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  1. Anti-Sway Bars
  2. Roadmaster
  3. Anti-Sway Bar
  4. Rear
  5. 1-3/8 Inch Diameter
  6. Steel w Polyurethane Bushing
Roadmaster Rear Anti-Sway Bar and End Link Kit - 1-3/8" Diameter
Roadmaster

Roadmaster Rear Anti-Sway Bar and End Link Kit - 1-3/8" Diameter

Part Number: RM-1139-173-00
In Stock
$663.74
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 frame to balance weight transfer and reduce body roll. Includes end link kit. 1-800-940-8924 to order Roadmaster anti-sway bars part number RM-1139-173-00 or order online at etrailer.com. Free expert support on all Roadmaster products. Great prices and Fastest Shipping for Roadmaster Rear Anti-Sway Bar and End Link Kit - 1-3/8" Diameter. Anti-Sway Bars reviews from real customers.
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Roadmaster Anti-Sway Bars - RM-1139-173-00

  • Anti-Sway Bar
  • Rear
  • Roadmaster
  • 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 rear axle and frame to balance weight transfer and reduce body roll. Includes end link kit.


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, end link kit, easy-to-follow instructions, and bushing lubricant


Specs:

  • Bar diameter: 1-3/8"
  • 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.



1139-173 Road Master Anti-Sway Bar - Rear

590170-00 End Link Kit for Road Master 1139-173 Anti-Sway Bar - Rear

Installation Details RM-1139-173-00 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Roadmaster Rear Anti-Sway Bar and End Link Kit - 1-3/8" Diameter - RM-1139-173-00

Average Customer Rating:  4.8 out of 5 stars   (2053 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 frame to balance weight transfer and reduce body roll. Includes end link kit.

