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Hopkins Trailer Connector Adapter - 6-Pole Round to 6-Pole Square

Hopkins Trailer Connector Adapter - 6-Pole Round to 6-Pole Square

Item # HM47415
Our Price: $16.73
You Save: 42%
Trailer Wiring
Shipping Weight: 0.32 lbs
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This adapter plugs quickly and easily into your 6-way round, vehicle-end connector to convert it for use with a 6-way square, trailer-end connector. Flexible wire between plugs provides a wide range of motion to ease installation. Great Prices for the best trailer wiring from Hopkins. Hopkins Trailer Connector Adapter - 6-Pole Round to 6-Pole Square part number HM47415 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (17)
  • Q & A (0)
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Hopkins Trailer Wiring - HM47415

  • Wiring Adapters
  • Single-Function Adapter
  • 6 Square
  • Plug and Lead
  • 6 Round
  • Hopkins

This adapter plugs quickly and easily into your 6-way round, vehicle-end connector to convert it for use with a 6-way square, trailer-end connector. Flexible wire between plugs provides a wide range of motion to ease installation.


  • Adapter converts your 6-pole round, vehicle-end connector to a 6-pole square connector
  • Flexible wire between plugs provides extra reach and wide range of motion
    • Increases installation options
  • Die-cast metal housing on 6-pole round plug ensures durability
  • Corrosion-resistant terminals
  • Pull grips make it easy to install and remove the plug


  • Overall length: 10"
  • Cord length: 6"
  • Wire gauge: 16
  • 90-Day limited warranty

This adapter allows the 6-way round, vehicle-end connector to work with the 6-way square, trailer-end connector on the right.

6-Way Round, Vehicle-End Connector6-Way Square, Trailer-End Connector

47415 Hopkins Trailer Connector Adapter - 6-Pole Round to 6-Pole Square

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Hopkins Trailer Connector Adapter - 6-Pole Round to 6-Pole Square - HM47415

Average Customer Rating:  4.8 out of 5 stars   (17 Customer Reviews)

This adapter plugs quickly and easily into your 6-way round, vehicle-end connector to convert it for use with a 6-way square, trailer-end connector. Flexible wire between plugs provides a wide range of motion to ease installation.


Exactly as described,And delivered on schedule,Will definitely do business with them again!


I was in need of a wiring connector to attach my Kompact kamp motorcycle trailer,
having a 6 pin square connection, to my Harley Davidson Tri glide, having a 7 pin
round connection. I happened upon the web site, did a search and
easily found the connector I needed, so I placed the order. The following day, I
received a personal phone call from a staff member at etrailer letting me know the
item I ordered was on back order and would be shipped as soon as possible. Within
a week, I received a email letting me know my order had been shipped, which I
received when expected. The following day, I received a follow-up email from etrailer
stating they had been notified my order was delivered and provided contact information
should I have any questions or concerns.

Long story short, AWESOME Customer Care, and I'm now riding with trailer in tow.

Chuck from Ocala Florida


Clear directions and fit my 2011 Toyota Sienna perfectly


Perfect needed this for multiple tow vehicles


Found what I needed, easy to order



It’s been a year and my 6 pole round trailer wire connector has worked flawlessly! If you need any type of trailer supplies, is the place to go!


Product works great, however it did take quite a few extra days to get here.


Thanks so much for your help and even saving me money .great .no wonderful customer service who went out of their way to help me out. Seriously was a great experience thank u.


the part fix perfect. Rebecca was of great help. both ladies were two of the best i've dealt with. thanks, George




Hi received my items quickly and service was great!


Exactly what I wanted and great deliver y!


