bing tracking image
  1. Flat Tow Wiring Harness
  2. Roadmaster
  3. Extension Cord
  4. Plugs into Vehicle Wiring
  5. Universal
RoadMaster 4-Wire Flexo-Coil Cord Kit with Mounting Bracket
Roadmaster

RoadMaster 4-Wire Flexo-Coil Cord Kit with Mounting Bracket

Part Number: RM-1644
$79.78
Retail:$101.86
You Save: 22%
Flat Tow Wiring Harness
Add to cart
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Need help with installation?
Locate installers near me
Easily and effectively connect your motor home to your towed vehicle with this water-, oil- and chemical-resistant electrical cord. Flexo-Coil technology allows cord to extend more than 8' and then contract conveniently for storage. 1-800-940-8924 to order Roadmaster flat tow wiring harness part number RM-1644 or order online at etrailer.com. Free expert support on all Roadmaster products. Great prices and Fastest Shipping for RoadMaster 4-Wire Flexo-Coil Cord Kit with Mounting Bracket. Flat Tow Wiring Harness reviews from real customers.
  • All Info
  • Reviews (44)
  • Q & A (0)
  • Videos (2)
  • Photos

Roadmaster Flat Tow Wiring Harness - RM-1644

  • Extension Cord
  • Plugs into Vehicle Wiring
  • Universal
  • Roadmaster

Easily and effectively connect your motor home to your towed vehicle with this water-, oil- and chemical-resistant electrical cord. Flexo-Coil technology allows cord to extend more than 8' and then contract conveniently for storage.


Features:

  • 4-Pole extension cord can be used for multiple towing applications
    • Perfect for running power from your RV to your towed vehicle
  • Flexo-Coil cord can expand up to 8' yet still contract to prevent dragging and tangling
  • Truck-end connectors (sockets) mount to RV and towed vehicle for quick, easy hookup
    • Socket mounting bracket included
  • Silicone-injected plugs prevent corrosion
  • Cord is resistant to water, oil and chemicals
  • Made in the USA


Please note: Flexo-Coil cords are not intended for use with RoadMaster All Terrain tow bars, or any other tow bar that includes cable channel guides. Only straight cords should be used with those models.



1644 RoadMaster 4-Wire Flexo-Coil with Socket Bracket





Video of RoadMaster 4-Wire Flexo-Coil Cord Kit with Mounting Bracket

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




Video Transcript for Checking Out the RoadMaster 4-Wire Flexo-Coil Cord Kit with Mounting Bracket

Today we're going to be reviewing part number RM-1644. This is the RoadMaster 4-Wire Flexo-coil Cord Kit with Mounting Bracket. The four pull extension cord can be used for multiple towing application, which will make it perfect for running power to your RV to your towed vehicle. That way, you still have access to all the lights and turn functions and stop and everything that you need to translate from the motorhome signals over to the towed vehicle signals. This is a 4-wire to 4-wire design. It's got the easy to grip finger tabs for easy disconnect. The Flexo-coil cord can expand more than 8 feet, yet still contracts to prevent dragging and tangling, also making storage very easy.

You're also going to get two sockets. One's going to mount to your RV and one's going to mount to the towed vehicle for quick, easy hook up. They're going to feature the spring-loaded lid. That way the connections are always going to stay protected from dirt and moisture. It's going to come with one bracket.

This also comes with the hardware to get it mounted. Basically, it just holds one of the sockets in place, probably on your towed vehicle is where you're going to install this and it's just going to keep the wires easily accessible, that way all you have to do is flip open the lid once you get it mounted. Plug in the Flexo-coil cord to the towed vehicle side and the other end's going to go to your RV or motorhome. Everything's going to be connected and ready to go. We have silicon injected plugs.

These are designed to help prevent and stand up well against corrosion. The cord is resistant to water, oil, and chemicals. You also want to keep in mind that the Flexo-coil cords are not intended for use with RoadMaster All-Terrain Tow Bars or any other tow bar that includes cable channel guides. Only straight cords should be used with those models. That's going to do it for our review of part number RM-1644. This is the RoadMaster 4-Wire Flexo-coil Cord Kit.

