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  1. Anti-Sway Bars
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FITS 2018 Jayco Redhawk Motorhome
Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter
Roadmaster

Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter

Part Number: RM-1139-147
In Stock
$790.00
Retail:$980.00
You Save: $190.00
Anti-Sway Bars
Confirmed to Fit
2018 Jayco Redhawk Motorhome

E-450 - Class C

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The best technical support and full anti-sway bars installation instructions. Great price Redhawk Motorhome anti-sway bars and expert service. Jayco Redhawk Motorhome, 2018 anti-sway bars by Roadmaster are available from etrailer.com. For expert service call 1-800-940-8924 to order your Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter part number RM-1139-147, or order online at etrailer.com.
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2018 Jayco Redhawk Motorhome - Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter

  • Anti-Sway Bar
  • Rear
  • Roadmaster
  • 1-1/2 Inch Diameter
  • Mounting Hardware Included
  • No Drilling Required
  • Fixed End Link

Minimize sway and driver fatigue by improving the stability and driveability of your Jayco Redhawk Motorhome. 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 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.



1139-147 Road Master Anti-Sway Bar - Rear

Installation Details RM-1139-147 Installation instructions

California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.8

2093 reviews
5 Stars
(1782)
4 Stars
(219)
3 Stars
(39)
2 Stars
(17)
1 Star
(36)
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.

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2093
Show More Reviews

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

  • 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...
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  • Replacement End Links for Roadmaster Anti-Sway Bar on 2019 Ford E-350/450 Class C Motorhome
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    The correct front sway bar for your Forester RV built on the 2017 Ford E-450 chassis is the Roadmaster # RM-1139-176. This is an excellent, 1-3/8" diameter anti-sway bar that features a 4140 chromoly steel construction for superior strength and is designed to work in conjunction with the RV's existing suspension system to allow for a really smooth ride during travel. It will simply attach to the front axle and chassis and use the weight of the axle to brace the frame during shifts and...
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  • Does Roadmaster Sway Bar for 2025 Ford E-450 Require Frame Modification
    Hey Peter, did they have any more insight on what the issue was? We've installed this sway bar several times without having to modify the frame but I am curious what they mean though. In meantime I attached a link to install video for this sway bar on a similar RV that you can show them.
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  • 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; the combination of these two 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 Thor Axis is the Roadmaster...
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  • 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...
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    If your 2008 Pleasure-Way Excel is built on the Ford E-350 van chassis then for a rear anti-sway bar you can use # RM-1139-117. If it is built on the E-450 van chassis use # RM-1139-147. For the front you can use # RM-1139-115 which will fit E-250 through E-450 chassis. I have included a link to our help article on heavy duty vehicle stability for you.
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  • Sway Bars for 2005 Coachmen Freelander Motorhome on E-450 Chassis
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  • Front SumoSprings Kiti that Fits 2006 Ford Class C E-450
    For the front axle of your 2006 Ford Class C E-450 motorhome we have the SumoSprings kit part # SSF-106-40 as only option. This will give your RV an additional 500 lbs of suspension support. The different colors of kits mostly relates to different capacities and constructions but for front axles there aren't quite as many options since most of the time it's rear support that people are looking for.
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  • Does Roadmaster Rear Anti-Sway Bar For 2022 Thor Vegas 24.3 Require Drilling
    The 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...
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  • Does Roadmaster Rear Anti-Sway Bar 1139-147 Require Drilling
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  • Steering Stabilizer Recommendation for 2011 Coachman Freelander Class C
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  • Anti-Sway Bars for a 2025 Entegra Odyssey 22EF
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  • Rear Suspension Enhancement for a 2015 Thor Outlaw 29H On a Ford E-450 Class C Toy Hauler
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  • Recommended Front And Rear Anti-Sway Bars For A 2023 Entegra Odyssey 24B Class C Motorhome
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  • Recommended Steering Stabilizer For A 2018 Jayco Greyhawk 26Y
    For a 2018 Jayco Greyhawk 26Y on a Ford E-450 chassis you would need the Roadmaster Exact Center Steering Stabilizer w/ Custom Brackets # RM47MR. This stabilizer is a simple bolt-on design with no drilling required. If you don't already have a rear sway bar then I recommend installing the Roadmaster # RM-1139-147 as well. If your front anti-sway bar is less than 1-3/8" thick then you can beef it up with the # RM-1139-189 as well.
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  • Recommended Steering Stabilizer For A 2022 Entegra Odyssey 30Z Class C Motorhome
    Since the 2022 Entegra Odyssey 30Z has a Ford E-450 chassis you'll need the Roadmaster Exact Center Steering Stabilizer w/ Custom Brackets # RM47MR. If you also wanted to upgrade your suspension with anti-sway bars you would need part # RM-1139-147 for the rear and part # RM-1139-189 for the front.
    view full answer...


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