bing tracking image
  1. Accessories and Parts
  2. Roadmaster
  3. Tow Bar Braking Systems
  4. Cables
Roadmaster Coiled Cable for Even Brake Braking System

Roadmaster Coiled Cable for Even Brake Braking System

Item # RM-8603
Our Price: $16.67
You Save: 40%
Accessories and Parts

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Orders above $50 qualify for Free Shipping
Shipping Weight: 0.18 lbs
In Stock
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


Need help with installation?
Locate installers near me
1-636-306-4830 to order Roadmaster accessories and parts part number RM-8603 or order online at Free expert support on all Roadmaster products. Guaranteed Lowest Price and Fastest Shipping for Roadmaster Coiled Cable for Even Brake Braking System. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (128)
  • Q & A (0)
  • Videos (1)
  • Photos
  • Why etrailer?

Roadmaster Accessories and Parts - RM-8603

  • Tow Bar Braking Systems
  • Cables
  • Roadmaster


  • For use with emergency breakaway system, included with Even Brake
  • Can be used with trailer break-away switch and other dead-man switches
  • Coiled design keeps cable off road
  • Allows slack for cornering
  • Extends to 8'
  • Limited Lifetime Warranty

8603 Roadmaster Break Away and Safety Cable

Video of Roadmaster Coiled Cable for Even Brake Braking System

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

Video Transcript for Review of Roadmaster Tow Bar Braking Systems - RM-8603

Jeff: Hello everybody, this is Jeff Today, we're going to take a look at this Roadmaster coiled cable for the Even Brake braking system. Now this is for use with an emergency breakaway system. This part is included with the Even Brake braking system. This can be used on trailer breakaway switches and other dead man switches. You can see it has a nice coil design.

Keeps the cable off the road, allows slack for cornering.Now this does extend to about eight feet and it will retract for storage. You notice on each end it has the carabiners, two of them total for attaching to one end to the breakaway switch, the other to the tow vehicle. But that should do it for the review on the Roadmaster coiled cable for the Even Brake braking system.

Customer Satisfaction Score:

Customer Reviews

Roadmaster Coiled Cable for Even Brake Braking System - RM-8603

Average Customer Rating:  4.8 out of 5 stars   (128 Customer Reviews)


Still holding up well, outside all the time on trailer under a roof. Has just the right amount of slack.


My experience with etrailer was good from the perspective of the cooperation and pleasantness. However, even though I was clear on the tow bar I had (Blue Ox) and the vehicle I was towing (2005 Dodge Dakota) when the tow package came and the shop I had installing it got to the end of the installation, it was discovered that the wrong pins were sent, i.e. they wouldn't lock in place - too short . At first we couldn't determine what the problem was, so I called etrailer back. Was told those were the correct pins. Finally called Blue Ox directly and the rep immediately told me (after I gave him the PN) that those were the wrong pins. Without me asking he offered and did send two replacement pins free of charge. They worked perfectly.


I have three trailers that I use them on. Makes the hook up look cleaner.


Carabiner ends are too small to connect on my RV and too small to handle easily on the car end, but can simply be replaced with medium-sized carabiners.


Flexible cable, maintains coiled shape


High quality. Robust metal cable inside with vinyl coating. Strong little caribeners. I trust my camper with this brake cable.


purchased as a spare in case something happens to our regular tether


critical to have when towing especially when having to make sharp turns the coiled cable allows you that ability without locking down the brakes.

Red plastic covering has faded some, works great
Kevin T - 08/07/2021


Excellent product and service delivered on time great people to work with they will be seeing more of my business thanks


Sending a photo of our Jeep behind our Winnebago View with our Roadmaster Falcon tow bar. Great service and advice.

Great choice. Works perfectly
John - 06/13/2020


Perfect replacement!


I have been very happy with the service and response from etrailer and staff. I highly recommend etrailer for RV and other merchandise. The items I have ordered are always of good quality.

It works fine. Thank you.
Kenneth - 01/30/2018


I'm extremely happy with this product so far! The stock takeaway cable was so long it drug on the ground and frayed it in half, so this was its replacement! Upon installation I had to lightly trim the plastic on the plunger that goes into the brakeaway cable box for the caribeaner to fit inside, but after 2 minutes with my pocket knife the caribeaner fit perfectly inside! I towed my pop up around town to air up the tires and get propane and I didn't have any issues with the new cable, but the true test is this weekend when I tow the pop up 2.5/3 hours away from home. I am very confident that this brakeaway cable will last and perform how it's supposed to! I'm a very happy customer!


I bought this cable to replace the cheesy OEM breakaway cable on my trailer. This one has plenty of uncoiled length that I won't worry about it pulling out when turning, but the coiled length is short enough to keep it from sagging and dragging. The included clips are very small, so I replaced them with some larger ones I had lying around the house so they'd fit what I'm clipping them onto.


Excellent products, shipped as promised and arrived on time. I have installed all the products. Although it took me longer then a professional installer, I had little to no issues. The online installation videos for all the parts (which were attached to the online order status sheet) made it extremely easy to install. The videos were of a professional actually installing the equipment step by step. has a customer for life.


I ordered this cable as a backup for my current cable on my Roadmaster Supplemental Braking System. It was exactly what I was looking for and came quickly.


Arrived Quickly, just what I ordered.


Product was easy to install and appears to have weathered the elements. I cannot comment on how it has worked since it is an emergency brake cable, which (thankfully) I have not needed to use.


All the products I order from etrailer I like. That is why I ordered them. But what I really like is the service ethic of etrailer. An occasionally, when my order is confusing or a question about my address, I get a phone call. A PHONE CALL. Can be on Sunday evening or Saturday morning or during the week. What a service.


ETrailer was very easy to deal with. Their website showed an error in the shipping costs, an an eTrailer representative personally called me to explain what occurred, and to get my authorization for the correction. I appreciated the personal touch. The product arrived, and works as advertised. I will definitely deal with them again.


This is the third time ordering from etrailer. I have had nothing but good experiences when purchasing from them. The products are delivered in a timely manner and have worked as expected. I would recommend etrailer to anyone.


Product arrived very quickly and looks to be of great quality. This will be a lot easier to use that the standard cable that normally comes with the break away switch. It can't drag on the ground either, so this one will not get worn out.


Exactly what I was looking for, previous cable would drag or get snagged and pull the brake pin. The coil helps keep it up and provides expansion when turning.


I lost our original cable and this has been a great replacement.


This product works great , prior to this I had the manufacture safety tie on and it pulled while making a turn and my brakes locked didn't know they were locked while driving cause all four break not to work.

Show More Reviews

See what our Experts say about this Roadmaster Accessories and Parts

Do you have a question about this Accessories and Part?

  • Why

    At we guarantee:
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate accessories and part information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Adele M
Updated by:
Adele M

At 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 1-636-306-4830