RoadMaster 12" Safety Cable Extensions - 1 Pair

RoadMaster 12" Safety Cable Extensions - 1 Pair

Item # RM-910648-12

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RM-910648-12 - Loop Extensions Roadmaster Accessories and Parts
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  • Safety Chains and Cables
  • Tow Bars
  • Safety Cable Parts
  • Loop Extensions
  • Roadmaster
  • 12 Inch Long
  • 8000 lbs GTW
Extend the length of your towing system without having to buy new safety cables. Extensions add an extra 12" so you can use high-low receivers, hitch extensions and other accessories. Call 800-298-8924 to order Roadmaster accessories and parts part number RM-910648-12 or order online at Free expert support on all Roadmaster products. Guaranteed Lowest Price and Fastest Shipping for RoadMaster 12" Safety Cable Extensions - 1 Pair. Accessories and Parts reviews from real customers.

  • All Info
  • Reviews (14)
  • Q & A (10)
  • Videos (1)
  • Photos
  • Why etrailer?

Roadmaster Accessories and Parts - RM-910648-12

Extend the length of your towing system without having to buy new safety cables. Extensions add an extra 12" so you can use high-low receivers, hitch extensions and other accessories.


  • Extends safety cables for use with accessories that increase the length of your towing system
  • Includes cables and quick links
  • Made in the USA


  • Length: 12"
  • Capacity: 8,000 lbs

910648-12 RoadMaster Safety Cable Extensions

Video of RoadMaster 12" Safety Cable Extensions - 1 Pair

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

Video Transcript for Roadmaster Safety Chains and Cables RM-910648-12 Review

Today we're going to be taking a look at the Roadmaster 12" safety cable extensions. These are going to extend the length of your towing system without having to buy new safety cables. The extensions are going to add an extra 12 inches so you can use high-low receivers, hitch extensions, and other accessories. It's going to come with two cables and two quick links for easy connecting and disconnecting. These are rated with a max capacity of 8,000 lbs. The cables are a braided steel construction and in the center area it's going to have a nice vinyl coating.

That coating is going to help keep the cables from scratching any components of your towing setup. The cable portion with that vinyl coating is going to give us a diameter of about 3/8". The quick links are made from a steel construction. They're going to have a zinc finish so they're going to be highly resistant to rust and corrosion. They do feature the threaded barrel style connector, it makes connecting and disconnecting quick and easy. That can simply be done by hand or if you want to use a wrench, you can do so.

This will accept a 5/8" wrench or a 15mm wrench. A few measurements that we want to go over with you real quick regarding the quick links is we want to go over the overall length and width. The overall length, you can see that's going to be about 3 and 3/16" to 3 and 1/4", right in that area. The overall width, measuring to the outer portion of that barrel, that's going to be about 1 and 9/16" to 1 and 5/8". The opening that we have right here, measuring that gap, it's going to be 7/16". I do want to point out that the diameter of the actual length is 3/8".

That threaded portion has a slightly larger diameter. The diameter of that threaded portion is going to be about 7/16" to 1/2", right in that area. Now we'll go ahead and take a look at the internal measurements, that's how much usable space we're going to have inside the quick link. Measuring the overall length first of just that inner portion, that's going to be about 2 and 1/2". Measuring the opening below the barrel, we're looking at about 3/4". To that barrel, on the flat side, it's going to be about 5/8". Again these are going to add 12 inches of extension, that's going to be the length of our cable.

It's a nice, strong, durable, dependable unit. That's going to do it for today's look at the Roadmaster 12" safety cable extensions.

Customer Reviews

RoadMaster 12" Safety Cable Extensions - 1 Pair - RM-910648-12

Average Customer Rating:  4.6 out of 5 stars   (14 Customer Reviews)

Extend the length of your towing system without having to buy new safety cables. Extensions add an extra 12" so you can use high-low receivers, hitch extensions and other accessories.

- RM-910648-12

We use a dual hitch receiver on our RV for the tow vehicle and bike rack. The toad safety cables need to be longer when using the dual hitch receiver. The 12" safety cable extensions provide the additional length needed. 371373

- RM-910648-12

The safety cables arrived yesterday. I tried to put them on the rig today and the threaded fasteners will not open sufficiently to allow placing them on the towbar. I will try a slight hammer to force them onto the bar but this may damage the threads on the device. Will let you know if they need to be returned. 194720

- RM-910648-12

The cables are fit perfectly and are easy to install. Rebecca N at etrailer was very helpful in my purchase. 176763

- RM-910648-12

Second purchase from etrailer. As usual, the items are a good price and they arrived when promised. Will always check etrailer for the parts I need first. 281184

- RM-910648-12

Received product today. Hopefully it's not to long. Not quite ready to connect up yet, looking forward to give the cables a try. 324451

- RM-910648-12


- RM-910648-12

Thanks for the tech advice. These were the answer to the crazy hitch on my new Silverado 2500 HD. Don’t know why they designed a hitch that the average safety chains won’t attach to. 643569

- RM-910648-12

Can't pass along enough praise for you folks! Ordered these, along with a pair of safety cable extensions, on Easter weekend. Received an email notifying shipment... on Easter day! While not a large order, I needed them for a trip the following week, so was concerned they wouldn't arrive in time. Even though I didn't request rapid shipping, they arrived in plenty of time. Thanks much! 639228

- RM-910648-12

Adam was excellent in taking care of my concerns. Thanks Adam 389543

- RM-910648-12

Perfect 235927

- RM-910648-12

Look good. 226533

- RM-910648-12

Great product and good service 163691

- RM-910648-12

As advertised. They were shipped quickly and arrived a day early.Excellent service. Thank you very much 65787

- RM-910648-12

Fast, accurate service. Best prices I've found. 52045


Ask the Experts about this Roadmaster Accessories and Parts
Do you have a question about this Accessories and Part?

