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  1. Anti-Sway Bars
  2. Roadmaster
  3. Anti-Sway Bar
  4. Front
  5. 1-3/4 Inch Diameter
  6. Steel w Polyurethane Bushing
THIS ITEM IS NOT A FIT FOR
2012 Toyota Sienna

Roadmaster Front Anti-Sway Bar - 1-3/4" Diameter

Item # RM-1139-148
Our Price: $556.45
Anti-Sway Bars
Not Confirmed to Fit

2012 Toyota Sienna

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Shipping Weight: 61 lbs
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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 front axle and to the frame to balance weight transfer and reduce body roll. 1-800-940-8924 to order Roadmaster anti-sway bars part number RM-1139-148 or order online at etrailer.com. Free expert support on all Roadmaster products. Great prices and Fastest Shipping for Roadmaster Front Anti-Sway Bar - 1-3/4" Diameter. Anti-Sway Bars reviews from real customers.
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Roadmaster Anti-Sway Bars - RM-1139-148

  • Anti-Sway Bar
  • Roadmaster
  • Front
  • 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 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
  • Works with rear 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.



1139-148 Road Master Anti-Sway Bar - Front

Replaces Roadmaster 1139-140 and 1139-206

Installation Details RM-1139-148 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Roadmaster Front Anti-Sway Bar - 1-3/4" Diameter - RM-1139-148

Average Customer Rating:  4.8 out of 5 stars   (1857 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:

Item shipped quickly and the installation was fairly easy in my opinion. Have not been able to drive the RV yet but I'm sure this upgrade will improve the handling.

Lawrence W.

4/28/2024

It is working as advertised. My 26k F53 chassis doesnt rock or sway as much as it did with the manufacturer anti-sway bar. Definitely beefier and easy to install



by:

The antisway bar was a great investment. Between Etrailer'S videos and the packaged instructions, the installation was straight forward. Great product.



by:

Very smart investment. In combination with the upgraded rear anti-sway bar the amount of steering inputs was greatly reduced. Definitely extended the miles I now drive per day.



by:

I'm glad i put the front anti-sway bar on. It does make driving easier.



by:
Ford

The older Southwind on a Ford chassis is nearly undriveable with OEM STAB BAR. Your bar alleviated my sway problem.



by:
2018 Thor ACE Motorhome

The anti sway bar showed up in a week, instructions were good. It was harder to get the old sway bar out than installing the new bar.



by:
2018 Ford F-53

complete package of needed parts with very concise installation instructions
very good quality of the parts themselves and they will be more than adequate for the job they will perform THANKS.



by:

The group at etrailer are absolutely great. UPS lost my order out of the box and delivered me an empty box. Called in to etrailer and they took care of the claim with UPS empty box was delivered on Wednesday I had a replacement on Saturday. Totally a five star service



by:
2013 Ford F-53

Great company to deal with, sway bar & steering stabilizer look well built will be installing in a couple months



by:

Had this installed along with a rear sway bar & steering stabilizer. The rig doesn’t wear me out anymore, I can drive all day long. Just the result I was hoping for.



by:

Best thing I have done to improve the driving and handling of our RV. Thanks to ETRAILER for helping me get the right parts and their professional support helping me return the wrong part I ordered.



by:

again my parts came so fast and ahead of time ETrailer is the best place to get your stuff and their 100% Pros and easy to talk to and deal with.... !!

Greg

8/30/2023

Simply amazing



by:

Truly an improvement especially cornering. My Class A F 53 chassis suffered in strong winds and the sway bar helped in these situations as well.



by:

needed to replace front anti sway bar on my 2004 Class A RV. not stiff enough. Long story short, folks at etailer fulfilled all aspects of ordering and shipping as they said. Very, very pleased with them and their product. Highly recommend.



by:

Works great on my 2019 Thor Windsport 34j. Improved handling.



by:

Everything fix correctly but when called in too you I was told that you didn’t have a sway bar that fit my motorhome I took it on my own and order it and it fit great Thank you



by:
Roadmaster

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:

Got delivery in a timely manner. All items were as advertised and installation hardware was complete.
The Sumo Springs and heavy duty sway bars made a SIGNIFICANT difference in the ride and handling.
Would have no problem ordering from this company again. They were also very helpful and patient on the phone.



by:

Installed as described



by:

The Anti-Sway bar is a positive improvement. The coach still needs additional handling improvements but, no motorhome will handle like a car or pickup.



by:

It made a great improvement to our motor home while driving down the highway. Very happy with the purchase



by:
2013 Ford F-53

Quality product. Packaged exceptionally good and protective.
I have bought several great Roadmaster items from etrailer and it has always arrived on time. This order came a day early.
Very happy.



by:

Definitely a big difference in the drive! I was expecting longer bolts that hold the sway bar.



by:

Best upgrade for a class A motorhome!

Joel

6/24/2023

Still great but have had a four point Liquid Springs system to the suspension.



by:

This sway bar was a priceless purchase! Easy driving now!


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Show More Reviews

See what our Experts say about this Roadmaster Anti-Sway Bars

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    The anti-sway bars for the E-Series van and cutaway chassis is not the same as for the F-series. You will need to select the Van option in the fit guide for the E-450 Class C. For the 2003 E-450 Chassis Class C Motorhome with a V-10 gas engine, the proper components are as follows: - Roadmaster Rear Anti-Sway Bar, # RM-1139-147 - Roadmaster Front Anti-Sway Bar, # RM-1139-115 Please note the linked product review and installation videos below.
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Info for this part was:

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