Roadmaster Front Anti-Sway Bar - 1-3/8" Diameter
(1845 reviews)
Price: $396.86
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Roadmaster Front Anti-Sway Bar - 1-3/8" Diameter
Item # RM-1139-176
Our Price: $396.86
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- Reviews (1845)
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Roadmaster Anti-Sway Bars - RM-1139-176
- Anti-Sway Bar
- Roadmaster
- Front
- 1-3/8 Inch Diameter
- Steel w Polyurethane Bushing
Minimize sway and driver fatigue by improving the stability and driveability of your vehicle. The bar on this sturdy, effective anti-sway system mounts to the front 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 front 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
- Made in the USA
Specs:
- Bar diameter: 1-3/8"
- Limited Lifetime Warranty
Benefits of an Anti-Sway System
The Roadmaster anti-sway bar does for side-to-side movement what a good pair of shocks does for up-and-down motion. You will notice a marked improvement in your vehicle's stability as the bar works to balance weight transfer and reduce body roll. The anti-sway bar acts as a link between your vehicle's frame and its front axle, using the axle as a brace to more effectively balance the shifting weight of your vehicle as you maneuver it. Lubricated bushings allow just enough pivot and rotation to compensate for the pressure placed on one side of your vehicle when it goes into sudden maneuvers, hits crosswinds or encounters shifting weights.
Superior Construction
The Roadmaster anti-sway bar is made of 4140 chromoly, a chromium and molybdenum steel alloy. This type of steel is considerably harder and stronger than the standard 1020 steel that is typically used in anti-sway applications. In addition, the larger diameter of the bar increases its torsional roll stiffness. The result is a bar that is not only stronger than the competition, but also nearly 30 percent better at resisting sway. The polyurethane bushings and grommets used at the attachment points are durable yet flexible, ensuring that the system is neither so rigid nor so malleable that it becomes ineffective.
1139-176 Road Master Anti-Sway Bar - Front
Installation Details
This Product Fits The Following Vehicles
- 2018 - 2018 Holiday Rambler Altera Motorhome E-450 - Class C
- 2016 - 2017 Winnebago Aspect Motorhome E-450 - Class C
- 2016 - 2016 Holiday Rambler Augusta LX Motorhome E-450 - Class C
- 2016 - 2016 Holiday Rambler Augusta Motorhome E-350 - Class C
- 2016 - 2019 Holiday Rambler Augusta Motorhome E-450 - Class C
- 2016 - 2023 Thor Axis Motorhome E-350 - Class A
- 2018 - 2023 Thor Axis Motorhome E-450 - Class A
- 2016 - 2020 Gulf Stream BT Cruiser Motorhome E-350 - Class C
- 2016 - 2022 Gulf Stream BT Cruiser Motorhome E-450 - Class C
- 2016 - 2016 Itasca Cambria Motorhome E-450 - Class C
- 2016 - 2017 Winnebago Cambria Motorhome E-450 - Class C
- 2016 - 2023 Thor Chateau Motorhome E-350 - Class C
- 2016 - 2023 Thor Chateau Motorhome E-450 - Class C
- 2016 - 2016 Thor Citation Motorhome E-450 - Class C
- 2016 - 2016 Coachmen Concord Motorhome E-350 - Class C
- 2016 - 2019 Coachmen Concord Motorhome E-450 - Class C
- 2019 - 2020 Gulf Stream Conquest Class C Motorhome E-350 - Class C
- 2019 - 2022 Gulf Stream Conquest Class C Motorhome E-450 - Class C
- 2016 - 2022 Gulf Stream Conquest Motorhome E-350 - Class C
- 2016 - 2018 Gulf Stream Conquest Motorhome E-450 - Class C
- 2022 - 2022 Coachmen Cross Trail XL Motorhome E-350 - Class C
- 2022 - 2022 Coachmen Cross Trail XL Motorhome E-450 - Class C
- 2020 - 2020 Coachmen Cross Trek Motorhome E-350 - Class C
- 2016 - 2018 Phoenix USA Cruiser Motorhome E-350 - Class C
- 2016 - 2019 Phoenix USA Cruiser Motorhome E-450 - Class C
- 2022 - 2022 Thor Daybreak Motorhome E-350 - Class C
- 2015 - 2024 Ford E-Series Cutaway E-350 - Class A
- 2015 - 2024 Ford E-Series Cutaway E-350 - Class C
- 2015 - 2024 Ford E-Series Cutaway E-450 - Class A
- 2015 - 2024 Ford E-Series Cutaway E-450 - Class C See All Vehicle Fits
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
- Wrong item was ordered
- etrailer mistake
- Too difficult to install
Customer Reviews
Roadmaster Front Anti-Sway Bar - 1-3/8" Diameter - RM-1139-176
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 front axle and to the frame to balance weight transfer and reduce body roll.by: Bill 04/18/2023
2018 Ford E-Series Cutaway
The last thing to upgrade my front suspension on my 2018 Winnebago Aspect 27k. Money well spent! Easy installation, the ride greatly improved. Etrailer shipped this fast and I'm very pleased. Thanks.
