bing tracking image
  1. Anti-Sway Bars
  2. Roadmaster
  3. Steering Stabilizer
  4. Mounting Hardware Included
THIS ITEM IS NOT A FIT FOR
2009 Hummer H2
Roadmaster

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

Part Number: RM33RR
In Stock
$705.00
Anti-Sway Bars
Not Confirmed to Fit

2009 Hummer H2

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
By submitting this form, you understand and agree to our Terms of Sale, Website Terms of Use and Privacy Policy.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
No more white-knuckled driving on your adventures. This gas spring steering stabilizer will help keep your rig from wandering while also giving you responsive steering. Includes custom mounting brackets. 1-800-940-8924 to order Roadmaster anti-sway bars part number RM33RR 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.
  • All Info
  • Reviews (387)
  • Q & A (0)
  • Photos

Roadmaster Anti-Sway Bars - RM33RR

Highlights

  • Custom Fit for Your Vehicle: Tuned to your suspension for better control and stability.
  • Keeps You Centered: Nitrogen-charged gas spring applies full force to stop wandering before it starts.
  • Handles Crosswinds: Stabilizes steering against gusts, rut tracking, and road edging for steadier control.
  • Less Driver Fatigue: Cuts steering corrections so long drives feel more relaxed and predictable.
  • Improves Responsiveness: Maintains a firm “on-center” feel for direct, confident steering.
  • Simplifies Setup: Installs using factory axle holes and tie-rod mount—no drilling or welding needed.
Made in USA

Features to know about

Steady Tracking on the Highway: Nitrogen-Charged Tandem Gas Spring Keeps You Centered

Nothing wears you out faster than chasing the steering wheel through crosswinds or when a semi blasts by. The Exact Center uses a nitrogen-charged tandem gas spring that applies full force the instant you need it. Instead of waiting for the wheel to drift before reacting, it actively resists wander so your steering stays tight and true. The 32"-long spring delivers responsive control up to a 22,000-lb GVWR, turning tense stretches of highway into steady, predictable driving.

Close-up view of the internal components of the Roadmaster Exact Center steering stabilizer with nitrogen-charged tandem gas spring for improved steering control.

Less Fatigue on Long Drives: Proactive Force Reduces Constant Correction

When you’re spending hours behind the wheel, the last thing you need is a steering setup that fights you. This stabilizer takes the fight out by keeping the wheel naturally centered. Because it prevents unwanted movement before it starts, you make fewer corrections and can relax your grip. The smoother, more controlled feedback means you finish the day feeling alert instead of wrung out.

Comparison chart showing how the Roadmaster Exact Center steering stabilizer prevents unwanted steering movement compared to reactive stabilizers, highlighting proactive control for RVs.

Confidence Through Wind and Ruts: Full-Time Stability for Real-World Roads

Crosswinds, rut tracking, and road edging can push a big vehicle around. The Exact Center’s gas spring adds balanced resistance both ways, keeping your line even when the pavement doesn’t cooperate. You get immediate and dramatic improvement in handling and control—less wandering, no fuzzy center, and a true on-center feel that makes your steering more like a sports car than a chore.

Quick Bolt-On Setup: Custom Brackets and Factory Mount Points

No drilling, no welding, no guesswork. The stabilizer mounts using existing factory axle bracket holes on one end and the tie-rod location on the other. Custom brackets and heavy-duty stainless hardware come in the kit so the whole assembly bolts right up with basic tools. Once installed, it just works—ready to handle every mile ahead.

Built to Last: Heavy-Duty Stainless Construction

Roadmaster didn’t skimp on strength. The stainless steel body and robust internal components hold up against the elements and high-mileage use. It’s a long-term upgrade that keeps steering performance consistent year after year.

Specs

Dimensions

  • Spring length (from center of bushing to center of bushing): 32"

Weight Capacity

  • Maximum GVWR: 22,000 lbs

Warranty

  • Limited lifetime warranty

Note

  • Important installation note: It's important that worn steering components are addressed before installing this kit.

