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  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 - 1-3/4" Diameter
Roadmaster

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

Part Number: RM-1259-109
In Stock
$1,059.72
Retail:$1,372.00
You Save: $312.28
Anti-Sway Bars

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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. 1-800-940-8924 to order Roadmaster anti-sway bars part number RM-1259-109 or order online at etrailer.com. Free expert support on all Roadmaster products. Great prices and Fastest Shipping for Roadmaster Rear Anti-Sway Bar - 1-3/4" Diameter. Anti-Sway Bars reviews from real customers.
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Roadmaster Anti-Sway Bars - RM-1259-109

  • Anti-Sway Bar
  • Rear
  • Roadmaster
  • 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.



1259-109 Road Master Anti-Sway Bar - Rear

Installation Details RM-1259-109 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Roadmaster Rear Anti-Sway Bar - 1-3/4" Diameter - RM-1259-109

Average Customer Rating:  4.8 out of 5 stars   (2051 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.

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Show More Reviews

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

  • Recommended Suspension and Sway Improvements for 2002 Winnebago Adventurer
    The order of support and stabilization I recommend is to first add the Rear Anti-Sway bar, then the Front Anti-Sway, then the Steering Stabilizer. Next use the Rear Helper Springs followed by the Front Helper Springs. To give you my recommendations, I need to know what frame you have as well as the length and weight of the vehicle. For instance, the Roadmaster Rear Anti-Sway Bar # RM-1259-108 will work on the Workhorse W20 or W22 chassis if it is under 33 feet. If you have the W22...
    view full answer...
  • Recommended Rear Anti-Sway Bar For A 2003 Itasca Winnebago Suncruiser Class A Motorhome
    The thicker the diameter of the anti-sway bar the better it's going to preform. The Roadmaster Rear Anti-Sway Bar # RM-1259-108 has a 1-1/2" bar diameter and the Roadmaster Rear Anti-Sway Bar # RM-1259-109 has a 1-3/4" bar diameter. This means that the # RM-1259-109 is going to be slightly better at minimizing the sway and body roll you feel when traveling on the highway or when making tight turns. Note: If your 2003 Itasca Winnebago Suncruiser has Firestone Ride-Rite air bags then...
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  • Recommendations For Reducing Sway And Body Roll In A 2004 Fleetwood Bounder 35E Workhorse W22
    With your Fleetwood Bounder being a 2004, I was unable to find out if it did or did not come with factory sway bars. However, this does not mean they cannot be added if there are no factory ones, or upgraded if there are. With that said, let's get into it. As a side note, all of these are designed to fit the 35E Workhorse W22 and are American made. To start, we have the Roadmaster Rear Anti-Sway Bar # RM-1259-109. This has a 1-3/4" diameter and will be more robust than factory sway bars....
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  • Recommended Rear Anti-Sway Bar for 2008 Workhorse W24 Chassis
    Both the Roadmaster Rear Anti-Sway Bar parts # RM-1259-109 and # RM-1259-108 that you referenced are designed to fit your 2008 Workhorse W24 Chassis. The difference between the two items is the RV length they are best suited for. If your RV is 33 feet or longer, you will want to go with # RM-1259-109 and if it is shorter than this you will need # RM-1259-108. Either item will do a great job of minimizing sway and driver fatigue by improving the stability and driveability of the vehicle....
    view full answer...
  • Anti-Sway Bar Recommendation for 2002 Chevy Workhorse W22
    We'll typically recommend folks start with a rear anti-sway bar which will solve handling problems the majority of the time. For your 36 foot 2002 Workhorse chassis, use the # RM-1259-109. If your motorhome follows ruts in the pavement, you'd want to add a steering stabilizer like # RM-RBK13-RSSA.
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  • How To Install The Roadmaster Rear Anti-Sway Bar On A 2006 Workhorse W22 Chassis
    The reason the Roadmaster Rear Anti-Sway Bar # RM-1259-109 has a spacer between the spring plate and mounting plate is because most spring plates for this specific fit angle down and would interfere with the way the plate would sit without some sort of spacer in place. In your specific case since your shock mount is separate you'll want to install the sway bar mount under the spring plate and then the shock mount under the sway bar mounting plate (pictured below).
    view full answer...
