Roadmaster Rear Anti-Sway Bar

Roadmaster Rear Anti-Sway Bar

Item # RM-1139-147

lowest price pledge

Retail:$919.70

Our Price: $384.95

You Save: $534.75
Anti-Sway Bars

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

This item qualifies for Free Shipping

Shipping Weight: 47 lbs

Quantity: 
In Stock, Ships Today
Anti-Sway Bars RM-1139-147 - 1-1/2 Inch Diameter - Roadmaster
zoom in icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
Please enter a valid email address.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

pop out icon replay 360 icon
horizontal rotate icon

Product Images

In Use/Installed

Customer Photos


  • Roadmaster
  • Anti-Sway Bar
  • 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. Call 800-298-8924 to order Roadmaster anti-sway bars part number RM-1139-147 or order online at etrailer.com. Free expert support on all Roadmaster products. Guaranteed Lowest Price and Fastest Shipping for Roadmaster Rear Anti-Sway Bar. Anti-Sway Bars reviews from real customers.


  • All Info
  • Reviews (380)
  • Q & A (69)
  • Videos (14)
  • Photos
  • Why etrailer?

Roadmaster Anti-Sway Bars - RM-1139-147

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 1-year 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.



1139-147 Road Master Anti-Sway Bar - Rear



RM-1139-147 Installation InstructionsInstallation Details RM-1139-147 Installation instructions

This Product Fits The Following Vehicles

2007 - 2013 Winnebago Access Motorhome E-450 with V10 engine

2014 - 2014 Winnebago Access Premier Motorhome E-450 with V10 engine

2018 - 2018 Holiday Rambler Altera Motorhome E-450 with V10 engine

2011 - 2013 Holiday Rambler Aluma Lite Motorhome E-450 with V10 engine

2005 - 2017 Winnebago Aspect Motorhome E-450 with V10 engine

2008 - 2009 Holiday Rambler Atlantis Motorhome E-450 with V10 engine

2016 - 2016 Holiday Rambler Augusta LX Motorhome E-450 with V10 engine

2008 - 2016 Holiday Rambler Augusta Motorhome E-450 with V10 engine

2016 - 2019 Thor Axis Motorhome E-450 with V10 engine

2000 - 2009 Bigfoot Bigfoot Motorhome E-450 with V10 engine

2016 - 2017 Gulf Stream BT Cruiser Motorhome E-450 with V10 engine

2008 - 2016 Itasca Cambria Motorhome E-450 with V10 engine

2016 - 2017 Winnebago Cambria Motorhome E-450 with V10 engine

2000 - 2003 Coachmen Catalina Sport Motorhome E-450 with V10 engine

2001 - 2012 Winnebago Chalet Motorhome E-450 with V10 engine

2008 - 2010 Four Winds Chateau Citation Motorhome E-450 with V10 engine

2008 - 2010 Four Winds Chateau Motorhome E-450 with V10 engine

2011 - 2019 Thor Chateau Motorhome E-450 with V10 engine

2013 - 2016 Thor Citation Motorhome E-450 with V10 engine

2004 - 2019 Coachmen Concord Motorhome E-450 with V10 engine

2008 - 2009 Gulf Stream Conquest BT Cruiser GX2 Motorhome E-450 with V10 engine

2002 - 2011 Gulf Stream Conquest BT Cruiser Motorhome E-450 with V10 engine

2004 - 2008 Gulf Stream Conquest Independence Motorhome E-450 with V10 engine

2008 - 2018 Gulf Stream Conquest Motorhome E-450 with V10 engine

2000 - 2011 Gulf Stream Conquest Sport Motorhome E-450 with V10 engine

2003 - 2009 Gulf Stream Conquest Ultra Motorhome E-450 with V10 engine

2008 - 2008 Gulf Stream Conquest Vista Cruiser Mini Motorhome E-450 with V10 engine

2004 - 2011 Gulf Stream Conquest Yellowstone Cruiser Motorhome E-450 with V10 engine

2008 - 2009 Gulf Stream Conquest Yellowstone GX2 Motorhome E-450 with V10 engine

2004 - 2011 Gulf Stream Conquest Yellowstone Motorhome E-450 with V10 engine

See All Vehicle Fits



Video of Roadmaster Rear Anti-Sway Bar


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




Video Transcript for Roadmaster Rear Anti-Sway Bar Review

Speaker 1: Today we're gonna be taking a look at Roadmaster's Line of Rear Anti-Sway Bars for motorhomes. You want to refer to our fit guide to find the appropriate sway bar for your vehicle.The large size and heavy weight associated with motorhomes can cause drastic amounts of sway when driving down the road. To help create a safer ride, and reduce driver fatigue, we can minimize the sway by adding an additional rear sway bar. So when making basic maneuvers or sharp turns, you'll minimize the risk of a rollover.Also, when driving on windy days, on uneven pavement, you can get a sway affect going back and forth, and you'll have to compensate for that with the steering wheel to maintain and safe, straight path.This additional bar will help reduce that amount of sway, making it easier to maintain control of your vehicle and reduce vehicle fatigue, 'cause you're not having to compensate as much.The Polyurethane Bushings will help dampen road vibrations, and additionally stand up to corrosive road oils, salts, and UV rays. The bar is made up of 4140 chrome steel, where most factory bars are only made of a lower strength, 1020 steel.And to maximize your reduction of sway, Roadmaster recommends you also get a front anti-sway bar. Using our fit guide at etrailer.com you can pick out the appropriate rear and front end anti-sway bars for your motorhome.Now we'll take our anti-sway bars out on our test course.

