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  1. Tow Bar
  2. Roadmaster
  3. Fits Roadmaster Base Plates - Direct Connect
  4. Telescoping
  5. Hitch Mount Style
  6. 8000 lbs
Roadmaster Sterling All Terrain, Non-Binding Tow Bar - Motorhome Mount - 2" Hitch - 8K

Roadmaster Sterling All Terrain, Non-Binding Tow Bar - Motorhome Mount - 2" Hitch - 8K

Item # RM-576
Our Price: $1,175.00
Tow Bar
This item qualifies for Free Shipping
Shipping Weight: 63 lbs
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Product Expert Kathleen M

Is this right for you? Product Expert Kathleen M says:

Yes, if you:

  • Tow a full-size truck or SUV
  • Want a really sleek-looking tow bar with a unique finish and built-in channels that keep cables hidden
  • Like to camp on rougher terrain - non-binding arms let you easily disconnect

No, if you:

  • Already have safety cables and an electrical cord in good working order
  • Have a Blue Ox baseplate and don't want to buy adapters
Lightweight and rustproof aluminum tow bar comes with cables and wiring. Hassle-free latches let you easily release your car, even at a hard angle or on unlevel ground. Large hookup radius makes connecting a snap. Easily folds up to store on your RV. Great Prices for the best tow bar from Roadmaster. Roadmaster Sterling All Terrain, Non-Binding Tow Bar - Motorhome Mount - 2" Hitch - 8K part number RM-576 can be ordered online at or call 1-833-496-1390 for expert service.
  • All Info
  • Reviews (98)
  • Q & A (0)
  • Photos
  • Why etrailer?

Roadmaster Tow Bar - RM-576

  • Fits Roadmaster Base Plates - Direct Connect
  • Telescoping
  • Hitch Mount Style
  • 8000 lbs
  • Roadmaster
  • Non-Binding
  • Stores on RV
  • Aluminum

Lightweight and rustproof aluminum tow bar comes with cables and wiring. Hassle-free latches let you easily release your car, even at a hard angle or on unlevel ground. Large hookup radius makes connecting a snap. Easily folds up to store on your RV.


  • Tow bar lets you tow your vehicle safely and securely behind your motorhome
    • Slides into trailer hitch receiver on RV - no ball mount necessary
  • Non-binding design allows you to release your vehicle at any time, anywhere - even on unlevel ground
  • Large hookup radius makes connecting a breeze at any angle, even if your vehicle isn't perfectly lined up with your RV
  • Self-aligning design - just hook up and drive RV forward
    • Arms extend into rigid, tow-ready position and automatically lock in place
  • Extra-long telescoping arms allow for better maneuverability and easier towing
    • Stainless steel construction of inner arms allows for smooth operation
  • Strong, corrosion-resistant tow bar is built to last
    • FEA testing guarantees a strong finished product
    • Self-lubricated nylon bushings eliminate friction between the inner and outer arms for a longer-lasting, better-functioning system
    • Eggshell-like structure allows stress to be evenly distributed for maximum strength
    • Lightweight, aircraft-grade aluminum body is durable and rustproof
    • Steel and stainless steel are built in at critical points to maintain structural integrity
    • High-tech powder coat finish provides additional durability
  • Cable guides protect included wires and safety cables from getting damaged or tangled
    • Included galvanized steel safety cables are fast and easy to connect
    • Electrical cord has silicone-injected 7-way RV-style plug on 1 end and 6-way plug on other end
      • 6-Way socket for towed car included
  • Simple, secure storage alongside motorhome
    • Simply fold up the tow bar towards the RV and secure with the built-in storage latch
  • Fast, easy hookup and disconnect
    • EZ, EZ2, EZ4, Classic, and XL base plates use the included quick-disconnects
      • Crossbar (910021-00) is sold separately
    • MX, MS, and EZ5 use the included pins and clips
  • Made in the USA


  • Compatibility: works with all Roadmaster vehicle-specific base plates
    • Can be adapted for use with Blue Ox base plates with the Roadmaster Tow Bar to Blue Ox Brackets Adapter (RM-031 - sold separately)
  • Application: 2" x 2" trailer hitch receivers
  • Arm length (as measured from center of hitch pin hole to center of quick-disconnect bar):
    • Extended: 50-1/2"
    • Retracted: 37-1/2"
  • Weight capacity: 8,000 lbs
  • Weight: 35 lbs
  • Limited lifetime warranty

