1. Tow Bar
  2. Roadmaster
  3. Fits Roadmaster Base Plates - Crossbar
  4. Coupler Style
  5. Telescoping
  6. 6000 lbs
Roadmaster StowMaster Tow Bar - Car Mount - 3" Lunette Ring - 6,000 lbs

Roadmaster StowMaster Tow Bar - Car Mount - 3" Lunette Ring - 6,000 lbs

Item # RM-583
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Our Price: $640.52
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Roadmaster Coupler Style - RM-583
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Product Images

In Use/Installed

Product Expert Kristina F

Is this right for you? Product Expert Kristina F says:

Yes, if you:

  • Tow a car behind your truck, semi, or dump truck with a pintle hitch
  • Want an affordable pintle-mount option

No, if you:

  • Tow a larger vehicle or SUV - your loaded down vehicle may exceed the 6,000-lb weight rating
  • Have Roadmaster direct-connect base plates
  • Don’t want to bother with an extra tool to disconnect on unlevel ground
Tow bar with 3" lunette ring has stainless steel, telescoping arms that automatically lock into place. Its large hookup radius lets you connect without perfectly lining up your vehicle. Quick-disconnects make it easy to attach to base plates. Lowest Prices for the best tow bar from Roadmaster. Roadmaster StowMaster Tow Bar - Car Mount - 3" Lunette Ring - 6,000 lbs part number RM-583 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
  • All Info
  • Reviews (66)
  • Q & A (3)
  • Videos (3)
  • Photos
  • Why etrailer?

Roadmaster Tow Bar - RM-583

  • Fits Roadmaster Base Plates - Crossbar
  • Coupler Style
  • Telescoping
  • 6000 lbs
  • Roadmaster
  • Standard
  • Steel
  • Stores on Car

Tow bar with 3" lunette ring has stainless steel, telescoping arms that automatically lock into place. Its large hookup radius lets you connect without perfectly lining up your vehicle. Quick-disconnects make it easy to attach to base plates.


Features:

  • Tow bar lets you tow your vehicle safely and securely behind your motorhome
  • Lunette ring attaches to your pintle hitch for a secure connection that's great for off-road applications
  • Large hookup radius makes connecting a breeze at any angle, even if your vehicle isn't perfectly lined up with your RV
  • Quick-disconnect system lets you quickly and easily mount the tow bar on your towed car
    • Quick-disconnect brackets on tow bar match up with brackets on base plates and are held in place with sturdy pins
  • 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
    • Safety straps inside each arm provide extra security in case the latches malfunction
  • Full-length crossbar with angle iron brace provides maximum strength and support
  • 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
    • Welded steel plugs seal the ends of the tow bar to guard internal components
    • High-tech powder coat finish provides additional durability
  • Simple, secure storage alongside vehicle
    • Just fold up the tow bar and secure it using the collar under the coupler
  • Made in the USA


Specs:

  • Compatibility: works with most Roadmaster EZ, EZ2, EZ4, XL, and Classic vehicle-specific base plates
    • Will not work with MX, MS, or EZ5 base plates
  • Lunette ring diameter: 3"
    • Requires a pintle hitch
  • Arm length (as measured from center of lunetter ring to center of quick-disconnect bar):
    • Extended: 44-1/2"
    • Retracted: 36"
  • Weight capacity: 6,000 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

Quick, 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 StowMaster has stainless steel, telescopic inner arms that adjust independently. In addition, 1 of these arms is 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.


Autowlok

The Autowlok mechanism features a spring-loaded pin that locks the telescoping arms into place for towing. Once the tow bar is connected to both your RV and to the base plates on your towed vehicle, simply drive the RV forward until the tow bar arms fully extend, at which point they will automatically lock into place.


Once you've reached your destination and you're ready to unhook your vehicle, press the release button to disengage the spring-loaded pin. The arms will be able to telescope again, making it easier to disconnect. However, if you're on uneven terrain, or if your towed vehicle is not perfectly aligned behind your RV, chances are you'll experience tow bar binding. This is the result of tension that can build up in the telescoping arm, and it can make it difficult to disconnect your vehicle. Using a release tool (RM-066 - sold separately) will give you the leverage necessary to disconnect.


