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  1. Anti-Sway Bars
  2. Roadmaster
  3. Anti-Sway Bar
  4. Rear
  5. 1-1/2 Inch Diameter
  6. Steel w Polyurethane Bushing
Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter

Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter

Item # RM43VR
Our Price: $542.33
Anti-Sway Bars

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Shipping Weight: 28 lbs
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Minimize sway and driver fatigue by improving the stability and driveability of your vehicle. The bar on this sturdy, effective anti-sway system mounts to the rear axle and to the frame to balance weight transfer and reduce body roll. 1-800-940-8924 to order Roadmaster anti-sway bars part number RM43VR or order online at etrailer.com. Free expert support on all Roadmaster products. Great prices and Fastest Shipping for Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter. Anti-Sway Bars reviews from real customers.
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Roadmaster Anti-Sway Bars - RM43VR

  • Anti-Sway Bar
  • Roadmaster
  • Rear
  • 1-1/2 Inch Diameter
  • Steel w Polyurethane Bushing

Minimize sway and driver fatigue by improving the stability and driveability of your vehicle. The bar on this sturdy, effective anti-sway system mounts to the rear axle and to the frame to balance weight transfer and reduce body roll.


Features:

  • Minimizes side-to-side movement to improve overall stability of your vehicle
    • Lets you execute turns and quick maneuvers with confidence
    • Allows for a level ride, even on irregular surfaces
    • Reduces driver fatigue - minimizes effort required to keep your vehicle in line
  • Diminishes effects of crosswinds, passing motorists and shifting cargo
  • Designed to fit your vehicle and work in conjunction with its suspension system
    • Attaches to rear axle and to chassis - uses weight of axle to brace frame as it shifts in turns
    • Engineered to avoid interference with most popular aftermarket add-ons and accessories
  • Made with polyurethane bushings instead of the standard rubber variety for a longer-lasting system
    • Polyurethane is durable and resistant to damage caused by oil, gasoline and ozone
    • Less wear means less give in the system and better support
  • Constructed of thick 4140 chromoly steel for superior strength
  • Includes heavy-gauge mounting hardware, easy-to-follow instructions and bushing lubricant
  • Made in the USA


Specs:

  • Bar diameter: 1-1/2"
  • Limited Lifetime Warranty


Roadmaster Anti-Sway Bar Installed

Benefits of an Anti-Sway System

The Roadmaster anti-sway bar does for side-to-side movement what a good pair of shocks does for up-and-down motion. You will notice a marked improvement in your vehicle's stability as the bar works to balance weight transfer and reduce body roll. The anti-sway bar acts as a link between your vehicle's frame and its rear axle, using the axle as a brace to more effectively balance the shifting weight of your vehicle as you maneuver it. Lubricated bushings allow just enough pivot and rotation to compensate for the pressure placed on one side of your vehicle when it goes into sudden maneuvers, hits crosswinds or encounters shifting weights.


Roadmaster Anti-Sway Polyurethane Bushings

Superior Construction

The Roadmaster anti-sway bar is made of 4140 chromoly, a chromium and molybdenum steel alloy. This type of steel is considerably harder and stronger than the standard 1020 steel that is typically used in anti-sway applications. In addition, the larger diameter of the bar increases its torsional roll stiffness. The result is a bar that is not only stronger than the competition, but also nearly 30 percent better at resisting sway. The polyurethane bushings and grommets used at the attachment points are durable yet flexible, ensuring that the system is neither so rigid nor so malleable that it becomes ineffective.



1209-110 Road Master Anti-Sway Bar - Rear

Installation Details RM43VR Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter - RM43VR

Average Customer Rating:  4.8 out of 5 stars   (1859 Customer Reviews)

Minimize sway and driver fatigue by improving the stability and driveability of your vehicle. The bar on this sturdy, effective anti-sway system mounts to the rear axle and to the frame to balance weight transfer and reduce body roll.

by:

Good service answer all my questions



by:

Minimized the sway making for a safer r ide.



by:
2023 Mercedes-Benz Sprinter 3500



by:
2020 Mercedes-Benz Sprinter 3500



by:
2019 Mercedes-Benz Sprinter 3500



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by:
2022 Winnebago Navion Motorhome



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by:

I have a 2017 Ford F350 Super Duty SRW, and we haul a heavy truck camper (Lance 1055.) I have Stable Load Uppers and HD airbags, but wanted to add a sway bar to add that extra layer of control, even though my truck has handled the camper well over the last 2 years and 10,000 miles. My truck did not come with an OEM sway bar installed, so I needed this kit that included the End Links too.