481225A Roadmaster Exact Center Steering Stabilizer with Custom Brackets

RBK22 Roadmaster Custom Mounting Brackets for Roadmaster Steering Stabilizers

Installation Details RM33RR Installation instructionsAlternate Instructions RM33RR Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:

Ratings & Reviews

4.5

386 reviews
Review sort icon
No more white-knuckled driving on your adventures. This gas spring steering stabilizer will help keep your rig from wandering while also giving you responsive steering. Includes custom mounting brackets.

by:

Shipped fast and product was very high quality. Install was easy and the handling was definitely improved. I recommend this product.



by:

Relatively easy to install. Make sure you have a good torque wrench because you'll need to apply XXXlbs of torque to the nut that attaches it to the leaf spring bracket.



by:

easy to install ?? will add more after test drive



by:

Excellent service. William was so helpful he made sure that the exact center steering stabilizer was the correct one for my motorhome. Installation was extremely easy. I am pleased with the performance.



by:

The unit was super easy to install and worked super well..at first. Later, the rubber boot bunched up and the stabilizer didn't work nearly as well. I kind of wished I would have purchased a different type.

Brooke M. profile picture
Etrailer Expert

Brooke M.

11/11/2023

After seeing your comment I reached out to Roadmaster. They said earlier versions of this part didn't have slits that they now come with. They suggested drilling holes to the ribs on each side and then re-adjusting the boot. I hope this fixes the issue!



by:

Excellent and friendly service will recommend it to all



by:

Did not help the steering at all



by:

Had this installed along with front & rear sway bars. The rig doesn’t wear me out anymore, I can drive all day long. Just the result I was hoping for.



by:

Makes my steering harder to turn on curves and makes you overcompensate when a truck passes. Wish I could return it, however the return policy states only uninstalled items may be returned. Not sure how you would know if the product worked unless you installed it. Wish I had ordered it on Amazon, then I could return this expensive "stabilizer". Not sure how it got so many good reviews.



by:

I experienced more steering issues with this on.
I had it inspected and reinstalled by three separate installation sites.
I now have it sitting in a cupboard. Waste of money. Major regret

Katrina D. profile picture

Katrina D.

1/19/2024

Can you elaborate on what the steering issues were? Was it more stiff or what was it causing to happen?



by:

Part arrived as promised. It made a big difference to the stability of my vehicle. Very glad I bought it.



by:

Easy. To order and fast deliver. Good online instructions for the DIY



by:

This bar made driving my RV much more enjoyable,the return to center very helpful



by:

We had to have it removed. It made the motorhome almost impossible to drive. You constantly had to move the steering wheel back and forth to keep it straight on the road.



by:

Super easy to install. I didn’t need an impact driver. I just used a breaker bar and a couple of drops of oil from the dipstick on the u bolt nuts. Drives without needing slots of steering corrections.



by:

Install was easy and product works great



by:

I have not installed it but the quality of the parts look great, I expect the functionality of it will be the same. Very impressed with the speed of delivery and follow ups from your rep Amy J.



by:

This is the best item I have ever bought. Totally changed the motorhome steering. Now it’s very easy to drive and steer. Can drive using one hand used to. Love the steering stabilizer.



by:

Get one, you won't be sorry. I traveled 7250 miles around the US this past summer and the stabilizer performed perfectly keeping the RV from drifting out of lane. This makes driving so much easier. Even in wind gusts the stabilizer was a tremendous aid controlling the RV from lurching left or right. I believe its a good investment.

Charles profile picture

Charles

1/3/2025

Its really held up well! I travelled over 7000 miles touring our great United States last summer and keeping the vehicle straight was not a concern. Im really pleased with the stabilizer. It was a good investment!



by:

Fast shipping quality parts

Frank profile picture

Frank

6/14/2025

Works absolutely perfect, cant understand why RV manufacturers dont install from the factory.



by:

Very high quality, great video showing installation process.After installing the adjustment procedure was easy to follow. Handling was greatly improved. Would recommend for any Class A rv.



by:

It was an easy install...by me,(above average mechanical skill).
You don't need to be a "mechanic" to install yourself, again good directions and web page videos to help.
The unit itself does exactly what is advertised, makes steering a little more "stiff" and centers the steering wheel with little effort.
Great product.



by:

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



by:

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



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.

Ronald profile picture

Ronald

11/1/2025

Still havent used it. I just got the motorhome back with a new steering box. It took over a year to find someone that would check out the steering box. The steering box and kingpins were not set up properly at the factory and had to be replaced at 13,800 miles. Im learning what Fix Or Repair Daily means.