When we go into our alternating bumps, you can instantly feel a difference in the amount of sway. It's a lot more stable side to side then it was before, making it much easier to maintain control of the steering wheel.And then we'll head onto our straight bumps. When we hit those, there's a definite difference in how much forward and back movement than we had before. It's definitely a more comfortable ride than what we had. And again, it's easier to maintain control of the steering wheel.And now we'll head onto our slalom where we can really test our the sway capabilities.

So if we have some evasive maneuvers, how our motorhome would react. And it's a massive difference. When turning, there's hardly any sway. I feel much more confidence taking sharp, evasive turns.Our customer David S purchased both front and rear Roadmaster anti-sway bars, and had this to say."I installed front and rear sway bars on my 2006 Itasca Suncruiser after making a winter trip to Florida from Ohio. We made a return trip this past winter, through the smoky mountains etcetera.

The improvement in handling was so noticeable, my wife noticed it from the passenger seat. I highly recommend both of these products. I have a workhorse w24 chassis. Crosswinds and semi-push was very minimal. One handed driving in most situations in the norm now, and driver fatigue was minimal.

Driving the coach is much more enjoyable."And that completes our look at Roadmaster's line of rear anti-sway bars for motorhomes.


Customer Reviews

Roadmaster Rear Anti-Sway Bar - RM-1139-147

Average Customer Rating:  4.8 out of 5 stars   (380 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.

- RM-1139-147
by:
1997 Ford F-450 Cab and Chassis

Because I have an older rig- (97 Fleetwood Jamboree, 31 ft, class C) I wasn't able to find many reviews of the Roadmaster's improvements of this particular generation coach. Install was fairly straightforward, and on my initial short test drive I was very impressed. The rear of the whole rig was tight with way less body rolling, and handling on the highway has improved as well. After my short test drive, it was apparent that I will need to install the front anti- sway bar at some point as well. The rear is tight now, but the front still floats. I considered some other spring upgrades, but I'm happy I choose to start with the Roadmaster anti-sway bar. If the cost was lower, I would order and install the front now. 677752



- RM-1139-147
by:
2018 Ford E-Series Cutaway

Great service team. I talked to Julie and Sherry and they both were very helpful. The quality of the products is top notch. I've shopped around and no one else has support or the selection like etrailer. 493080



- RM-1139-147
by:

Just installed and did small road test and all seemed to be much better but still want to get the motorhome on the open road for the real test. Great service from e-trailer ( McCoy ) 658006



- RM-1139-147
by:
Roadmaster

Product arrived quickly as usual with etrailer. The etrailer video was more handy than the accompanying instructions from Roadmaster. etrailer provided videos for both the early E450 and the later chassis installations. While essentially the same, there was a small difference of enlarging an existing hole on the early frame in my case a 2006 and having to measure to locate the hole on the later. It would be nice if Roadmaster included a parts diagram to help with assembly instead of small not clear pictures. I thought the parts package was short two half inch washers, I supplied them from my stock. The fittings on the Roadmaster bar are much heavier than the stock components. Installation is on a 2007 Coach House, motorhome. Took it for a test drive, big difference in handling. 460014



- RM-1139-147
by:
2016 Ford E-Series Cutaway

I ordered both the Front and Rear anti-sway bar upgrade kits. The install on my 2016 E450 was quite simple, and accomplished easily in my driveway. The kit for the front was a simple remove and replace the OEM bar. The rear kit required drilling two holes to accomodate new mounting points. Other than that, it was also simply a matter of removing a few bolts, and replacing the factory bar. Some minor nits associated with the kits. The washers included in the kit for the rear didn't fit the bolts, also included in the kit. And, the instructions for the front kit didn't include torque specs for the bolts. A quick trip to the local hardware store, and a call to Roadmaster tech support solved the respective problems. Oddly, the Roadmaster tech guy read me THEIR instruction over the phone, and they DID include the necessary specs. I've intalled these kits on two different motor homes now. They work GREAT, and I highly recommend them if you're towing and it feels like the vehicle has a bit more roll than you like. HOWEVER, I would note that the difficulty of installation can vary widely. If you're planning to install yourself, I highly recommend downloading the instructions in advance, and crawling under your vehicle to check on accessibility. For the E450 kit, you'll have to be able to get under there with a drill, and not drill through any cables/lines that may run along the frame rails. You'll also have to be able to get a (typically somewhat large) torque wrench up in there. My experience suggests this can be nearly impossible on some vehicles without access to a grease pit or lift. Good luck! 302774



- RM-1139-147
by:
2017 Ford E-Series Cutaway

Put the Roadmaster Front Anti-Sway Bar (RM-1139-176) and Rear Anti-Sway Bar (RM-1139-147) on my 2018 Class C motorhome and noticed 1000% improvement in the driving and handling. Drove it from Texas to California and back. It handled like a sports car compared to before. My Son and I did the work ourselves. The instructions that came with the parts were helpful and easy to follow. I suggest watching the installation videos before starting the install. 599483



