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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
Retail:$189.35
Our Price: $161.41
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Shipping Weight: 18 lbs
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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:

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:

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:

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:

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:

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



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

  • Are Extended U-Bolts Needed To Install the Roadmaster Rear Sway Bar On a 2018 Jayco Precept 36T
    The Extended U-Bolt Kit part # RM-590050-00 (square) or part # RM-590050-10 (round) may be needed to install the Roadmaster Rear Anti-Sway Bar part # RM-1139-149 on your 2018 Jayco Precept 36T but I cannot give you a yes or no answer. The only way to know for sure would be to crawl under the motorhome and take a look at the factory u-bolts to ensure there is enough threads left to install an additional 1/2" plate.
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  • How To Increase Stability and Reduce Sway Of 2020 Bounder Motorhome on 2019 Ford F-53 Chassis
    It sounds like you meant that the Fleetwood Bounder is on a 2019 Ford F-53 chassis which is very common. The first step in increasing the stability of the 2020 Fleetwood Bounder on the 2019 Ford F-53 chassis is to replace the factory sway bars. The factory sway bars, especially on the Ford Chassis are not as good as the aftermarket sway bars at keeping the motor home in line. I recommend Roadmaster Front Anti-Sway bar part # RM-1139-148 and Rear anti-sway bar part # RM-1139-149. Before...
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  • Is Extended U-Bolt Kit Needed when Installing Anti-Sway Bar on 2000 Ford F53 Class A Motor Home
    The factory u-bolts will need to be long enough to account for the extra 1/2 inch of thickness and still have at least 3 threads exposed past the nut when properly installed. If you look at the u-Bolts now you can measure how much of u-bolt ends extend past the nut. Based on that you would be able to tell if you need u-bolt kit # RM-590050-00 or not.
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  • Front and Rear Anti-Sway Bar Recommendations for a 2014 Fleetwood Bounder 35K Ford V10
    The 2014 Fleetwood Bounder 35K was built on a Ford F-53 Chassis, so you could use the Roadmaster Rear Anti-Sway Bar, # RM-1139-149, that you referenced. For the front sway bar, you can use part # RM-1139-148. If you find that the factory u-bolts are not long enough when installing the rear sway bar, you can purchase the Roadmaster Extended U-Bolt Kit, # RM-590050-00.
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  • Recommended Suspension Upgrades for a 2018 Jayco Precept 36T
    The first and most important suspension upgrade you will want to make on your 2018 Jayco Precept 36T is an upgraded rear anti-sway bar, the Roadmaster Rear Anti-Sway Bar part # RM-1139-149. The Roadmaster Rear Anti-Sway Bar is going to help minimize the floating/rocking feeling while out on the highway which is typically the most common complaint with a motorhome and the weakest component from the factory. The second most important suspension upgrade you will want to make is a set of...
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  • Recommended Sway Control and Ride Suspension for 2004 Gulfstream Independence with Ford f-550 Frame
    For your 2004 Ford F-550 motorhome chassis, the Roadmaster Rear Anti-Sway Bar # RM-1139-143 is the correct fit for your motorhome if it is up to 34 feet long. It if it longer, then you will instead use # 1139-144. The rear anti-sway is the most help out of all components. You will likely need longer u-bolts # RM-590050-00 or # RM-590050-10. Next, the Front Anti-Sway Bar # RM-1139-148 is the next best step followed by the Roadmaster Reflex Steering Stabilizer with Mounting Brackets for...
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  • Anti-Sway Bars for 2019 Tiffin Allegro Open Road Motorhome
    According to what I was able to find, the 2019 Tiffin Open Road Allegro is manufactured on a Ford F-53 Chassis. The exact sway bar you need will depend on the GVWR of your motorhome, which should be mentioned on the manufacturer's ID plate along with the VIN and other important information. For 15,700 lb, 18,000 GVWR models less than 34 feet long, use # RM-1139-146 which would install in conjunction with the existing sway bar. For 22,000, 24,000 or 26,000 lbs, use # RM-1139-149. The factory...
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  • 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...