25
25

See what our Experts say about this Roadmaster Anti-Sway Bars

  • Recommended Anti-Sway Bar, Steering Stabilizer, and Air Bags for 2018 Thor ACE 30.3
    You're already on the right track with everything you looked at. Your 2018 Thor ACE 30.3 has a GVWR of 18,000 lbs so I recommend the following: -Roadmaster Exact Center Steering Stabilizer w/ Custom Brackets for Class A Motorhomes # RM33RR -Roadmaster Rear Anti-Sway Bar - 1-1/2" Diameter # RM-1139-146 -Roadmaster Front Anti-Sway Bar - 1-3/4" Diameter # RM-1139-148 If you want to add air bags you can using the # AL88240 for the front and # AL57344 for the rear. However, I recommend using...
    view full answer...
  • Choosing Between Safe-T-Plus and Roadmaster Exact Center for 2016 Forest River Georgetown 351DS
    Hey Gary, welcome back! The Safe-T-Plus # ST88MR is spring-based and reactive, so it corrects steering after you start to drift. It’s simple, solid, and proven. The steering will be firmer with this system installed, so if that is what you prefer I would go with the Safe-T-Plus. The # RM33RR is proactive with constant centering force, so it’s always helping keep you straight. This typically means less steering fatigue on long drives. The bellows you're referring to on the # RM33RR is...
    view full answer...
  • How to Know if My Steering Stabilizer is Worn on my 2018 Thor Hurricane 18,000 GVWR
    Hey Freddie, A worn steering stabilizer definitely will contribute to the wandering you're feeling, but before replacing it, I'd want to make sure it's actually the culprit. As for lifespan, steering stabilizers don't have a set replacement interval and we've seen many last 50,000–100,000+ miles. They typically wear gradually rather than failing suddenly, with the most common signs being fluid leakage, reduced resistance, or a weaker centering effect over time. A quick way to check your...
    view full answer...
  • Is Roadmaster Rear Anti-Sway Bar Compatible With Air Bags on 2013 Winnebago Vista 27N
    Hey Kurt! Yes, the Roadmaster Rear Anti-Sway Bar # RM-1139-146 can be used with air bags on your 2013 Winnebago Vista 27N. The two will actually work well together and the anti-sway bar will further improve your ride and reduce fatigue. Any big trips coming up this fall with your Vista?
    view full answer...
  • Is There Roadmaster Steering Stabilizer that Fits 2015 Forest River FR3 Motorhome
    Hey Peter, does your FR3 have the V10 engine or a different size? We only have the Exact Center stabilizers for your motorhome at this time as Roadmaster has begun phasing out the Reflex and replacing it with the Exact Center which is intended to be the upgraded and better version. Basically we only have the Exact Center for your motorhome so hopefully there is a way to make it work. What was the fit issue?
    view full answer...
  • Anti-Sway Bars For 2018 Jayco Alante 31V
    Hello David, thanks for reaching out. In these cases generally what I advise is try the sway bars first, then add the steering stabilizer if needed. You can do all 3 at once but typically the sway bars would give you the most noticeable results. A lot of folks are happy with just the sway bars, but if you want to improve handling and tracking even more the stabilizer can help. Here is what I recommend for your 2018 Jayco Alante 31V, in order of what I recommend installing first: - Roadmaster...
    view full answer...
  • Is There A Way To Fine Tune A Roadmaster Exact Center Steering Stabilizer?
    Hi Scott! There is a way to fine tune your Roadmaster Exact Center Steering Stabilizer # RM33RR. I included a link that you will want to scroll down to step 9 to see what you can do, but basically there are jam nuts you can adjust that can do much smaller increments than just sliding the bracket around. What did you install this on?
    view full answer...
  • Recommended Suspension Enhancement and Steering Stabilizer for 2018 Jayco Alante 26X
    To smooth out the ride on your 2018 Jayco Alante 26X I recommend the SumoSprings Maxim Custom Helper Springs # SSR-184-40-1, which are a fit for your Jayco that is built on a Ford F-53 chassis. The SumoSprings will compress vertically which will help absorb the bumps; they are also going to help reduce the amount of sway and body roll of your RV to further enhance the driving experience of your Jayco. A steering stabilizer will also let you enjoy your travels more by helping you stay...
