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Hopkins Nite-Glow Tow Bar Extension Cord w/ Socket - Coiled - 7-Way RV to 4-Way Round - 8' Long

Hopkins Nite-Glow Tow Bar Extension Cord w/ Socket - Coiled - 7-Way RV to 4-Way Round - 8' Long

Item # HM47044
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HM47044 - Extension Hopkins Accessories and Parts
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In Use/Installed

The 8' long, coiled adapter cord in this Hopkins Endurance kit gives you extra length to connect your towed car to your RV. The connectors glow to verify tail light function. Includes 4-way socket with mounting bracket for towed car. Call 800-298-8924 to order Hopkins accessories and parts part number HM47044 or order online at etrailer.com. Free expert support on all Hopkins products. Guaranteed Lowest Price and Fastest Shipping for Hopkins Nite-Glow Tow Bar Extension Cord w/ Socket - Coiled - 7-Way RV to 4-Way Round - 8' Long. Accessories and Parts reviews from real customers.
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  • Reviews (74)
  • Q & A (9)
  • Videos (2)
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Hopkins Accessories and Parts - HM47044

  • Tow Bar Wiring
  • Extension
  • Hopkins
  • 7 Blade to 4 Round
  • Coiled Cord

The 8' long, coiled adapter cord in this Hopkins Endurance kit gives you extra length to connect your towed car to your RV. The connectors glow to verify tail light function. Includes 4-way socket with mounting bracket for towed car.


  • Kit lets you easily run power from your RV to your towed vehicle
  • Adapter cord connects the 7-way, blade-style connector on your RV to the 4-way round connector that mounts on your towed vehicle
  • 4-Way round socket wires into towed car
    • Mounts with included bracket and hardware
  • Nite-Glow plugs light up when tail lights on RV are activated
    • Confirm continuity of tail light circuits
    • Let you find your electrical connections in the dark
  • Coiled cable stretches to fit your needs
    • Keeps wire from dragging on the ground
  • Easy-to-grip, heavy-duty plugs


  • Cable length when fully stretched: 8'
  • Cable diameter: 5/16"
  • 3-Year warranty

This adapter allows the 7-way, RV-style connector pictured on the left to work with the 4-way round connector on the right.

7-Way, RV-Style, Vehicle-End Connector4-Way Round, Vehicle-End Connector

47044 Hopkins Endurance Flex-Coil Night Glow 7-Pole to 4-Pole Towed Vehicle Adapter Kit

California residents: click here

Video of Hopkins Nite-Glow Tow Bar Extension Cord w/ Socket - Coiled - 7-Way RV to 4-Way Round - 8' Long

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

Video Transcript for Hopkins Tow Bar Wiring HM47044 Review

Today we'll be reviewing Part Number HM-47044. This is the Hopkins Nite Glow Tow Bar Extension Cord with Socket. It is a coiled cord. It's going to connect a 7-way RV to a 4-way round, and when fully extended this cord is going to be 8 feet in length. This kit is going to let you easily run power from your RV to your towed vehicle. The adapter cord connects to the 7-way blade-style connector on your RV, and to the 4-way round connector that mounts on your towed vehicle.

A 4-way round socket wires into the towed car, it has a nice mount with the included bracket and hardware. Nite Glow plugs light up when tail lights on the RV are activated. This is going to confirm the continuity of tail light circuits. It's also going to let you find your electrical connections when you're in low-light conditions. The coiled cable is going to stretch to fit your needs, and it's also going to keep your wire from dragging on the ground. The plugs here are nice, easy to grip heavy-duty plug, and again the cable when fully extended is 8 feet in length, and it's about 5/16's of an inch in diameter.

That's going to complete today's review of the Hopkins Night Glow Tow Bar Extension Cord with Socket, Part Number HM-47044. .

Customer Reviews

Hopkins Nite-Glow Tow Bar Extension Cord w/ Socket - Coiled - 7-Way RV to 4-Way Round - 8' Long - HM47044

Average Customer Rating:  4.6 out of 5 stars   (74 Customer Reviews)

The 8' long, coiled adapter cord in this Hopkins Endurance kit gives you extra length to connect your towed car to your RV. The connectors glow to verify tail light function. Includes 4-way socket with mounting bracket for towed car.

