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Hopkins Knockout Adapter for 4-Way Flat Trailer Connector

Hopkins Knockout Adapter for 4-Way Flat Trailer Connector

Item # HM47605
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HM47605 - Vehicle End Connector Hopkins Trailer Connectors
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Keep your 4-pole flat trailer connector accessible with this adapter that lets you mount the connector in a 6-way round bracket (sold separately) or in a 1-1/4" diameter hole. Lowest Prices for the best wiring from Hopkins. Hopkins Knockout Adapter for 4-Way Flat Trailer Connector part number HM47605 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (54)
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Hopkins Wiring - HM47605

  • Trailer Connectors
  • Vehicle End Connector
  • 4 Flat
  • Plug Only
  • Hopkins

Keep your 4-pole flat trailer connector accessible with this adapter that lets you mount the connector in a 6-way round bracket (sold separately) or in a 1-1/4" diameter hole.


Features:

  • Adapter plugs into your vehicle's 4-flat trailer connector so that you can mount the connector in a 1-1/4" diameter hole
  • Versatile installation
    • Mounts in a 6-way round bracket (sold separately)
    • Can replace 1 of the vehicle's license plate lights
  • Dust cover keeps out dirt and water
  • Durable PVC construction


47605 Hopkins 4-Pole Flat Knock Out Adapter

Installation Details HM47605 Installation instructions


California residents: click here


Video of Hopkins Knockout Adapter for 4-Way Flat Trailer Connector

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




Video Transcript for Hopkins Wiring - Trailer Connectors - HM47605 Review

Today we'll be reviewing part number HM47605. This is the Hopkins Knockout Adapter for a four-way flat trailer connection. This adapter is going to plug in to your vehicle's four flat trailer connector so that you can mount the connector in an inch and a quarter diameter hole. It's a very versatile installation. This will mount in a six-way round bracket, which is going to be sold separately, part number HM48605. It can also replace one of the vehicle's license plate lights. On this side here we have the dust cover that's going to help keep out dirt and moisture. It simply just fits over the four flat connection, providing a nice tight, secure fit. This is made from a durable PVC construction so it's going to be very strong, very durable and again, that dust catcher's really going to come into play when it comes to keeping out dirt and moisture. That's going to do it for today's review of part number HM47605.

This is the Hopkins Knockout Adapter for a four-way flat trailer connector. .


Customer Reviews

Hopkins Knockout Adapter for 4-Way Flat Trailer Connector - HM47605

Average Customer Rating:  4.7 out of 5 stars   (54 Customer Reviews)

Keep your 4-pole flat trailer connector accessible with this adapter that lets you mount the connector in a 6-way round bracket (sold separately) or in a 1-1/4" diameter hole.

- HM47605
by:

I am very pleased with the products and service provided by etrailer.com. The 4-way Curt trailer hitch wiring connector and Hopkins Adapter for my 2015 Honda Pilot were easy to install with the clear and well illustrated directions. They are performing as advertised with no additional troubleshooting required. The quality suggests that they are durable and will last for at least as long as I own the vehicle. I currently tow boat trailers. The car came with the OEM trailer tow bar (hitch) and basic internal trailer wiring. The etrailer.com parts were just what I needed to complete the package. [I suggest you include a note to install the provided 10A blade fuse in the holder on the S3 harness in the installation instructions]


Comments
I am very happy with your product and expect I will continue to be.
Charlie F - 11/01/2018



- HM47605
by:

Just installed it today 8/21/21 on bumper sure makes it easier to get to I don't have to reach under bumper to hook up



- HM47605
by:

I used this device to tidy up a recent hitch and wiring install on my Volvo wagon. I ran the receptacle out the bottom of the car and just zip tied it to the hitch. It looked OK, but I wanted something cleaner that didn’t involve attaching a bracket to hold the 4-pole connector. After a few minutes of searching I found this device. All I had to do was buy a 1.25” hole saw for my drill and the rest was easy. Drilled through the plastic fascia on the underside of my bumper. I think it looks great! Attached are before/after pics. Another great experience with eTrailer.com!!!



- HM47605
by:

Worried as first because the picture with instruction showed an adapter and I had a curved surface on my GMC Terrain at the mounting point. Worked great and did not een have to take the ld pigtail off.



- HM47605
by:

Exactly what I needed to clean up the installation of my trailer wires on my 1995 Ford F150.



- HM47605
by:

Thanks! Great idea! 1979 Ford F150 4X4



- HM47605
by:

I'm writing from Canada. I ordered the Curt receiver trailer hitch, and customized wiring harness. Although it took a while to get here, the product was exactly as specified, installed quickly with good instructions. One word of advice, use at hoist to install the hitch, laying on the garage floor and tightening the bolts to specs. just about did me in, maybe I'm getting to old. The wiring harness was a breeze to put in with excellent instructions. Good product and service.



- HM47605
by:

It might have fit something, but not my truck bumper. The hole for the license plate light was way bigger than the adapter.



- HM47605
by:

I am always pleased with how etrailer treats my orders. I am angry with myself for ordering the bracket for the socket attachment ( realized that I already had one), but the order was filled the day I would have canceled--so I just let it go.



- HM47605
by:

Installation photos



- HM47605
by:

I added this to my 2002 Ram 1500. I drilled a 1.25" hole in the plastic plate next to the license plate and mounted it there. It was easy to install and makes my wiring harness easy to access. Good quality.



