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

Roadmaster Rear Anti-Sway Bar

Item # 1139-144
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Retail:$1,070.60
Our Price: $675.64
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Anti-Sway Bars

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Anti-Sway Bars 1139-144 - Steel w Polyurethane Bushing - Roadmaster
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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. Call 800-298-8924 to order Roadmaster anti-sway bars part number 1139-144 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.
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Roadmaster Anti-Sway Bars - 1139-144

  • Roadmaster
  • Anti-Sway Bar
  • Rear
  • 1-3/4 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: 1-3/4"
  • 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.



1139-144 Road Master Anti-Sway Bar - Rear

Installation Details 1139-144 Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

Roadmaster Rear Anti-Sway Bar - 1139-144

Average Customer Rating:  4.8 out of 5 stars   (576 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.

- 1139-144
by:

I was very pleased with the service that I received. Very prompt shipping and received my order as scheduled. Camping World will be installing it on Tuesday the 27th. 903092



- 1139-144
by:

I have no more sway on our 2005 Fleetwood Southwind Class A after installing this sway bar. However, I must be honest, When I went to install this sway bar, I found that both of the bushings and one of the brackets that attached the factory sway bar to the chassis were completely missing. I replaced the bushings and bracket at the same time that I installed this Roadmaster HD sway bar. I can't honestly tell whish fix or the combination made the difference. 728746



- 1139-144
by:
1999 Ford F-53

I purchased a 2000 Itasca 35U on the Ford Chassis last fall. On the 250 mile drive home on the Coquihalla Hwy in BC Canada ( highway thru hell ) I was white knuckled and afraid this was not ever going to be enjoyable or safe drive. Did I waste my money? No. With a little research I found what I hoped would save my dream of hitting the road in this motor home. I found etrailer on line and they had everything I wanted and at the best price I could find anywhere. I purchased the Roadmaster Front and Rear Anti-Sway bars for this Ford chassis and replaced all four shocks. The " Roadmaster Products" transformed the drive better than I could expect or ask for. It feels safe and solid on the road! I am so thankfull. etrailer earned my business and trust. If you are looking to feel safer and more in control in your motorhome, buy this package! I deserved to enjoy a safe and stress free ride and so do you. In conclusion, etrailer and their Roadmaster products are a must for this motorhome. 587694



- 1139-144
by:
2000 Ford F-53

Great service. Shipped UPS 3 days. Arrived yesterday. Some of the packaging could be better, but overall I'm very happy. Haven't installed yet, I'll post some pictures of them later. Hopefully they will improve the ride/driving in my F53 chassis motorhome as much as Roadmaster claims. 566799



- 1139-144
by:
2014 Honda CR-V

Bought this a year ago. Arrived promptly. Installed with no real problems. I had to get a larger torque wrench to get the bolts tightened to specs. 5000 miles later, I have really enjoyed the improved handling. I also installed the front sway bar. I would highly recommend this to anyone. 390801



- 1139-144
by:

I received but not installed .I will get back with you with pics and review in a few months after I travel some. Order was received and shipping was spot on. great job! 363210


Comments
the product is great and has made driving easier Install was a snap
ROY J - 04/05/2018

36907

- 1139-144
by:
2011 Ford F-53

I installed the 1-3/4" sway bar kit. I have a 38' coach so wanted all the help I could get. Thus far the improvements to the handling have been very very welcomed. It's now a rarity that that I encounter any sway or push from passing trucks and barely noticeable sway from strong crosswinds. Now I don.t have to fight the coach constantly. Driving is much more relaxed. 360941



- 1139-144
by:
2015 Ford F-53

What a complete difference this made on my Class A motorhome. At highway speed, I am no longer pushed aside by the big rigs. The coach tracks straight a whole lot better, and body roll is improved. Installed it myself, with help from a buddy? Highly recommend this sway bar! This is my second purchase from etrailer. Both flawless, with quick shipping. 322342



- 1139-144
by:
2014 Ford F-53

It has significantly helped with sway of the coach. I am looking to install next year front steering control for additional safety. Etrailer is a great source to purchase RV products. 316485



- 1139-144
by:

Easy to install, but of questionable value. Reduction in sway was perceptible, but in the end it resulted in only modest improvement. 248522


Comments
I bought both front and rear anti-sway bars for my 2015 Forest River Georgetown 364. After over 10K miles, I still say the improvement is only modest. It wasnt until adding Sumo Springs that I saw a significant improvement.
Vince - 05/05/2017