- RM-1139-147
by:

2017 E-450 Class C RV. I just received the road master front anti-sway bar: RM-1139-176, rear anti-sway bar:RM-1139-147and steering stabilizer: RM-RBK24-RSSC . I unboxed everything and Wow! what a difference compared to the other items. My son and I decided to go ahead and install the steering stabilizer- RM-RBK24-RSSC and it took us right at an hour. we would stop and watch the e-trailer video to make sure we were doing a proper assembly. It is a very helpful tutorial. The only concern I have is how close the tie-rod end of the steering stabilizer is to the radiator hose. It looks like it could come in contact. What we are going to try is to get a old radiator hose and cut a section out of it and wrap around the area where the contact could occur. I will post an update when we get the sway bars installed 350488



- RM-1139-147
by:
Fleetwood

Very nice quality product and installation was pretty straight forward with the right tools, just take your time and do things step by step. This sway bar was installed on a 2004 Fleetwood Jamboree on E450 Chasis. Rides great now with less sway and more control! 466581



- RM-1139-147
by:

service has been excellent .... I'll let you know about products once there installed on Monday. We have a long trip planed soon to test them out 450819



- RM-1139-147
by:
Dodge Journey

Two reviews - 1 for the product. 1 for etrailer. Product: Prior to purchasing this rear sway bar, the corresponding front sway bar, and the reflex steering stabilizer, driving our Thor FE30 was frequently a white knuckle experience. Our journey has frequently taken us on I-40 and I-10. Both roads are subject to high cross winds. Additionally, there is heavy semi-truck traffic on these Interstates. Our RV was difficult to control in both of these situations. Frequently we were pushed outside of our lane. The installation was super easy on all of the components thanks to the etrailer videos. I was concerned about my drill being able to fit into the tight space to drill the holes necessary for the rear sway bar. I bought stubby drill bits and that worked perfectly. I did not even need to lift the RV off the ground for any of the components. So far I have taken the RV on I35 twice. It was quite windy both times. It was like driving a completely different RV. No wandering out of the lane. The steering felt much more in control. etrailer: This is the second purchase that I have made from etrailer. Both experiences have been fantastic. Both times I contacted eTrailer to make sure that I was getting the correct parts and all of the necessary components. Christina J helped me with the suspension and did a great job. The product reviews and installation videos are fantastic. I will continue to be an etrailer customer/fan. 475336



- RM-1139-147
by:
2017 Ford E-Series Cutaway

Road master RM-1139-176 and road master RM-1139-147 front and rear sway bars for 2017 Ford econoline 450 - on 26xd Jayco Redhawk. Bought this Class C motorhome brand new. When I test drove it I knew I would have to replace the factory bars. They were way undersized. It was actually dangerous to drive and when we hooked up our flat tow it was really bad. When I installed the road master sway bars front and back it was really unbelievable at the difference it made. It actually made driving this class c enjoyable. Very stable. The bad sway is gone. Pulling my tow is now safe to do. These bars are expensive but I felt if it would help my swaying problem it would be worth it. My dealings with etrailer has been very positive and the videos they produce for installation is spot on. I highly recommend these sway bars. Also it took me working alone in my driveway about 3 hours to install the front and back bars. 464338



- RM-1139-147
by:

Upgrade almost complete on my E450 Quantum LF31. Not hard to install the items. Only have the rear sway bar next month and upgrade will be complete. I also have air bags on the back which helped with the weigh transfer on the unit. 486354



- RM-1139-147
by:

Ordered a steering stabilizer and rear sway bar to improve handling on my Ford E450 Class C. I’ll update the review once the parts are installed. Customer Service at etrailer is top notch. I was notified of a delay in shipment from the factory and they expedited it once received. This company has employees who do a great job and take care of their customers. The prices are competitive and their selection is large. Definitely recommend etrailer. 680716



- RM-1139-147
by:
Roadmaster

Excellent product. Installed on my 2015 Itasca Cambria 30J E450. It was not to difficult if you have some mechanical skills and tools. I installed Roadmaster swaybars on the front and rear. Made a big difference. 646756



- RM-1139-147
by:
2019 Thor Four Winds Motorhome

Makes a big difference in my e-450 based motor home 619202



- RM-1139-147
by:

This product, along with front anti sway bars, dramatically improved the handling of my motor home in windy conditions. Very pleased. 617359



- RM-1139-147
by:

Easy install and great service by etrailer. Already can tell the difference. 553328



- RM-1139-147
by:

Better than expected, couldn't be happier! Money well spent! 525667



- RM-1139-147
by:
2015 Ford Van

Better than expected, couldn't be happier! Money well spent! 525554



- RM-1139-147
by:
2007 Ford Van

Definitely will recommend to others. Could tell a big difference on the way home from the shop. 493771



- RM-1139-147
by:
2012 Ford Van

Easy install and great improvement on my Freedom Elite 28Z 491025



- RM-1139-147
by:

I received my parts today very promptly. I also received a call that my first order was back ordered. That was great because I didn’t plan on installing till next month when weather breaks.i have very well with this company. 485036



- RM-1139-147
by:

Just finished the installation and it went well. The instructions and the video was a great help. Now I can't wait to take it out. Thank you for the great customer service. 471662



- RM-1139-147
by:
2015 Ford E-Series Cutaway

Made my 2015 Class C RV on Ford E450 Chassis much more stable. 397550



- RM-1139-147
by:

These new sway bars are huge compared to the original. They get installed next week. 381886


Comments

The products helped but we still couldnt get rid of the steering issues.We sold that rv.

