Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter
(1843 reviews)
Price: $846.24
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Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter
Item # RM-1139-143
Our Price: $846.24
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- Reviews (1843)
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Roadmaster Anti-Sway Bars - RM-1139-143
- Anti-Sway Bar
- Roadmaster
- Rear
- 1-1/2 Inch Diameter
- Steel w Polyurethane Bushing
Minimize sway and driver fatigue by improving the stability and driveability of your vehicle. The bar on this sturdy, effective anti-sway system mounts to the rear axle and to the frame to balance weight transfer and reduce body roll.
Features:
- Minimizes side-to-side movement to improve overall stability of your vehicle
- Lets you execute turns and quick maneuvers with confidence
- Allows for a level ride, even on irregular surfaces
- Reduces driver fatigue - minimizes effort required to keep your vehicle in line
- Diminishes effects of crosswinds, passing motorists and shifting cargo
- Designed to fit your vehicle and work in conjunction with its suspension system
- Attaches to rear axle and to chassis - uses weight of axle to brace frame as it shifts in turns
- Engineered to avoid interference with most popular aftermarket add-ons and accessories
- Made with polyurethane bushings instead of the standard rubber variety for a longer-lasting system
- Polyurethane is durable and resistant to damage caused by oil, gasoline and ozone
- Less wear means less give in the system and better support
- Constructed of thick, black powder-coated 4140 chromoly steel for superior strength
- Includes heavy-gauge mounting hardware, easy-to-follow instructions and bushing lubricant
- Extended-length U-bolts (RM-590050-00) may be required for installation
- Works with front anti-sway bushing kit (sold separately) for absolute stability - available on certain applications only
- Made in the USA
Specs:
- Bar diameter: 1-1/2"
- 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 black powder-coated 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.
1139-143 Road Master Anti-Sway Bar - Rear
Installation Details
This Product Fits The Following Vehicles
- 2000 - 2000 Winnebago Adventurer Motorhome Ford - 18,000 GVWR
- 2000 - 2005 Winnebago Adventurer Motorhome Ford - 20,500 GVWR
- 2002 - 2006 Winnebago Adventurer Motorhome Ford - 22,000 GVWR
- 2006 - 2006 Winnebago Adventurer Motorhome Ford - 24,000 GVWR
- 2006 - 2006 Winnebago Adventurer Motorhome Ford - 26,000 GVWR
- 2005 - 2006 Tiffin Allegro Bay Motorhome Ford - 22,000 GVWR
- 2002 - 2006 Tiffin Allegro Motorhome Ford - 20,500 GVWR
- 2006 - 2006 Tiffin Allegro Motorhome Ford - 22,000 GVWR
- 2001 - 2002 Coachmen Aurora Motorhome Ford - 18,000 GVWR
- 2001 - 2006 Coachmen Aurora Motorhome Ford - 20,500 GVWR
- 2006 - 2006 Coachmen Aurora Motorhome Ford - 22,000 GVWR
- 2000 - 2004 Fleetwood Bounder Motorhome Ford - 18,000 GVWR
- 2000 - 2006 Fleetwood Bounder Motorhome Ford - 20,500 GVWR
- 2002 - 2006 Fleetwood Bounder Motorhome Ford - 22,000 GVWR
- 2002 - 2002 Fleetwood Bounder Motorhome Ford - 24,000 GVWR
- 2001 - 2003 Winnebago Brave Motorhome Ford - 18,000 GVWR
- 2002 - 2004 Winnebago Brave Motorhome Ford - 20,500 GVWR
- 2004 - 2004 Winnebago Brave Motorhome Ford - 22,000 GVWR
- 2004 - 2006 Damon Daybreak Motorhome Ford - 15,700 GVWR
- 2004 - 2006 Damon Daybreak Motorhome Ford - 20,500 GVWR
- 2006 - 2006 Coachmen Epic Premier Motorhome Ford - 22,000 GVWR
- 1999 - 2005 Ford F-350, 450, and 550 Cab and Chassis F-550 - Class A Motorhome with V10
- 1999 - 2005 Ford F-350, 450, and 550 Cab and Chassis F-550 - Class A Motorhome with V8
- 1988 - 1998 Ford F-53 15,700 GVWR
- 1999 - 2005 Ford F-53 Ford - 15,700 GVWR
- 1999 - 2005 Ford F-53 Ford - 16,000 GVWR
- 1999 - 2005 Ford F-53 Ford - 18,000 GVWR
- 1999 - 2005 Ford F-53 Ford - 20,500 GVWR
- 1999 - 2005 Ford F-53 Ford - 22,000 GVWR
- 1999 - 2005 Ford F-53 Ford - 24,000 GVWR See All Vehicle Fits
Customer Satisfaction Score:
94% were satisfied with this product
6% of customers were not satisfied
- Product did not meet expectations
- Manufacturer issue
Customer Reviews
Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter - RM-1139-143
Average Customer Rating: 4.8 out of 5 stars (1843 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: BK hitech10/10/2023
Everything pretty much fit like it should. Seemed to reduce the heavy rocking when You make sudden turns or coming out of a parking lot where the road is at a different level.