by: Tony07/16/2023
I installed both front and rear Road Master anti sway bars on our last RV and they made a tremendous improvement in handling. It was easy for me to install by myself in my driveway on out Coachman Leprechaun 319MB. I highly recommend this product.
by: Earl 04/15/2023
Thor
Free from the roller-coaster ride my 2022 thor motorhome had with the factory bars.I have questions about why these companies don't install the suspension while building the rv.
Earl
4/16/2024
Drove 4000 miles towing a Jeep through the mountains out west. Before installing the sway bars front and back. Factory bars made our motorhome swayed and rolled. Straightened all issues out.
by: John 11/22/2022
2015 Ford E-Series Cutaway
Significant difference when making turns and going around curves. These twin I beam suspension have a tendency to follow uneven road surfaces, this pretty much eliminated a lot of that. Installed it myself with the Roadmaster end links and the only complaint I have is I had to enlarge bolt hole for the end link bolt, other than that, well satisfied. I also installed the rear sway bar at same time, highly recommend replacing the front and rear sway bars together.
John
11/23/2023
Completely satisfied, made a lot of difference in handling.
by: Greg07/19/2018
2012 Ford Van
I purchased a Roadmaster antisway bar to replace the stock bar on my 2012 Pleasureway Excel Motorhome which is on a Ford E350 chassis. I did the install myself and instructions were very clear and was not too difficult to do. Handling is much improved, I have noticed less body roll when turning or going over bumps. I have included photos to show the difference between the stock bar diameter and the beefier Roadmaster bar.
etrailer shipped promptly and customer service was great.
Greg
7/19/2019
The roadmaster antisway bar is still working great! As a side note, I also had installed professionally the Roadmaster Active Suspension. Between these two products, my motorhome now drives like it’s on rails. Anyone with the same Pleasure Way model should seriously consider both of these products.
by: Ron 04/05/2024
It is beyond my comprehension why camper and motor coach manufacturers build their products so subpar concerning how they handle on the road. I’m thankful that ETrailer for their expertise and products to get my Class C coach road ready, safer and more comfortable to drive.
by: JackO02/09/2024
2018 Ford E-Series Cutaway
Your staff is always so helpful if I have questions and most times you have several videos for installations of your products. This sway bar was priced great and shipping was super fast. Over the years of shopping at your Web site, I have never been disappointed.
by: Robert 03/17/2024
2021 Ford E-Series Cutaway
The videos you have are excellent making it easy to install the components. The sway bar would have been easy to install if one of my bolts didn't give me problems. I was using a Ryobi 18v impact tool to remove the bolts. The second one I tried to remove was just barely moving and the part was lose. I was afraid I was going to break something and ruine our upcoming trip. After this trip I'll take it to a shop and get them to do it. I think the sway bar will be a big help with the steering on our Class C.
by: Carey04/14/2024
Very heavy duty sway bar. Using it on a 2016 Thor Vegas 25.3 RV. Much thicker than original and still holding up fine. Helps to stabilize in high winds and passing trucks. Also added the Safe-T-Plus stabilizer to keep wheels from wandering.
by: David01/23/2024
Roadmaster
What a phenomenal difference driving my motorhome after upgrading to the Roadmaster swaybars front and back. Install was straightforward and only took an hour or so per axel. Money well spent!
by: Mark12/20/2023
I waited all this time to really evaluate the front anti-sway bar. This and a pair of Bilstein shocks made a tremendous difference in my rv's handling. I no longer am constantly compensating for wind gusts generated by passing vehicles and tilted road surfaces that tend to cause the rv to wander down the tilt. I can relax more when I drive long trips.
by: Jose 04/21/2024
Follow up with my front sway bar comment
by: Mark 12/09/2023
Made a ton of difference in the drivability of my 2018 TMC 31W. Stopped the 'side to side' pull in windy conditions. Easy to install. Very happy with results. Was made even better when I added the Rear Anti-Sway bar.
by: Rick 04/02/2024
The package was delivered on time and fit exactly as expected. I'll definitely purchase from etrailer.com again.
by: Ronald 04/21/2023
2023 Ford E-Series Cutaway
This is the 2nd RV I put these on and if I ever get a 3rd one I would do it again.