this is just what I needed thanks so much only have a flip phone so no pics


item was as advertised fast shipping; no problems


Great service and delivery


Haven’t used it but it looks good


Great product. Good price



See what our Experts say about this Hopkins Trailer Wiring

  • Could Hopkins 6-Way Square to 6-Way Round Adapter Fit Viking Pop Up Camper
    If your Viking pop up trailer has a 6-way square connector yes, the Hopkins 6-Way Square to 6-Way round # HM47415 would fit and work well. I attached a review video for this adapter for you to check out as well.
    view full answer...
  • 6 Pin Round Trailer Connector Adapter to 6-Pin Rectangle Connector on 2003 Skamper Popup Camper
    It sounds like you are looking for the Hopkins Trailer Connector Adapter - 6-Pole Round to 6-Pole Square # HM47415. This adapter has an overall length of 10 inches.
    view full answer...
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  • What Would be Needed for Ford F-150 to Connect to 6-Way to 4-Way Square HM47415
    A Ford F-150 is most likely not going to have a 6-way like what the part # HM47415 is designed to fit. You'd also need to use a 7-way to 6-way part # 47549 since your truck would have a 7-way installed on it.
    view full answer...
  • How to Create an Adapter for a Vehicle's 6-Way Round to a Trailer's 5-Way Flat
    We do have a way for you to connect your 6-way round and 5-way flat. We don't have a direct adapter, but a combination of two with a bit of splicing will do the trick. First, use part # HM47415 to convert your 6-way round into a 6-way square. Then, remove the 6-square from that and attach part # HM47900 to give you the 5-way flat connection point. I've linked to a help article of wiring to help you with this along with video reviews of both of the adapters. You won't be using the 12V...
    view full answer...
  • Creating a 6-Way Round to 5-Way Flat Trailer Wiring Adapter
    We do not carry a 6-way to 5-way adapter, so I recommend making one using the Hopkins Trailer Connector Adapter - 6-Pole Round to 6-Pole Square # HM47415 and removing the 6-pole square to replace with the Hopkins Endurance 5-Way Flat Trailer Connector - Vehicle End - Ergonomic Design # HM47900. You won't use the 12V feature so I recommend removing that wire from the 6-way so it doesn't draw any power. I've attached a wiring article to help with the connections.
    view full answer...
  • Fit of Hopkins 6-way Square to 6-Way Adapter # HM47415 on Coleman Pop-Up Camper
    Coleman used their own proprietary 6-way square connector, and from what I understand, it was only available from them. My contact at Hopkins tells me that the # HM47415 you referred to is different enough that it will not work. Since Coleman no longer manufactures campers, I am not sure where you would get an adapter. Your best bet would be to remove the existing connector on the camper and install a 6-way female connector like part # PK11604 (or whichever plug would be compatible with...
    view full answer...
  • How to Pick Out Replacement Roof Vent Lid for 2005 National Sea Breeze
    Most likely we have what you are looking for but you will need to first determine what vent you have on your trailer. The best way to find the correct replacement vent cover for your cargo trailer is to measure the vent. Most standard vents are 14-1/4 by 14-1/4 inches wide, 14 x 14 inches wide or 13 x 14 inches wide. Next if the manufacturer name is on the vent that will help. Finally, you will need to look closely at the hinged portion of the vent. If there is a rolled metal hinge attached...
    view full answer...
  • How to Connect a Trailer with 6-Pole to Vehicle with 4-Flat
    In order to tow a trailer with what I assume is a 6-pole round trailer connector on your 2010 Subaru Forester with a 4-flat trailer connector all you will need is the 6-Way and 4-Way Flat part # ETBC6. This will give you everything to attach the wiring from the trailer to the tow vehicle. The 6-pole trailer connector on your trailer will allow for you to add brakes to the trailer.
    view full answer...
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  • At Least 3 Foot Long 6-Round to 6-Square Trailer Adapter
    I have an option for you but we don't carry a longer version of the Hopkins 6-round to 6-square adapter, part # HM47415. Instead you can make your own. Use Hopkins part # 37995 which has both sides of the 6-square and wire the end you need to the Bargman 6-round # 50-61-104. The Bargman is 4 feet long and the Hopkins is just under 12 inches so this will be plenty long enough for you.
    view full answer...
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  • Wiring Adapter for 6-Way Round Connector to 6-Way Square Jayco Trailer Connector
    The only 6-Way square to 6-Way round wiring adapter that we offer is the Hopkins Trailer Connector Adapter # HM47415. However, this adapter only measures 10 inches long overall. These square connectors are popular on older Jayco trailers, but are not common in the industry so there are very few adapters made for this style connector. For an adapter that measures 24 inches, you will want to use a 6-Way Square Connector # 37995 wired to a 6-Way Round Connector with Cable # 50-61-104. The...
    view full answer...
  • Parts Needed to Match Goldwing Motorcycle and Trailer Wiring Together
    I recommend replacing both connectors with 7-Way Blade-Style connectors so they not only match with each other, but they also will match easier with other vehicles and trailers in the future. For your bike you need the part # PK11898 and then you need part # H20044 for your trailer. Just make sure the functions and pins all match and you'll be good to go!
    view full answer...
  • Availability of Trailer Wiring Adapters to Convert from 6-Pin Round Connector Format
    I linked our main page for all trailer wiring adapters that convert from a 6-round-pin format to others. We do have a 6-round to 6-square adapter, part # HM47415, but not one that converts a 6-way round pin to a 5- or 6-flat. 6-flat is not a common format for tow vehicle and trailers in the U.S. For the long run you will be better off avoiding use of an adapter and hardwiring in the connector you need. Adapters are convenient but they also introduce more connection points and that means...
