1. Safety Chains and Cables
  2. Roadmaster
  3. Safety Cables
  4. Towing a Vehicle
  5. 8000 lbs GTW
  6. 76 Inch Long
RoadMaster 76" Single Hook, Straight Safety Cables - 8,000 lbs

RoadMaster 76" Single Hook, Straight Safety Cables - 8,000 lbs

Item # RM-645-76
lowest price pledge
Our Price: $53.95
You Save: 21%
Safety Chains and Cables
Orders above $99 qualify for Free Shipping
Shipping Weight: 4 lbs
In Stock
zoom in 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

Get the strength of steel and the security of spring-loaded clasps with this pair of vinyl-coated safety cables. Each cable features a spring hook on one end and a quick-link on the other. Lowest Prices for the best safety chains and cables from Roadmaster. RoadMaster 76" Single Hook, Straight Safety Cables - 8,000 lbs part number RM-645-76 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (17)
  • Q & A (11)
  • Videos (2)
  • Photos
  • Why etrailer?

Roadmaster Safety Chains and Cables - RM-645-76

  • Safety Cables
  • Towing a Vehicle
  • 8000 lbs GTW
  • 76 Inch Long
  • Snap Hooks
  • Roadmaster
  • Straight Cables
  • Coated Cables

Get the strength of steel and the security of spring-loaded clasps with this pair of vinyl-coated safety cables. Each cable features a spring hook on one end and a quick-link on the other.


  • Safety cables offer extra security for your tow system
  • Aircraft-type, galvanized steel construction offers superior strength
  • Heavy-duty, drop-forged steel hooks have spring-loaded latches for added security
  • Vinyl coating keeps the cables from scratching and chipping your tow bar
  • Made in the USA
  • Limited Lifetime Warranty


  • Quantity: 2
  • Length: 76"
  • Capacity: 8,000 lbs

645-76 RoadMaster 76" Single Hook, Straight Safety Cables - 8,000 lbs

Video of RoadMaster 76" Single Hook, Straight Safety Cables - 8,000 lbs

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

Video Transcript for RoadMaster Single Hook Straight Safety Cables Installation - 2014 Ford Focus

Speaker 1: Today, on our 2014 Ford Focus, we're gonna be taking a look at and showing you how to install the Roadmaster 76" single hook straight safety cables. Part number RM-645-76. If you ever flat towed a vehicle before, you're gonna know that you gonna wanna have safety cables. They're just that extra bit of security in case anything we're to happen with out towing set up. They're gonna keep our vehicle attached to our motor home. Not only that, but they are required by law.The cables are made out of an aircraft-type galvanized steel construction, so they're gonna be extra durable and strong.

They're also gonna feature a heavy duty drop forged steel hook. It's gonna have a spring loaded clasp to give it extra security and making hooking them up a breeze. The cables are gonna feature a nice vinyl coating around the outside not only to prevent any kind of rust or corrosion on the cable themselves, but it's also gonna prevent any kind of scratched or chipping on our tow bar itself.On the other end where it's gonna attach to our motor home, we're gonna have some quick links. They're also made of steel. Trying to easily thread on.

We're gonna have that security, but also be able to take them off fairly easily. Our cables are gonna be 76" long. They come in a pair and they're gonna have a total weight capacity of 8000 pounds per pair.We already have our Focus hooked up and we have one our safety cables hooked up, so let's go ahead and put the second one on together. To start out, you're gonna notice that we're gonna have two different ends. We're gonna have one that's gonna have a hook on it, the spring loaded clasp, and one that's just gonna have the braided cable on it.

The end with the braided cable, we're gonna take the quick disconnect link and we're gonna slide it over the end of it.Then, we can move to our hitch and find the safety chain connection points. We're gonna find our safety chain connection point and we're gonna slide the quick link over and secure it in place. Now it's important to criss-cross the cables. We just connected it to the passenger side of our motor home, so we're gonna underneath out tow bar and come over to the driver side and cross over the top of our tow bar to take up some of the slack, and then we're gonna find the hook and find our safety cable attachment point on our baseplate.We're just gonna snap it into place. Now, if you're worried about the slack, it will have a little bit of slack taken up because our tow bar isn't in the fully extended position, but you just wanna go ahead and wrap it around your tow bar.

Just make sure that that final loop goes underneath the tow bar, the center section here where it pivots, and make sure that you do cross the cables.With our safety cables hooked up and everything else hooked up as well, we're ready to hit the road. That'll finish up your look at the Roadmaster 76" single hook straight safety cables. Part number RM-645-76 on our 2014 Ford Focus.

