Roadmaster Rear Anti-Sway Bar - 1-3/8" Diameter
(1849 reviews)
Price: $526.54
Roadmaster Rear Anti-Sway Bar - 1-3/8" Diameter
Item # RM-1109-150
Our Price: $526.54
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- Reviews (1849)
- Q & A (0)
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Roadmaster Anti-Sway Bars - RM-1109-150
- Anti-Sway Bar
- Roadmaster
- Rear
- 1-3/8 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: 1-3/8"
- Limited Lifetime Warranty
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.
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.
1109-150 Road Master Anti-Sway Bar - Rear
Replaces RM-1109-148
Installation Details
This Product Fits The Following Vehicles
- 2018 - 2019 Thor Chateau Motorhome 2500 and 3500 - Class C or Emergency Vehicle Cutaway
- 2008 - 2018 Chevrolet Express Van 2500 and 3500 - Class C or Emergency Vehicle Cutaway
- 2018 - 2018 Thor Four Winds Motorhome 2500 and 3500 - Class C or Emergency Vehicle Cutaway
- 2009 - 2011 Coachmen Freelander Motorhome 2500 and 3500 - Class C or Emergency Vehicle Cutaway
- 2009 - 2010 Forest River Lexington Motorhome 2500 and 3500 - Class C or Emergency Vehicle Cutaway
- 2014 - 2014 Winnebago Minnie Winnie Motorhome 2500 and 3500 - Class C or Emergency Vehicle Cutaway
- 2018 - 2019 Thor Quantum Motorhome 2500 and 3500 - Class C or Emergency Vehicle Cutaway
- 2008 - 2018 GMC Savana Van 2500 and 3500 - Class C or Emergency Vehicle Cutaway
- 2014 - 2014 Itasca Spirit Motorhome 2500 and 3500 - Class C or Emergency Vehicle Cutaway
- 2008 - 2018 Workhorse Truck 3500 - Cutaway, Class C
Customer Satisfaction Score:
91% were satisfied with this product
9% of customers were not satisfied
- etrailer mistake
Customer Reviews
Roadmaster Rear Anti-Sway Bar - 1-3/8" Diameter - RM-1109-150
Average Customer Rating: 4.8 out of 5 stars (1848 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: Richard 10/28/2022
Great addition to my class b rv. Improves handling and stability noticeably, minimal impact on ride quality. Combined with a 1 3/8 front bar the van handles like a sports sedan! Good instructions and relatively easy install, some brackets did not exactly match in my application but were easy to modify.
by: Chris 06/24/2022
Ram 3500
Great add on to my Class C RV. Easy to install with a friend. The only problem I encountered was the exhaust pipe had to be moved over about 2” because the bushings rubbed against it. I have a 2020 Chevy 3500 Chassis. After the movement of the exhaust, worked perfectly
by: Larry M.03/03/2023
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: Terry04/02/2023
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: Neal02/09/2023
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: Ernest10/26/2022
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: Michael11/03/2022
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: John03/01/2024
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: Bill 04/18/2023
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: Jose 04/21/2024
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: Earl 04/15/2023
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: John 04/16/2023
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: Tony07/16/2023
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: Thom03/13/2024
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.
by: Man Bear Pig05/31/2023
This is on a 2004 Dodge 2500 with a 2500 lbs truck camper, Dirt bike on a hitch rack, and 2 mountain bikes on a front rack. The sway bar definitely helps. This one fit well around my stupid 5" exhaust that was installed by the previous owner. The Hellwig would not clear it. I have the Timbren SES and wedges in my leaf springs as well. The sway bar is a nice addition to those items. What I really notice is that when making emergency maneuvers or going off road, the truck corrects quicker than before and feels safer and less likely to tip over. I would not say the bar by itself will solve all of your issues, but couples with other remedies, it will help make your top heavy overloaded ride feel safer. With all my additions, I can confidently go the speed limit and often times well above through the Colorado mountains with no issues.
by: George07/13/2023
On my 2021 Mercedes Benz class C Tiffin Wayfarer this rear anti-sway bar fit perfect. I didn’t have to make any modifications to the exhaust. With help I had it installed in 2 hours and 50 minutes. The pictures on the instructions could have been clearer to understand.
by: Lawrence 04/27/2023
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: Robert 05/02/2024
The antisway bar was a great investment. Between Etrailer'S videos and the packaged instructions, the installation was straight forward. Great product.
by: Steve 04/26/2024
I installed a front and rear sway bar and they solved the problem. Before that I had a serious problem with cross winds and semis passing. No more white knuckles!
by: Jeff05/10/2024
Front Sway bar by Roadmaster: Great. BUT the provided new bushing that fits in the factory bracket is too thick and needs to be trimmed to fit right. BOTH of these issues SHOULD NOT have to be tolerated by a buyer of what is supposed to be an expensive quality product!!! The staff is superb but they asked me for a PRODUCT review and both brands are not impressive on the hardware.
by: John 11/22/2022
Significant difference when making turns and going around curves. These twin I beam suspension have a tendency to follow uneven road surfaces, this pretty much eliminated a lot of that. Installed it myself with the Roadmaster end links and the only complaint I have is I had to enlarge bolt hole for the end link bolt, other than that, well satisfied. I also installed the rear sway bar at same time, highly recommend replacing the front and rear sway bars together.