Necessities for Flat Towing

For the RVFor the Towed CarTo Link the Towed Car and RV
HitchBase platesTow bar
Wiring plugBraking systemSafety cables
Wiring kit/diodesWiring adapter cord

Superior Design for Sturdy, Lightweight Tow Bar

Egg Shaped Design

The unique, eggshell design of the Sterling All Terrain distributes stress evenly throughout its aluminum body, resulting in a lightweight yet durable tow bar. Critical points are made even stronger to allow for an 8,000-lb capacity. For example, the shank portion that slides into the hitch is constructed of steel to ensure that the tow bar can handle stress at this point. Stainless steel inner arms provide even more durability and strength.

Fast, Easy Hookup

This Roadmaster tow bar has a large hookup radius to ensure simple, secure hookup. What this means is that, even if your towed car is not perfectly aligned with your RV, you will still be able to make the necessary connections. To achieve this, the Sterling has stainless steel, telescopic inner arms that adjust independently. In addition, these arms are able to pivot in and out, changing the spread. So, if your car is angled a bit behind your RV, you'll still be able to hook up by bringing the arms closer together and staggering the length so that 1 arm is longer than the other, allowing it to reach the more distant base plate.

The fact that the arms are extra-long also allows for a better turning radius. By putting more distance between your motorhome and your towed car, your entire setup will become easier to maneuver so that your towed car will track behind your motorhome without running the risk of hitting your RV during turns.


When using EZ, EZ2, EZ4, XL, or Classic base plates, quick-disconnects make it a snap to attach the tow bar to your vehicle. Other methods require you to maneuver each tow bar arm individually and perfectly line up tabs on the arms with tabs on your base plates. Roadmaster's unique design lets you connect and disconnect the tow bar quickly and easily, all by yourself.

The quick-disconnect brackets come in separate pieces. The pieces that are positioned on the ends of each tow bar arm interlock with matching brackets that attach to your Roadmaster base plates. Sandwiched between the tow bar arms is a sturdy crossbar that essentially turns the arms into a single structure. This crossbar allows you to lower the tow bar as a single piece onto the quick-disconnect brackets on your towed car so that you don't have to connect each arm separately. When lowering the tow bar onto the brackets, make sure that the tab on each bracket lines up with the hole in the matching bracket. Then just insert the linch pins through the holes in the tabs on top to secure the brackets together. To remove the tow bar, simply remove the pins and lift the tow bar off of the brackets. These convenient brackets also make it simple to mount any number of Roadmaster accessories, from basic safety cables to the Guardian rock shield.


If you have MS, MX, or EZ5 base plates, the arms will connect directly to the base plates. Just remove the quick-disconnect brackets from the ends of the arms and you will be left with lugs that fit into the base plate brackets. Once the lugs are set inside of the brackets, simply insert the included pins to secure them in place.

Non-Binding for Simple Disconnect

Freedom Latch

The Freedom Latch makes disconnecting this tow bar a breeze. This latch makes it easy to release the tension that can build up in a telescoping arm when the RV and towed car are not perfectly lined up. Just flip the latch to release the pressure, and the arms will be able to telescope freely, making it easy to disconnect the tow bar from the base plates. This allows you to disconnect even when you're at a hard angle or out of level.

Superior Testing Ensures Excellent Quality

FEA test

This Sterling All-Terrain tow bar has been subjected to rigorous physical and computerized testing to ensure that it meets Roadmaster's exceptionally high standards. Throughout the design process, Finite Elemental Analysis (FEA) is done. Each of these tests display a 3-dimensional image of the tow bar while it is put under thousands of pounds of pressure. Areas of stress in the tow bar can then be located and studied so that those areas can be strengthened. This process is repeated until any weak spots, particularly those found in load-bearing components, are completely removed. The result is a durable, strong, and safe product.

Simple, Secure Storage


The Sterling All Terrain can easily be folded up and stored on the back of your RV when not in use.

Storage Process

After disconnecting the tow bar from your towed vehicle, push the arms of the tow bar together so that they are side by side. Fold the tow bar up toward the RV and the storage latch will automatically lock it in place.