Customer Reviews

RoadMaster 76" Single Hook, Straight Safety Cables - 8,000 lbs - RM-645-76

Average Customer Rating:  4.9 out of 5 stars   (17 Customer Reviews)

Get the strength of steel and the security of spring-loaded clasps with this pair of vinyl-coated safety cables. Each cable features a spring hook on one end and a quick-link on the other.

- RM-645-76

Right length for my new setup with the hi-low adapter extension. 76707

- RM-645-76

Quick delivery - as always. Good pricin g. 739145

- RM-645-76

Looks good! 7000 lbs rated also. 708333

- RM-645-76

Quality product. Service and shipping was excellent. I'd ordered a different set of safety cables that turned out to be too short. I contacted etrailer and the folks there were excellent about coordinating a return and ordering a different product better suited to my setup. 697207

- RM-645-76

Arrived promptly and in excellent shape. 692511

- RM-645-76

As advertised! I bought this set to replace the set that was damaged after I installed a receiver drop hitch and pulled out of a shallow driveway after fueling. They were the perfect replacement for my Roadmaster Sterling All Terrain tow bar. I used Velcro straps to allow the safety cables to move with the towbar, but not drop below the bar and be damaged. 633747

- RM-645-76


- RM-645-76

Great products. Great teachers to explain the product after installation. All the qualities you want in a company you can trust. 487026

- RM-645-76

Exactly what I wanted it to do 454863

- RM-645-76

Product was just what I ordered, fast free shipping, and price was great! 384073

- RM-645-76

Troy,you are 2 for 2 .On time and exactly what i ordered...Thanks 327229

- RM-645-76

Received my safety cables. I was wondering about the delivery date so I emailed etrailer and they got right back to me with delivery specifics. Arrived as promised by Derick. Excellent customer service and the product is just as advertised. 288072

- RM-645-76

Nice cover and easy to use, have to use a wrench on the links though can't use your fingers. 287371

After installing two hooks on the open end of the cable it is a lot easier to R
Mike M - 08/27/2017


- RM-645-76

This was a great experience in purchasing a product. The website was easy to work with to find my product. The pricing was very competitive and it was shipped and arrived on time. I will definitely shop here again. 209230

- RM-645-76

Good as expected. Originally had 64" but had to get 76" due to using a drop hitch with the Roadmaster tow bar. 123192

- RM-645-76

Exactly what I ordered. Tow bar safety cables will fulfill my needs to safely tow my jeep behind my motorhome. 107975

- RM-645-76

Exactly what I ordered, in a timely fashion, at the best net price. What else could one ask for? 65739

- RM-645-76

Product looks great and should do the job if needed. However the package had been opened and taped closed but all is well with items inside. 41573