Chrisda47 - 05/17/2018

38609

- RM-1139-147
by:

Tonya was excellent. She knew her product and wanted to make sure that I got the item that I wanted. I am very pleased with both the service and shipping. A+ all the way. 296782



- RM-1139-147
by:

Everything works as advertised. E-Trailer delivered this in a few days. 210422



- RM-1139-149
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


Added both the front and rear anti-sway bars to our 2016 Newmar Bay Star on a Ford F-53 chassis and it made a huge improvement. Have purchased additional products and etrailer ships fast, quality is always first-class and prices very competitive. 696673



- RM-1139-149
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


Drives and handles 200% better. Manufacturers should be required to install these at the factory. 672850



- RM-1139-149
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


Tammy P. made sure I received the sway bar when I needed it. Great service. 683359



- RM-1139-149
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


The product is great. The change in handling of my Ford F53 based motorhome is like day and night. The sway ( those of you who have an F 53 know what I’m talking about ) is so much more tolerable and no more white knuckles. The installation was straightforward but wasn’t as easy as it looked in the instructions. The torques were killer and took three of us to get done. The product does what Roadmaster clams it will do and I’m happy with the anti sway bar. 664236



- RM-1139-149
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


Really improved handling in curves. No longer tips or leans over even if I drive in too hard. It's a challenge to do yourself due to the necessary torqueing but it can be done. I'm now wanting to get the front sway bar replacement. 666785



- RM-1139-149
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


This is the first of three pieces I wanted to install on my Rig. (budget permitting) The advice to start with this rear sway bar first was spot on. Since this augments the existing sway bar and doesn't replace it, It really does makes a difference. I chose to have it installed by my local RV Shop, since they had all the equipment and tools to do it right. I paid them $225.00 for the install. The tech reviewed the installation video and was pleased I had all the torque data. I might tackle the front anti-sway bar and the Reflex Steering Stabilizer by myself, but this was more than I cared to tackle on my own. Those existing U-bolts are a beast to deal with for this do it yourselfer and I was glad to let him handle it. 669629



- RM-1139-149
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


Really easy to put on made a big improvement in the sway in wind is was very hard to drive before great quality well worth it. 635504



- RM-1139-149
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


The Road Master rear sway bar is Great but only because of etrailer with their installation video. The written instructions that come from Road Master are less than vague and incomplete. The only thing of value in the instructions is the torque specifications. Without etrailer‘s video the average mechanically inclined person would not know how to properly install the system 453321



- RM-1129-124
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


Very happy with the sway bar. Make sure you have the frame brackets tight to the frame. 351918


Comments

Still works well, does have clunk when you hit a bump. Talked with roadmaster and we could not identify cause. Make sure brackets are tight to frame, they will move.

Larry M - 03/12/2018

35770

- RM-1139-149
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


Haven't installed product yet. Hopefully next week. 578298



- RM-1139-146
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


I have a class A motor home on an F53. They are scary to drive. Called Noah at etrailer.com. He knew just what I needed. Front sway bad, rear sway bar and steering stabilizer. Had them installed today and took about 100 mile drive. Wow, what a difference. Delivery was really fast and no one could beat them on price. I would use roadmaster products again. Thanks Noah for all your help!! 598297



- RM-1209-131
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


This thing changed the handling of my RV significantly. It was like going from a horse and buggy to a sports car! It truly made a huge difference in the wind, rough roads, crossing parking lot aprons and cornering. It's worth the money to make the upgrade and Etrailer did an excellent job on the install! 638776



- RM-1139-140
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


I purchased this kit and the Roadmaster rear anti-sway bar kit for installation on my 2015 Fleetwood Flair, 26-foot. Before purchasing, I called Roadmaster to make sure this kit could be installed on my small RV, as they make smaller kits for smaller RVs. They indicated it could be installed, and I'm glad I went with the heavier kit. The install took maybe an hour, with the only glitch being some difficulty getting the poly bushings and brackets over the new bar. I called Roadmaster, and the tech noted that the brackets DID look to small, but with some jiggling and finesse, the bolts should fit, and they did. My only irritation with this, and the rear anti-sway bar kit, is that the Roadmaster instructions do not provide ANY torque specifications for bolts to be replaced, either Ford F53, or kit specific, so be prepared to make some calls or go on an Internet search to find the right torque specs. 224319



