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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
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Shipping Weight: 0.32 lbs
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Wiring HM47415 - Plug and Lead - Hopkins
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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. Lowest Prices for the best wiring from Hopkins. Hopkins Trailer Connector Adapter - 6-Pole Round to 6-Pole Square part number HM47415 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
  • All Info
  • Reviews (14)
  • Q & A (14)
  • Photos
  • Why etrailer?

Hopkins 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 Reviews

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

Average Customer Rating:  4.7 out of 5 stars   (14 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.

- HM47415

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 etrailer.com 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

- HM47415

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.

- HM47415

Found what I needed, easy to order

- HM47415

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

- HM47415

Perfect needed this for multiple tow ve hicles

- HM47415

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

- HM47415

Hi received my items quickly and service was great!

- HM47415

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

- HM47415

Exactly what I wanted and great deliver y!

- HM47415

- HM47415

item was as advertised fast shipping; no problems

- HM47415

Great service and delivery

- HM47415

Haven’t used it but it looks good

- HM47415

Great product. Good price


Ask the Experts about this Hopkins Wiring

  • 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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  • 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
  • 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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  • 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...
  • 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....
    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...
  • 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...
    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 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...
    view full answer...
  • 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 # A10-7276VP since your truck would have a 7-way installed on it.
    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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  • 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...
    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
  • 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...

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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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