by: Lee 01/30/2024
What a serious improvement on my motorhome made it so stable. It’s actually unbelievable how nice it drives now easy to install fit perfect. Just amazes me every time I drive it how nice it is to drive. I don’t feel like I’m gonna roll over anymore.
by: Robert05/26/2023
I love both of the Roadmaster anti-sway bars I had installed right before a trip to Iowa. I purchased bushing kits for front and rear but, I didn't know the front sway bar came with new bushings. So I have an extra front sway bar bushing kit. The biggest difference I noticed right away was the handling on the highway. The people I talked to at etrailer were very helpful and always are when I call. Thanks
by: Arthur08/02/2019
1989 Ford F-53
Wow, This sway bar is big, heavy, beefy and strong. I saw all the great reviews but was still surprised when I got it. Installation was straight forward but I did have to have a mechanic shop jack the RV up and take the huge bolts of the U-bolts because my impact wrench was not strong enough. I've only put a few mines on it since I installed it but I have already noticed a difference.
by: Neil 01/23/2024
2004 Ford F-350, 450, and 550 Cab and Chassis
Have not opened. Looks good in the pict ure.
by: Donald05/31/2016
Monaco
Roadmaster Rear Anti-sway Bar and Roadmaster Reflex Steering stabilizer made a 1000% difference on my driving experience. No more being pushed around by the big rigs or the wind. I recommend these upgrades to any motor home.
2004 Monaco Monarch
Ford V10
by: John P04/20/2020
Fleetwood
purchased a 1995 Fleetwood storm 30ft in 2018 install new tires and a alignment
went on a trip to AK from Mi it was exhausting trying to keep it straight and from swaying when trucks pass us . in 2019 I purchase a RM1139-143 sway bar from E Trailer Installed it and went on our trip back to Ak . This time no swaying when semi passes drove straight not exhausted at the end of the day Very , Very pleased with the difference it made
I Install it my self not real difficult if you have some basic mech. skills
by: David B06/25/2014
Allegro
Installed on a Tiffin Allegro 31SA by Whited Truck and RV Center in Auburn, Maine. The Roadmaster anti-sway bar and associated parts are rugged and of high quality. Installation time was about 3 hours; drilling the frame to secure brackets took the longest time. This anti-sway bar improved handing and reduced sway, especially on rough secondary roads.
by: Wayne J. 05/19/2017
Excellent product. Well made. Great instructions. Easy install with proper tools.
Made an incredible improvement in the handling of our 35 ft MOTORCOACH with F53 chassis.
All necessary hardware was included. Delivery and shipping by etrailer was spot on.
Would definitely recommend to anyone wanting to greatly decrease sway in a coach.
by: Mike07/12/2023
2006 Tiffin Allegro Bay Motorhome
Just got it today but all look good
by: SGMJack C.07/15/2017
Ford
I just received the product, which weighs in at "Over 70 pounds" according to the UPS tape attached, and will be returning it unopened once I receive the Return Authorization slip. Please note that this action had to be taken because of "Operator Headspace"on MY PART !!! I failed to properly read the requirements and limitations in their advertisement. The 1139-143 is for a motorhome with the Ford F-53 for an up to a max of 34 foot motorhomes. Mine is a 37 foot and need the one for 18,000 to 24,000 lb. My mistake and the correct one is on the way thanks to the help from the wonderful service personnel at etrailer.com. Great service for less than smart people like me... Thank you so much etrailer.com!!!
by: David 09/25/2019
1999 Ford F-53
Sway bars and steering dampener are installed and the sway has been reduced and dies out much quicker. I am 80 and was able to install everything myself but it is hard work.
