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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 # RM-1109-173
Our Price: $403.99
Anti-Sway Bars

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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 RM-1109-173 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 - RM-1109-173

  • Anti-Sway Bar
  • Rear
  • Roadmaster
  • 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
  • Works with front anti-sway bar (sold separately) for absolute stability - available on certain applications only
  • 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.



1109-173 Road Master Anti-Sway Bar - Rear

Installation Details RM-1109-173 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter - RM-1109-173

Average Customer Rating:  4.8 out of 5 stars   (1928 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:

Very nice High Quality Anti-Sway Bar!
I
picked up the end links and fabricated the frame mounts for the end links.
Turned out great and made a very significant improvement in the ride and stability.



by:
Roadmaster

Looks very well built, as is with all the Roadmaster products I have used.



by:
2021 Chevrolet Express Van

I recently installed front and rear anti sway bars purchased from e trailor on my 2021 chevy express class c. The order was processed and shipped immediately and arrived within a couple of days. They were easy to install, I was able to do it without help. Although I have not been able to test them thoroughly yet so far they seem to cut back on the bouncing and rolling that was occurring with the OEM parts. I plan to purchase upgraded shocks from e trailor as my next update. —joe



by:

Fast shipping! Exactly what I needed. Knowledge staff! Thanks Justin! Will be ordering more from etrailer.



by:



by:
2015 Chevrolet Express Van



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:

All the contents were delivered in the package. The kit fit perfectly as designed. Ordered for a Ford F-350 Super Duty. Truck handles great!



by:

Was told from etrailer that this was going to be a quick plug and play but no this was to be installed on a class c ( no drilling) but no , ustraps had to be adjusted did not fit and struts would not reach had to drill chasis



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:

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:

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:

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:

I am happy to finally have the rear anti-sway bar installed. Noticed the difference right away. I will order the front anti-sway bar soon. I have the skills to install the anti-sway bar, but did not have the heavy tools to do the job. Paided a local shop 2hrs labour, well worth it.



by:

I watched your video on the installation of the rear sway bar which I found to be helpful. I used an adjustable strap to level the sway bar before aligning and drilling for the links. Looking forward to a road test soon. Thank You



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:

Your installation video was helpful. The front bolts on the the hangers required heating to break them loose. The factory was generous with blue lock tite. I might add the front bolts require a 18mm socket. Looking forward for a road test. Thank You always



by:

Haven't opened the stabilizer bars but I did open the Sumo Springs and the Snap Pads. All seemed to be there in good condition.



by:

The sway bar is good quality and probably does help with the cornering and the wind buffing from the semi trucks on the freeway.
The negative side is the bolts supplied adapter kit were under sized diameter to the point of ratting when you walked back and forth in the camper. To correct the problem I had to drill the poorly punched holes in the shackle to a true 1/2" then purchase new bolts and lock nuts that fit the bushings. After all the labor and expenses the sway bar has worked as intended with no noise. The other thing I had not considered was how much traction you loose on uneven ground but that is the trade off with better highway control.



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:

I didn’t realize our motorhome had an OEM sway bar already installed which was left in place. Etrailer selected one for us that was heavier and more appropriate for our unit. Instructions were a bit to be desired but once installed made a world of difference. Their staff is very knowledgeable and didn’t try to sell me more than I needed. Thank you Etrailer.



by:

The antisway bar I purchased was relatively easy to install, and the service department was quick to respond to inquiries. It made a dramatic improvement in driving the motorhome, handling in wind, curves and semi truck winds was quite improved.



by:

This sway bar works great even with an 11-foot truck camper loaded on it.


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

  • Suspension Enhancement Options For A 2024 Chevy 3500 Class C Motorhome
    Hi Shannon, To help with handling and body sway you can install anti-sway bars, a steering stabilizer, an some jounce springs. With this vehicle being so new there currently isn't a front anti-sway bar, steering stabilizer, or jounce spring confirmed to fit yet, but there is a rear anti-sway bar available with part # RM-1109-173 if you have a factory rear anti-sway bar or the # RM95GR if you do not. You should have some coil springs up front that you could stiffen up with some Coil...
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  • Sway Bar Options For 2018 Chevy Express Van
    For your 2018 Chevy Express Van 4500 you have both a front # RM-1109-149 and a rear # RM-1109-173 sway bar option. For the rear sway bar take a look to see what set up you currently have and choose between # RM-1109-173 or # RM-1109-175 to match what you have. Dave does a great job explaining the benefits and goes over the installation of the front sway bar so be sure to check out the video I've included for you!
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  • Steering Stabilizer and Sway Bar Fit for 2017 Chevy 4500 Class C Motorhome Chassis
    The correct steering stabilizer from Roadmaster that fits your 2017 Chevy 4500 chassis Class C motorhome is the Reflex part # RM-RBK23-RSSC. Then for sway bars the correct part numbers are the # RM-1109-149 for the front and part # RM-1109-173 for the rear and you'd be set. Your ride quality, stability, and ease of driving will be drastically improved.
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  • 2020 Chevy 4500 RV Motor Home Sunseeker Sway Bar Fits
    For your 2020 Forest River Sunseeker built on a Chevy 4500 chassis the Roadmaster rear sway bar part # RM-1109-173 is the correct fit, and then for a front bar part # RM-1109-149. We can help with a slide out awning as well but I would need you to get me the flange to flange outside dimensions of your slide out so that I can pick out the correct size.
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  • How To Combat Sway When Driving 2019 Chevy 3500 Express Van
    To prevent the sway you are feeling in your 2019 Chevrolet 3500 Express Van I recommend adding the Roadmaster Rear Anti-Sway Bar # RM-1109-173 as it will really tighten up the feel of your van while on the road. The SumoSprings do help some with sway and body roll, but are more designed to support your suspension. On the other hand anti-sway bars like the # RM-1109-173 are only designed to fight sway, and make a night and day difference. There is not a plate available to bolt to your...
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  • Anti-Sway Bars That Fit 2021 Chevy Express 4500 Class C Motorhome
    We do have the front and rear anti-sway bars that are a confirmed fit for your 2021 Chevy Express 4500 Class C motorhome, with the correct fits being the following: - Roadmaster Rear Anti-Sway Bar # RM-1109-173 - Roadmaster Front Anti-Sway Bar # RM-1109-149 These sway bars made of higher-strength, thicker steel than OEM sway bars, with much greater roll stiffness to combat sway, which allows for the greatest improvement in handling. The combination of these anti-sway bars is going to...
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  • Rear Anti-Sway Bar For A 2013 Chevy Express Van
    Since the Roadmaster Rear Anti-Sway Bar Item # RM-1109-173 is meant for as a stock sway bar replacement we don't carry the brackets but we do have a confirmed fitting sway bar with the brackets together - Roadmaster Rear Anti-Sway Bar Item # RM-1109-175.
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  • Difference In OEM And Aftermarket Anti Sway Bars / Recommended Fit For A 2016 Sunseeker 2860 DS
    Aftermarket sway bars are stiffer than OEM sway bars and many come with polyurethane or hybrid bushings. Anti-sway bars are mainly to reduce body roll while cornering while the steering stabilizer's primary function is to dampen or stabilize the side to side movement of the wheels in much the same way shock absorbers limiting excessive suspension movement & oscillation. Both will offer better handling and less body roll for a smoother and safer ride. The correct fitting anti-sway bars...
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Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Dustin K
Video Edited:
Dustin K
Employee John S
Video Edited:
John S
Employee Wilson B
Updated by:
Wilson B
Employee Isabelle B
Updated by:
Isabelle B
Employee Sabrina W
Updated by:
Sabrina W

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