    Image 1 for
  • Installation of the Roadmaster Rear Anti-Sway Bar
    The Roadmaster Rear Anti-Sway Bar part # RM-1259-109 is a bolt-on component that does not require the rear wheels to be removed. Please note the linked installation instructions for you to review.
    view full answer...
  • Sway Bar Recommendation For 2003 Workhorse W-Series 22
    According to my research the Roadmaster Rear Anti-Sway Bar part # RM-1259-109 will install on the 2004 Newmar Scottsdale that is on a 2003 W-22 Workhorse chassis. The Newmar Scottsdale from my research is 33-1/2 ft so according to Roadmaster you will not have any issues installing the sway bar. If the motor home was shorter than 33 ft the sway bar would not fit properly and you would need part # RM-1259-108. The metal box in the photo does not interfere with the installation location...
    view full answer...
    Image 1 for
  • Recommended Roadmaster Rear Anti-Sway Bar for a 2005 Newmar Mountain Aire 3778
    According to my research your 2005 Newmar Mountain Aire 3778 is on a Workhorse W-24 chassis therefore the correct rear anti-sway bar for you is the Roadmaster Rear Anti-Sway Bar for Motorhomes part # RM-1259-109. The Roadmaster Rear Anti-Sway Bar for Motor Homes part # RM-1259-108 would still work for you but it only has a 1-1/2" diameter bar whereas the above anti-sway bar has a 1-3/4" diameter bar and will better suited for your motorhome. I have attached a review video on the above...
    view full answer...
  • Rear Sway Bar Recommendation for a 2002 Workhorse W20
    For your 2002 Workhorse W20 chassis you would want the part # RM-1259-108 as a rear sway bar and not the # RM-1259-109 that you referenced.
    view full answer...
  • Improving Handling and Reducing Sway of 2006 Fleetwood Bounder W22 Chassis
    We have just what you need to improve the handling of your 2006 Fleetwood Bounder W22 chassis with the rear sway bar part # RM-1259-109. For Class A motorhomes like yours the biggest ride quality improvement you can make is with a rear sway bar. This will be a night and day difference. Next biggest improvement you'll make is with a front sway bar which the part # RM-1259-106 is the correct kit which also includes a TruTrac rod kit as well. Finally the next biggest improvement you'll make...
    view full answer...
  • Should Roadmaster Trac Bar or Steering Stabilizer be Used to Improve Steering on W22 Chassis
    The front trac bar that comes in the Roadmaster Kit # RM-1259-106 that you referenced will do the same job as a steering stabilizer but won't be as effective. For the best of both worlds I recommend going with the front Anti-Sway Bar # RM-1259-105 and the Steering Stabilizer # RM-RBK13-RSSA. The trac bar is a piece of metal that adds stability while the stabilizer uses a spring to push you back to a neutral position. If your 2005 Dolphin is 33' or longer then the rear anti-sway bar you...
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  • Best Sway Bar Recommendations for a 2003 W22 Series Workhorse RV
    From the research I did it looks like your 2003 RV M6342LX Workhorse is a Dolphin built on the W22 chassis. For a front sway bar you would want the # RM-1259-106 and for the rear the # RM-1259-109.
    view full answer...
  • Suspension Enhancement Options for 2004 Gulf Stream Sun Voyager on Workhorse W22 Chassis
    We do have a number of suspension enhancement options that are going to fit your 2004 Gulf Stream Sun Voyager 8368MXG built on a Workhorse W-22 chassis, but there isn't a SuperSprings Stabilizer and Sway Control Kit for this motorhome. The best option for sway control for your motorhome is a rear anti-sway bar because they are better constructed with higher-strength, thicker steel than OEM sway bars. This means the bars are stronger with much higher roll stiffness to combat sway, and their...
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  • Rear Anti-Sway Bar for a 2003 Winnebago Adventurer on a Workhorse Chassis
    Regardless of the length of your RV you can use the Roadmaster anti-sway bar # RM-1259-108 (for 2003 Workhorse W20, W22, and W24 chassis). Bar # RM-1259-109 only fits the W22 and W24 chassis that are 33 feet long or longer like you said. Your 2003 Winnebago Adventurer 33V is 33 feet and 6 inches long so you can use this bar. I have also included a link to our help article on heavy duty vehicle stability for you.
    view full answer...
  • What are the Dimensions of the 2006 Monaco LaPalma Roadmaster Rear Anti-Sway Bar RM-1259-109
    I went out to the warehouse and pulled anti-sway bar # RM-1259-109 to measure it for you. First, let me just say that it is a beast! Definitely an upgrade. Now on to the measurements! I took several measurements: Front to back measured from the center of where it mounts to the center of the bar is 16-1/2 inches. To the far end of the bar it is 17-1/2 inches. Side to side at the widest point it is 44 inches. And down where it mounts from outside to outside it is 34-1/2 inches.