    view full answer...
  • Troubleshooting Poor Steering After Installing A Roadmaster Exact Center
    Hi Douglas, It's totally possible that the Exact Center Steering Stabilizer # RM33RR you have on your motorhome wasn't installed correctly and is forcing the wheel to turn. The first step before installing it is to make sure your motorhome's alignment is correct. We usually set the wheel straight and place tape at the top and straight behind it to the dash and then let the motorhome roll forward on level ground to see if the wheel starts to lean one way to check the alignment. From there...
    view full answer...
  • Recommended Suspension Upgrades For A 2009 Fleetwood Southwind Ford F53 Chassis
    Thanks for reaching out, Bruce. A steering stabilizer, as well as front and rear sway bars will be the most worthwhile suspension upgrades for your 2009 Fleetwood Southwind. The steering stabilizer will help to keep the RV straight and true with less white-knuckle driving on the highway. The sway bars will also help with overall stability while reducing sway and body roll. Depending on what kind of "symptoms" you are experiencing, I usually recommend starting with the one upgrade, then...
    view full answer...
  • Recommended Suspension Enhancement For A 2010 Four Winds Hurricane 31D To Combat Sway
    Hey William, A steering stabilizer and front and rear anti-sway bars can make a world of difference in your motorhome's handling. The anti-For your 2010 Four Winds Hurricane 31D you'll need the following: Anti-Sway Bar Front # RM-1139-148 (1-3/4" diameter) Rear # RM-1139-146 (1-1/2" diameter) Doublecheck the diameter of the factory anti-sway bars on your motorhome. The thicker the bar the better it will perform. Steering Stabilizer Roadmaster Exact Center Steering Stabilizer w/ Custom...
    view full answer...
  • Recommended Exact Center Steering Stabilizer for a 2006 Winnebago Sightseer Class A Motorhome
    Hey Laura. It looks like you only bought the Custom Mounting Brackets for Roadmaster Reflex Steering Stabilizer item # RM-RBK8. This is just the brackets for the Roadmaster Exact Center Steering Stabilizer w/ Custom Brackets for Class A Motorhomes item # RM33RR. Both of these parts are confirmed to fit the 2006 Winnebago Sightseer Class A Motorhome built on the Ford F53 Chassis. If you also need the actual steering stabilizer it is the Roadmaster Exact Center Steering Stabilizer item #...
    view full answer...
  • Steering Stabilizer Recommendation for 2019 Bay Star Newmar
    Hey Jesus, for your 2019 Bay Star Newmar motorhome that is built on a Ford F-53 chassis the steering stabilizer you'd want is the part # RM33RR. This stabilizer is going to do a really good job of helping keep your rig centered so you can have a more controlled, enjoyable driving experience. How do you like the handling currently?
    view full answer...
  • How to Stop 2018 Forest River FR3 25DS From Wobbling On Road
    Hey Brent! The best thing you can add to your 2018 Forest River FR3 25DS to get it under control is a front and rear anti-sway bar. For the front you need the Roadmaster Front Anti-Sway Bar - 1-3/4" Diameter # RM-1139-148 and then for the rear # RM-1139-146. After that, the best option is the Roadmaster Exact Center Steering Stabilizer # RM33RR you were looking at. All three together is optimal but if you're on a budget I would start with the anti-sway bars and then add the steering...
    view full answer...
  • Availability of Roadmaster Steering Stabilizer RM-RBK22-RSSA
    Hey Danny, sorry for the difficulty finding the part RM-RBK22-RSSA it does look like it was discontinued but the good news is they upgraded their stabilizers to the Exact Center line which the correct fit for your RV would be the # RM33RR.
    view full answer...
  • Installation and Adjustment of Roadmaster Exact Center Steering Stabilizer
    The first thing you need to do when installing the # RM33RR, which is the # RM36RR with the brackets, is to center the steering wheel and lock it into place. If your tires weren't straight ahead when you installed this it is going to pull. Assuming you did that, the two steps listed below are specific to the Exact Center. This includes how to make adjustments. 8. For Exact Center installations only: First, ensure that the suspension is loaded. Then, tighten the jamb nuts against the ring...