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Show More Reviews

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

  • Replacement Bushings and Bushing Sleeves for Roadmaster End Link Kit 590170-00
    Hey Joe, thanks for reaching out! To replace the bushings and sleeves for the End Link Kit for Roadmaster Rear Anti-Sway Bar # RM-590170-00 you need the following: - Bushing # RM74ZR (Need 4) - Bushing # RM-205223-00 (Need 4) - Bushing Sleeve # RM38DQ (Need 2) - Bushing Sleeve # RM52EQ (Need 2) The End Link kit has a limited lifetime warranty as does the Rear Anti-Sway Bar # RM-1139-173-00 you purchased. If you believe this is a warranty situation then you'll want to reach out to...
    view full answer...
  • Will The Roadmaster Rear Sway Bar RM-1139-173-00 Work With Aftermarket Diff Cover
    Hello Bill, thanks for reaching out. The Roadmaster Rear Anti-Sway Bar and End Link Kit # RM-1139-173-00 is the correct fit for your 2017 Ford F350 4x4 SRW. Roadmaster designs their sway bars so they will not interfere with larger aftermarket diff covers so it will be fine to use with something like the Magnatech you mentioned.
    view full answer...
  • Recommended Rear Anti-Sway Bar For A 2018 Ford F-250 Super Duty
    For your 2018 Ford F-250 Roadmaster recommends the # Roadmaster Rear Anti-Sway Bar # RM-1139-173, which would just reuse the factory end links. The # RM-1139-173-00 comes with new end links for models that have other suspension enhancements that could cause clearance issues with the sway bar. Either way you'll be getting the correct anti-sway bar, the end links are more of a case by case situation. I've attached a short video below where Dave will explain the difference in greater detail...
    view full answer...
  • Recommended Anti-Sway Bars For A 2018 Ford F-350 XLT
    The Roadmaster Front Anti-Sway Bar # RM-1139-176 isn't a fit for your 2018 Ford F-350 but Roadmaster does have a rear anti-sway bar that is confirmed to fit with part # RM-1139-173. If your factory bar is missing or the end links are in need of replacement then you'll want part # RM-1139-173-00 instead to get everything. If you want to replace your front anti-sway bar as well then you'll need part # RM-1139-180 as well. As far as installation goes, these are fairly easy installations...
    view full answer...
  • Recommended Rear Anti-Sway Bar For A 2020 Ford F-250 Super Duty 4x4
    For your 2020 Ford F-250 Super Duty 4x4 I recommend the Roadmaster Rear Anti-Sway Bar # RM-1139-173 if you can reuse the current end links you have from the factory and save yourself some money. If you can't for whatever reason, maybe yours are damaged or you have some other kind of suspension enhancement giving you clearance issues, then you'll need the # RM-1139-173-00, which is the same sway bar but in a kit with the end links. I've attached a video where Dave runs through the installation...
    view full answer...
  • Sway Bar Recommendation for 2013 Ford F-350 King Ranch Single Rear Wheel
    The correct rear sway bar for your 2013 Ford F-350 SRW 4x4 is the Roadmaster part # RM-1139-173-00 that you referenced. This was designed for trucks like yours that do not have the factory sway bar and will do a great job improving the handling and stability when towing your fifth wheel and when not towing.
    view full answer...
  • Compatible Rear Anti-Sway Bar For A 2015 Ford F-350 SRW 4x4
    Yes, the Roadmaster Rear Anti-Sway Bar and End Link Kit # RM-1139-173-00 would be the correct choice for your 2015 Ford F-350 since you don't already have a factory rear anti-sway bar in place. If you did have one in place you could just use the # RM-1139-173 since you wouldn't need the end link kit.
    view full answer...
  • How do the End Links From the Roadmaster Kit # RM-1139-173-00 Install on a 2015 Ford F-350
    Thank you for the questions about the Roadmaster Rear Anti-Sway Bar and End Link Kit # RM-1139-173-00 for your 2015 Ford F-350 Super Duty. I spoke with my contact at Roadmaster who wasn't sure why they don't have specific instructions for the end link kit but he did say that you just connect the links to the sway bar and then lift them up to holes in the frame which allow them to hang straight down. This kit is comprised of 2 different kits; the sway bar kit # RM-1139-173 and the End...
    view full answer...
  • Is Drilling Required To Install the Roadmaster Rear Anti-Sway Bar On a 2015 Ford F-250
    The Roadmaster Rear Anti-Sway Bar and End Link Kit part # RM-1139-173-00 is a custom fit for your 2015 Ford F-250 which means there is no drilling required. I checked with Roadmaster to confirm this for you. There are brackets welded to the axle for the sway bar to attach and then pre-drilled hole in the frame for the end links to attach. The review that you were referencing was not on the same Roadmaster Rear Anti-Sway Bar and End Link Kit listed above but rather one similar in which...
    view full answer...
  • Is a Rear Sway Bar Required for Truck Bed Campers on a 2017 Ford F-250
    Though not required, you will certainly reap some benefits from installing an upgraded rear sway bar like the Roadmaster Rear Anti-Sway Bar and End Link Kit part # RM-1139-173-00 on the rear of your 2017 Ford F-250. The Timbren springs you already have installed will do a good job of supporting the added weight but will not really do much for sway control. The added weight of the truck bed camper will affect your truck's ability to corner safety and installing the upgraded rear sway bar...
    view full answer...
  • Replacement Front and Rear Sway Bar Recommendations for a 2014 Ford F-350 for Towing
    Going with a heavier sway bar on the front and rear of your 2014 Ford F-350 will help improve handling and stability when towing your fifth wheel trailer. For the rear you would want the part # RM-1139-173-00, for the front you would want the part # RM-1139-180.
    view full answer...
  • Is Everything I Need to Install the Roadmaster Rear Anti-Sway Bar # RM-1139-173 on 2017 Ford F-250
    The Roadmaster Rear Anti-Sway Bar # RM-1139-173 contains the polyurethane bushings and mounting hardware to install onto your 2017 Ford F-250. The only extra item you would need is the end link kit. The sway bar and end link kit is available in one package, the Roadmaster Rear Anti-Sway Bar and End Link Kit # RM-1139-173-00. This kit will be everything you need to install the rear anti-sway bar on your 2017 Ford F-250.