Built-In Cable Guides

Because safety cables and wires all too often tangle and drag, and wrapping them around your tow bar before every use is just no fun, the Sterling features built-in routing channels. These convenient cable guides serve a dual purpose: they keep cords and wires safe and secure, and they create an attractive, streamlined appearance for your towing setup.

Guide to Flat Towing

Flat towing your vehicle is much more convenient than using a trailer or a tow dolly. These other options take up much more storage space, leaving you less room both at home and at the campsite. In addition, securing your vehicle to a trailer or tow dolly can be a hassle and more time consuming than hooking up with a tow bar.

There are 5 basic components needed when flat towing a vehicle: a tow bar, a base plate kit, a safety cable set, tow bar wiring, and a supplemental braking system.

FlatTowing Components

The tow bar links your towed car to your motorhome. It attaches to the custom-fit base plates that install on the frame of your towed car. Safety cables ensure that your towed car does not separate from your motorhome in the event that your tow bar becomes detached. Tow bar wiring allows your towed vehicle's signal lights to sync up with your motorhome's tail lights, which is required by law in most states. Finally, the supplemental braking system - also required in most states - brakes your towed car when the brakes in your motorhome are activated, preventing wear on the motorhome and decreasing braking distance for your entire setup.

576 Road Master Sterling All Terrain Tow Bar with Electric Cord and Cables

Installation Details RM-576 Installation instructions

Customer Satisfaction Score:

Customer Reviews

Roadmaster Sterling All Terrain, Non-Binding Tow Bar - Motorhome Mount - 2" Hitch - 8K - RM-576

Average Customer Rating:  4.9 out of 5 stars   (98 Customer Reviews)

Lightweight and rustproof aluminum tow bar comes with cables and wiring. Hassle-free latches let you easily release your car, even at a hard angle or on unlevel ground. Large hookup radius makes connecting a snap. Easily folds up to store on your RV.


Great product. Everything works's solid, durable and well built. The only complaint I have is the two plated bolts that hold on the tow vehicle knuckles are rusting and look terrible. I'm going to have to paint them I guess.

Thank you for sending the picture that I asked for. It is surprising that they have rusted quickly. Since they are not made of a stainless steel or aluminum they will typically eventually rust. As you stated in your review it will be best to clean them up and then use a rust resistant clear product on the bolts. They are also available for replacement as part # RM-910029
Replacement Base Pins with Chains and Clips for Roadmaster Tow Bars - Qty 2
-- Etrailer Expert Jenny N - 04/18/2022


My second Roadmaster tow bar. Wouldn’t use anything else. Quick connect for the towed vehicle is easy to remove and maintains the original look of towed vehicle. Others can’t tell you tow it by looking at the front


This is my second Roadmaster Tow Bar. I purchased the first one in 2010. It gave us 10 years of great service. However it was ready for a tune up and I just didn’t have the time to do it. This purchase is very similar to the previous one. It has everything needed to get you on the road. It included safety cables with an improved method of connecting it to my toad. It also has a heavy duty electrical cable. I did have one issue. The box was damaged and I was missing one bolt. It wasn’t a big issue, I was able to get another one at the local hardware store. The tow bar is very well constructed and has a great appearance. I’ll be hooking between my Jeep Rubicon Unlimited and my Tiffin Motorhome. Can’t wait to try it out.

Love it. Highly recommend
Robert D - 05/18/2021


I received the Sterling tow bar on time and great condition.It took less than 1hour to install and went great.We can’t wait to hook up and start our exploring retirement.The ease of removal,attachment,and security will make our travels so much easier.Thanks again for your help and a great product!


Very easy to use, hooks up to our Jeep Wrangler in minutes, great product.


INCREDIBLE. What is wrong with this company? One item in my order was on back order with the manufacturer so they called me and asked if I wanted the other items of my shipment to be shipped and the manufacturer would ship directly to me when it was available. I called them back with a concern after a couple of days and Craig communicated with me via email and actually took time to call me to inform the manufacturer actually had my item in stock and it was already shipped. If more companies would learn from etrailer on how to provide customer service, this world be a much better place. THANK YOU


I installed the Roadmaster tow bracket on our 2017 Ford Cmax Energi and am very pleased with the results. The instructions were good, but the video provided by etrailer was outstanding and made the install much easier. Coupled with the excellent Sterling tow bar, it made a challenging install a reasonable proposal. It took me (I am 66 years old) about 5 hours total (not including wiring) to do the physical installation. Way to go etrailer!