Ronald D.
4/23/2024
Wouldnt want to drive without it.
by: Brian04/23/2017
2015 Ford E-Series Cutaway
I purchased and installed both the front and rear Roadmaster anti-sway bars for our class C motorhome. It didn't solve all of our issues but it was a huge step in the right direction. Coupled with a larger steering stabilizer, Bilstein shock absorbers & rear helper air springs, the ride has improved by leaps and bounds. We feel much safer driving down the road in the high winds. Roadmaster makes a great product and install was a breeze. I would recommend their products to anyone.
by: Preston H04/19/2024
Chevrolet Cobalt
much improvement over OE. only draw back are the holes. went thru 4 1/2" cobalt bits and 1 drill. i had to take it to a shop to have them enlarge the holes for the new links (R057FR) to fit. much heavier and thicker than OE. get the new links. i don't think OE links will hold up.
by: Fernandoas03/21/2023
Easy install we going on the road in a couple of weeks thank you etrailer
by: Daniel06/10/2022
Super nice people to work with. Was on the road and had it shipped to repair facilty within 48 hrs. Sway bar is just what i needed for those west winds. No more being pushed aside by the big rigs( at least alot less). Thx again
Daniel
6/11/2023
Gotta say. After a year. No failures. Works out great. Takes 5 mins to set up or take down. Highly recommended without reservation. Best flat towing option out there
Mike L.
7/12/2023
@Daniel Glad to hear the # RM-1139-176 Roadmaster Anti-Sway Bar is working well for you!
by: Jason 07/10/2023
Big difference from the stock sway bar. Helped greatly, but more is needed than just the sway bar. I installed a saf-t-steer, as well as sway and track bars in the rear. I've got the shocks left to do. I can now drive easily without fighting the rig in all conditions. Mine is a 31' class C.
by: David 07/10/2023
2018 Thor Freedom Elite Motorhome
The installation of the Roadmaster anti-swaybar (1139-176) along with the Roadmaster end links (RO57FR) was and easy installation. The videos that are provided by etrailer were very helpful. I noticed huge difference in the way the motor home handles on just the test drive. I am excited to see how it performs on the highway.
by: Warren06/11/2020
Received my 2019 E450 front Roadmaster sway bar yesterday and installed it today.
Easy install, Instructions sheets was easy to understand. Did a test drive for 10 miles, Boy what a difference. Feels great , nice and tight , now have front and rear sway bars from Etrailer as well as steering stabilizer . makes my Class C handle much easier going down the road. These sway bars are much thicker than the ford standard bars. Etrailer has great videos to show all installs. Thanks Etrailer for all the info.
by: Jay 09/03/2023
2022 Ford E-Series Cutaway
you have only listed the front bar i have both on my class c motorhome. They are great together, you need both front and rear bars to make the difference. no more white knuckles when semis pass. You will still get pushed a little by the big rigs, but not as much as if you had the stock bars. wind doesn't bother you as much either. Great products would recommend getting both for your rv
by: Michael04/19/2024
2015 Ford E-Series Cutaway
Great company to deal with, fast shipping and excellent service.
by: David 03/28/2024
Improved stability almost makes for an enjoyable drive
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view full answer... - Does Roadmaster Rear Anti-Sway Bar For 2022 Thor Vegas 24.3 Require DrillingThe Roadmaster Rear Anti-Sway Bar # RM-1139-147 does indeed require drilling to install, though that is not the correct fit for your 2022 Thor Vegas 24.3. I verified directly with Roadmaster the correct fit for a rear anti-sway bar on your rig is the following: - Roadmaster Rear Anti-Sway Bar # RM83ZR The # RM83ZR also requires drilling, in this case a 17//32" hole in the frame rail to bolt on the endlink. That said, the front anti-sway bar does not require drilling to install, and the...
view full answer... - Type of Drill Bit to Use with Install of Replacement End Link Set # RO57FRWhen installing the end link kit part # RO57FR you do sometimes need to use a 1/2 inch drill bit to enlarge the holes on the sway bar. You do need to make sure you are using a drill bit designed for metal and not softer materials as they won't survive. Titanium drill bits tend to work the best for drilling into harder steel so that would be what I would recommend.
view full answer...
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Bill
4/19/2024
After a year I noticed a great improvement in handling. This was worth upgrading!