- HM47605
by:

Decided for now not to install product I changed my mind and wanted to stay with the clean rear bumper cover with the Ecco hitch hidden trailer hitch.



- HM47605
by:

great product. just what I needed to get the wires neat and out of the way.



- HM47605
by:

1 yr later it's still working fine and stays where I put it.



- HM47605
by:

I have purchased several items from the etrailer.com folks as always a smooth transaction with no problems. That's why they've become my "go to" vendor for trailer related products. Good product,fair price, great service before and after the sell, what more can you ask!! Good folks!



- HM47605
by:

Exactly what I wanted.



- HM47605
by:

perfect just what I wanted



- HM47605
by:

Ordered on line Hitch, Harness and associated items. Within a couple of day the large box was delivered. Installation Videos a plus. Install and pictures next, when it stops raining!



- HM47605
by:

The trailer connector was exactly what I needed.



- HM47605
by:

Worked great. Needed to locate flat 4 through to my hitch electrical mounting plate, fit perfect and great prive


Comments
Great product, no issues.
Casey - 09/17/2019



- HM47605
by:

Appears to be a decent product, but it doesn't fit very well at all into the bracket (HM48695) that is sold for that purpose.



- HM47605
by:

Works as expected, no surprises, no disappointments. Thank you for the electrical grease included.



- HM47605
by:

I used this to make an easy trailer connection for my wife's CanAm Spyder. It works perfectly! It was easy to install and it was "Plug and Play". Thank you for providing this product.



- HM47605
by:

Work great



- HM47605
by:

I'm always pleased with shopping at etrailer.com. Good prices, good products, fast shipping. Thanks!


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Ask the Experts about this Hopkins Wiring

  • Can Hopkins 4-Way to 4-Way Adapter Work With Draw-Tite trailer Connector Mounting Box
    The Hopkins Adapter, part # HM47605 is actually a 4-way to 4-way adapter. I pulled the Draw-Tite Mounting Box, part # 18159 from our warehouse, and the HM47605. The 18159 has a 2 inch diameter hole, so the HM47605 will not work with this box, but we do have a mounting bracket that will work. I recommend the Hopkins Mounting Box, part # HM48605. This bracket comes with the mounting hardware and will work with the HM47605 adapter and 4-pole round, 5-pole round, and 6-pole round trailer...
    view full answer...
    Image 1 for
  • Compatible Mounting Bracket for the Hopkins Adapter for 4-Way Flat Connectors part # HM47605
    The Hopkins Knockout Adapter for 4-Way Flat Connectors part # HM47605 that you referenced is designed to let you mount a 4-way in what was once a 6-way round bracket like Hopkins Mounting Bracket part # HM48605.
    view full answer...
  • Can I Drill A Hole In My Bumper To Install Hopkins # HM47605?
    You can do that if you would like. If it were me, I would just get the Hopkins mounting bracket # HM48605 so I didn't have to drill a hole in my bumper. If you are wanting to install # HM47605, using the bracket is the best way to do it!
    view full answer...
  • Recommended 4-Way Trailer Connector Mount for Hidden Crossbar Trailer Hitch
    The Draw-Tite Max-Frame Trailer Hitch Receiver - Custom Fit - Class III - 2" # 75600 for your 2018 BMW X5 does not have a designated mounting location for your 4-way trailer connector. So, for the ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit # 119250KIT or # 119190KIT which are confirmed fit options you can run the 4-way connector out the same bumper hole as the hitch or create a separate hole. My recommendation is either use the...
    view full answer...
    Image 1 for Image 2 for
  • How To Mount 4-Way Connector To 2020 Mazda CX-5 With Trailer Hitch Receiver
    Absolutely! Starting with the harness I recommend the Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118746 which is a plug and play harness confirmed to fit your 2020 Mazda CX-5. I included an installation video of the harness, but you will need to do it slightly different. You will need to cut a slot in one of the grommets in the floor of vehicle, allowing the harness to pass through underneath the vehicle. Then to mount the harness you can use the Curt...
    view full answer...
    Image 1 for
  • Recommended Mounting Bracket For Attaching 4-way Connector to 2020 Jeep Cherokee
    To attach the Mounting Bracket 4-Pole Flat # 18144 you purchased to the Curt Trailer Hitch # C13395 you have installed on your 2020 Jeep Cherokee I recommend going with the No-Drill Mounting Bracket Long # 18136. You will be able to attach it to crosstube pointing towards the ground to clear the bumper of your Jeep and then bend it so that the # 18144 can be installed in the correct orientation. Another option is going with the # HM47605 which you would drill a 1-1/4" hole in the...
    view full answer...
  • Mounting 4-Way Wiring Harness to Front of Flat Towed 2020 Jeep Gladiator
    For your 4-way wiring harness on the front of your 2020 Jeep Gladiator, I recommend using the Mounting Bracket 4-Pole Flat # 18144 with # C57202, the 4-Flat Universal Mounting Bracket # 118149, the Hopkins Mounting Box for 4-Way Flat Trailer Connector # HM48755, or the Hopkins Fold-Over Mounting Bracket for 4-Way Flat Trailer Connector # HM48595. One more option is the # HM47605 combined with # HM48605.
    view full answer...

Do you have a question about this Wiring?




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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Cole B
Installed by:
Cole B
Employee Tammy D
Written by:
Tammy D
Employee Alexander C
Updated by:
Alexander C

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