Ask the Experts about this Roadmaster Safety Chains and Cables

  • Where are Roadmaster 64 Inch Safety Cables Measured From?
    The Roadmaster 64" Single Hook, Straight Safety Cables # RM-645 is the overall length of the unit. If you are at all concerned with the amount of length I highly recommend going to a longer cable such as the 76" # RM-645-76 or the 80" Double Hook # RM-674.
    view full answer...
  • Roadmaster Sterling All Terrain Tow Bar Safety Cables Replacement Recommendation
    For the Roadmaster Sterling Tow Bar the recommended length for replacement safety cables is 80 inches. Roadmaster lists the coiled cables part # RM-674 which are coiled only for a small portion of the cable and are straight for the rest of it.
    view full answer...
  • Parts Needed to Flat Tow a 2013 Chevy Traverse Behind an RV Using a Sterling Tow Bar
    For your 2013 Chevy Traverse and Sterling tow bar I recommend the EZ4 base plates # 523175-4. Base plates can be tricky to install so I have included a link to the instructions so you can see the steps ahead of time. In addition to the tow bar and the base plates you will also need safety cables (if the tow bar did not come with any) # RM-645-76, lighting, and supplemental braking. For lighting you can use a simple magnetic kit such as # C-ATL20A but for a more permanent solution I recommend...
    view full answer...
  • Differences of Roadmaster Direct Connect and Cross Bar Base Plates for 2020 Jeep Wrangler Unlimited
    The main difference between the Roadmaster direct connect base plate kit (previously known as the EZ5) # RM-521453-5 and the cross bar style base plate kit (previously known as the EZ4) # RM-521453-4 is how the tow bar attaches to the base plate. The cross bar style base plate uses a quick disconnect bar to connect the tow bar up, the direct connect uses pins and clips to mount to the tow bar. They install exactly the same, the arms are the only difference. A direct connection makes...
    view full answer...
  • Parts Needed to Flat Tow a 2013 Buick Enclave Behind an RV
    The first thing to do is check the capacity of the hitch on your Winnebago. The weight capacity of a Class III hitch varies. There should be a sticker on the hitch but if not the capacity is probably in the RV literature. Assuming that the RV and hitch are rated high enough you will need base plates, a tow bar, safety cables, lighting, and supplemental braking to tow your 2013 Buick Enclave. Starting with the base plates # 523149-1 is an excellent choice. The arms can be removed when...
    view full answer...
  • What is Needed to Flat Tow a 1988 Suzuki Samurai
    There are no special modifications or anything out of the ordinary to flat tow your 1988 Suzuki Samurai. Most flat tow set ups will involve bolting a base plate on, running wires, tapping into the tail light circuit and mounting all the components to the vehicle. Fortunately all the components will bolt on, and can be removed and put back to stock fairly easily. There are several components needed to have a complete flat tow set up, a base plate, tow bar, tow bar wiring, a braking system,...
    view full answer...
  • Correct Base Plates to Flat Tow a 1990 Mazda Miata
    The correct base plates to flat tow your 1990 Mazda Miata are the Roadmaster XL # 711-4. These base plates will work with your Roadmaster Falcon All Terrain tow bar # RM-522 using the included quick-disconnects and crossbar. You will also need safety chains, Roadmaster # RM-643 for 68" chains or # RM-645-76 for 76" chains. For lighting, you can either use magnetic tow lights # TL21RK if you do not plan on towing your Miata often, or Roadmaster Universal Hy-Power Diode Wiring Kit # RM-154...
    view full answer...
  • Flat Towing Base Plates for 2015 Nissan Frontier 4 Cylinder 2 WD w/ Manual Transmission
    This is correct. The Roadmaster # RM-344-3B Base Plate Kit will fit on a 2015 Nissan Frontier S, King Cab 4 Cylinder, 2wd manual transmission vehicle. These direct-connect base plates will work only with the Roadmaster tow bars that slide into a trailer hitch, such as the Sterling # RM-576, Blackhawk or Blackhawk 2 # RM-422, Falcon # RM-522 and Falcon 2 # RM-520 . These base plates will not work with tow bars that require a hitch ball. If you'd like to tow with a different tow bar than...
    view full answer...
  • How To Use the RoadMaster Single Hook Safety Cables With Large Clevis On Jeep Bumper
    The best option I have for you to use the RoadMaster 76" Single Hook, Straight Safety Cables part # RM-645-76 with the larger clevis on your Jeep would be to install a larger hook on the safety cables. For this, we have 1/2" options like part # TCSLIP-G70-13-L as well as 5/8" options like part # C81920.
    view full answer...
  • Can a 2013 Ford F-150 Eco-Boost Be Flat-Towed
    Yes, you can flat-tow a 2013 Ford F-150 Eco-Boost however, you will need a lube pump for the transmission if you have a 4x2 model which we do not offer but I can provide instructions on how to obtain this if needed. I have attached the other parts you will need below. The drive shaft does not need to be removed and the lube pump is not needed on 4x4 models. Roadmaster Direct-Connect Base Plate Kit part # RM-524431-5 Roadmaster Falcon All Terrain Tow Bar part # RM-522 Roadmaster Safety...
    view full answer...
  • Recommended Parts to Flat Tow a 2020 Jeep Cherokee Trailhawk
    To tow your 2020 Jeep Cherokee Trailhawk behind a motorhome there are several components you need for a complete, safe set up. The first is a base plate, I recommend Roadmaster direct- connect base plate kit part # RM-521451-5. The base plate bolts to your Cherokee frame and provides the solid attachment point to hook up to. I have installed a variety of base plates on many different vehicles, and Roadmaster's direct-connect is my favorite. I think they install smoother, and have a really...
    view full answer...

Do you have a question about this Safety Chains and Cable?

  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality safety chains and cables for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • 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 safety chains and cable 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:

Video by:
Andrew K
Video by:
Kathleen M
Expert Research:
Jameson C
Installed by:
Cole B
Video Edited:
Chris R
Test Fit:
Robert C
Updated by:
Hannah L

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.