.


Customer Reviews

RoadMaster 4-Wire Flexo-Coil Cord Kit with Mounting Bracket - RM-1644

Average Customer Rating:  4.8 out of 5 stars   (44 Customer Reviews)

Easily and effectively connect your motor home to your towed vehicle with this water-, oil- and chemical-resistant electrical cord. Flexo-Coil technology allows cord to extend more than 8' and then contract conveniently for storage.

by:

It has worked great for me

Juan

9/7/2023

Still doing great

Etrailer Expert

Mike L.

10/31/2023

@Juan Awesome, we're glad to hear that!!


by:

the previous rm-1644 was damaged by my negligence. The product did the job itwas meant to do; that is why i got another. it was shipped same day and it arrived in afew days; thank you for your prompt service



by:

Quick response, up to the minute tracking of shipping. Will do business with these folks again.



by:

Works great with the extra length. I have an extended hitch length due to towing a small car and therefore had to add a 4 inch drop which added extra hitch length. My precious umbilical cord got damaged by being to short and pulling out.



by:

They have most of what you need with fast delivery.



by:

Pricey from all vendors overall but great quality.



by:

The Flexo-Coil kit arrived sooner than I had expected and was exactly what I needed to complete the towing setup for my car behind the motorhome. It works perfectly and now allows me to charge the car battery while towing.



by:

Fast shipping, good price, I buy a lot from etrailer.com. It's always my first place to shop for trailer stuff.



by:

Katie in CS was extreamly knowledgeable and helpful. The quality of the Roadmaster 6 wire flexo coil kit is great.



by:

Durable and well constructed, you know when it is connected.



by:

Customer Service rep Steve was outstanding to work with. Ordered the Flexo-Coil 6 wire kit and it was here within 3 days. Haven't tried it yet but it looks great and i'm sure it will work fine.



by:

Received rm-164 great product,exactly what was needed for my coach and tow vehicle. No re wiring. Thank you.



by:

Very well made, complete kit with a good quality socket for each end. I found the cable a bit short, although the coiled section allows the wire to stretch, the coiling is very strong and resulted in the plugs being pulled out of the sockets unless I strapped the sprung loaded lid to the plug.



by:

Good product, lighting fast delivery.



by:

Perfect fit for what i needed.



by:

Was surprised to receive the product so quickly--about 4 days. The wire was top quality, but much cheaper than I could buy from any RV dealer which I contacted; shipping was more economical than I had expected. This was my second order from you, and I was pleased with both,



by:

I have used RM products for years, and never been disappointed. This cable will replace a 20 yr old one that has been damaged and worn. Have not used new one yet. Expect it will be excellent.



by:

Works great for what I used it for!

GOOD
DEAL, Thanks



by:

I will not be able to install my ordered parts until I have the necessary time to do the job right. All parts were delivered in good time and in great condition



by:

Got just what I ordered no hassles and arrived when I was told it would...thanks great job and will order again when meeded



by:

WAY cheaper than buying here in Canada store



by:

Works excellent, coil works wonderful!



by:

Part came in as promised. Thank you for the excellent service. I have used you several times before with the same excellent service.



by:

works as it should



by:

The product was just what I wanted and service was great!


25
44
Show More Reviews

See what our Experts say about this Roadmaster Flat Tow Wiring Harness

  • Flat Towing Wiring Extension 6-Pin To 6-Pin
    The RoadMaster 6-Wire Flexo-Coil we offer comes in a kit as part # RM-146. This extension comes with the vehicle-end connector to mount to the RV and towed vehicle. I have attached an installation video of these connectors being installed on a 2014 Honda CR-V. If you do not need the vehicle-end 6-pin connectors, you could use the Hopkins Heavy-Duty Trailer Coiled Extension # HM47055. I have attached a review video of this extension for you.
    view full answer...

Info for this part was:

Employee Joe V
Test Fit:
Joe V
Employee Andrew L
Video Edited:
Andrew L
Employee Alan C
Video by:
Alan C
Employee Wilson B
Updated by:
Wilson B

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.


Product Experts Available Now!
Call 1-800-940-8924