Extended Round U-Bolt Kit for Roadmaster Anti-Sway Bars

Extended Round U-Bolt Kit for Roadmaster Anti-Sway Bars

Item # RM-590050-10

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Roadmaster Accessories and Parts - RM-590050-10
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  • Anti-Sway Bars
  • Anti-Sway Bar Parts
  • U-Bolts
  • Roadmaster
Use these 20-1/4" long U-bolts to install your Roadmaster anti-sway bar. The extended-length bolts are designed to replace your vehicle's round OEM U-bolts if they are too short. Call 800-298-8924 to order Roadmaster accessories and parts part number RM-590050-10 or order online at etrailer.com. Free expert support on all Roadmaster products. Guaranteed Lowest Price and Fastest Shipping for Extended Round U-Bolt Kit for Roadmaster Anti-Sway Bars. Accessories and Parts reviews from real customers.


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  • Reviews (3)
  • Q & A (8)
  • Videos (1)
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Roadmaster Accessories and Parts - RM-590050-10

Use these 20-1/4" long U-bolts to install your Roadmaster anti-sway bar. The extended-length bolts are designed to replace your vehicle's round OEM U-bolts if they are too short.


Features:

  • U-bolts replace round 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
  • Dimensions: 20-1/4" long x 4-1/16" wide x 7/8" diameter
  • 4 Round U-bolts with nuts and washers included
  • Made in the USA


590050-10 Roadmaster Anti-Sway Bar Extra Long Round U-Bolt Kit







Video of Extended Round U-Bolt Kit for Roadmaster Anti-Sway Bars


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-590050-10 Review

Speaker 1: Today we're going to take a look at the extended round U-bolt kit for the Roadmaster anti-sway bars.Now, these 20 and a quarter inch long U-bolts are used to install your Roadmaster anti-sway bars to your vehicle.Now, the Roadmaster anti-sway bar's part number RM-1139-143, RM-1139-144, and RM-1139-149 are all used in conjunction with your vehicle's factory bar and it mounts using the factory U-bolts but some of the vehicles that those sway bars are used on may require these extended U-bolts.Basically, these extended length U-bolts are designed to replace your vehicle's round factory U-bolts if they're too sharp. The nuts and washers are included. They are made in the USA. The usable length on this, which is going to be on the inside from the very end here up to the top here. And I got to see inside measurement usable length is 20 and quarter inches. The thread length, in other words it's threaded from this end right up to here, so the length on the thread is going to be five inches.

And then the inside width, which is measured inside to inside is right at four and a quarter inches.


Customer Reviews

Extended Round U-Bolt Kit for Roadmaster Anti-Sway Bars - RM-590050-10

Average Customer Rating:  5.0 out of 5 stars   (3 Customer Reviews)

Use these 20-1/4" long U-bolts to install your Roadmaster anti-sway bar. The extended-length bolts are designed to replace your vehicle's round OEM U-bolts if they are too short.

- RM-590050-10
by:

easy to in stall on my RV for the roadmaster sway bar.... Cathy T at trailer is the best on line Rep there is at E trailer .... she helped me get this product and it fit my rig ... I have a 2018 holiday rambler and i added an additional sway bar on the rear ... had to have this product to do it John A 469897



- RM-590050-10
by:

Product was exactly what I needed. Came on time 578291



- RM-590050-10
by:

Worked OK, I guess. Installer didn't say he had a problem installing them. 572637


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Ask the Experts about this Roadmaster Accessories and Parts

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  • Is the Extended Round U-Bolt Kit Needed when Installing the Rear Anti-Sway Bar on a 2015 Ford F53
  • When installing the Roadmaster Front Anti-Sway Bar for Motor Homes # RM-1139-148 and the Roadmaster Rear Anti-Sway Bar for Motor Homes # RM-1139-149 on your 2015 Newmar Canyon Star Toy Hauler there are a few things you will want to look for. When I spoke with my contact at Roadmaster he said that you will want to make sure that you have at least 3 threads showing on the U-bolts after installing the rear anti-sway bar. Since you only have half an inch that you can see you will want to...
    view full answer...

  • 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-1139-140 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...
    view full answer...

  • 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...
    view full answer...

  • 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...
    view full answer...

  • Tools Needed to Install Roadmaster Rear Anti-Sway Bar # RM-1139-149
  • The installation manual for the Roadmaster Rear Anti-Sway Bar # RM-1139-149 along with the Extended U-Bolt Kit # RM-590050-10 simply calls for a torque wrench and "general hand tools". When we installed this kit on the 2017 Ford F-53 we used a 13/16 inch socket, a 5/16 inch socket, a 15/16 inch wrench/socket, an 18mm wrench/socket, and a 16mm socket. I have attached this installation video below that you can also check out.
    view full answer...

  • Installing Extended U-bolts for Roadmaster Rear Anti-Sway Bar 1139-143 on 2004 F-53 Chassis
  • The Roadmaster Rear Anti-Sway Bar for Motorhomes # RM-1139-143 can use your factory u-bolts if they are long enough. If they are not, then Roadmaster recommends using the 7/8 inch diameter u-bolts that are longer (most likely the larger diameter due to length needed to ensure strength). I've attached a couple photos from the installation instructions to assist with the size and torque. When torque specs are so large either a large special torque wrench is required or installers are...
    view full answer...

  • 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...
    view full answer...

  • 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.
    view full answer...


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Info for this part was:

Expert Research:
Michael H
Installed by:
Jeff D
Written by:
Sarah W

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