- RM-1139-149
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


After purchasing a 2017 Winnebago Sunova 36 Z, I realized there were several handling issues that needed to be dealt with to make the drive more comfortable. I researched and then asked the experts at etrailer to narrow down part numbers appropriate to my F53 chassis. With their guidance, I purchased "sumo- springs" front and rear, a "Roadmaster" steering stabilizer, and finally the "Roadmaster" rear sway bar. The addition of these parts has made the coach far more comfortable to drive. Not only does e trailer provide great assistance ordering coach-specific parts, but they provide awesome installation videos that are a great help. Thanks etrailer!! 522622



- RM-1139-149
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


Received product in a timely manner, package a little damaged but all parts were there, installed myself. Video was helpful except where it says refer to instructions for torque limits. Written Instructions and chart below do not agree. 568016



- RM-1129-124
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


I recently purchased and installed a rear sway bar for my 2006 Dodge Ram 2500 4x4 diesel truck.. I searched through several models of bars but wanted one that was similar to the factory bar I had on my 2000 Dodge 2500 4x4. This Roadmaster bar is of excellent quality and bolts to the bottom brackets of the rear differential so the installation is very solid on the axle. The vertical links mount to 2 very sturdy brackets that attach to the frame rails. All the hardware is marked on the heads as graded hardware. The bars, links, urethane bushings and all hardware are excellent quality. This installation made an immediate improvement in my trucks roll stiffness. The factory does not make a rear roll bar for these year trucks for some reason. My previous Dodge had the camper package and came with a nice rear sway bar. This etrailer Roadmaster setup is a good option for anyone looking for something like a factory bar. The folks at etrailer were very knowledgable about their product and very helpful making sure I got the unit I needed. I will definitely recommend them and their products as well as use them in the future for my truck needs. 483372



- RM-1139-176
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


Easy install and great improvement on my 2012 Freedom Elite 28Z 491024



- RM-1139-176
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


Let start with Mark S. Sale Rep Good Job Very Helpful Courteous and very informed. Very prompt on returning my calls. Thanks Mark S. you define what is the Excellent in Customer Service Wow same Day Shipping every time that evening your order will be at UPS heading your way. Got the Sway bar installed Instruction clear and precise. Made a huge differences in way motor home handle . I have not installed the back sway bar motor home. This upgrade very well worth the money. Dont think no more about this upgrade; just order and install . you wont regret it. 508616



- RM-1139-140
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


Have not installed this yet but etrailer service is excellent! I have probably placed 6 orders in the last couple of years and they have always exceeded my expectations. Send 'em you business! Great product selection, competitive prices, quick delivery and good tech backup. 469201



- RM-1209-131
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


I just received the sway bar today and was delivered very expeditiously. I do want to thank the etrailer staff for providing great service. I want to especially thank Conner L for working with me patiently to expertly advise me what I need to correct a sway issue I'm have with my RV coach. Conner is very well versed in RV technical knowledge and was a great help in suggesting options. My entire experience was very fluid through out the whole process. The assembly arrived quicker than anticipated and the shipping web site kept me informed as to where the shipment was each day. I'm looking forward to the benefits of my sway bar assemble as soon as it is installed. I am also looking forward to my next etrailer purchase. Thank you again. 545192


Comments

Outstanding

Tony K - 07/23/2019

58102

- RM-1139-140
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


This product did what it advertised it would do. For my motorhome it made the front end suspestabilizer that came with it.nsion work a lot better than the 428410



- RM-1209-131
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


Installed on MB Sprinter 3500 RV. Corrected sway and yaw when being passed by big rigs. Install directions were confusing. Called Roadmaster, they sent better instructions and talked with installer and solved the issue. 643712



- RM-1139-149
by:

Review from a similar Roadmaster Sway Bar with Bushing Kit in Anti-Sway Bars


Installed the new sway bars and the sumo springs and the handling is vastly better than it was before-- well worth the investment-- thanks 605053


50
414
Show More Reviews

Ask the Experts about this Roadmaster Anti-Sway Bars

Do you have a question about this Anti-Sway Bar?


  • Recommended Anti-Sway Bars for E-450 Chassis on 2018 Thor Vegas
  • For your 2018 Thor Vegas 25.2 on Ford E-450 chassis, the Roadmaster Rear Anti-Sway Bar for Motor Homes # RM-1139-147 and the # RM-1139-176 for the Front Anti-Sway Bar. These are the confirmed fits for the E-450 chassis with either a V8 or V10 engine and will help to stabilize your vehicle and offer you a more comfortable ride. You may also be interested in the Roadmaster Reflex Steering Stabilizer with Mounting Brackets for Class C Motor Homes # RM-RBK24-RSSC. This will help you stay...
    view full answer...

  • Comparing Roadmaster and Hellwig Sway Bars for Motorhome Built on E-450 Chassis
  • Roadmasters priority when it comes to their sway bars is top notch quality and the easiest install for the customer. This typically cuts the install time down enough that you end up saving money if you pay to have the bars installed or decide to do it yourself. Hellwig bars will work great once installed but they aren't as easy to install and their hardware isn't quite as nice so over the long haul you pay less with the Roadmaster bars. The rear bar you'd need for your 2014 Motorhome...
    view full answer...