I have now towed my car about 8,000 miles and it still works great. Very happy with Roadmaster and etrailer!
Rick C - 02/01/2020


The unit functions great and easy to use. A little disappointed with the corrosion on a few of the fasteners.

I recommend using a quality silicone lubricant to clean the tow bar. You can use any brand name you choose. You will want to avoid using any any harsh abrasive chemicals or instrument that will change the surface of the tow bar, you want that to remain smooth and polished.
-- Etrailer Expert Jenny N - 03/29/2022


works great and does not need the cross member.


Excellent service from Their web site is all about helping with the purchase and the installation. The follow up after the sale is a nice touch as well.

The All Terrain non-binding Freedom Latch is an important improvement in the RoadMaster Sterling model. I had an older model and almost always had to fight with the release when trying to unhook the towed car.

I also had an older model and almost always had to fight with the release when trying to unhook the towed car.The All Terrain non-binding Freedom Latch has solved that problem very well. It is an outstanding improvement in the RoadMaster Sterling model. I have been satisfied with the purchase.
Richard M - 10/07/2014


I purchased because of weight compared to others. I like it. And easy to hook up tow vehicle


It is well made. Light weight aluminum for 8000lb tow rating. Nice to route safety cables in the tow bar arms.


The tow bar is excellent quality and simple to install. Connecting and disconnecting are a breeze. I had the old style tracker tow bar, but had to upgrade for a heavier vehicle. It fits well on a 2015 Jeep Grand Cherokee.

Excellent product. Super Heavy Duty
BobG - 12/08/2017


We are so glad we did the upgrade to this, lot easier to hook & unhook. We would highly recommend this tow bar


One year ago I purchased the equipment to tow my Jeep Grand Cherokee 4 flat behind my motorhome from etrailer. I received the items within 4 days, and was able to do the install myself thanks to the fantastic instructional videos provided by etrailer.
I have towed it from Iowa to Colorado, and several shorter trips. It is easy to
hook up/unhook and tows fantastic. I went with the Roadmaster Sterling tow bar as well as the roadmaster crossbar with removable arms. I would HIGHLY recommend this setup! I also put the roadmaster diode wiring set in the Jeep to use the tail lights. Works flawless! I have used etrailer for several items and have always been completely satisfied. Preston was super helpful in helping me choose the best equipment for my application! Can't go wrong with etrailer!


I love this tow can usually be disconnected no matter what angle the towed vehicle is at. Very easy to connect up also. If it does bind I can free it up by starting the towed vehicle and cycle it into drive momentarily.

Have used numerous times without a single issue. Hookups are very easy and the disconnects are usually the same. Once in awhile if the toad is not perfectly straight in line with the coach it may bind.
Tom R - 01/18/2021


Good tow bar but had recall for stinger


I own an RV and want to pull a Jeep Wrangler on my trips. After a few purchases, I don't look at any other site when I need equipment for my RV or my jeep other than Etrailer. I talk to Cavin and ask for his recommendation on a tow bar, electrical connections, and a base plate. Per his recommendations, I order the parts. I received them in the same week, the following weekend I installed them. The instruction was perfect, everything worked. I was amazed at how easy the installation went.
I highly recommend this company, the people, the instruction and the video, made my job very easy. Thank's


Way better than expected! High grade tow bar love it!


Am very happy with the tow bar. Easy to install and use. This was a replacement for a 20 year old tow bar that I was no longer able to refurbish. This Roadmaster Sterling tow bar is a quality unit


Works as expected. Only problem plugging electric to car sometimes not so great .Overall the Sterling setup is wonderful .

Gary S - 08/21/2021


Smooth, easy hook-ups and disconnect, tows well, no vibration or issues.


First rate two bar. This summer we towed our 2008 Jeep Liberty 4,000 miles behind our motorhome with no problems at all. Really quick to connect and disconnect when needed.


Works great.


Great product. Pull my 2021 Silverado behind my Jayco class C and love the ease of connection and disconnection.

Show More Reviews

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