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  1. Anti-Sway Bars
  2. Roadmaster
  3. Steering Stabilizer
  4. Mounting Hardware Included
THIS ITEM IS NOT A FIT FOR
2000 Ford Van
Roadmaster

Roadmaster Exact Center Steering Stabilizer w/ Custom Brackets for Class A Motorhomes

Part Number: RM85RR
In Stock
$705.00
Anti-Sway Bars
Not Confirmed to Fit

2000 Ford Van

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This gas spring steering stabilizer will give your motorhome a responsive steering experience that keeps your rig from wandering. Custom mounting brackets included. 1-800-940-8924 to order Roadmaster anti-sway bars part number RM85RR or order online at etrailer.com. Free expert support on all Roadmaster products. Great prices and Fastest Shipping for Roadmaster Exact Center Steering Stabilizer w/ Custom Brackets for Class A Motorhomes. Anti-Sway Bars reviews from real customers.
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  • Reviews (387)
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  • Videos (1)
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Roadmaster Anti-Sway Bars - RM85RR

Highlights

  • Custom Fit for Your Vehicle: Tuned to your suspension for better control and stability.
  • Keeps Steering Centered: Nitrogen-charged gas spring prevents wandering for steady control.
  • Handles Crosswinds: Maintains control during gusts, rut tracking, and road edging.
  • Reduces Driver Fatigue: Cuts steering corrections so long drives feel smoother and easier.
  • Prevents Sway Early: Proactive design stops movement before it starts for better stability.
  • Simple Installation: Uses factory axle and tie-rod holes with included custom brackets.
Made in USA

Features to know about

Better Control in Crosswinds: Nitrogen-Charged Gas Spring Stabilizer

When strong gusts or passing semis push you around, this steering stabilizer keeps your rig centered and steady. The nitrogen-charged tandem gas spring applies full force right when you need it, preventing the wandering and correction lag that make driving in wind stressful. It’s always working to hold a straight line, so your steering stays firm and predictable even on uneven pavement or in ruts.

Internal view of the Roadmaster Exact Center steering stabilizer showing the nitrogen-charged tandem gas spring mechanism for improved motorhome steering control.

Less Driver Fatigue: Proactive Steering that Stays Centered

Long drives feel easier when you don’t have to fight the wheel. Instead of reacting after motion starts, the Exact Center keeps tension on the steering so the vehicle naturally tracks straight. That means fewer corrections through crosswinds, grooves, or rolling hills—just stable, centered steering that takes the strain out of long days behind the wheel.

Comparison chart showing how the Roadmaster Exact Center steering stabilizer proactively prevents motorhome wandering compared to other reactive stabilizers.

Built for Heavy Rigs: Rated for 22,000 lbs GVWR and Above

This setup is built for big loads and serious weight. With a rating of 22,000 lbs and above, the heavy-duty stainless steel construction keeps things tight and controlled when it matters most. The solid build resists flex and wear, providing consistent steering support mile after mile.

Simple Bolt-On Install: Custom Brackets, No Drilling Needed

There’s no frame drilling or welding required here. The stabilizer uses factory axle bracket holes on one end and mounts at the tie-rod location on the other. Custom brackets are included, so you can bolt it on with the hardware in hand and get back on the road faster without modifying your setup.

Specs

Weight and Capacity

  • GVWR: 22,000 lbs and above

Warranty

  • Limited lifetime warranty

Note

  • Installation note: It's important that worn steering components are addressed before installing this kit.
  • Application guidance: If you have a lighter chassis but feel you're pushing the weight limit for a lower-rated steering stabilizer, this heavy-duty Exact Center will work for lighter applications.

481300A Roadmaster Exact Center Steering Stabilizer

RBK7 Custom Mounting Brackets for Roadmaster Steering Stabilizer

Installation Details RM85RR Installation instructions

This Product Fits The Following Vehicles




Video of Roadmaster Exact Center Steering Stabilizer w/ Custom Brackets for Class A Motorhomes
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of Roadmaster Steering Stabilizer with Custom Mounting Brackets - RM85RR

Hello everybody, this is Jeff at etrailer.com. Today, we're gonna take a look at the Roadmaster Exact Center Steering Stabilizer with the custom mounting brackets for motorhomes. Now, this is a custom fit part, it is designed to fit the 1993 to 2007 Spartan Mountain Master motorhomes with the non-independent front suspension, also works on the 1991 to 2007 Spartan N-Line Class A motorhomes, and also, the 1999 to 2006 Spartan WC-Series Class A motorhomes, and on a custom fit part like this, I do like to recommend for you to go to our website, use the fit guide, put in your year and model vehicle, it'll show you if this will work for your application. Now, this Exact Center stabilizer will work better than the other stabilizers, because it's always working to prevent unwanted movement. The other stabilizers will react to the movement, the Exact Center stabilizer works to prevent that movement. Basically, those other steering stabilizers will slowly activate to control the steering only after your motorhome has already gone to wander or make a turn, and those other steering stabilizers are reactive, which means they fight against unwanted movement, but only after that movement's already started.

