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Roadmaster Polyurethane Bushing Kit for 1-5/8" Diameter, Factory Front Anti-Sway Bar

Roadmaster Polyurethane Bushing Kit for 1-5/8" Diameter, Factory Front Anti-Sway Bar

Item # RM-4139-127
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RM-4139-127 - Anti-Sway Bar Parts Roadmaster Accessories and Parts
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Attach these durable, flexible polyurethane bushings to the front anti-sway bar of your vehicle and experience a better, more controlled ride. Call 800-298-1624 to order Roadmaster accessories and parts part number RM-4139-127 or order online at Free expert support on all Roadmaster products. Guaranteed Lowest Price and Fastest Shipping for Roadmaster Polyurethane Bushing Kit for 1-5/8" Diameter, Factory Front Anti-Sway Bar. Accessories and Parts reviews from real customers.
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  • Reviews (21)
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Roadmaster Accessories and Parts - RM-4139-127

  • Anti-Sway Bars
  • Anti-Sway Bar Parts
  • Bushing
  • Roadmaster
  • 1-5/8 Inch Diameter
  • Front Anti-Sway Bar

Attach these durable, flexible polyurethane bushings to the front anti-sway bar of your vehicle and experience a better, more controlled ride.


  • Replacement bushings work with your factory, front anti-sway bar to improve the overall stability of your vehicle
  • Flexible design keeps anti-sway system from being too rigid
  • Polyurethane is durable and resistant to damage caused by oil, gasoline and ozone
    • Less wear means less give in your anti-sway system and better support
  • 2 Bushings and necessary hardware included
  • Made in the USA

Roadmaster Anti-Sway Polyurethane Bushings

Superior Construction

The lubricated bushings in your anti-sway system 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. These bushings, therefore, must be both durable and flexible. Polyurethane allows an appropriate amount of give and lasts longer than rubber, which is the standard material used in bushings, thus ensuring that the system is neither so rigid nor so malleable that it becomes ineffective.

4139-127 Roadmaster Bushing Kit for Front Anti-Sway Bar

Installation Details RM-4139-127 Installation instructions

This Product Fits The Following Vehicles

Customer Reviews

Roadmaster Polyurethane Bushing Kit for 1-5/8" Diameter, Factory Front Anti-Sway Bar - RM-4139-127

Average Customer Rating:  5.0 out of 5 stars   (21 Customer Reviews)

Attach these durable, flexible polyurethane bushings to the front anti-sway bar of your vehicle and experience a better, more controlled ride.

- RM-4139-127
2008 Monaco Monarch Motorhome

Great delivery and customer service! Used on my 2008 Monaco built Safari Simba, I needed 4 more of the smaller bushings on my 1-3/8" factory front sway bar. Didn't use medium sized bushings or fasteners.

- RM-4139-127

Unfortunately I only needed the sway bar bushings as I had already replaced links. I now have spares. Good job on delivery. Thanks again

I am happy to report after a trip last summer to Washington state and back to California all is well. Thanks for your follow-up
John - 05/27/2017

- RM-4139-127

Made a huge difference driving the motor home, especially on windy days.

- RM-4139-127
1989 Ford F-53

Really nice product. My old rubber bushings were destroyed so anything would have been an upgrade but these new bushings are the best. They are pricey but you get what you pay for. Installation was straight forward and I could feel a HUGE difference when I drove it.

- RM-4139-127
2011 Ford F-53

I replaced the rubber bushings on my 2011 22k F-53 chassis with these poly bushings, worth the price for piece of mind.

- RM-4139-127
1997 Ford F-53

Great Service, website was easy to find and order from and you all had a great selection. I have an older coach and was happy to find items to fit it. Only one issue, shipping said it was going to arrive on the 13th and it was delivered early on the 9th.. Again, great service, thank you.

- RM-4139-127

Please contact later for a review. I gave 5 stars for prompt delivery and ease of order process. Have not had time to install parts to check durability. Thank you

- RM-4139-127

I haven’t put the parts on yet but it looks like the right part and thank you for staying in there and making sure that it was delivered properly I’ll definitely come back to you for more help in the future thanks again Ira Chester

- RM-4139-127
2015 Ford F-53

Easy install with simple instructions.

These bushings are simply great. No issues at all. I will continue to purchase my RV and towing products from etrailer. The best products, prices, knowledge, and the best service people!!
Steven - 04/13/2020

- RM-4139-127
1996 Ford F-53

The old rubber bushings were completely worn out. Installing these made a huge difference.