  • Recommended Suspension/Handling Enhancements for Motorhome Built on 2018 Ford E-450 Chassis
  • If your 2018 motorhome that is based on the Ford E-450 Series Cutaway is the V10 version then you can use Roadmaster Reflex # RM-RBK24-RSSC steering stabilizer. For a front anti-sway use kit # RM-1139-176 and for a rear anti-sway use kit # RM-1139-147. If you have the E-450 V8 version then you can use steering stabilizer # RM-RBK24-RSSC if the vehicle has an OEM factory damper; or if it does NOT have this feature instead use # RM-RBK2-RSSC. The same Roadmaster anti-sway bars noted above,...
    view full answer...

  • Front and Rear Sway Bar Recommendation for 2017 Ford E-450
  • For a front sway bar for the 2017 Ford E-450 you'll want to use the Roadmaster # RM-1139-176. This part will replace the existing sway bar, but will reuse the factory hardware and end links. A rear sway bar is also available as part # RM-1139-147.
    view full answer...

  • Do Both Sway Bars Need to be Replaced at Same Time on Motorhome Built on 2017 Ford E-450 Chassis
  • You can replace the front sway bar only on your motorhome with a 2017 Ford E-450 chassis, but the best way to enhance the ride of your motorhome is to add an aftermarket rear anti-sway bar, which are superior to OEM sway bars. After that you can further improve the ride by adding a front anti-sway bar and then steering stabilizer. The combination of these three parts will dramatically increase the handling and comfort of your driving experience. I recommend starting out by replacing...
    view full answer...

  • Improving Steering on a 2018 Jayco Redhawk Class C on a Ford E-450 Chassis
  • From my research your 2018 Jayco Redhawk 31XL is a Class C motorhome built on a Ford E-450 chassis with a V10 engine. To improve the steering on your Jayco you'll gain the most improvement from the rear Rear Anti-Sway Bar # RM-1139-147. That would be followed by the Front Anti-Sway # RM-1139-176 and then the Steering Stabilizer # RM-RBK24-RSSC.
    view full answer...

  • Anti-Sway Bars Needed for a 2018 Thor Vegas Motorhome
  • Whether your 2018 Thor Vegas has the V8 or the V10 the front anti-sway bar is part # RM-1139-176 (which replaces your factory swaybar) and the rear anti-sway bar is part # RM-1139-147. Something else that you may consider is a steering stabilizer like part # RM-RBK24-RSSC which will fit if you have an OEM damper. The anti-sway bars are definitely the first solution to a smooth ride but if you find out that you would like more stability the steering stabilizer is a great product. I...
    view full answer...

  • SumoSprings and Rear Sway Bar Recommendation for 2017 Ford E-450 Cutaway
  • For a SumoSpring set that is confirmed as a fit for your 2017 Ford E-450 Cutaway we have the part # SSR-106-40-1 that is a confirmed fit and would work well. For the front axle you then would want the part # SSF-106-47. The best way to fight sway though is with a rear sway bar like the part # RM-1139-147 which is a confirmed fit. I attached an install video for this as well.
    view full answer...

  • Recommended Anti-Sway Bars for 2018 Thor Axis Built on Ford E-450 Chassis
  • The best way to enhance the ride of your 2018 Thor Axis, which was built on a Ford E-450 chassis, is to add a rear anti-sway bar. After that you can further improve the ride by adding a front anti-sway bar and steering stabilizer; the combination of these three parts will dramatically increase the handling and comfort of your Thor Axis, allowing you to enjoy your time on the road instead of exhaustingly attempting to keep your rig centered at all times. The correct fit for your 2018...
    view full answer...

  • Recommended Anti-Sway Bars for Ford F53 Chassis on 2018 Thor Hurrican 29m Motorhome
  • Your 2018 Thor Hurricane 29M is built on a Ford F53 Chassis and has a GVWR of 18,000 lbs. For this motorhome I recommend starting with the Roadmaster Rear Anti-Sway Bar for Motorhomes # RM-1139-146 because the rear sway bar has the most impact on the overall driving of the vehicle. You do not need to use a hoist to install the bar, but you will be removing a shock, so it will be much easier if you have a free moving axle, but it is not an absolute requirement. It is not a difficult installation,...
    view full answer...

  • How to Improve Handling on 2018 Jayco Redhawk 25R Built on Ford E-450 Chassis
  • Hello! We can help you improve the highway handling on your 2018 Jayco Redhawk 25R with a few parts that will give you a more pleasant driving experience with your 2018 Jayco Redhawk 25R that was built on a Ford E-450 chassis and has a V10 engine. I recommend using Roadmaster Reflex Steering Stabilizer # RM-RBK24-RSSC which will help you control your Redhawk when encountering those windy conditions you referenced by working to keep your steering centered. I also recommend using Roadmaster...
    view full answer...

  • How to Improve Ride Quality of RV Built on 2017 Ford E-450 Chassis
  • It's hard for the chassis manufacturers for the RVs to know how the vehicle is going to react when the motorhome is installed on them since they deliver the chassis without anything installed on them. So typically the final product has some ride issues. The Ford E450 and F53 have a reputation for this as well. The biggest ride improvement you'll make is with a bigger rear sway bar like the # RM-1139-147 which is a confirmed fit. A front sway bar makes the next biggest improvement like...
    view full answer...