23661

- 1139-144
by:
Roadmaster

I bought this kit with the intention of installing myself, but a quick review of the instructions convinced me to take it in to a shop instead. The installation is not particularly difficult, but was facilitated by some tools that I simply didn't have. In particular, you'll need a BIG torque wrench to retorque the U-bolts, and on a lesser difficulty level, you'll need a very compact drill and stubby bit to install the frame brackets. I could not get a straight path to the correct location with my drill. It took the shop less than an hour, and was probably much simpler for them since they could put the vehicle on a lift. Otherwise, no surprises. The install could be completed by a home mechanic, but would require at least one somewhat specialized tool - a torque wrench rated to around 400 ft-lbs. The Roadmaster instructions suggest reusing the old U-bolts if they are long enough. I called a different source for new U-bolts, and the tech there suggested that, whether the old bolts fit or not, I should probably purchase new bolts. Apparently suspension U-bolts are threaded in such a manner that they are not intended to be reused. News to me. 224317



- 1139-144
by:
Roadmaster

Good price , got it fast that = happy customer . The sway control was easy to install drilling the frame takes a good sharp drill bit . The only problem I had was when I install the bar I install it upside down witch make it hit . When I called RoadMaster after a bit they told me to flip the bar over . I told them in the instructions they only say to install bar , no this side up or this side down so I put it with the RoadMaster name up . He said there was a running joke if the label was down it probably was rite . NO JOKE TO ME . 204092



- 1139-144
by:
1999 Ford F-53

I ordered the sway bar on Thursday 8/15/2013 and received it on Thursday 8/22. That was very quick shipping for something as heavy as the kit. Price was the lowest I could find on the net. The list price is $980.00 found some places charge around $100.00 less then list plus shipping. Saved a lot by buying from etrailer.com. What surprised me was that etrailer.com was able to ship it right away, when I talked to Roadmaster they said the kit was out of stock and would be two to three week before it would be shipped, was told the samething by other's I checked with. Good experience shopping at etreailer.com, will be back. 96569


Comments
After over a year the sway bar is still the best investmentupgrade I made to the F53 to eliminate the tailwag of a motorhome with a long overhang. Handles great in side winds and on winding roads. The sway bar is well worth the cost and etrailer has the best price with free shipping.
Chuck B - 02/24/2015

9742

- RM-1139-176
by:

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


I would like thank Crystal at etrailer for expediting my order. She verified i had the right part number, verfied it was in stock, and personally expedited the shipping. 2 days later the part was in hand at the rv park we were staying at and 1 hr later i had the part installed. Thank you again Crystal for all your help and i will be order from you folks again. 334111



- RM-1209-131
by:

Review from a similar 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-1209-131
by:

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


RM-1209-131 delivered a day earlier than promised. Installed on 2018 Winnebago 24V View on 2016 Mercedes 3500 sprinter chassis. Good fit had to modify the exhaust which exits on shotgun side ahead of wheels which was to close to the long links. Drove 20 miles to my indoor storage. Quite a reduction to side to side sway. Handles like a different vehicle (better). Can’t WAITE till our next trip. Tulsa auto spring did the installation. Mikes custom muffler shop did the exhaust modification. Do believe l made the right decision not to tackle the job on my own $250 to install. $120 for exhaust modification. In Tulsa, Ok wouldn’t, go anywhere else to get the job done. 715992


Comments
Driven 7500 miles wind trucks and mountains out west. Went from scary ride to more like my f150. Can’t believe Winnebago doesn’t do this at the factory prior to delivery. It would improve their sales probably so much that the cost would be absorbed.
Gary M - 10/11/2020

102057

- RM-1139-149
by:

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


GOOD PRODUCT 498565



- RM-1139-140
by:

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


Good anti-sway bar. Installation was made difficult by being unable to easily remove the OEM anti-sway bar. Although this item was intended to go on a near-new 2015 motorhome, the original retaining bolts were very difficult to remove. However, installation of the RM 1139-140 was relatively easy and completed in about an hour by one person. If two people did the task, it could be done in half that time. The only disappointment, and it was significant, is that there was no mention of torque values for the mounting bolts. 223089


Comments
After a year of use over about 8,000 miles, I have to say the improvement they made are moderate at best even considering I put them on the front and back.
Vince L - 08/30/2016

20677

- RM-1139-140
by:

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


Great customer service from purchase to delivery. Kept informed all the way by George with fast shipping. Sway bar was quick and easy to install on my 2018 Windsport, about 1 1/2 hours by myself. Considerably heavier than original, helps reduce sway as advertised. Great experience with company would purchase other items in future. 483047


Comments
Sway bars are still working great. Would not have another RV without them.
Thomas - 03/09/2019

50330

- RM-1139-140
by:

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


Combined with rear sway bar drives just as I had hoped 312489



- RM-1139-140
by:

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


I received my order, but all the parts wasn't with it. All I got was the bar and the two bushing and brackets that mounts the bushing to the frame. All this came in one long box. According to the picture there are suppose to be more parts. I thought this is an expensive part for no more than I got with it. $ 600.00 for a bar really!! 211264



- RM-1209-131
by:

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


I put this on my 2015 Winnebago view. I left the stock swaybar and added this one to the front of the rear axle. It was the single biggest improvement that I did to the suspension. I can't believe Winnebago sells the RV without this upgrade. It improves handling in the wind or turning corners tremendously. 258934