- RM-4139-127

parts fit perfectly, and Jesse was great to deal with, thank you!

- RM-4139-127
2020 Winnebago Adventurer Motorhome

Parts were as expected and arrived within 3 days. Thanks!

- RM-4139-127

Item arrived quickly and in good condition. Thank you.

- RM-4139-127

Everything came quickly and fit perfect ly.

- RM-4139-127
2006 Ford F-53

Great product- shipped quickly and got here in good condition - what more can you ask for

- RM-4139-127
1992 Ford F-53

Parts worked

- RM-4139-127
2013 Ram 1500

Delivered quickly. Exactly what was pic tured

- RM-4139-127
1995 Ford F-53

- RM-4139-127

- RM-4139-127

- RM-4139-127


Ask the Experts about this Roadmaster Accessories and Parts

  • Anti-Sway Bar Bushings For 2005 Ford F-550 Chassis Class A Motorhome
    We do have bushing kits for the OEM anti-sway bar on your Sea Breeze built on a 2005 Ford F-550 chassis, and the bushings include the brackets as well. There are different bushings depending on the diameter of your anti-sway bar, so you will need to measure it to ensure you get the right kit, and I'll list out the options for you: - Rear 1-1/2" Diameter Bar: Roadmaster Polyurethane Bushing Kit for 1-1/2" Diameter, Factory Rear Anti-Sway Bar # RM-4139-125 - Rear 1-3/8" Diameter Bar: Roadmaster...
    view full answer...
  • Upgrading to Polyurethane Anti-Sway Bar Bushing On a 1998 Damon Daybreak
    The Roadmaster Polyurethane Bushing Kit part # RM-4139-127 for front and part # RM-4139-125 for rear are correct for a 1998 Damon Daybreak. We do offer just the replacement bushings for these but they are not designed to be used with the factory brackets. If done so, you risk the chance of the bushing slipping out causing damage as well as risking losing control of the motorhome. I don't have any dimensional drawing of the replacement bushings unfortunately.
    view full answer...
  • Replacement Anti-Sway Bar Bushings for Motorhome On Ford F-53 Chassis
    In order to replace just the factory anti-sway bar bushings on a Ford F-53 Chassis you have a few options which will be based on the location of the anti-sway bar (front/rear) and the gross vehicle weight rating of the coach (15,700 lbs, 16,000 lbs etc.) or diameter of the factory sway bar (1-1/2", 1-3/8", or 1-5/8"). If you need bushings for a front anti-sway bar and it is 1-5/8" diameter then you can use the Roadmaster Polyurethane Bushing Kit part # RM-4139-127 but if you need bushings...
    view full answer...
  • What Are the Dimensions of Roadmaster Polyurethane Bushing Kit # RM-4139-127
    I pulled the Roadmaster Polyurethane Bushing Kit # RM-4139-127 from our warehouse and took measurements for you. The metal bracket measures 4-1/2 inches center on center holes and 6-3/16 inches outside to outside. The linked photos show you the key dimensions of this replacement bushing for Ford F-53 (front) OEM bushings and brackets with 1-5/8 inch diameter.
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • Dimensions of Bushings in Roadmaster Rear Anti-Sway Bar Kit RM-1139-145
    The blue domed bushings in the Roadmaster Rear Anti-Sway Bar kit # RM-1139-145 are shown in the linked photo. Dimensions are indicated for you. Please note that the bushings and hardware for this sway bar are offered on their own as kit # RM-4139-127.
    view full answer...
    Image 1 for Image 2 for
  • Suspension Enhancement for Itasca RV on 2014 Ford F-53 Chassis
    I recommend having your suspension checked out to make sure there are no issues, but if everything is fine, suspension enhancement springs would help level your Itasca. I could not guarantee this will "fix" your lean but the SumoSprings Maxim Custom Helper Springs # SSR-187-54-1 are designed to help keep your RV level and minimize sway. These springs are for 2-wheel drive models - as each of the available springs we offer are - with a GVWR between 20,000 and 26,000 lbs. As for the bushings,...
    view full answer...
    Image 1 for
  • Replacement Bushings 2007 Four Winds Hurricane On 2006 Ford 53 Chassis