  • Recommended Parts To improve Ride And Suspension On 2015 Winnebago Aspect 30J
  • We have the items you need to improve the ride and stability of your 2015 Winnebago Motorhome. We do not however, have any suspension enhancement that will increase the weight capacity of your motorhome. If you are having issues with sway due to high winds or large passing trucks I recommend the Roadmaster Front Anti-Sway Bar, part # RM-1139-176. If you have issues with uneven roads or have trouble with rut tracking and feeling like you are fighting with the steering I recommend...
    view full answer...

  • How to Reduce Side to Side Movement on a 2017 Thor Four Winds Motorhome
  • The side to side sway and body roll will be greatly reduced when you add anti-sway bars to your 2017 Thor FourWinds Motorhome. If you've already done this, then Sumo Springs are a great option for more support. If you haven't added sway bars, I recommend starting with the Roadmaster Rear Anti-Sway Bar for Motor Homes # RM-1139-147 and then adding the Roadmaster Front Anti-Sway Bar for Motorhomes # RM-1139-176. These help keep the frame from twisting and moving. I've attached some videos...
    view full answer...

  • Steering Stabilizer and Sway Bars for 2018 Jayco Greyhawk Motorhome
  • According to my research your 2018 Jayco Greyhawk motorhome was built on a Ford E-450 chassis. For this chassis the correct steering stabilizer is the Roadmaster Reflex Steering Stabilizer # RM-RBK24-RSSC. This stabilizer (pictured) will help you keep your motorhome centered though if you are looking for the best way to enhance the handling of your Jayco I recommend starting with a rear anti-sway bar because these are a vast improvement over the OEM sway bars and their placement at...
    view full answer...

  • Sway Bar Recommend for 2014 Itasca Cambria and Flat Tow Parts for 2014 Jeep Cherokee Trailhawk
  • The Jeep Active Drive II is the correct 4WD transfer case to allow your 2014 Jeep Cherokee Trailhawk to be flat towed as it has a neutral setting that is used for flat towing. There are no speed restrictions I was able to find for your vehicle either. Your 2014 Itasca Cambria Class C would have no problem flat towing this vehicle too. For sway bars you'd want the part # RM-1139-147 for the rear bar, and part # RM-1139-176 for the front. This will make a huge difference in the handling...
    view full answer...

  • Improving Ride Quality and Drivability of a 2018 Thor Axis 25.3 Motorhome
  • The problem that you are having is very common. The issue is that the suspension on motorhomes is adequate at best at handling these larger vehicles. But not to worry because there are some things you can do to make the driving experience much easier and safer. Your 2018 Thor Axis 25.3 was built on a Ford E-450 V10 van chassis. You can add a steering stabilizer to that rig using # RM-RBK24-RSSC. A steering stabilizer will help with that lane wondering problem that you mentioned. It will...
    view full answer...

  • 2019 Entegra 29K Class C Motorhome Anti-Sway Bars and Steering Stabilizer
  • Aftermarket sway bars and stabilizers do make a difference in the handling of most motorhomes since they are usually far superior to the OEM-grade components. Class C coaches like your 2019 Entegra Odyssey which is built on a Ford E-450 chassis will drive better with aftermarket products that will tighten up the steering and reduce the sway from passing trucks and wind gusts. For your E-Series cutaway chassis I recommend the Roadmaster Reflex steering stabilizer # RM-RBK24-RSSC, front...
    view full answer...

  • Sway Bar and Steering Stabilizer Recommendation for 2018 Thor 28Z Motorhome Chassis
  • Your 2018 Thor 28Z is built on a 2017 Ford E-450 cutaway chassis. So for a rear sway bar you'd want the # RM-1139-147 which will make the biggest ride improvement, the part # RM-1139-176 for the front bar and then for the steering stabilizer part # RM-RBK24-RSSC and you'd be set.
    view full answer...

  • Sway Bar and Steering Stabilizer Recommendation for 2018 Gulfstream BT Cruiser 5316
  • Sway bars and a steering stabilizer will make a huge difference in overall driveability for your 2018 Gulfstream BT Cruiser model # 5316 built on a 2017 E450 V10 chassis. The biggest improvement will be a rear sway bar. For that you'd want the part # RM-1139-147 which is a confirmed fit and replaces the factory sway bar. This will minimize side to side movement and body roll plus balance weight transfer. I attached an install video as well. Next biggest difference will come from a...
    view full answer...

  • Anti-Sway Bar and Steering Stabilizer for 2014 Forest River Class C Motorhome on Ford E-450 Chassis
  • We classify your Ford E-450-based Forest River Forester Class C motorhome as a Van in our FitGuide. Suspension enhancement products for the 2014 chassis are shown on the linked page. Please note that some products are specific to the V8 or the V10 version while others will fit both. First priority is a rear anti-sway bar. You can use the Roadmaster kit # RM-1139-147 for the V8 or the V10. This replaces the light-duty anti-sway bar from the factory. Some drilling is required as noted...
    view full answer...

  • How To Reduce Wandering Steering On a 2018 Thor Quantum RC25 Motorhome
  • The correct Roadmaster Reflex Steering Stabilizer for a 2018 Thor Quantum RC25 Motorhome is actually part # RM-RBK24-RSSC. This steering stabilizer would help dramatically with reducing the wandering feeling you have during crosswinds. That said, if you are also having issues with side to side rocking when larger truck pass by then you will want to upgrade the rear anti-sway bar as well with the Roadmaster Rear Anti-Sway Bar part # RM-1139-147 if you don't have auto snow tire chains...
    view full answer...