The internal self-lubricating nylon bushings help to absorb road shock and reduce wear and tear on the tow bar by eliminating friction between the inner and outer arms as they telescope in and out. Inside each arm, a built-in safety strap provides extra peace of mind by ensuring that the inner and outer arms won't separate in the event of a latch failure.


Quick-Disconnects

Quick-Disconnect

Standard on most Roadmaster tow bars, 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.


Superior Testing Ensures Excellent Quality

FEA test

This StowMaster 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 Storage

FOLDED STOWMASTER

The StowMaster can easily be folded up and stored on the front of your towed vehicle when not in use. After disconnecting the tow bar from your RV, push the arms of the tow bar together so that they are side by side and fold them up towards the vehicle. There is a collar under the coupler that fits over a vertical post on the crossbar. This secures the tow bar in the stored position on the front of your car.


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.



583 Road Master Stow Master Pintle-Style Tow Bar with 3" Lunette Ring





Video of Roadmaster StowMaster Tow Bar - Car Mount - 3" Lunette Ring - 6,000 lbs

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




Video Transcript for Roadmaster StowMaster Tow Bar Review

Hi there flat towers. Today we're going to be taking a look at Roadmasters Stowmaster 5000 Tow Bar. This is a Lunette Ring Tow Bar that's available in either a 2-1/2 inch Lunette Ring or a three inch Lunette Ring. There's five main components you'll need when flat towing your vehicle with whatever you want to pull it with, whether it be a motor home or a tractor trailer. You'll need your tow bar, which is the connection between your vehicle and whatever you're towing. You'll need your safety cables, which is a supplemental connection in addition to your tow bar.

You'll need your diode wiring, which takes all the lighting signals from the towing vehicle and sends them to the towed vehicle. And you'll also need your supplemental braking system, which will apply the brakes on your towed vehicle whenever you hit the brakes inside your towing vehicle. And of course, you'll need a base plate for your towed vehicle, which is going to provide the connection point for your tow bar to attach to.Now your traditional tow bars are just going to fit right into the receiver on the hitch on the back of your vehicle. But with this style, having a Lunette Ring, you'll need a pintel hitch to attach it to. This is nice because many of your tow bars that just go in here, they don't provide any adjustment up or down, and they can be fairly costly to get an adapter, a high-low adapter.

Most of your high-low adapters are only going to provide a set position, which really is not a huge deal because once you know what your position is going to be, you've got it.But if you ever change motor homes or vehicles down the road, you then need to readjust for that setup. With a pintel hitch, you can get an adjustable pintel hitch and be able to make those adjustments on the fly. That's particularly useful for our customer here, because he delivers vehicles and the Jeep here that we've got hooked up to our tow bar is what he pulls along with them. It's his personal vehicle. So he delivers the vehicle, pull in his Jeep, and then when he goes to deliver the next one, he can easily move these things over to move the next vehicle while bringing his Jeep along the whole time.If you need a pintel hitch, you can get one at etrailer.com here.

We're using BMW's Tow and Stow, which has a maximum towing capacity of 16,000 pounds, so it should be more than enough than just about anything you plan on doing with it.So what's really nice about having a Lunette Ring tow bar is that you can just take your pintel hitch, go on to the next vehicle and you can hook right up and get to your next destination. And I also like that this tow bar is designed to stay with the vehicle rather than your motor home, like your traditional tow bars. Since with this particular setup, you're mostly going to be moving, it's nice to be able to just pack everything up here and hit the road or hook back up to whatever you need to. With those other styles, the storage positions are designed to be on that side, so you have to disconnect it and put it in the back of your vehicle and move it around. And tow bars are pretty heavy.