    Depending on the diameter of your existing bushings the Roadmaster Polyurethane Bushing Kit for 1 5/8 inch diameter # RM-4139-127 may fit. We also offer a few other sizes to choose from. Rear 1 1/2 inch Diameter Bar: Roadmaster Polyurethane Bushing Kit for 1 1/2 inch Diameter, Factory Rear Anti-Sway Bar # RM-4139-125 Rear 1 3/8 inch Diameter Bar: Roadmaster Polyurethane Bushing Kit for 1 3/8 Diameter, Factory Rear Anti-Sway Bar # RM-4139-300 We also have Replacement Split Bushing for...
    view full answer...
  • 2018 Forest River FR3 32DS Anti-Sway Bar Bushings and Replacement Sway Bars
    I would be happy to help you find those parts for your 2018 Forest River FR3 Motorhome. We have 3 different OEM bushing kits depending on which size sway bar your Motorhome came with. The first is the Roadmaster Polyurethane Bushing Kit for 1-3/8" Diameter, Factory Rear Anti-Sway item # RM-4139-300. This is for the 1 3/8" OEM rear anti-sway bar. The second is the Roadmaster Polyurethane Bushing Kit for 1-1/2" Diameter, Factory Rear Anti-Sway Bar item # RM88FR. This is for the 1 1/2"...
    view full answer...
  • Recommended Anti-Sway and Suspension Enhancement for 2020 Thor Minamar
    For your 2020 Thor Minamar, I recommend the Roadmaster Polyurethane Bushing Kit for 1-3/8" Diameter, Factory Rear Anti-Sway # RM-4139-300 which is a confirmed fit and the rear anti-sway has the most impact on the ride quality so this is the first element if you need to add parts in stages. This will help stabilize the rear end. For the front, I recommend the Roadmaster Polyurethane Bushing Kit for 1-5/8" Diameter, Factory Front Anti-Sway Bar # RM-4139-127. These combined will give you...
    view full answer...
  • Replacement 1-5/8" Sway Bar Bushings And U-Brackets For A 2004 Country Coach Magna
    For an 1-5/8" diameter bar on your 2004 Country Couch Magna I recommend Roadmaster Bracket for Anti-Sway Bar Split Bushings Item # RMB140 and Roadmaster Split Bushing for Anti-Sway Bar - 1-5/8" Item # RM205222-10. It is a good idea to check the other bushings as well. If any of them look worn or damaged I recommend replacing all of them with Roadmaster Polyurethane Bushing Kit for 1-5/8" Diameter, Factory Front Anti-Sway Bar Item # RM-4139-127.
    view full answer...
  • Replacement Polyurethane Bushings For a 2014 Ford F-53 18,000LB GVWR Chassis
    The Replacement Split Bushing # RM-205217-10 is designed for a 1-1/2" sway bar. If you have the factory sway bar on your 2014 Ford F-53 18,000LB GVWR Chassis be sure to check the size with a Digital Caliper # PTW80157 as it looks like it came with a 1-5/8" sway bar. That would use the Roadmaster Polyurethane Bushing Kit for 1-5/8" Diameter, Factory Front Anti-Sway Bar # RM-4139-127 to replace all the factory rubber bushings.
    view full answer...
  • Suspension Enhancement to Improve Ride Quality of 2017 Thor Windsport 29M
    You might begin by reviewing the acceptable range of inflation for the tires on your coach as well as examining the existing suspension to ensure it's in good shape. If that all checks out, I'd recommend going with an air ride suspension from Air Lift. An air ride system like # AL57344 for the rear axle and # AL88240 for the front axle would allow you to adjust the firmness of the ride until its perfect for your needs. An onboard dual-path compressor system like # AL25856 would allow you...
    view full answer...
  • Anti-Sway and Stabilization for 1997 Thor Residency Coach
    Your 1997 Thor Residency chassis is the F-53. The F-450 chassis is found on the Class C Motorhomes but the coaches are the F-53 chassis even with the smaller wheels tucked further under as you stated. I recommend you start with the rear sway bar then the front sway and then the steering stabilizer in order of importance for the most help. The correct parts for your coach specific so you will want: -Roadmaster Rear Anti-Sway Bar # 1139-144 -Roadmaster Polyurethane Bushing Kit for 1-5/8"...
    view full answer...
  • Anti-Sway Bar and Steering Stabilizer Recommendations-1997 Fleetwood Bounder on Ford F-53 Chassis
    The Roadmaster # RM-1139-143 is a fit for your Fleetwood Bounder on a Ford F53 chassis, however Roadmaster recommends going with the beefier # 139-144 for motorhomes 34 feet long and longer. You will need to check to ensure there is enough factory u-bolt available to accommodate the factory nut, washer and 1/2" plate. If the u-bolts are not long enough, the # RM-590050-00 u-bolt replacement kit is needed. For the replacement front bushings for the factory sway bar, use # RM-4139-127....