    view full answer...
  • Will Roadmaster Sway Bar part # RM-1139-173-00 Work in Conjunction with Air Bag System
    Yes, the Roadmaster Sway Bar part # RM-1139-173-00 would work just fine on a vehicle that has Firestone air bags installed.
    view full answer...
  • Rear Anti-Sway Bar For a 2018 Ford F-350 Super Duty with Single Rear Wheels and No Factory Sway Bar
    You are correct! The Roadmaster Rear Anti-Sway Bar and End Link Kit # RM-1139-173-00 is the correct anti-sway bar for your 2018 Ford F-350 Super Duty with single rear wheels and no factory sway bar. I was able to verify this with Roadmaster.
    view full answer...
  • Can a Rear Sway Bar be Installed with Firestone Air Bags?
    There will be no issues at all installing a rear sway bar and air bag kit on your 2015 Ford F-250. As examples, the Firestone # F2597 will install in a different location than the Roadmaster # RM-1139-173-00. I included install videos of both of these products that show this as well. I do need to say that the # RM-1139-173-00 is specifically designed for vehicles that do not have a factory sway bar though. If you do currently have a factory one and are replacing it, you will need the #...
    view full answer...
  • Correct Rear Anti-Sway Bar for 2017 Ford F-350 Super Duty Pickup
    There are a few different options for your 2017 Ford F-350 Super Duty (crew cab, long bed, diesel) depending on the application. I'll list them below: Part # RM-1139-173 - 1-3/8 diameter factory replacement - Designed for single rear wheel pickups (all models). Part # RM-1139-173-00 - Designed for single rear wheel pickups (all models) where no factory rear bar is present. Part # RM-1139-193 - Designed for dual rear wheel pickups (all models).
    view full answer...
  • Rear Anti-Sway Bar For 2009 Ford F-350 Super Duty Dually To Carry Cab Over Camper
    We do have the Hellwig # HE66GR sway bar but in my experience I prefer the Roadmaster units for very heavy loads. If your 2009 Ford F-350 Dually already came with a sway bar you will need the Sway Bar # RM-1139-173. Otherwise we have the Sway Bar # RM-1139-173-00 if you do not have a factory sway bar.
    view full answer...
  • Will Using a Rear Anti-Sway Bar at the Rear of Truck Prevent Trailer Sway
    Installing an anti-sway bar at the rear of your truck may help control some of the trailer sway, but will not prevent trailer sway from happening. Installing a sway bar helps reduce the body roll and sway you will see on the tow vehicle, but does very little in preventing the trailer from swaying. Installing a weight distribution hitch with sway control will be the best option for preventing trailer sway. A weight distribution system will transfer the load pushing down on your rear axles...
    view full answer...
  • Will SuperSprings and Rear Anti-Sway Bar Work Well Together On a 2014 Ford F-350
    The SuperSprings Custom Suspension Stabilizer Kit part # SSA22 is a great option for a 2014 Ford F-350. It will do a great job of helping to providing extra support when towing or hauling. It can then be used with the Roadmaster Rear Anti-Sway Bar and End Link Kit part # RM-1139-173-00 no problem. The combination of the two should not be an issue as they really are designed for different purposes, weight distribution and sway respectively.
    view full answer...
  • How To Improve The Suspension On Your 2017 Ford F-250
    In order to gain the most stability and support for your 2017 Ford F250, you will want to install both support and sway control components. The most economical way to add support to your truck is by using the Timbren Suspension Enhancement System part # TFR250SDJ. The Timbren springs are a good way to add additional support to your vehicle while towing or hauling a heavy load however, the best way to add support to your truck would involve installing air bags such as the Firestone Ride-Rite...
    view full answer...
  • Sway Bar Recommendation for 2011 Ford F-250 with Slide In Camper that is Swaying
    Yes, the TorkLift StableLoad Rear Suspension Upgrade with Quick-Disconnects # TLA7310 is perfectly compatible with the SuperSprings kit you have installed on your 2011 Ford F-250. Since you are complaining about sway I'd actually recommend a thicker rear sway bar like the part # RM-1139-173-00 which is a confirmed fit for your truck and would make the biggest improvement in reducing sway.
    view full answer...
  • Rear Anti-Sway Bar Fit for 2016 Ford F-350 Dual Rear Wheels
    The Roadmaster Rear Anti-Sway Bar 1136-173 is confirmed to fit your 2016 F-350 with dual rear wheels. If your truck does not currently have a factory sway bar you will want to order part # RM-1139-173-00 that comes with the end link kit. If your truck does have a factory sway bar, then you will just need to order the Roadmaster sway bar with part # RM-1139-173. I have linked an installation video of this anti-sway bar on a 2015 F-350 that had a factory sway bar for your to review.
    view full answer...
  • Recommended Solution For Body Roll on 2018 Ford F-150 with Air Bags Already Installed Towing 5W
    Typically the air bags should be doing a decent job of helping with stability but sometimes it's just not enough with certain trailers in windy conditions. We do not carry vehicle/truck sway bars but you could add something like the RoadActive Suspension # RAS3611-YHD. You'll need to make sure, on your truck, that there is at least 3-1/4 inches between the u-bolts for spring stack and the air bag kit you have. If there is then you have room to install the RAS kit and it would definitely...
    view full answer...

Do you have a question about this Anti-Sway Bar?


Info for this part was:

Employee Lindsey S
Updated by:
Lindsey S
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 Jameson C
Expert Research:
Jameson C
Employee Laura H
Written by:
Laura H
Employee Dustin K
Video Edited:
Dustin K
Employee John S
Video Edited:
John S
Employee Jonathan Y
Video by:
Jonathan Y
Employee David F
Video by:
David F
Employee Clayton O
Test Fit:
Clayton O

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