  • Safety Chain Hooks Won't Fit Class V Trailer Hitch on a Chevy Silverado 3500HD
  • I have come across this issue before. What I recommended was to loop safety cables # RM-910648-12 through the hitch safety chain holes and hook the safety chains to the loops. The cables are rated for 8,000 pounds which is the highest for these short cables. There doesn't seem to be any hooks that will fit directly to the factory Class V hitch on your Chevy 3500.
    view full answer...

  • Solution for Attaching Safety Chains to Loops on 2018 Ford Truck Factory Hitch
  • You are not the first customer to have issues with the safety chain hooks on the OEM trailer hitch for your 2018 Ford truck. Using a quick link like the Fulton # 49135 that you referenced might be a good option, as long as the gap on the link is large enough to fit around the loops. When opened, the Quick Link has a gap that measures 9/16 of an inch and the inside length is 3-1/4 inches. I have attached a couple images to clarify these dimensions. If this is not large enough, another...
    view full answer...

  • Attaching Trailer Safety Chains to Large Chain Loops on 2015 Chevy Silverado 2500 Factory Hitch
  • That 2015 Silverado hitch and its safety chains loops have caused more than a few headaches but I do have a solution that has worked for others. A clevis such as # 6495-401-04 won't work but what I have recommended before is to route some safety cables through each loop and secure the 2 ends together with quick links such as in kit # RM-910648-12. Then you can attach the safety chains from the trailer to the quick links. Wear would not be an issue since the cables are more or less just...
    view full answer...

  • Troubleshooting Flat Tires When Towing Mini Cooper With 2011 Holiday Rambler
  • First, before flat towing your 2011 Mini Cooper, be sure the tires are filled to the recommended psi and in good condition. More importantly, be certain your steering column is not locked; if your tires are unable to turn they would wear out quickly. If you think your safety cables may be an issue, and yours are shorter than 7', an option would be the Blue Ox Blue Ox 7' Safety Cables # BX88197. Another thing you could do is add an anti-rattle device such as the Blue Ox Hitch Receiver...
    view full answer...

  • Hooking Safety Chains to Class V Factory Trailer Hitch on 2014 GMC Sierra
  • The best option for using safety chains with the Class V factory trailer hitch on your 2014 GMC Sierra is simply to loop safety cables like # RM-910648-12 through each chain hole and secure the ends together. You can then just attach your safety chains from the trailer to the quick links on these cables. These have a weight capacity of 8,000 pounds. We have not yet found a hook that is able to fit directly with the factory trailer hitch on your Sierra.
    view full answer...

  • Are Base Plate to Frame Safety Cables Required for the Roadmaster XL, EZ4, or EZ5
  • I spoke to my contact at Roadmaster and they stated that the short safety cables that you are referring to are not required when using either the Roadmaster XL part # 1444-1, Roadmaster EZ4 part # RM-521448-4, or Roadmaster EZ5 part # RM-521448-5 on your 2018 Jeep JK Wrangler Unlimited. You can add them for extra peace of mind using part # RM-910648-12 but they are not required. The safety chain loops you are referring to on the above base plate kits go to the motorhome not the vehicle. Please...
    view full answer...

  • Where to Connect Safety Cables on Jeep When Using Blue Ox Off Road Adapters
  • That is an excellent question! Since you will be using your D-Rings for the Blue Ox Off-Road Adapters # BX88296 you will need to find a place on your frame that you can connect the safety cables to. One possible options would be to use RoadMaster 12" Safety Cable Extensions # RM-910648-12 to loop around your frame and then connect the safety cables to these. I confirmed that this would be okay with my contact at Blue Ox.
    view full answer...

  • Solution For Attaching Safety Chains to Factory Class V Hitch on 2017 Ford F-250
  • We have seen this issue before with the factory Class V hitches on various model trucks, such as what is on your 2017 Ford F-250. What we recommend doing is looping safety cables like the RoadMaster # RM-910648-12 through the safety chain hooks on the hitch and then hooking the safety chains to the loops. These cables feature a weight capacity of 8,000 pounds each. We have not found a particular hook or adapter large enough to fit the safety chain loops on the factory hitch for your F-250.
    view full answer...

  • Weight Rating of Quick Links Included with Roadmaster Safety Cable Extensions RM-910648-12
  • The Roadmaster Safety Cable Extensions # RM-910648-12 do include Quick Link connectors. The connectors alone are part # RM-910022 and these are rated for 6000-lbs. Other Quick Links like Curt # C82931 are rated lower, in this case 2640-lbs.
    view full answer...

  • What is the Weight Capacity for the Roadmaster 12-Inch Safety Cable Extensions # RM-910648-12
  • The 8000-lb rating for the Roadmaster Tow Bar Safety Cable Extensions, part # RM-910648-12, is the total for the pair. These safety cable extensions are for use when flat towing an automobile behind a mobile home. When towing a trailer safety chains (not cables) are required. Fulton offers a safety chain rated at 18,800-lbs. This has a clevis hook on one end and measures 42-inches in length. You will need two. The part # is FCHA0050324.
    view full answer...

Do you have a question about this Accessories and Part?

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Info for this part was:

Photos by:
Theodore B
Video Edited:
Joshua S
Expert Research:
Adam R
Installed by:
Cole B
Photos by:
Jeffrey L

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