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Extended U-Bolt Kit for Roadmaster Anti-Sway Bar

Extended U-Bolt Kit for Roadmaster Anti-Sway Bar

Item # RM-590050-00
Our Price: $169.59
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Use these 15-7/8" long U-bolts to install your Roadmaster anti-sway bar. The extended-length bolts are designed to replace your vehicle's square OEM U-bolts if they are too short. 1-800-940-8924 to order Roadmaster accessories and parts part number RM-590050-00 or order online at etrailer.com. Free expert support on all Roadmaster products. Great prices and Fastest Shipping for Extended U-Bolt Kit for Roadmaster Anti-Sway Bar. Accessories and Parts reviews from real customers.
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  • Reviews (31)
  • Q & A (0)
  • Videos (2)
  • Photos

Roadmaster Accessories and Parts - RM-590050-00

  • Anti-Sway Bars
  • Anti-Sway Bar Parts
  • U-Bolts
  • Roadmaster
  • Rear Anti-Sway Bar

Use these 15-7/8" long U-bolts to install your Roadmaster anti-sway bar. The extended-length bolts are designed to replace your vehicle's square OEM U-bolts if they are too short.


Features:

  • U-bolts replace square factory U-bolts that are too short to allow installation of your anti-sway bar
    • Roadmaster's anti-sway bars (RM-1139-143, 1139-144, and RM-1139-149) are used in conjunction with your vehicle's factory bar and mounts using the factory U-bolts
  • Made in the USA
  • Limited Lifetime Warranty


Specs:

  • Usable length: 15-7/8"
  • Thread length: 5-1/2"
  • Inside width: 4-1/4"


Dimensions of U-Bolt


590050-00 Roadmaster Anti-Sway Bar Extra Long U-Bolt Kit





Video of Extended U-Bolt Kit for Roadmaster Anti-Sway Bar

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Roadmaster Anti-Sway Bars RM-590050-00 Review

Speaker 1: Today, we're going to take a look at the extended U-bolt kit for the Roadmaster anti-sway bars. Now, these 15 and seven eighth inch long U-bolts are used to install your Roadmaster anti-sway bars to your vehicle. Now, the Roadmaster anti-sway bar kits number RM-1139-143, RM-1139-144, and the RM-1139-149 are all used in conjunction with the vehicle's factory bar and it mounts using the factory U-bolt.Some vehicles that those kits fit on, they may require these extended U-bolts. Basically, these extended length U-bolts are designed to replace your vehicle's square factory U-bolts if they're too short. These parts are made in the USA, and just to give you some dimensions on this. The usable length, which will be measured from the end here to the inside, going to be right at 15 and seven eighth inches.

The thread length, in other words how much thread is on the end of each one goes up to there, is going to be right at five and a half inches, and in the inside width is going to be right at four and a quarter inches wide.But, that should do it for the review on the extended U-bolt kit for the Roadmaster anti-sway bars.

Customer Satisfaction Score:


Customer Reviews

Extended U-Bolt Kit for Roadmaster Anti-Sway Bar - RM-590050-00

Average Customer Rating:  4.9 out of 5 stars   (31 Customer Reviews)

Use these 15-7/8" long U-bolts to install your Roadmaster anti-sway bar. The extended-length bolts are designed to replace your vehicle's square OEM U-bolts if they are too short.

by:

I purchased a Roadmaster sway bar kit and longer shackle bolts from E-Trailer. The sway bar came on time with free shipping! Upon closer inspection I realized I needed the longer shackle bolts. I called and found it was in stock and available in 2 days with free shipping! Their prices are very competitive and then you get excellent service. It also helps that the shipping was free at this time.

Rcwaz

10/11/2017

Thank you for asking. The sway bar continues to perform as expected.



by:

I purchased these U-bolts along with the Roadmaster rear anti-sway bar upgrade. I planned to install myself, but as it turned out installation required a very large torque wrench, that I did not have. As a note, a call to a third-party U-bolt source tech support suggested that the original U-bolts should not be reused, even if they're long enough. Apparently suspension U-bolt threads are cut in a manner not intended to be retorqued.



by:

Paula S at Roadmaster was a big help when I ordered our front and rear sway bars. She recommended these extended U-bolts and the mechanic who installed them said they were good and necessary.



by:

they have made the ride and handling of our motorhome a pleasure to ride in and drive.



by:

ALL THE ITEMS FROM ROAD MASTER WORKING AND GREAT AND MADE A GREAT DIFFERENCE IN THE RIDE OF OUR MOTOR HOME ...

John A.