by: Brian 02/25/2024
As most p30 owners, handling has been an issue. I have had my 1990 motorhome for 24 years and have white knuckled it for most of the time. I have added a trac bar, new rear springs, air bags on the rear. All have had some improvement. I was hesitant about the cost/effectiveness of a new front sway bar. I am here to say that the larger sway bar made a big improvement in handling. I was very concerned about the cost. But glad I pulled the trigger. It handles quite flat and has had some improvement with sway.
by: Greg07/19/2018
I purchased a Roadmaster antisway bar to replace the stock bar on my 2012 Pleasureway Excel Motorhome which is on a Ford E350 chassis. I did the install myself and instructions were very clear and was not too difficult to do. Handling is much improved, I have noticed less body roll when turning or going over bumps. I have included photos to show the difference between the stock bar diameter and the beefier Roadmaster bar.
etrailer shipped promptly and customer service was great.
by: Ron 04/05/2024
It is beyond my comprehension why camper and motor coach manufacturers build their products so subpar concerning how they handle on the road. I’m thankful that ETrailer for their expertise and products to get my Class C coach road ready, safer and more comfortable to drive.
by: Dal03/23/2024
Very smart investment. In combination with the upgraded rear anti-sway bar the amount of steering inputs was greatly reduced. Definitely extended the miles I now drive per day.
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See what our Experts say about this Roadmaster Anti-Sway Bars
- Rear Anti-Sway Bar Option for a 2006 Pleasure-Way Class B RV on a Chevrolet Express 3500 ChassisAccording to my contact at Roadmaster, the Roadmaster Rear Anti-Sway Bar, # RM-1109-150, will fit a Class B motor home built on a Chevrolet Express 3500 Chassis such as your 2006 Pleasure-Way Lexor, but the size and the location of the generator will need to be examined. The sway bar attaches to the rear axle and to the outboard side of the frame rails just behind the rear axle. My contact informed that as long as you have about 5 inches of available space behind the rear axle and there...
view full answer... - Rear Sway Bar Recommendation for a 2014 Forest River Sunseeker on a Class C Chevy 4500 ChassisYes, for your 2014 Forest River Sunseeker built on a 4500 Class C Chevy Chassis you would want the rear sway bar part # RM-1109-175. This is a 1-1/2 inch thick sway bar confirmed to fit your vehicle. The part # RM-1109-150 will also fit your RV but since it's a slightly thinner bar it wouldn't offer as much stability. The trade off between thinner vs. thicker is that thicker is more stable but may cause a slightly harsher ride if the vehicle is on the lighter side. For the size of your...
view full answer... - Recommendations to Improve Ride Quality on 2003 Chevrolet Express Van 2500As long as everything is in good working order with your 2003 Express Van 2500, a rear anti-sway bar will help to reduce the ride issues you are experiencing. I recommend the Roadmaster Rear Anti-Sway Bar # RM-1109-150. This is confirmed to fit your vehicle and will minimize sway and improve the stability and driveability of your Express Van. This will attach to the rear axle and chassis and will use the weight of the axle to brace the frame as it shifts in turns. For your 2003 Express...
view full answer... - Support to Help With Sway Control On a 2004 Gulf Stream 6280 on a Chevrolet ChassisThere will always be sway involved with crosswinds and passing semis while driving a motorhome, the way they are built just catches a lot of wind. The best you can do is try and minimize the effects. Air bags are not a great option for sway control, they are going to be better designed for load support. It looks like you have the Chevrolet chassis. Which from what I could find is an option on the 2004 Gulf Stream 6280, the standard chassis is a Ford. Because of this option, I have not...
view full answer... - Anti-Sway Bar for a 2002 Chevy 3500 Cutaway RVThere are several items to reduce sway, see link, that will fit your 2002 Chevy Cutaway 3500. If the existing bar has a 1-1/2 inch diameter then you can use # RM-1109-175 that you have referenced. If the chassis was built before June 2007, you will also need bracket kit # RM-590061-00. If the existing bar has a 1-3/8 inch diameter then you would use # RM-1109-150 and the same bracket kit listed above # RM-590061-00 for chassis built before June 2007.
view full answer... - Rear Anti-Sway Bar for Class C RV Built on a 2001 Chevy 3500 Express Van ChassisIt is most likely a Class C. For a rear anti-sway bar you would use # RM-1109-150. Since it is a 2001 Chevy 3500 chassis you will need an additional axle mounting bracket, # RM-590061-00, to complete the installation. I have included a link to the sway bar instructions for you. If it is rated as a Class B there are no confirmed fits listed.
view full answer... - Rear Swaybar for 2002 Pleasureway Class B Lexor TD Motorhome on Dodge Ram 3500 Van ChassisYes, you would want the Roadmaster Anti-Sway bar part # RM-1129-111. This has been confirmed to fit your 2002 Class B RV Dodge Van 3500. At this time Roadmaster does not offer a front sway bar solution. I would first try the rear sway bar and see if that helps enough and go from there.
view full answer...
- Rear Anti-Sway Bar That Fits 2013 Chevy Express 3500 Passenger VanI was able to confirm with Roadmaster that the rear anti-sway bar that fits your 2013 Chevy Express 3500 passenger van is the Roadmaster Rear Anti-Sway Bar # RM-1109-150. According to Roadmaster there will be no interference with the exhaust of other components when using this anti-sway bar. I have added a link to the directions as well as a video review for you to check out of the Roadmaster Rear Anti-Sway Bar # RM-1109-150.
view full answer...
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Info for this part was:
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Richard
10/29/2023
Still working great after lots of use, no squeaks or rattles. Highly recommended!