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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 800-298-8924 for expert service.
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  • Reviews (63)
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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


Customer Reviews

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

Average Customer Rating:  4.7 out of 5 stars   (63 Customer Reviews)


- 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. 871856



- 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 785163



- 47549
by:

Appears to work well adapting a 7 pin motor home to a 6 pin magnetic light system. 778956



- 47549
by:

Added the gooseneck trailer plug in bed and I wanted to be compatible with new and old style plugs. Adapor worked great. 767720



- 47549
by:

These work as they should. 727868



- 47549
by:

Worked perfectly. Was delivered on quickly. The website worked flawlessly. 718785



- 47549
by:

This product worked perfect to upgrade my trailer to my newer model wiring system on my tundra 711767



- 47549
by:

The product was good, however it doesn't fit into my 7-way plug. Something is not aligned right. 700303



- 47549
by:

good value 607175



- 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. 600691


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

64953

- 47549
by:

Good quality product. Easy to change pin configuration. Great replacement for worn out adapter. Received product in just a few days. 568484



- 47549
by:

Plugged it in and worked from the get g o!!!! 567030



- 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 564152



- 47549
by:

Good quality adapter. Well made. 550818



- 47549
by:

Excellent quality and price. 521753



- 47549
by:

great 492098



- 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. 474509



- 47549
by:

Product, and delivery was excellent. I have already recommended your site to a relative.. 462566



- 47549
by:

Great service. Very quick for delivery. Highly recommend. 447487



- 47549
by:

First time user and am very pleased with the item and delivery time. 443228



- 47549
by:

Works very well 433463



- 47549
by:

Works great 433073



- 47549
by:

Works great, quick shipping and at a good price 412870



- 47549
by:

Excellent product and excellent service. 411275



- 47549
by:

As always orders was processed, shipped. and delivered without any problems. Very timely. Thanks etrailer! 407010


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Ask the Experts about this Hopkins Wiring

  • 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...
    view full answer...
  • 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.
    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...
  • 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...
    view full answer...
  • 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.
    view full answer...
  • 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...
    view full answer...
  • 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....
    view full answer...
  • 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....
    view full answer...
  • 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...
    view full answer...
  • 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...
  • 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 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...
    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...
  • 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...
    view full answer...
  • 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...
  • Troubleshooting New Wiring on Trailer Causing Right Turn Signal to Activate All Trailer Lights
    Since the issue didn't start until you swapped out the 4-Way on your trailer it would seem that the problem is on the trailer end, but normally this doesn't translate over to the vehicle. What could be going on though is that you have a bad ground on the trailer which is causing backfeed on your vehicle side of things. Checking the connectors themselves to make sure they are clean is always the first step. Using some dielectric grease like part # 11755 can help protect and prevent future...
    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...
    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...
    view full answer...
  • 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...
    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...
  • 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...
  • 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...
  • 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...
  • 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...
  • Troubleshooting Trailer Wiring Replacement with 6-Way Where Trailer Brakes Lock Up After
    With 6-way trailer wiring there is two very common wiring pin-outs used and the only difference is that the 12 volt accessory circuit and the brake output circuits are swapped. Whenever we hear about 6-way wiring and brakes locking up the issue is always related to the wiring being opposite. So what you need to do is swap the brake output and 12 volt accessory circuits and you'd be set.
    view full answer...
  • Gooseneck Trailer Running Lights Stay On All the Time When Connected to Truck
    The likely culprit is a dirty or corroded connector on either the trailer or the truck. Make sure each is clean and free of corrosion inside and out. Corrosion could be causing a short between the running light circuit and the 12 volt circuit in the trailer connector. If that does not solve the issue then make sure the circuit for running lights on the truck side is in the 11 oclock position if looking at the pins. And on the trailer side make sure the running light wire is in the 1...
    view full answer...

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Info for this part was:

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