- RM-1139-176
by:

Review from a similar 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-1139-146
by:

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


Arrived on time and is now installed. Made all the difference in the world. No more white knuckles. Don't even think twice about this upgrade! Just do it !!! Also installed the Roadmaster RSSA........ 604984



- RM-1209-131
by:

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


I just installed the roadmasteranti sway bar 1209-131 on my 2013 Winnebago via.The vehicle is a 2012. it fit well and road test good. I had to shorten the exhaust about 9 inches because it interfered with drivers side arm other than that its good to go. 108043


Comments
I am thinking about adding the 1209-131 to my 2011 Winnebago Via 25Q. Which model Via do you have? Im hoping I wont have to modify the exhaust on my Via Q. Thanks.
-- comment by: Jim - 02/17/2014

2844
Comments
I put the sway bar on a 2012 25t I did shorten the exhaust about 9 inches I think 2 or 3 inches would have been good. That was easy to do, as new as they are just take exhaust loose at first coupling pass the elbow slide it out and take some off the piece that goes to the inside. Worked well for me. Going from our drive onto the blacktop road in front of our place was all it tuck to decide it was worth the effort. It fit very well. Thanks Mack. PS I am 75 and 240 Made a man door step for drivers door .It works well Love it. Mack
-- comment by: Mack - 02/19/2014

2869

Thanks for following up with us!

-- Patrick B - 2/19/2014

Comments
Mack, Patrick,Thank you!
-- comment by: Jim - 02/20/2014

2878
Comments
Still working very good I am not sure I needed to shorten exhaust but I did not know how much movement would be in the down rod So I did it just in case, working very good Mack
Mack - 11/21/2014

7779
28
631
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  • Best Way to Figh Sway of 2007 Four Winds Hurricane Motorhome
    Your 2007 Four Winds Hurricane is build on a Ford F-53 chassis which is notorious for roll and sway issues. The best thing you can do to help with this is a rear sway bar. The rear sway bars on the F-53 chassis make the biggest difference. For that you'd want the part # 1139-144 which is the correct fit for your motorhome. Next up will be a front sway bar which the correct fit is the part # RM-1139-140. These two together will fix any roll issues you are having.
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  • Steering Stabilizer and Anti-Sway Bar Fit for Motor Home on 2001 Ford F-53 Chassis With V10 Engine
    The correct steering stabilizer for your Class A 2001 Ford F-53 Chassis with a V10 engine is the Roadmaster Reflex Steering Stabilizer # RM-RBK22-RSSA. A steering stabilizer is a good way to enhance the ride of your motor home and improve your driving experience, though I do recommend adding a rear anti-sway bar and front anti-sway bar if you don't already have one because they are a vast improvement over the OEM bars and significantly improve your rig's handling so you can enjoy your...
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  • Rear Sway Bar Recommendation for 2001 Ford F-53 to Reduce Sway
    For what you are experiencing the best solution is a rear sway bar as that is the single most effective ride improving modification you can make to a Ford F-53 chassis. For that you would want the part # 1139-144. This will make a huge difference and would be a much better investment that suspension enhancement.
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  • Anti-Sway Bar and Steering Stabilizer Recommendations-1997 Fleetwood Bounder on Ford F-53 Chassis
    The Roadmaster # RM-1139-143 is a fit for your Fleetwood Bounder on a Ford F53 chassis, however Roadmaster recommends going with the beefier # 139-144 for motorhomes 34 feet long and longer. You will need to check to ensure there is enough factory u-bolt available to accommodate the factory nut, washer and 1/2" plate. If the u-bolts are not long enough, the # RM-590050-00 u-bolt replacement kit is needed. For the replacement front bushings for the factory sway bar, use # RM-4139-127....
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  • Anti-Sway Bars and Steering Stabilizer for a Motorhome Built on a 1997 Ford F-53 Chassis
    If you are having a hard time keep the steering wheel centered while driving the RV then a steering stabilizer is the way to go. If the RV is getting pushed around by wind then an anti-sway bar would be the way to go. If you want the driving experience to be as rock solid as possible then a front and rear anti-sway bar and steering stabilizer is the way to go! For the 1997 Ford F-53 chassis you can add a steering stabilizer but only if it has the V8 motor. It is # RM-RBK4-RSSA. You can...
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Info for this part was:

Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Expert Research:
Jeffrey L
Video by:
Andrew K
Video by:
Joshua S
Video by:
Zach D
Video by:
Jonathan Y
Updated by:
Lindsey S
Updated by:
Sarah W
Updated by:
Isabelle B
Installed by:
Jeff D
Video Edited:
Jacob T
Video Edited:
Dustin K
Video Edited:
Chris R
Test Fit:
Andrew S
Test Fit:
Brent H
Test Fit:
Shane H
Test Fit:
Robert C

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