It's pretty nice to be able to just fold this up and click it in place and move on.This tow bar is rated for 6,000 pounds, so it's going to be more than enough for the Jeep that we're pulling here, but it'll also be fine for most of your smaller trucks, your mid-size SUVs, and just about all of your cars out there. The only one that it might some problems with is your larger trucks.This tow bard's also going to be great for off-roading. The Lunette Ring will give us plenty of movement here, so we don't have to worry about getting into a strange position where our ball and coupler might bind up. And there's a lot of off-road equipment that used pintel hitch hookups already. I know around the farm, we've got plenty of this stuff here. So if we we're just wanting to move it around, this is a quick, easy way to hook it up and just move it around.And when you go to takeoff, the tow bar is going to be self-aligning. You'll notice here that the arms are going to extend out and the vehicle is going to track and lock-in right behind us.Now one of the things you want to keep in mind is that this is a binding tow bar. And what that means is that if our towing vehicle and our towed vehicle aren't sitting on perfect level ground, they can get bound up and it can be very difficult to get everything to release. The buttons here on top are the release buttons to allow the arms to retract, but being just a small button like this, it's very difficult to press them down. Now this one I can press down cause this one's not locked up, but we just got done driving the vehicle around. And this one over here is all locked up tight. And if we go to try to pull the tow bar off, I can not get it off of there, because we are all bound up.Now there is a tool available from Roadmaster that will give you a small hook on the bottom that acts as a lever to press this down to get it released. But if you're in a pinch, you can use a hammer or a mallet, or maybe just another ball mount that you got laying around. And now with that released, we can go ahead and disconnect. Make sure that you apply the parking brake in your vehicle before you disconnect.And now that we've raised it up, we'll put it in its storage position. The same levers that release there, we'll press on those to let our arms retract in. And the arm on the driver's side will actually slide over to the passenger side, collapse in, and it will rest down through the slot right here where we can insert the pin and lock it in place. I will say this pin is a little bit stiff. It should wear out over time and become a little bit easier to get on there. And with our tow bar all wrapped up here, we just need to disconnect the rest of our cables, store them in the vehicle and we're ready for the next job or the next time we're ready to head out.And that completes our look at Roadmasters Stowmaster 5,000 Lunette Ring Tow Bar.


Customer Reviews

Roadmaster StowMaster Tow Bar - Car Mount - 3" Lunette Ring - 6,000 lbs - RM-583

Average Customer Rating:  4.9 out of 5 stars   (66 Customer Reviews)

Tow bar with 3" lunette ring has stainless steel, telescoping arms that automatically lock into place. Its large hookup radius lets you connect without perfectly lining up your vehicle. Quick-disconnects make it easy to attach to base plates.

- RM-583
by:

Very satisfied with my etrailer experience William was very professional and knowledgeable I will definitely be a return customer



- RM-583
by:

Great prices super fast shipping



- RM-583
by:

Came quick, fit perfect



- RM-583
by:



- RM-583
by:



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


If you are thinking of towing a car this is the company to see. Just installed a base plate and tow bar to my Toyota. Took just 2 hours. With the video and instructions, no problems, very easy. Customer support excellent, very helpful. If you don’t think that you can do this install yourself, think again. I would recommend this tow bar, with the telescoping arms connecting to the car is very simple and secure. This is a 5 star product. Thank You



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


The StowMaster Tow Bar works great. We used to trailer our jeep behind the motorhome, but now wouldn't do it any other way. The tow bar makes for a way better towing experience.



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


It was a tough installation, but we got it installed. The tow bar works well. It takes some strength to attach to a the ball on my RV.


Comments
Only used it twice. It worked fine when I was towing a four door Jeep. Releasing the tow bar took some muscle.
BJ C - 01/11/2021


- RM-501
by:

Review from a similar Stowmaster in Tow Bar


This product is well made and well engineered. It performs the functions of allowing a reasonable amount of flexibility in coupler/ball alignment, locking into place, smooth vehicle towing and securing into the "stowed" position. Because of my bumper mounted winch, I needed to make some adaptations to the mounting system which the RM-501 accommodated very well. I am very pleased with this purchase. I will send a couple of installed pictures by seperate email.



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


Love this tow bar! Relatively easy to install. Super easy to hook up to towing vehicle! Stows nicely on front of vehicle being towed.



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


Bought this from Etrailer with all the supporting hardware needed to flat tow my Durango. The quality is excellent (stainless steel, very strong), the install was pretty easy. Only issues I had were because of the are of my vehicle. Towing with it and hooking up is simple. It takes only a minute to go from stowed to hooked up. Etrailer.com was easy to deal with, helpful, and shipping was very fast. This is my second order with them, both have been flawless. Their pricing also proved to be the lowest.