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    Image 1 for
  • Correct Rear Anti-Sway Bar for 2007 Tiffin Allegro Bay 37QDB on Freightliner FRED Chassis
    The Roadmaster Rear Anti-Sway Bar for Motorhomes # RM-1209-130 is the correct fit for your 2007 Tiffin Allegro Bay 37QDB Motorhome on Freightliner FRED chassis. This is the only confirmed fit.
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  • Rear Sway Bar Recommendation for a Workhorse W22 Workhorse Winnebago Adventurer
    Actually 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.
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  • Improving the Ride Quality of an RV Built on a 2005 Workhorse W22 Chassis
    Yes! 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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  • Will Anti-Sway Bars Give Additional Support With Steering Stabilizer on 2007 Workhorse W22 Motorhome
    The Roadmaster Reflex Steering Stabilizer # RM-RBK13-RSSA will provide you with some stability on your 2007 Workhorse W22 motorhome, but a rear anti-sway bar is the best ways to provide stabilization for your motorhome. The reason is because they are such a vast improvement over the OEM sway bars and their placement at the rear of the vehicle allows for the greatest improvement in handling. After that, the best way to increase your rig's handling and comfort is with a front anti-sway bar,...
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  • Roadmaster Anti-Sway And Stabilizing Systems For Workhorse W24 Chassis
    For your 2010 Winnebago Adventurer 37F with 2009 Workhorse W24 Chassis, the Roadmaster Reflex Steering Stabilizer with Mounting Brackets for Class A Motor Homes # RM-RBK13-RSSA is a great choice and a confirmed fit. It keeps your motorhome in line by constantly working to maintain its position. It minimizes wander and corrects oversteering so the driver doesn't need to work as hard to steer so it reduces fatigue. The Roadmaster Front Anti-Sway Bar for Motor Homes # RM-1259-106 improves...
    view full answer...
  • Anti-Sway Bar for 2003 Itasca Suncruiser 35U Motorhome
    For that model year, Roadmaster offers a few different fits, but I was unable to confirm which Workhorse chassis your Itasca 35U motorhome used. For W22 and W24 chassis motorhomes that are 33 feet or longer, use # RM-1259-109 or for W20, W22 or W24 chassis under 33 feet long, use # RM-1259-108. If Firestone air helper springs have been added, you'll also need the # RM-590054-00 adapter kit which would need to be welded in place.
    view full answer...
  • Front and Rear Anti-Sway Bars for 2005 Newmar Mountain Aire 3778 Motorhome on Workhorse W-24 Chassis
    According to the original sales brochure I looked up, your 2005 Newmar Mountain Aire 3778 was built on the Workhorse W-24 chassis. The same brochure states that the overall length of your coach is 37 feet 5 inches. Given that information, you'd want to use the Roadmaster # RM-1259-109 for the rear anti-sway bar and # RM-1259-105 for the front. Sway bars essentially lock the axles down to the vehicle frame, so they can't rack which causes wandering and unwanted body roll. A steering...
    view full answer...
  • Recommended Steering Stabilizer And Anti-Sway Bars For 2007 Workhorse W-24 Motorhome
    There are several things you can do to improve the handling of your Workhorse W-24. The biggest improvement will be adding a rear anti-sway bar. Adding additional items like a front anti-sway bar and a steering stabilizer will improve the ride and handling as well. For your motorhome I recommend the Workhorse W-Series Roadmaster Rear Anti-Sway Bar, part # RM-1259-109. The anti-sway will help reduce fatigue and helps make it easier to keep the RV level and on the road. For a front anti-sway...
    view full answer...


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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Lindsey S
Updated by:
Lindsey S
Employee Shelly K
Updated by:
Shelly K
Employee Wilson B
Updated by:
Wilson B
Employee Isabelle B
Updated by:
Isabelle B
Employee Sabrina W
Updated by:
Sabrina W
Employee Jeff D
Installed by:
Jeff D
Employee David F
Installed by:
David F
Employee Jacob T
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Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee John S
Video Edited:
John S
Employee Laura H
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Employee Chris R
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Employee Conner L
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