The Roadmaster Rear Sway Bar and End Links sold on etrailer are top quality products. They are robust and well made, with quality hardware to match. The product deserves a 5-star, and even unloaded, my truck handling improved right after installation, with improved cornering and no real impact on ride quality in my opinion. I have not yet loaded up our camper or towed our boat, but I have no doubt this sway bar will substantially reduce sway and will improve control and handling when the camper is loaded.

So why 4 stars and not 5?

1. I researched this product and the installation in detail. I planned on installing it myself and expected to find plenty of detail on etrailer's site, or Roadmaster's site, or the internet. My most pressing question was about where to mount the end links, and the orientation of the sway bar arms since I wouldn't be using the OEM end links. That information was no where to be found on the etrailer site, Roadmaster's site, or in any installation manuals. For a product and supplier that has likely sold lots of these to Ford Super Duty owners, I was surprised to find how little info was out there. The installation video on the etrailer site was helpful, but did not include any information for the end links, as they had a 2015 Super Duty and used the OEM end links already installed. I contacted etrailer and they told me to contact Roadmaster for more info on where to locate the end links with this kit.

2. I contacted Roadmaster. They told me they had no instructions and that despite my truck already having the cut-outs for the OEM bracket that attaches the OEM end links to the frame, that none of those holes may work for me. So they suggested I connect the sway bar brackets to the axle first and then see where the arms would line up with the end links. The tech also suggested that it wasn't critical that the end links were perpendicular
to the frame, but that I should try install the end links to allow the arm of the sway bar to hand as close to parallel as possible. No bueno. When I installed this the 14" end links (center hole to center hole) didn't allow for the arms to hang parallel to the frame. And I don't think it matters as the orientation of my sway bar and the arms looks about like every video or picture I could find on the internet of this year/model truck and this sway bar kit. It seems to function fine.

3. Installing it was a bear, especially the way they instructed me to. And I had to make some modifications to fit my truck, as the sway bar arms were rubbing up against my airbag mounting brackets. I got it installed, but the thin instructions turned what should have been a 60 minute job into 2 1/2 hours. A bit frustrating.

All in all, this will do the job intended and will provide me with peace of mind next time we load our camper. I am a bit frustrated that there were zero installation instructions specific to my year/make/model of truck given it did not have an OEM sway bar and the end links had to be installed with a bit of guesswork. You will also note in my pictures that I had to mount the end links to the sway bar arms differently on each side to make the bar fit around my air bag mounts.



by:

Fairly easy install. Drilling the hole in the frame was decent started with a 17/64 pilot hole then the 17/32 final hole. Take your time and let the drill do the work.
Do be aware of the hole placement on the drivers side as there are brake lines and wiring there.



by:

This product arrived on time, and is as described in company literature. I have installed the sway bars and the sumo springs on my 2019 Ford E3 26 foot Thor motorhome. Installation is fairly straightforward. Having said that, I am a retired farmer and I am quite familiar with this type of work. Having the proper tools makes the job go much quicker and easier. Installation of the front sway bar took a little under an hour. The rear sway bar is a bit more complicated to install, but he can be easily accomplished by someone of average mechanical skills, equipped with the proper tools. I strongly recommend removing the rear wheels to facilitate installation of the springs and the sway bar. I have not driven my motorhome yet, but will be taking an extended trip in March. I am looking forward to an improved ride.



by:

OH My! If you are thinking about getting one for your P32 wide body. Please don’t hesitate. It REALLY Works. Take the white knuckle effect out of driving. EASY installation! Easy Ordering from etrailer. Roger helped me get through the buying process and shipped to my house in 2 days! Thank You!!



by:

Solid-built sway bar. Helps stabilize in wind while driving. Using on 2016 Thor Vegas 25.3 RV, notorious for suspension and driving issues. Using front anti-sway bar as well with Safe-T-Plus steering stabilizer.



by:

This sway bar is the real deal. Easy to follow instructions but I had it installed because I'm lazy. It took one hour labor



by:

Very heavy duty sway bar. Using it on a 2016 Thor Vegas 25.3 RV. Much thicker than original and still holding up fine. Helps to stabilize in high winds and passing trucks. Also added the Safe-T-Plus stabilizer to keep wheels from wandering.



by:

First, Eric was a great help throughout the purchasing and installation. I watched the tutorial numerous times and set up my tools. I bought a 3/4 inch torque wrench at Harbor Freight and a 4 ft galvanized pipe at Home Depot. I followed the instructions and the tutorial to the letter. The bar and mounting plates are heavy, so be very careful. This job isn't for a beginner, but if you are somewhat mechanically inclined, you can install it. The 300 Ft. Lbs torque of the 8 nuts took everything out of me. LOL...I adjusted the end links twice, and it leveled out great. Now, I will do a test run and see how it improves the handling of my motorhome. Its a 2022 Entegra Vision 29S.



by:

This should have been original equipment.It ( 1995 Safari Trek) now drives like a completely different vehicle! I added Sumo Springs on the rear .These 2 items together are well the money. I installed both alone by myself (67 years young).



by:

Replaced the anti-sway bar on our 2019 F350. No special tools or jacks needed for the installation. Now our Lance 850 truck camper doesn’t sway nearly as much as before. Big improvement. Very pleased!



by:

The last thing to upgrade my front suspension on my 2018 Winnebago Aspect 27k. Money well spent! Easy installation, the ride greatly improved. Etrailer shipped this fast and I'm very pleased. Thanks.



by:

Major driving experience I upgrades my 2020 Thor Motor Coach KW-29 with front & rear sway bar, front steering stabilizer shock, All 4 front/rear Koni shocks, & Rear End stabilizer to chassis all together best investment on my RV improvement handling, body sway when 18 wheeler passing u up minimizing body sway from minor to none at all, reduce fatigue while driving course correcting steering reducing stress. Each component was felt the improvement but all together it’s been major improvement & experience



by:

Free from the roller-coaster ride my 2022 thor motorhome had with the factory bars.I have questions about why these companies don't install the suspension while building the rv.



by:

E trailer is.my go to place for anything towing trailering etc Absolutely the best products as well and the best service and the best people!!!!



by:

I installed both front and rear Road Master anti sway bars on our last RV and they made a tremendous improvement in handling. It was easy for me to install by myself in my driveway on out Coachman Leprechaun 319MB. I highly recommend this product.



by:

Item shipped quickly and the installation was fairly easy in my opinion. Have not been able to drive the RV yet but I'm sure this upgrade will improve the handling.



by:

After reading all the information regarding fitment for my 2001 Freightliner Chassis I purchased this rear anti sway bar kit which had a side note stating that if your chassis had different u bolts, which my chassis does I could contact Roadmaster engineering direct for the correct parts. I did contact them directly and they referred me to e trailer, who referred me to Roadmaster, pass the buck game. So after a year I have a half installed anti sway bar kit that is useless and unreturnable because it was half installed waiting for answers that never came. A waste of my time and hard-earned money NOT HAPPY.


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See what our Experts say about this Roadmaster Anti-Sway Bars