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


I've used this on my Honda and it works fantastic. I also have a set up to use with my FJ Cruiser, looking forward to using it there also.



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


Appears to be a high quality product, that came with good instructions, and all the parts for installation on the base plate already installed on my Honda Fit. This will allow me to flat tow the car behind my class A motor home.


Comments
The road master tow bar is still functioning properly with no issues, a safe,reliable well made product.
Frank - 07/20/2020


- RM-504
by:

Review from a similar Stowmaster in Tow Bar


Nice, solid product. Easy to install and remove. Sliding action is very smooth, easy to extend and fold. My hitch coupler is slightly different design than shown but seems very heavy duty.



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


Seems to be a good solid tow bar; no problems, easy to hook up tow vehicle by myself.



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


This tow bar with the base plate and rock guard is the finest set up I have seen for towing a rig behind a RV. Combined with the patriot brake system and magnetic light system makes me ready to go in style with safety. I'm a happy boy!



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


Arrived on time, fit as promised, good quality parts, performs as expected. Really, what more can you ask for?



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


I am pulling a Jeep behind a pickup camper so I don’t have a place to stow the tow bar like a motor home. This tow bar folds nicely and fits on the front of a Jeep well.



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


Love this towbar. By myself, I can hook up to my motorhome and be ready to hit the road in 10 minutes .



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


Absolutely love my Roadmaster tow bar from etrailer.com. Easy to hook up and easy to unhook, a great edition to our camping gear!!! Thanks etrailer.com great price and great service!!



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


This is a very well made hitch. It was very easy to fit, is very robust and very easy to fold away. I bought the optional cover which makes the unit very neat when not in use.



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


Works like a charm as advertised. Easy install and use.



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


I will open the box when the rest of the delivery is compleat , please keep me updated, thank you



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


Went in easy and works great.



- RM-501
by:

Review from a similar Stowmaster in Tow Bar


The tow bar works as advertised


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Ask the Experts about this Roadmaster Tow Bar

  • Roadmaster Tow Bar Compatibility With 1990 Chevy Suburban
    The Roadmaster StowMaster Tow Bar - Car Mount - 3" Lunette Ring - 6,000 lbs # RM-583 can be used to tow a 1990 Chevy Suburban. It will work well with the Roadmaster Crossbar-Style Base Plate Kit - Fixed Arms # 108-1 and safety cables # RM-643. I also recommend the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267, and the Demco SBS Stay-IN-Play DUO Supplemental Braking System - Proportional # SM99251. You will also need to make sure the pintle hitch you use to pull...
    view full answer...
  • Lunette Ring Tow Bar Recommendation for Flat Towing 2004 Chevy Silverado
    For a tow bar we have the Roadmaster Stowmaster part # RM-583 which has a 6k capacity and uses a 3 inch Lunette ring. So then for a base plate kit you'd want the part # 3115-1 for if you have a 1500HD, 2500HD, or 3500HD. If you have a 1500LD Z71 you'd want the part # 199-5 or part # 199-10 for if you have a 1500LD that's not a Z71. For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight housing. This will splice into your taillight...
    view full answer...
  • Availability of Adapter to Connect Roadmaster StowMaster Tow Bar to Blue Ox Base Plates
    Blue Ox Base Plates, such as the Base Plate Kit # BX1709 that is confirmed to fit your 2007 Chevy TrailBlazer, are designed for use with motor home mounted tow bars only. Since the Roadmaster StowMaster Tow Bar # RM-583 that you referenced is a coupler/vehicle mounted tow bar, there is not an adapter available that will allow it to fit the Blue Ox Base Plates on your vehicle. Since you already have Blue Ox base plates installed on your vehicle, your best option will be to go with a Blue...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
Joshua S
Employee Dustin K
Video by:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Shelly K
Updated by:
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Employee Kristina F
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Kristina F
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Updated by:
Mike S
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Updated by:
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Employee Amanda M
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Test Fit:
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