  • Sway Bar Recommendations for 2019 Coachmen Freelander 34 to Stop Sway
  • A swaying motorhome is on the highway is not a fun experience! The best way we to fix that is with a rear sway bar which for your 2019 Ford E-450 Coachmen Freelander 34 the correct fit is the Roadmaster part # RM-1139-147. Rear sway bars make the biggest ride improvement. I attached an install video for this kit for you to check out as well. Next biggest improvement will be with a front sway bar which your motorhome requires the # RM-1139-176 and you'd be set. I attached an install video...
    view full answer...

  • Best Way to Stabilize 2019 Winnebago on Ford E-450 Chassis
  • Wind gusts are definitely something that can be difficult to deal with when driving a rig like yours and we do have solutions that will help ease your drive. The SumoSprings Solo Custom Helper Springs # SSR-130-54 can be helpful in this regard, but are not the best option when it comes to controlling your 2019 Winnebago Outlook 27D. The best way to enhance the ride and reduce the affect of heavy wind gusts of your Winnebago on a Ford E-450 chassis is to begin by adding an aftermarket...
    view full answer...

  • Recommeended Suspensin Enhancement For 2004 Sunseeker 3100 Class C Motorhome
  • Installing new suspension enhancement really depends on what you want to achieve. If you are lookign for help when you are towing then using suspension enhancement like air bags will help. But if you are looking for help when you are driving to control sway and make the steering easier I recommend sway control. The feedback we get from customers is that they like the Timbren enhancement sytems more than the SumoSprings. The Timbrens I recommend for your Sunseeker are part # TFEF350...
    view full answer...

  • Recommended Anti-Sway Bars For 2016 Jayco RedHawk On Ford E-450 Chassis
  • email to customer 4/29
    view full answer...

  • How to Reduce Sway and Gain Control When Driving 2019 Thor Quantum RC25
  • What your friend is experiencing is unfortunately all too common in the RV world, as many motorhomes just don't come equipped from the factory with sufficient suspension components for enjoyable handling on the road. The good news though is that there are many aftermarket products that are vastly superior to what's currently on the Thor Quantum and will absolutely help to make your friend's journeys just as pleasant as the destinations. The 2019 Thor Quantum RC25 is built on the Ford...
    view full answer...

  • Compatibility of Blue Ox TigerTrak Stabilizer on 2017 E-450 Chassis with Air Bags and Rear Sway Bar
  • The Blue Ox TigerTrak Rear-Axle Stabilizer TT2450 is discontinued but would fit your motorhome with air bags and the Roadmaster Rear Sway Bar installed. I've attached a video to assist. This will control excessive axle side play without affecting the vertical movement of your suspension. The track bar mounts between the frame and rear axle to brace the axle and minimize wander on your 2017 Forester Class C Motorhome. The Firestone Ride-Rite Air Helper Springs - Double Convoluted -...
    view full answer...

  • Rear Sway Bar and Axle Stabilizer for 2017 E450 Class C with V10 Engine
  • Both the front sway bars you mentioned are a fit for your 2016 Ford E-450 with a V10 engine, the part # RM-1139-176 and # BXTH7718. Both of them replace your factory sway bar and are 1-3/8 inch in diameter so they would perform the exact same. Since the Blue Ox has been discontinued the Roadmaster is the way to go. For a rear sway bar you'd want the part # RM-1139-147.
    view full answer...

  • Recommended Steering & Anti-Sway Stabilizers for 2016 Ford E-450 V10 Class C Motorhome
  • I checked with my contact at Roadmaster about a steering stabilizer for your 2016 Ford E450 Super Duty Class C motorhome with the V10 engine. He recommended their Reflex Steering Stabilizer with Mounting Brackets # RM-RBK24-RSSC which will install without drilling or welding. The kit includes the stabilizer element, custom mounting brackets, all hardware and installation instructions. It should install in about an hour. The Reflex installs between the steering mechanism and the chassis...
    view full answer...


Do you have a question about this Anti-Sway Bar?




  • Why etrailer.com?

    At etrailer.com we guarantee:

  • Highest quality anti-sway bars for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate anti-sway bar information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Satisfaction Guarantee
    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Expert Research:
Michael L
Expert Research:
Reno H
Expert Research:
Jameson C
Expert Research:
Adam R
Expert Research:
Jeffrey L
Written by:
Lindsey S
Installed by:
Jeff D
Video Edited:
Joshua S
Video Edited:
Jacob T
Video Edited:
Kathleen M
Video Edited:
Dustin K
Video Edited:
Chris R
Video Edited:
Zach D
Test Fit:
Nicholas E
Test Fit:
Randy B
Test Fit:
Brent H
Test Fit:
Robert C
Test Fit:
David F
Test Fit:
Ryan G
Updated by:
Sarah W
Updated by:
Matthew E
Updated by:
Isabelle B

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.


Product Experts Available Now!

Call 800-298-8924