired one of two ways; with the center pole as the 12 volt hot lead, or as the brake. Since the trailer brakes on your horse trailer lock up when plugged into your F-250, it sounds like the 7-way to 6-way adapter that you are using is wired opposite from that of your trailer. This would mean that the center pin on your trailer is the 12V hot lead and the center pin on your adapter is for the brake or vice versa. Either way the brakes are receiving constant...
    view full answer...
    Image 1 for
  • Trailer Brakes Lock Up When Using Hopkins 7 Pole To 6 Pole Adapter # 47549 on 2001 Dodge Truck
    There are two accepted ways of wiring a 6-way connector. One uses the center pin as the 12-volt power accessory feed, the other uses the center pin for the brake output circuit. It sounds as if your vehicle and adapter are wired differently, locking up the brakes as soon as the trailer is plugged in. The Hopkins 7 Pole To 6 Pole Adapter, part # 47549, that you have referenced will allow the center pin to be wired as a 12V lead or a brake lead, whichever is needed to match your trailer....
    view full answer...
  • Recommended 7-way Blade to 6-pole Round Adapter with Hot Lead in Center Pin
    If you have the Hopkins # 47549 that you referred to in your question you should be able to open up the adapter and repin the two wires to swap the function. Since there are two standards of wiring a 6-way in the market they made this feature available to do. If you would prefer to just purchase a 7-way blade to 6 pole adapter that is already prewired for your type of horse trailer you will need the Hopkins # 47525. Another really neat option is the Hopkins # HM47570, this adapter...
    view full answer...
  • Left Turn Signal is Faint on Trailer
    If the left turn signal is faint the problem is very likely a poor ground, as is often the case with these type of funky issues. Check the ground for your left turn signal and verify that the ground area does not have any type of dirt, paint or corrosion built up that may be hampering it. A bad ground is almost always the cause of this issue so it is exactly where you should start and I am guessing this will resolve the issue. I have added a link to a wiring troubleshooting article...
    view full answer...
  • How to Replace a 7-Way Trailer Connector on a 1992 Nuwa Hitchhiker
    I have attached the common wire colors on a 7-way for you below but as not all trailer manufacturers use the same wire colors and they could have been replaced at one point in time so it would be best to test them with a 12 volt battery. Once you attach each wire to the positive side of a battery that circuit should then light up and you will know which color represents which circuit. The other option you have would be to contact the trailer manufacturer with your VIN. I wish I could tell...
    view full answer...
  • Reverse Lights on Dodge Ram 2500 Series Stay On When Trailer is Connected
    The circuit that provides power to the reverse lights should be wired to the center pin on the 7-way trailer connector on your vehicle. It sounds as if you will need to do some troubleshooting to determine the cause of your problem. Check the plug on your trailer for corrosion or damage. If you find any green or white corrosion in any of the sockets on the connector, there is a good chance that the corrosion has spread to the interior of the connector, causing a short or feedback back...
    view full answer...
  • Adding a Brake Controller to a 1996 Ford Ranger
    First, if your 1996 Ford Ranger came with a factory 4-Way trailer connector or you installed an aftermarket 4-Way, you will need to add an # ETBC7, if the trailer has a 7-Way blade style connector, or an # ETBC6, if the trailer has 6 pole connector. If you need to add a 4-Way, you would use # 118325. If you add a trailer connector or it already has one, the signals for the tail lights on the trailer are already converted down to the correct signals. In order to operate the electric brakes...
    view full answer...
  • Troubleshooting Trailer Brake and Turn Signal Lights on Car Trailer Towed by Jeep
    Thank you for providing the photo of your Jeep trailer wiring. We can suggest troubleshooting steps to isolate the problem to either your Jeep wiring, connectors or trailer wiring. First, securely attach the short white ground wire with ring terminal from the 7-way adapter to a clean bare metal surface on the Jeep frame. (Your photo shows this wire is not connected. This could be the problem.) You need to firmly attach all grounds to rust-free unpainted metal surfaces to ensure a good...
    view full answer...
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