  • Recommended Anti-Sway Bar For A 2021 Mercedes-Benz Sprinter 3500
    If your 2021 Mercedes-Benz Sprinter 3500 is a van then yes, the Roadmaster Rear Anti-Sway Bar # RM43VR is the only compatible option. If your 2021 Mercedes-Benz Sprinter 3500 is a Class C motorhome then you also have the option of the Roadmaster Rear Anti-Sway Bar # RM-1209-131. The real difference between these anti-sway bars and the factory sway bar that came on your Sprinter is the thickness of the bars and the polyurethane bushings, which last longer than the factory rubber bushings....
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  • Anti-Sway Bars for 2020 Sprinter 3500
    I reached out to my contact at Roadmaster regarding your 2020 Sprinter 3500 and he said they only carry a replacement # RM43VR Rear Anti-Sway Bar. Since this is replacing the factory anti-sway bar with a thicker and more rigid bar, it is hard to imagine it causing a problem since it goes in the same location. They do not make anything for front anti-sway or a steering stabilizer. I hope this information is helpful.
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  • Recommended Suspension Enhancement For 2022 Thor Daybreak On 2022 Mercedes-Benz Sprinter 3500
    I recommend using the SumoSprings Solo Custom Helper Springs for the Front Axle # SSF-106-47 and the Rear Axle # SSR-338-47. These will help improve ride quality by adding additional support to the factory suspension on your 2022 Mercedes-Benz Sprinter 3500 Chassis. Since the springs are progressive they will also help the shocks to reduce road vibration and shock that can cause damage to the components in your 2022 Thor Daybreak. The Roadmaster Rear Anti-Sway Bar # RM-1209-131 is an...
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  • Will Installing A Sway Bar On A 2020 Mercedes-Benz Sprinter 3500 Void The Warranty?
    Installing the Roadmaster Rear Anti-Sway Bar # RM-1209-131 will not void your warranty. Stuff like this is protected under the Magnuson-Moss warranty act. This states that unless the part added actually causes a problem, then installation and use of the part will not void the warranty. That said, the correct sway bar will depend on your vehicle. I see you entered a 2020 Mercedes-Benz Sprinter 3500 and there are two options available for this vehicle. I have both listed below. Cargo Van...
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  • Suspension Upgrades for a 2022 Thor Quantum MB24 RV to Help with Sway, Road Shock and Roll
    We have the products that you need for your 2022 Thor Quantum MB24 RV to help with the conditions you described. The Roadmaster Rear Anti-Sway Bar # RM43VR will help to minimize sway and reduce side to side movement. It diminishes the effects of crosswinds, passing motorists and shifting cargo. The Timbren Front Suspension Enhancement System # TMBFSP35 and Timbren Rear Suspension Enhancement System # TMBRSP35A will help to absorb road shock, improves roll stability and helps reduce sag. Not...
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    Image 1 for Image 2 for
  • Which Roadmaster Sway Bar Fits 2018 Mercedes Sprinter 3500
    I really apologize for the confusion but our part # RM43VR is the Roadmaster part number 1209-110 that you are wanting. We changed the part number to something unique for us for a reason that I don't necessarily agree with because it's confusing but I can assure you this is the sway bar you are looking for.
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  • What Anti-Sway Bar for a 2021 Entegra Qwest 24R
    For your 2021 Entegra Qwest 24R that is built on a 2021 Mercedes Benz Sprinter 3500 you'd want the Roadmaster sway bar part # RM43VR.
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  • Anti-Sway Bars For a 2023 Tiffin Wayfarer 25RW on 2022 Mercedes Sprinter 3500 Chassis
    Based on the information I could find on your 2022 Mercedes Sprinter 3500 cab and chassis it appears to come with a 1-1/2" rear sway bar. The Roadmaster Rear Anti-Sway Bar # RM43VR you found is designed to replace the factory bar but is a stronger steel than the factory unit so it will not flex as much. We do have the Auxiliary Sway Bar # RM-1209-131 which will mount in addition to the factory sway bar and can also be used with Bar # RM43VR above to give you the best reduction in sway.
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  • Recommended Rear Anti-Sway Bar for 2022 Winnebago View 24D
    The Roadmaster Rear Anti-Sway Bar, # RM43VR is confirmed to fit your 2022 Mercedes-Benz Sprinter 3500. This is the etrailer.com site part number for the Roadmaster PN of 1209-110. You are looking at the same item, and definitely the best option on market for your vehicle. This Roadmaster anti-sway bar is made of 4140 chromoly which is considerably harder and stronger than the standard 1020 steel commonly used in OEM installed components. In addition, this has a larger diameter that also...
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  • Sway Bar Recommendation for 2021 Mercedes Sprinter 3500 Forest River Class C
    The best way to get rid of the sway you are experiencing with your 2021 Forest River Class C built on a Mercedes Sprinter chassis is with a Roadmaster rear sway bar part # RM43VR. This will do an excellent job getting rid of sway and body roll and would make the biggest improvement compared to other options.
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  • Sway Bars For a 2021 Winnebago Navion Class C RV On Mercedes 3500 Chassis
    For your 2021 Winnebago Navion being on a Sprinter 3500 class C chassis we have the Roadmaster Rear Anti-Sway Bar # RM43VR. This is a stronger replacement for the factory sway bar. This can be used with the Roadmaster Rear Anti-Sway Bar # RM-1209-131 which is a 2nd rear sway bar for the rear suspension. We currently do not carry the Hellwig brand.
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Do you have a question about this Anti-Sway Bar?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Mike S
Written by:
Mike S
Employee Sabrina W
Updated by:
Sabrina W

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