12/22/2019

still working great



by:

I ordered the wrong U-bolts with my original order. Make sure you crawl under your coach and look before you order. I had a 50/50 shot and got it wrong. I definitely needed the longer U-bolts installing the rear sway bar on my 24000 GVW coach. The exchange with etrailer went through without a problem. Very good company to deal with. I had to pay a restocking charge but that was to be expected seeing how I made the mistake.



by:

We haven't installed these yet, so this is more a review of etrailer's service and shipping. All I can say is these guys know their stuff and are more than happy to share their wealth of experience with you prior to purchase and after the purchase. They will not leave you hanging and wondering how, when, where-ing your purchase. They have how-to videos, knowledge base articles, and vehicle match algorithms that all help you pick and install the correct product for your vehicle. The shipping is surprisingly fast........fast fast. My confirmation email said it would be 7-8 days and the packages arrived in two days. When I complete the install I will update this review with fit and performance data. So buy with confidence!
Paul



by:

This is the solution for the F53 Road Master Anti Sway bars #1193-144. These u bolts are over an inch longer than the stock ones, making Anti Sway bar install easy and safe. Ordered and delivered as scheduled, questions were answered by knowledgeable friendly staff.



by:

Prior to installation of this kit my RV acted like it was going to tip over as it swayed from side to side when I made a turn or was hit by a cross-wind. Post install the drivability of my 37' RV increased by 100%.



by:

Order received promptly new tail lights installed also rear sway bar thanks



by:

See review on our purchase of the Frt. Anti-Sway Bar



by:

Product made a great difference in the handling of my RV. Very easy to install. Due to shoulder surgery my daughter installed it for me!!



by:

These make life so much easier and are really essential with dual wheel setups.



by:

These did the job and worked great. They were the same length as my bolts on my 2019 Coachmen Mirada 35BH (F53) chassis.



by:

Have not had a chance to install yet. Hopefully this week. Service is always excellent from etrailer however.



by:

Do not but from anyone else. etrailer and their staff are second to none. Their follow through is the best in the business. Not to mention they let you know how long your wait will be. Who does that!!! I have ordered 7 items in the past month and have been more than pleased with all.

Thank you etrailer staff!!



by:

Easy installation!



by:

Stopped the rocking and made driving sa fer.



by:

product was as ordered and arrived in great shape



by:

PERFECT FIT NO MISTERYS



by:

GOOD PRODUCT



by:

great service competively priced. Very satisfied



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See what our Experts say about this Roadmaster Accessories and Parts