- HM47044

Good quality 749724

- HM47044

Works good 729027

- HM47044

The product looks very good quality but i think it is actually for a travel trailer and i bought it thinking it was for a motorhome and a dingy. 723426

- HM47044

Product is good, would rate higher, but it seems to stretch out and then when unplugged does no curl back up like my older cord did. Everything else is great. 721034

- HM47044

Product looks really good, just wish it was a foot longer. I haven't tried it yet. I hope it doesn't pull out when making turns. I'm using it on my Saturn toad car, behind my class C fleetwood motor home. 697864

- HM47044

I ordered this and received it very fast, the price was very reasonable compared to other company's, I haven t used it yet but will in the next 2 weeks, if you want to save 40 to 50 % than order from this company 682469

- HM47044

This looks pretty good, again I haven't had a chance to install it yet, but I'm sure it'll work fine. Maybe I'll report back once I have it installed and working. 649843

- HM47044

Great product, great price, fast shippi ng. 647260

- HM47044

Easy install ! 558688

- HM47044

Works perfectly 555907

- HM47044

I open the package and all looks correct, have not yet installed on Jeep Again Great service from Etrailer!! 554323

Great product no issues. Used for over a year.
Michael - 08/16/2019


- HM47044

works great, no problems so far. its ice i can look out back window and see the plug is glowing so i know my lights are working. 474783

works great, I can look out rear camera at night and see plug glowing.
Richard - 02/11/2019


- HM47044

Worked perfect! 464982

Could not be more satisfied! Will be ordering a rear hitch for a Fiat 500L later this year to install on my daughters car. Thanks for your great products and service!
Paul - 01/05/2019


- HM47044

good price fast friendly service 433559

- HM47044


- HM47044

I'am in the process of setting up my 2017 Equinox to tow behind our motorhome. I've placed 4-orders with etrailer. So far I've installed the base plate, the wiring from the rear tail lights to the front end.I also received my Tow bar and the quick release parts. my next project is to install the invisi brake system. I want to send Kudos to Cathy T for her help and her great customer service. I'am also thanking James A for his quick response to a question about the wiring harness. I'am extremely happy with the quality of everything I ordered at etrailer. Thanks 421654

- HM47044

Good product just what I wanted 387962

- HM47044

Absolutely perfect 384671

- HM47044

All of the etrailer.com products I have purchased were perfect. The shipping was right on time. I have told several of my friends and acquaintances about etrailer.com. 369857

- HM47044

The adapter cable worked great and eliminated two other adapters that I hd previously been using to connect the RV to my Saturn SW 322166

- HM47044

Product as described. Fast and correct shipping. I will continue to deal with this exceptional company! 311745

- HM47044

This product was an easy installation and of quality construction. Thanks George of Etrailer... Guy 294873

- HM47044

Very nice quality, shipping to the East Coast was very reasonable. 237126

- HM47044

Product that I received was as advertised, shipping time was good .overall very happy with product and website, will definitely order from them again and will recommend this site to friends. 198093

- HM47044

Great unit. Met my expectations. Just a long drive to pickup. Found out on arrival I could have picked up out of Texas 191890