They will get you RV back in line and absorb shock while doing so, but they still allow some play in the steering, because of the soft centers, which can cause the steering to feel spongy. Now, this Roadmaster Exact Center Stabilizer right here, it is proactive, it basically uses nitrogen-charged tandem gas springs on the inside that'll apply full force right when you need it, and this helps prevent the unwanted wandering and the white knuckling that you typically get when you're driving your RV. This stabilizer will prevent your motorhome from wandering and improve steering, keeps your RV centered, taking the fight out of your steering, and it'll help maintain control of your RV during crosswinds, rut tracking, and even road edging. Now, it does come with the custom fit brackets. They are bolt-on, there's no drilling or welding required for installation.

Basically, they'll use the factory axle bracket holes on one end, the tie rod location on the other end, comes with the mounting hardware to install this, comes with a nice set of instructions that'll describe how it all goes together. Now, the stabilizer itself you can see is a heavy-duty stainless steel construction, it is made in the USA. And this is designed to work with motorhomes that have a gross vehicle weight rating of 22,000 pounds and above. One last note is this is also designed to work with a suspension system that is in good working order. But that should do it for the review on this Roadmaster Exact Center Steering Stabilizer with the custom mounting brackets for motorhomes..

Ratings & Reviews

4.5

387 reviews
Review sort icon
This gas spring steering stabilizer will give your motorhome a responsive steering experience that keeps your rig from wandering. Custom mounting brackets included.

by:

Very surprised at how much it help improve the swaying when driving in heavy winds and with large Vehicles passing you. Would recommend anyone



by:

Hey RV'rs.... I upgraded from the Roadmaster stabilizer and the difference was phenomenal... Prince Edward county to Key West with minimal steering correcting



by:

This is one of the greatest additions to a Motorhome. I had purchased a new motorhome the day before a trip so I hadn't had time to install the stabilizer. After a 1000 mile trip fighting the wheel I had a chance to install it before the return trip. It was easy to install with the tool I had brought while at the campground and made the trip back much easier.



by:

Easy install and it makes an amazing difference. etrailer has great video tutorial on this. I installed on a Newmar Baystar that was difficult to drive, and made a night and day difference. Took maybe 4 hours including test drives. Be sure to drive before and find the center point on the steering wheel. I hit it the first time so no adjustment needed afterwards. But if needed, the fine adjustments are easy on this compared to the SafeTPlus in was considering.



by:

Fast reliable company



by:

Do not like how it handles with the center steer



by:

Speaking for myself, and in all honesty from my opinion and with experience using Exact Center Steering Stabilizer. Driving with the ECSS, I’ve found it will be useful on my Jeep being towed. I have several thousand miles on my Jeep, and found city driving okay, but steering you must keep your hands on the wheel. This also goes even more so on the highway. Just returned from a long trip out west to Yellowstone NP, towing a very small camper, and it was very difficult at times when driving only 65-70 mph, with special focus when on the highway when the highway makes direction turns, and really white knuckle both hands on wheel when the road isn’t smooth. As it turns out, on July 2, 2025, I removed the ECSS, and replaced with a normal steering stabilizer, and realize it’s much better, both city and highway driving. I also realize I shot over $400 on something I believed would work better, and I was wrong. The ECSS, may be good when your vehicle is towed, maybe even better on a smooth race track, but on my Jeep, it’s actually unsafe in my opinion and from my experience. I’m thinking more testing is needed, along with additional engineering with adjustments before I would spend that kind of money and knowing it will work first before wasting my money again. Long story short, I had focus on my driving the entire 4000 miles practically with white knuckles way too much, and because of this I missed most of the scenery with is the first time almost thats ever happened. Only bad weather did that before, and a damaged tie rod. I would not recommend the product to anyone, with the exceptions mentioned above. It’s not worth the amount I had to pay, and a mistake buying it. Hopefully you’re honest enough to accept my honesty and truth as I have experienced.
Regards,
Steve



by:

This it the second Roadmaster stabilizer I have purchased from Etrailer. Other was for our older 2011 motorhome and after having it I did not want to drive without 1. This is different than prior unit- big factor is so much lighter and easy to adjust, so far working perfectly…



by:

I stopped short of 5 stars because the instructions could be a lot clearer.



by:

Easy to install if you have the right tools, 3/4" torque wrench etc. Seems to be doing the job on smooth roads, our roads are terribly rutted and lots of frost heaves. Did not have to adjust after install.



by:

I installed the exact center myself. It took me about an hour due to a couple rusty bolts. Test Robin on some side roads and the main road today and I love it. Keeps me on the lane. I don’t have to play the wheel back-and-forth constantly. It doesn’t pop back to center as quuck as I thought it would, but maybe I just gotta get used to it. Definitely an improvement for a long trip.



by:

The motorhome drives so much easier now. I would recommend this if your on the fence.



by:

This has improved the steering significantly for our 2021 Jayco Redhawk 25R! It's almost incredible how much better it is. Can now hold the steering with one hand and does not pull in one direction. Huge improvement!



by:

Supper easy install takes about 1 1/2 hours and most definitely made a difference in the steering input and holding the road is definitely improved.



by:

I will have to wait until next year to install the stabilizer. I had to have the kingpins replaced in the Ford front end at 13,500 miles because parts were left out at the factory. We were not able to use the motorhome much this year.



by:

Made a world of difference. Installed on a Class C RV and was a marked improvement over the anemic OEM “steering stabilizer.” Very little adjustment required.



by:

Super easy install on a 2019 Leprechaun 319MB ,Class C RV. Hardest part was taking off the old hardware. Followed the instructions and test drove at 60mph and it drove totally straight and did not have to make any micro adjustments. A very well made product.



by:

Best investment I have made on this Motorhome. So much easier to drive and keep in it's lane.



by:

I had the road master exact center steering stabilizer installed on my RV and tried it out and it was perfect driving and maintaining position on the road way with out drifting. Although my tow vehicle was not connected I thought it felt good without out it a believe it will be fine.



by:

We installed the Roadmaster steering stabilizer on our 2018 Thor Chateau 24F motorhome. The drifting issue we'd experienced was significantly improved making driving easier and less stressful.



by:

Great product! My installer Martins Auto Tech did a fantastic job!!! Jeff Martin the owner took the extra time to make sure everything was aligned correctly and took the time to explain why he liked the product we chose from etrailer! If i ever needed or will need any work done to my RV. I would use etrailer and Jeff Martins Auto Tech in Hollywood Maryland! Btw your source page led us to Martins Auto Tech with great reviews! Thank you again!



by:

This one of the best if not the best exact center steering stabilizer on the market. Steering my 38 foot class A gas motorhome is simply a breeze. I use to fight my steering wheel to keep my motorhome straight on every type of road. I use to brace and prepare to input multiple steering corrections whenever a Semi truck was about to pass me. With my exact center steering stabilizer installed plus the addition of air bags (front and rear) driving my motorhome is now as easy as driving my F-150 super duty. The exact center steering stabilizer alone improved all of the white knuckle constant steering adjustments i was experiencing. The air bags prevent the side to side movements from cross winds and when a Semi truck passes my motorhome. The vast improvement is the same with or without the toad. This was by far the most cost effective, easily installed, and immediate improvement I have made to my 2015 Coachmen Encounter 37LS Motorhome.



by:

First road trip with our new Integra Odyssey from New York to Key West. It was a nightmare driving this thing down south! Ordered this Roadmaster and had it shipped to my friend's house in Florida. We installed it in about an hour and it is a night and day difference. Sway is almost completely gone and you can let go of the wheel and it stays centered. No more white knuckle driving!



by:

Item arrived quickly the video on the site actually helped with the installation and it was very simple, installation is on a 2023 Nexus Wraith 34w on the international MV 670 chassis



by:

The Exact Center Stabilizer itself is very good. The bracket that was sent only worked on one side of vehicle. Instruction say it is universal for either side mounting. That is incorrect for the kit I received. The stabilizer itself would have fit better on my 2022 F53 if it were about 2 inches longer.


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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Wilson B
Updated by:
Wilson B
Employee Sabrina W
Written by:
Sabrina W

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