  • Best Way to Reduce Sway on 2017 Coachmen Mirada Select 37TB Motorhome on Ford F53 Chassis
    The 2017 Coachman Mirada Select 37TB is built on the Ford F53 chassis. To reduce the sway, you are absolutely on the right track with the parts you are requesting. I recommend the following parts: Roadmaster Rear Anti-Sway Bar for Motor Homes # RM-1139-149 along with the Extended U-Bolt Kit # RM-590050-00 if the factory bolts are not long enough to accommodate the factory nut, washer, and a new 1/2 inch plate. The extended u-bolts may not be needed if you have enough room on your factory...
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  • Anti-Sway Bars for a Motor Home Built on a 2016 Ford F-53 Chassis
    There are a few anti-sway bar options for motor homes built on the 2016 Ford F-53 Chassis. For the rear on your motor home I recommend anti-sway bar # RM-1139-149 which is for models rated for 24,000 pounds gross vehicle weight. For this model, 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; sold separately. If your motor home has the...
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  • Is Rear Anti-Sway Easy to Install On 2016 Fleetwood Bounder V10 On Ford F-53 Chassis
    The rear anti-sway bar that is designed to fit your 2016 Fleetwood is part # 1139-144. The installation does require drilling. Roadmaster states it will take about two hours for installation. If you need longer U-bolts you can use part # RM-590050-00. Installing the rear anti-sway bar will help reduce roll and help keep the motorhome balanced which means less driver fatigue. Many folks also install front anti-sway bars. For the front of your Bounder you would need part # RM-1139-148. We...
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  • How Do I Correct Sway From Crosswinds and Passing Trucks on 2019 Entegra Vision 26X Motorhome?
    This isn't uncommon to have this, but there are several products that can help enhance the factory suspension system on your 2019 Entegra Vision 26X combat what you're currently dealing with. The biggest improvement can be made by upgrading the rear sway bar on your Entegra, which will work to stop sway at the rear of the vehicle from crosswinds and passing semi-trucks. Since the Entegra Vision 26x is built on a Ford F-53 chassis, you'll need the Roadmaster Rear Sway Bar # RM-1139-146 ....
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  • Sway Bars and Suspension Enhancement For a 2018 Thor Miramar 37.1 Motorhome
    Yes, the Roadmaster Rear Anti-Sway Bar # RM25VR will fit your 2018 Thor Miramar 37.1 on the Ford F-53 24K chassis V10 engine. You will need to measure the length of the U-Bolt threads sticking past your current plates to ensure they are long enough for the Roadmaster 1/2" plates being installed. If they are not long enough you will need either the Square # RM-590050-00 or Round # RM-590050-10 U-Bolt Kit. The Roadmaster Front Anti-Sway Bar # RM-1139-148 is the front sway bar for your Miramar....
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  • 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...
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  • Rear Anti-Sway Bar for 2011 Georgetown 360 Motorhome on a Ford F-53 V10 Chassis and 22K GVWR
    The correct rear anti-sway bar for the 2011 Ford F-53 motorhome chassis V10 rated for 22,000 pounds is # RM-1139-149. 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; sold separately. I have linked a video showing an example installation for you. Rear anti-sway bar # 1139-144 only fits up to the 2005 Ford F-53 chassis.
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  • Diameter of the Rear Sway Bar by Roadmaster part # 1139-144
    The Roadmaster Rear Anti-Sway Bar # 1139-144 that you referenced is a 1-3/4 inch thick anti-sway bar. I confirmed this with Roadmaster. To determine if you will need the u-bolt kit # RM-590050-00 you will need to check out the current u-bolts your rear suspension is using. Basically if the u-bolt has enough threads above the nut to accommodate an additional 1/2 inch thick plate being attached to it you would not need the kit. If there's not enough threads on the u-bolt to accommodate an...
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  • Rear Anti-Sway Bar for a 2016 Thor Toy Hauler Built on a Ford F-53 Chassis with Triton V10 Motor
    The 2016 Thor Toy Haulers are large, ever for toy haulers. What I recommend is Roadmaster rear anti-sway bar # 1139-144. This bar has the largest diameter at 1-3/4 inches and comes with steel and polyurethane bushings. This bar will not only outperform the stock bars on RVs but will also last longer. 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...
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  • Recommended Anti-Sway Bar for 2017 Tiffin Allegro 34PA on F-53 Chassis
    A rear anti-sway bar is going to give you the most improvement. From my research, it looks like your 2017 Tiffin Allegro was built on a Ford F-53 chassis. The Roadmaster Rear Anti-Sway Bar - Ford F-53, # 1139-144 is made to fit V-10-equipped F-53 class A motor homes 34 feet or longer. This kit is designed to support the factory anti-sway bar and improve the overall stability of your vehicle. Longer U-bolts are available if needed, part # RM-590050-00. You also have the option of using...
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  • Rear Anti-Sway Bar and U-Bolt Replacement Kit Installation on a 2017 Canyon Star on F-53 Chassis
    The rear anti-sway bar # RM-1139-149 will fit the V10 Ford F-53 chassis if the gross vehicle weight rating is 22K, 24K, or 26K. Based on your description you will need # RM-590050-00 u-bolt replacement kit. I have included a link to a video showing an example installation for you. It is a good idea to lift the RV and then use jack stands to support just the axle. With the vehicle supported elsewhere and the axle supported by jack stands it is less likely for the vehicle to "slip" off the...
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  • What Front and Rear Suspension Enhancement do You Recommend for My 2021 F-53 Motorhome Chassis?
    From my available research on your 2021 Georgetown 36b5 motorhome, it has a Ford F-53 chassis and has a gross vehicle weight rating of 22,000 pounds. Unfortunately, for this particular model, we do not have a steering stabilizer available for your chassis model. The good news is that we do have SumoSpring suspension available for your front axle of your chassis. For that option, I recommend the SumoSprings Rebel Custom Helper Springs - 2 Piece - Front Axle # SSF-170-40-2. The SumoSprings...