Show More Reviews

Ask the Experts about this Hopkins Accessories and Parts

  • Hopkins Nite-Glow Tow Bar Extension Cord w/ Socket Recommendation for RV Towing Vehicle
    Sounds like your dinghy vehicle is getting corrosion in it's tow bar lighting connector from driving the vehicle in inclement weather. If you wanted to go with the kit part # HM47044 that would be a great solution to give you a new umbilical from the tow vehicle to the dinghy and a new 4-way for the dinghy as well. If you can I would try to mount the 4-way out of the direct path of possible rain or spray from other vehicles.
    view full answer...
  • 7-Pole To 4-Pole Trailer Connector Adapter To Flat Tow 1997 Suzuki Sidekick
    From your photos you have a 7-blade connector on the RexAir and a 4 pin round connector on the 1997 Suzuki Sidekick. The blue wire in your photos is a 4 pin to 4 pin connector which will not work to connect the RV and the Suzuki. All you need is a 7-pole to 4-pole adapter part # HM47043 to connect the RV to the Suzuki.
    view full answer...
  • Availability of Tow Bar Umbilical Style Adapter to Go From 4-Way Flat to 7-Way Blade
    Yes, for a tow bar umbilical extension adapter to go between the 4-way flat of the part # HM56304 and a 7-way socket you'd want the Wesbar adapter part # 787196. This has a 5-way flat on one end and a 7-way blade connector on other. The difference between a 5-way and a 4-way is just the extra pin on the outside of the connector. This pin would simply be left off when used with a 4-way. I attached a link to a video for this adapter that shows it in use for you to check out as well.
    view full answer...
  • Recommended 4-Way Connection Between Towed Vehicle and Motorhome
    The only real advantage of the 4 round over the 4 flat trailer connector is the clean look of the connection point and the protection from elements when not in use. For instance the Pollak Heavy-Duty, 4-Pole, Round Pin Socket, Concealed Terminals - Chrome - Vehicle End # PK11410 has a clean finished look on the front of a towed vehicle and will protect the connection from dirt and debris with the spring loaded cover. Many people like the connection between the motorhome using a harness...
    view full answer...
  • Parts Needed to Flat Tow 2006 Jeep Grand-Cherokee Behind RV
    Safe and legal flat towing of a vehicle behind a RV requires a number of components. A tow bar, safety cables, a wiring/lighting kit, base plates and a braking system for the towed car are essential items; a high/low hitch adapter and wiring extension are also often required. The linked article covers each of these in detail and this is a great place to start getting familiar with the requirements. For base plates I recommend the Blue Ox # BX1123 which will fit your Grand Cherokee as...
    view full answer...
  • Towed Vehicle Wiring and Wiring Extension Recommendation for 2013 Honda CR-V
    The tow bar wiring I recommend for your 2013 Honda CR-V is the Hopkins Custom Tail Light Wiring Kit for Towed Vehicles # HM56304. This is a custom-fit wiring harness that will plug into your vehicle wiring behind the taillights. I recommend this kit because of the ease of installation and the fact that the harness will prevent electrical feedback to protect your CR-V's electrical system. I have attached an installation video of this wiring harness on a similar vehicle as yours. You...
    view full answer...
  • Does the Blue Ox Tail Light Wiring Kit with Block Diode # BX8811 Come With a 4-Way Connector
    The Blue Ox Tail Light Wiring Kit with Block Diode # BX8811 that you referenced does not come with a 4-Way connector as you stated. To add a 4-Way connector you can simply use the Hopkins Wiring Harness with 4-Pole Flat Trailer Connector # HM38138 and connect it to your current wiring using Butt Connectors # DW05744-5. For a look that is a little more clean and will provide you with a 7-Way to connect to your RV you can use the Hopkins Nite-Glow Tow Bar Extension Cord w/ Socket -...
    view full answer...
  • Availability of 8 Foot Flat Towing Umbilical with 7-Way on One End and 4-Pole Flat on the Other
    There's not an available 7-way to 4-pole flat umbilical like what you're looking for, but I do have some easy solutions for you. The Hopkins Nite-Glow 7-way to 5-way flat coiled adapter, part # HM47025 will work with either a 4-pole or a 5-pole trailer connector. It would plug right into the connector at the front of the towed vehicle provided by the Hopkins Towed Vehicle Wiring Harness you referenced, part # HM56302. If the unused socket bothered you, you could cover it with a small...
    view full answer...
  • Coiled 7-Way to 4-Way Round Adapter Recommendation
    Sounds like you are looking for the Hopkins Endurance Flex-Coil part # HM47043 which will plug a 7-way blade to a 4-way round connector. Or if you need the 4-way round socket as well you'd need the part # HM47044.
    view full answer...

Do you have a question about this Accessories and Part?

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Info for this part was:

Test Fit:
Joe V
Video by:
Andrew K
Edited by:
Lindsey S
Expert Research:
Jameson C
Video Edited:
Jacob T
Installed by:
Cole B
Written by:
Tammy D
Updated by:
Alexander C

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