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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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  • 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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  • 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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  • 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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  • Anti-Sway Bars for a 2019 Tiffin Open Road Allegro 36 UA
    Yes, we do have anti-sway bars for your application. According to my research it looks like your 2019 Tiffin Open Road Allegro 36 UA is built on a Ford F-53 Chassis with the V10. Since this is the case you will want the Front Anti-Sway Bar # RM-1139-148 and the Rear Anti-Sway Bar # RM-1139-149 from Roadmaster. Both of which are catered to the 26K GVWR of your motorhome. For the rear bar you do need to check to ensure there is enough factory u-bolt available to accommodate the factory nut,...
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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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  • Recommended Suspension Enhancement For a 2020 Winnebago Adventurer 36Z Leaning Due to Weight
    Using the SumoSprings Maxim Custom Helper Springs # SSR-180-54-1 will greatly reduce the amount your 2020 Winnebago Adventurer 36Z leans to the passenger side. You will want to install these on both sides otherwise you will have very different steering characteristics when driving. To drastically improve the overall suspension and drivers experience you will also want to add the Front SumoSprings # SSF-170-40-2, Front Sway Bar # RM-1139-148, Rear Sway Bar # RM-1139-149 and Steering Stabilizer...
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  • What Is The Torque Specs On U-bolts #590050-00
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    We have exactly what you need for your 2016 Fleetwood Bounder 35K - the front anti-sway bar, rear anti-sway bar, rear SumoSprings and front SumoSprings. I'll list exactly what you need for your motorhome: - SumoSprings Maxim Custom Helper Springs - Rear Axle # SSR-187-54-1 - SumoSprings Rebel Custom Helper Springs - Front Axle # SSF-170-40-2 - Roadmaster Exact Center Steering Stabilizer # RM42RR - Roadmaster Front Anti-Sway Bar # RM-1139-148 - Roadmaster Rear Anti-Sway Bar # RM-1139-149 In...
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    For your 2008 Thor Hurricane 34Y with garage you can use the below anit-sway bars: Front - Roadmaster Front Anti-Sway Bar # RM-1139-148 Rear - Roadmaster Rear Anti-Sway Bar # RM-1139-149 This kit uses a flat plate that is held in place by the leaf spring U-bolts on the rear axle. Check to ensure there is enough exposed U-bolt below the nut to accommodate the factory nut and washer once the 1/2-inch thick plate is installed above them. If you do not have enough exposed U-bolt, order one...
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    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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  • Are Longer U-Bolts Needed for Anti-Sway Bar on 2019 Forest River Georgetown GT5 Motorhome
    Since the U-bolts on your 2019 Forest River Georgetown GT5 motorhome have 1-1/2" exposed thread, it is very unlikely you will need the longer 15-7/8" square U-bolts # RM-590050-00 or 20-1/4" long round U-Bolts # RM-590050-10 to install the Roadmaster Rear Anti-Sway Bar # RM-1139-149. The plate is 1/2" thick (see accopmanying photo) so you will still have an inch of exposed thread, and worst-case scenario is you can order the longer U-bolts if need be, though I am confident you will not...
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    Image 1 for
  • Availability Of Replacement U-Bolts For An Old Reese Sway Bar
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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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  • Steering Stabilizer and Anti-Sway Bar Fit for Motor Home on 2001 Ford F-53 Chassis With V10 Engine
    The correct steering stabilizer for your Class A 2001 Ford F-53 Chassis with a V10 engine is the Roadmaster Reflex Steering Stabilizer # RM-RBK22-RSSA. A steering stabilizer is a good way to enhance the ride of your motor home and improve your driving experience, though I do recommend adding a rear anti-sway bar and front anti-sway bar if you don't already have one because they are a vast improvement over the OEM bars and significantly improve your rig's handling so you can enjoy your...
    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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