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  • Rear Anti-Sway Bar for 2017 Thor Motor Coach Hurricane 31S With 2016 Ford F53 Chassis
    Yes, the Roadmaster Rear Anti-Sway Bar for Motor Homes, # RM-1139-146 will work on your 2017 Hurricane 31S with the 2016 Ford F53 Chassis with either a V8 or a V10. The anti-sway bar will use the weight of the axle as a brace against the chassis so that pressure to one side of the motor home is countered by the sway bar. It minimizes the side-to-side movement that cargo shift, wind or passing trucks can cause. On some applications longer u-bolts are required to install this kit. For square-end...
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  • Front and Rear Sway Bars Needed for a 2012 Winnebago 37F on a 2011 Ford F-53 Chassis
    You are correct in that you will want to be looking at fits for the 2011 Ford F-53 chassis as opposed to the 2012 year. For your Class A motorhome with a V10 you will want to use the Roadmaster Front Anti-Sway Bar # RM-1139-148 which is 1-3/4" in diameter, and the Roadmaster Rear Anti-Sway Bar # RM-1139-149 which is 1-5/8" in diameter. Since your motorhome is rated for 24,000 lbs the bar with the 1-5/8" diameter will work great. Please note that you will want to check to ensure there...
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  • Roadmaster Sway Bar Fit for Front and Rear of 2016 Bounder 33c Class A Motorhome on a F53 Chassis
    For your 2016 Bounder 33c Class A Motorhome on a F53 Chassis, I'd be happy to help you with the proper fit Roadmaster Sway Bars for the front and rear. For the rear, the Roadmaster Rear Anti-Sway Bar for Motor Homes, # 1139-144, is the proper fit for your coach. This kit is designed to improve the handling characteristics by reducing body roll and balancing weight transfer when cornering. It is designed to work in conjunction with your vehicle's suspension system. It is designed to...
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  • Sway Bars and Steering Stabilizer For With a 2023 Fleetwood Flair 29M On Ford F53 V8 18,000LB GVWR
    As your 2023 Fleetwood Flair is on a Ford F53 V8 18,000LB GVWR chassis you have 2 choices for the rear sway bar. The Roadmaster Rear Anti-Sway Bar # RM-1139-149 is 1-5/8" in diameter and mounts in addition to the factory sway bar. They also offer the 1-3/4" Rear Sway Bar # RM25VR. This will also mount in addition to the factory sway bar but is slightly stronger being larger in diameter than the 1-5/8" sway bar. You may need the Extended Square # RM-590050-00 or Round # RM-590050-10 U-Bolts...
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  • Correct Rear Anti-Sway Bar for 1991 Class A Motorhome on Ford F53 Chassis
    I have spoken with one of my contacts at Roadmaster, who confirmed that the Anti-Sway Bar Kit, part # RM-1139-143 that you referenced will indeed fit your Class A motorhome on the 1991 Ford F53 Chassis. This bar will be used ALONG WITH the existing factory bar. If the existing U-Bolts are not long enough to accommodate both the OEM and Roadmaster Anti-Sway bar, extended u-bolts are offered, part # RM-590050-00. To see the products I have recommended as well as installation details, click...
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  • 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....
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  • Recommended Suspension Steering and Anti-Sway Components for 2020 Ford F-53 Chassis
    My recommendation for increasing the stability of the 2020 Ford F-53 chassis is to replace the factory installed sway bars and adding a steering stabilzer. - Front Anti-Sway bar, # RM-1139-148 - Rear anti-sway bar, # RM-1139-149 - Steering Stabilizer, # RM-RBK25-RSSA You may or may not need # RM-590050-00 for square U-bolts or Round U-Bolt Kit, # RM-590050-10. - Rear Axle, SumoSprings Maxim Custom Helper Springs, # SSR-187-54-1 - Front Axle, SumoSprings Rebel Custom Helper Springs, #...
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  • Roadmaster Rear Sway Bar and Extended U-Bolt Kit Recommendation for a 2014 Ford F-53
    You will need to check the U-bolts you have currently to determine if there is enough thread for the 1/2 inch spacer that comes with the # 1139-144. You would need room for the spacer and still have 3 threads showing on the u-bolt. That is the only confirmed way to know if you will need the long U-bolt kit part # RM-590050-00 as well. Also, you should note that u-bolts should only be torqued once so going with this kit now will allow you to have everything you would need and you would...
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  • Suspension, Steering Stabilizer and Sway Bar Kits for 2006 Fleetwood Bounder on Ford F-53 Chassis
    For a Fleetwood Bounder Motorhome built on a 2006 Ford F-53 chassis we offer both suspension enhancement kits as well as anti-sway bars. For a front anti-sway bar for either the V8 or V10 version you can use Roadmaster kit # RM-1139-148 which is a no-drill replacement for the factory sway bar. For a rear sway bar for either V8 or V10 use Roadmaster kit # RM-1139-149 which again is a no-drill install that works along with the factory bar. Check to ensure there is enough factory u-bolt...
    view full answer...
  • Recommended Rear Anti-Sway Bar for 2018 Fleetwood Bounder on F-53 Chassis
    The Roadmaster Rear Anti-Sway Bar # RM-1139-149 referenced in your question is exactly what you need for your Ford F-53 chassis that features the V10 engine and 22,000 pound GVWR. This will do a great job of minimizing sway and driver fatigue by improving the stability and driveability of your RV. It will simply mount to the rear axle and to the frame to balance weight transfer and reduce body roll. No drilling will be required during installation. As you mentioned, you may need to add...
    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 Adam R
Expert Research:
Adam R
Employee Andrew K
Video by:
Andrew K
Employee Lindsey S
Written by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Dustin K
Video Edited:
Dustin K
Employee Wilson B
Updated by:
Wilson B
Employee Jenny M
Updated by:
Jenny M
Employee Shane H
Test Fit:
Shane H

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