by: Wallace09/06/2020
took a lot of the rock and roll out of the coach
by: DEREK SS11/16/2015
WHAT A POWERFULL ADDITION TO MY OLD TIRED FACTORY SWAY BAR , HOWEVER THE CHASSIE BRACKECTS HAD TO BE MODIFYED, NOT A GOOD FIT.
by: Michael06/19/2018
2015 Ford F-53
Sway bar made a big difference driving in windy conditions. The motorhome is much more stable than before.
by: RUDY S03/14/2014
ALTHOUGH I HAVE NOT INSTALLED IT YET, I AM SURE IT WILL BE
OK, THE WEBSITE WAS WELL WRITTEN AND EASY TO UNDER
STAND, AND THE ANTI SWAY BAR WAS DELIVERED TWO DAYS BEFORE PROMISED. GOOD JOB
by: Robert02/23/2018
product worked as advertised and made my motorhome more easier to drive with hardly any tail wagging love the product
by: Robert02/23/2018
product worked as advertised and made my motorhome more easier to drive with hardly any tail wagging love the product
by: James W06/08/2011
Driving in the wind is a breeze. No more rock and roll. Great product. Very Happy
by: Wayne B07/21/2015
Great delivery. Checked all parts, ready for installation.
by: Steve Martin03/10/2015
2013 Ford F-53
All the products I have ordered arrived promptly and in secure packaging. The pricing was great and with the free shipping I doubt you will find it for less anywhere on the net. I definitely will do business with the guys again. I will be sending photos of completed project when I am finished installing.
Thanks
Steve.
by: Gary A09/28/2016
Very pleased with the improvement in ride and handling after about a year of use. Would certainly buy again!
by: Kathy04/24/2024
by: David gould05/20/2015
great product worked great
by: Bruce 07/03/2022
25
1687
Show More Reviews
See what our Experts say about this Roadmaster Anti-Sway Bars
- Recommendation for Roadmaster Front and Rear Sway Bars for a 2005 Fleetwood Bounder 34F Yes I can! For a front sway bar to fit your 2005 Fleetwood Bounder 34F built on a Workhorse W22 chassis you would want the Roadmaster Front Sway Bar part # RM-1259-105 and for a rear sway bar you would want the part # RM-1259-108. I confirmed these fits with Roadmaster so they will work very well for your vehicle.
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view full answer... - Front and Rear Sway Bar Recommendation for 1997 Thor Hurricane Class A MotorhomeFor your motorhome built on a 1997 Ford F-53 Class A V10 chassis we have Roadmaster a rear swaybar. For the rear you'll want the part # 1139-144. We don't carry front sway bars for your RV.
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view full answer... - Rear Anti-Sway Bar for a 2016 Forest River FR3Blue Ox only has rear anti-sway bars for the E-series van chassis and F-53 chassis used on larger Class A RVs. They do not have an option for models built on the F-550 chassis. But Roadmaster does have options. If the RV has a square tube Dana 120 axle then you can use # RM-1139-161. If it is a different axle then there are no other options.
view full answer... - Recommended Anti-Sway Bar for 2006 Fleetwood Bounder Gas Engine on Ford F53 ChassisI did a little bit of research and it looks like 2006 Fleetwood Bounder with a gas engine was built on a Ford F53 chassis like you mentioned, so the correct rear anti-sway bar for your rig with a GVWR of 20,500-lbs is the Roadmaster # RM-1139-143. It should be noted that the factory u-bolt may not be long enough for the factory nut, washer and 1/2" plate when used with this bar. If that is the case, if you have square top u-bolts will need # RM-590050-00, and if you have round top u-bolts...
view full answer... - Installing Extended U-bolts for Roadmaster Rear Anti-Sway Bar 1139-143 on 2004 F-53 ChassisThe Roadmaster Rear Anti-Sway Bar for Motorhomes # RM-1139-143 can use your factory u-bolts if they are long enough. If they are not, then Roadmaster recommends using the 7/8 inch diameter u-bolts that are longer (most likely the larger diameter due to length needed to ensure strength). I've attached a couple photos from the installation instructions to assist with the size and torque. When torque specs are so large either a large special torque wrench is required or installers are...
view full answer...