    view full answer...
  • Can You Upgrade the Front Sway Bar On a 1996 Tiffin Allegro Motorhome
    The Roadmaster Polyurethane Bushing Kit for Factory Front Anti-Sway Bars part # RM-4139-127 will fit your 1996 Tiffin Allegro Motorhome on a Ford F-53 Chassis and like an upgraded front sway bar will work to improve stability. Although they do not offer an actual upgraded front sway bar for your motorhome, the bushing kit is the next best thing as it will really tighten up the what I assume are very worn out factory bushings. These new bushings are made of polyurethane which are much stiffer...
    view full answer...
  • Recommended Ride Enhancement for 2018 Thor ACE 27.2
    The Roadmaster Polyurethane Bushing Kit for 1-5/8" Diameter, Factory Front Anti-Sway Bar # RM-4139-127 will be the best first step in assisting in control since the rear already has assistance. The second step would be to add a Steering Stabilizer # RM-RBK22-RSSA. These will greatly increase the handling of your Motorhome. The Suspension Enhancement # SSF-170-40-2 would be the third step. You shouldn't need to replace factory shocks after just 10K miles, so I would do this order and...
    view full answer...
  • Recommended Anti-Sway & Steering Stabilizer for 2020 Winnebago Adventurer Motorhome on F-53 Chassis
    For your 2020 Winnebago Adventurer Motorhome, the chassis you have is a F-53 so the anti-sway bars you will want will depend on the GVWR of your coach as they have many different sizes under the Adventurer model. For the Rear use Roadmaster Rear Anti-Sway Bar: - # RM-1139-146 for 18K - # RM-1139-145 for 20.5K - # RM-1139-149 for 22k-26K For the front use the Roadmaster Polyurethane Bushing Kit for 1-5/8" Diameter, Factory Front Anti-Sway Bar # RM-4139-127 for 18K-26k. For a steering...
    view full answer...
  • Correct SumoSprings for 2020 Mirada on Ford F-53 Chassis
    The correct SumoSprings that fit your 2020 Coachmen Mirada depends on what the GVWR is for your RV, but don't worry because we have a fit for all 2019 Ford F-53 options so you just need to choose from the list below (and/or let me know what model Mirada you have): Front Axle 16K - 22K - # SSF-170-40-2 24K - 26K - # SSF-173-40-2 Rear Axle 16K - 18K - # SSR-184-40-1 20K - 22K - # SSR-180-54-1 24K - 26K - # SSR-183-54-1 Other upgrades you can add to your Class A RV are front and rear sway...
    view full answer...
  • Sway Bars and Suspension Enhancement For a 2018 Holiday Rambler Vacationer XE 32A
    According to Holiday Rambler your 2018 Vacationer XE 32A is either going to be on a 2017 or 2018 Ford F-53 chassis with a GVWR of 22,000lbs. You can confirm that this information is correct with the chassis tag posted on the wall next to your drivers seat. The Roadmaster Front Anti-Sway Bar # RM-1139-148 will replace your factory sway bar. This bar is constructed of thick 4140 chromoly steel for superior strength and uses polyurethane bushings for increased stability over traditional...
    view full answer...
  • Suspension Upgrade Recommendations for Improved Ride on 2018 Thor Windsport 29M
    You are definitely on the right track for helping to make your ride more comfortable when traveling in your 2018 Thor Windsport 29M. The first things we recommend to upgrade are the steering stabilizer, which you've already done with part # RM-RBK22-RSSA, and the anti-sway bars. For the front we have the Bushing Kit # RM-4139-127 which is designed to upgrade an OEM 1-5/8" bar if it exists, and for the back you can use the Roadmaster Rear Anti-Sway Bar # RM-1139-146. If you happen to not...
    view full answer...

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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Lindsey S
Written by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Adele M
Updated by:
Adele M
Employee Wilson B
Updated by:
Wilson B
Employee Isabelle B
Updated by:
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