    view full answer...
  • Wiring Adapter for 6-Pin Square Plug on Truck Bed Camper to 7-Way on 2014 GMC Sierra 1500
    Ok, we do have what you need, which are a couple adapters, one for the square 6-pin to make it round, and the other to go from the 6-way to your truck's 7-way. First, for your 2014 GMC Sierra 1500, if you need a 7-way in the bed, you can add the 5th Wheel/Gooseneck 90-Degree Wiring Harness with 7-Pole Plug # 50-97-410. Then, to connect your camper's 6-way, what you'll need are the two following adapters: - Hopkins Trailer Connector Adapter - 6-Pole Round to 6-Pole Square # HM47415 -...
    view full answer...
    Image 1 for
  • How To Change a Vehicle 7-Way Connector to a 6-Way Vehicle Connector
    If you are trying to change the 7-way connector on your vehicle to a 6-way round connector you can use the Hopkins Adapter, part # 47549. This adapter will plug into your existing 7-Way and give you a 6-Way round connector. The center pin of the 6-Way side of this adapter is setup as the 12 volt power lead, but it can be changed if you need the center pin wired as a brake lead. If you were needing to change to a 6-Way square connector, you can use the above # 47549 adapter and add the...
    view full answer...
  • Availability Of A 6-Way Square Male To 6-Way Round Female Adapter
    I have an option for you, but there is not an adapter made to go between your 6-way square female end on your California Side Car and the round 6-way on your trailer. One option would be to use the Curt 6-Pole Square Trailer Wiring Connector Loop # C58034 and cut off the female end and install the Pollak 6-Pole, Round Pin # PK12720. This will require you to use a circuit tester like the # PTW2993 to confirm the functions of your 6-way square connector and match them to the functions of...
    view full answer...
  • Making a 6-Way Square Adapter for an Artic Fox Camper
    We do have 6-Pole Square Trailer Wiring Connector Kit (Car and Trailer Ends) # 37995 that you can use for your Arctic Fox camper. This is both the male and female ends. But the wires on them are 18 gauge. You could replace the ground and power wires with 10 gauge wire if you wanted to though it make take a little persuasion to get the 10 gauge wire to mate up to the pins in the connectors. We sell 10 gauge wire # 10-1-1 by the foot or you can get # 10-2-1, also sold by the foot, which is...
    view full answer...
    Image 1 for
  • Converting a Trailer with a 6 Square Connector to a 4-Way Flat Trailer Connector
    If the trailer is a Jayco trailer, you will just need the 4-way to 6-way round adapter # A10-6034VP and then the 6-wayd round to 6-way square adapter # HM47415, to go from the 4-Way flat on the 2006 Honda Odyssey to the 6 square on the trailer. If the trailer is a different brand, this adapter will not work. Instead, you will need to convert one of the connectors to be compatible with the other. If you convert the trailer, the other 2 functions on it will be lost unless you converted it...
    view full answer...
  • Availability of 6-Way Round to 4-Way Round
    There isn't a 6-Way round to 4-Way round adapter that we carry but we have the parts to make one. First you'll need the correct 6-way with part # PK11604. Then you would need a 4-Way round vehicle end connector, # PK11410. Then all you would need is about 1 foot of bonded 4-wire, # 16-4B-1. You would just need to insert the wires into the back of each connector according to how the vehicle side 6-Way is wired and for what your trailer requires (since there isn't a standard for a 4-Way...
    view full answer...
  • Wiring 4-Way Connector on Ford Truck to 6-Way Connector on Camper Trailer
    The two extra wires on your trailer supply power from the vehicle to actuate the electric brakes and any electrical accessories you might have on the camper. The blue wire typically provides power to the brakes, and the red wire is for the 12 Volt accessory circuit. You have several different options, depending on the trailer and the connector that is currently on it. If you have a Jayco trailer, we offer a 4 Way Flat to 6 Way Round adapter # A10-6034VP and then a 6-way round to 6-way...
    view full answer...
  • Adapting a 7-Way Trailer Connector on a 2010 Chevy Suburban to a 6-Way Square Jayco Connector
    I do have a solution for you but it a little unorthodox. First, you will need to use a 7-Way to 4-Way adapter like # PK12716. With the 7-Way now converter down to a 4-way, you can use the 4-Way to 6-Way round adapter # A10-6034VP and then use the 6 pole round to 6 pole square adapter, # HM47415. To make it more like one large adapter, you can use dielectric grease, # 11755, between the connections on the adapters and then use electrical tape to wrap up where they are joined. This will...
    view full answer...
  • Troubleshooting 4-way Wiring on a 2001 Ford F-150 and 6-way Wiring on a 1989 Jayco J Series Trailer
    I would suggest checking all the fuses on your vehicle and make sure they are in proper working order. Then using a circuit tester like part # PTW2993 to test the signal at the truck 4-way and make sure that the trailer is getting the proper signal when the functions are activated. If you are not getting the proper signal from the 4-way a replacement kit for your truck would be Curt # C55256. This wiring harness is a T-one style that plugs directly into your OEM wiring harness. If your...
    view full answer...
    Image 1 for
  • Recommendations for Converting a Pop Up Trailer 6-Way to a 4-Way
    If your trailer is a Jayco you could pretty easily use a 4-way to 6-way round adapter # A10-6034VP and the 6-way round to 6-way square adapter # HM47415. If the brand of your trailer is different then your best bet would be to cut off the 6-way of the trailer and wire up a 4-way to the circuits. For a 4-way you could use a Wesbar 4-Pole Connector # W787264. You will need to determine what the wiring of your trailer is and then wire those circuits to the 4-way accordingly. You could use...
    view full answer...

Do you have a question about this Trailer Wiring?

Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Tyler C
Written by:
Tyler C
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C

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