- Sway Bar Recommendation for 1997 Ford F-53 Chassis National DolphinThe Ford F-53 chassis is notorious for having some body roll and sway when stock. We have found that the best product to reduce that is a rear sway bar. For your RV you would want the part # RM-1139-143 which is a confirmed fit. This will make the biggest difference.
view full answer... - Rear Suspension Kit for 2015 Fleetwood Excursion 33D on Freightliner Chassis to Improve TrackingFor a motor home built on a Freightliner M2 chassis we have both front and rear anti-sway bars that will fit various versions. The linked page will let you select your vehicle version from the drop-down menu at the top of the page to then see suitable anti-sway products. One of these will be your best bet if you're flat towing your Edge and want to improve handling. If you are not sure which chassis you have you can check with Fleetwood by providing your motorhome's VIN number. If you...
view full answer... - 2005 Fleetwood Flair Sway Bar RecommendationYour 2005 Fleetwood Flair is built on the very popular Ford F-53 chassis. Sway bars do help this chassis tremendously. The rear bar making the biggest improvement. For that you would want the part # RM-1139-143 which is a confirmed fit. Then for the front part # RM-1139-148 which will also make a noticeable improvement.
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view full answer... - Improving the Ride Quality of an RV Built on a 2005 Workhorse W22 ChassisYes! Probably the single best addition you can make to provide better handling in your RV would be to install a rear anti-sway bar. Helper springs treat the symptom but not the cause like an anti-sway bar would. There are 2 rear sway bar options for your 2005 Workhorse W22: # RM-1259-108 and # RM-1259-109 (for applications 33 feet or longer). Additional products for even more stability include axle stabilizers: # RM-TRACW-22 or # TT2304 for the front end. And adding a steering stabilizer,...
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view full answer... - Recommended Anti-Sway Bars For Ford F-53 Chassis On 2003 V10 MotorhomeYour 2003 Holiday Rambler we do have the sway bars you are looking for. You have a Ford F-53 Chassis, so I recommend the Roadmaster Rear Anti-Sway Bar for Motor Homes # RM-1139-143. This will help with body roll and will help with stability and drivability. For a front anti-sway Roadmaster Front Anti-Sway Bar for Motor Homes # RM-1139-148. These anti-sway bars will help keep your coach's weight distributed for best travel. These parts when used together will greatly enhance your...
view full answer... - Sway Bars that Fit 2006 Damon Daybreak 3276 to Improve HandlingSince your 2006 Damon Daybreak 3276 is built on a Ford chassis with a 20,500 lb GVWR the correct rear sway bar is the part # RM-1139-143. This will do a really good job getting rid of the sway and keeping the motorhome on the road without requiring over corrections. To help with the bumps and also improve handling the SumoSprings part # SSF-171-40-2 would be what you'd want for the front and then # SSR-187-54-1 for the rear.
view full answer... - Front and Rear Sway Bar Recommendations for a 2014 Fleetwood Bounder 35kThe correct rear sway bar for your 2014 Fleetwood Bounder 35k would be the Roadmaster Sway Bar part # 1139-144. You will retain the factory sway bar with this kit. For the front sway bar you would want the part # RM-1139-148. This replaces your factory front sway bar. The Roadmaster anti-sway bar is made of cadmium-plated 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...
view full answer... - Correct Rear Anti-Sway Bar for 1991 Class A Motorhome on Ford F53 ChassisI have spoken with one of my contacts at Roadmaster, who confirmed that the Anti-Sway Bar Kit, part # RM-1139-143 that you referenced will indeed fit your Class A motorhome on the 1991 Ford F53 Chassis. This bar will be used ALONG WITH the existing factory bar. If the existing U-Bolts are not long enough to accommodate both the OEM and Roadmaster Anti-Sway bar, extended u-bolts are offered, part # RM-590050-00. To see the products I have recommended as well as installation details, click...
view full answer... - Rear Sway Bar Recommendation for a Workhorse W22 Workhorse Winnebago AdventurerActually for your W22 chassis RV the correct rear sway bar would be the # RM-1259-109 for if you are 33 feet or longer or part # RM-1259-108 for if you are shorter than that. There will be some drilling required for installation. I attached instructions for both products for you to check out as well.
view full answer...
Do you have a question about this Anti-Sway Bar?
Info for this part was:
Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Adam R
Written by:
Lindsey S
Installed by:
Jeff D
Installed by:
David F
Video by:
Kathleen M
Video Edited:
Dustin K
Test Fit:
Randy B
Updated by:
Shelly K
Updated by:
Wilson B
Updated by:
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Updated by:
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Updated by:
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Wallace
9/7/2021
made a big difference in my fleetwood bounder