    view full answer...
  • Best Way to Reduce Sway in 2011 Forest River Georgetown 280DS on Ford F-53 Chassis
    While you can certainly add the SumoSprings Maxim Custom Helper Springs - Rear Axle # SSR-187-54-1 and SumoSprings Rebel Custom Helper Springs - 2 Piece - Front Axle # SSF-170-40-2 to your 2011 Forest River Georgetown 280DS built on a Ford F-53 chassis, by far the best way to enhance the ride of your motorhome is to add an aftermarket rear anti-sway bar, followed by a front anti-sway bar and steering stabilizer, in that order. The reason these are the best options is because they are...
    view full answer...
    Image 1 for
  • Recommended Steering Stabilizer For A 2016 Thor Challenger V-10 Class A Motorhome
    For the F-53 Chassis on your 2016 Thor Challenger V-10 Class A Motorhome you'll be needing one of following two kits depending on the GVWR of your specific model: For a GVWR under 22,000lbs you'll need the Roadmaster Exact Center Steering Stabilizer w/ Custom Brackets for Class A Motorhomes # RM33RR For a GVWR over 22,000lbs you'll need the Roadmaster Exact Center Steering Stabilizer w/ Custom Brackets for Class A Motorhomes # RM42RR. The RSSA has been discontinued and replaced by the...
    view full answer...
  • What Steering Stabilizer Fits 2017 Forest River FR3 30DS With 18,000 GVWR?
    The correct fit for your 2017 Forest River FR3 30DS, which has an 18,000 GVWR and is a Class A RV with a V10 engine, is the Roadmaster Exact Center Steering Stabilizer w/ Custom Brackets # RM33RR. This steering stabilizer will work to keep you centered when veering occurs and installs without any type of drilling needed.
    view full answer...
    Image 1 for
  • Best Suspension and Steering Upgrades For 2020 Thor Hurricane 29M Motorhome
    To improve the suspension and steering on your 2020 Thor Hurricane 29M you can add springs in the front and back along with a steering stabilizer and anti-sway bars in the front and back. Of course, while that will get you the ultimate riding experience, you may not want to do the whole thing at once, so to start I recommend adding springs to the rear and a sway bar to the front. For the rear, I highly recommend the SumoSprings Maxim Custom Helper Springs, part # SSR-184-40-1. These are...
    view full answer...
  • Recommended Steering Stabilizer For A 2014 Thor ACE Motorhome
    Without knowing the exact model of your 2014 Thor ACE Motorhome I can only speculate on the correct fitting steering stabilizer. Most likely your motorhome is built on a Ford F-53 chassis like most are, but I'd hate to have you purchase one and it be the wrong fit so you'll want to verify the chassis prior to purchase. If you do have a Ford F-53 Chassis then I have the following recommendations based on the GVWR of the motorhome: For a GVWR over 22,000lbs you'll need the Roadmaster Exact...
    view full answer...
  • Recommended Steering Stabilizer For A 2016 Thor Motor Coach A.C.E 29.2 Class A Motorhome
    For a 2016 Thor ACE Motorhome 29.2 with a Ford F53 chassis and V10 engine the correct steering stabilizer would be the Roadmaster Exact Center Steering Stabilizer w/ Custom Brackets for Class A Motorhomes # RM33RR. We do not currently offer the Safe T Plus brand so I don't have any fitment information for their products. I've attached one of my installation videos below for this stabilizer where I'll go over the installation process as well as the benefits you can see from installing one.
    view full answer...
  • Anti-Sway Bar Fit for 2015 Thor A.C.E. 27.1 Motorhome on Ford F-53 Chassis
    The best way to enhance the ride of your 2015 Thor ACE 27.1 which was built on a Ford F-53 chassis is to add a rear anti-sway bar because their placement at the rear of the vehicle allows for the greatest improvement in handling and stability for the vehicle. Air bags offer some support, but won't be as effective at overall handing improvements as a rear anti-sway bar. After that you can further improve the ride by adding a front anti-sway bar and steering stabilizer; the combination...
    view full answer...
  • Best Way to Reduce Sway & Body Roll on 2019 Winnebago Intent 29L on Ford F-53 Chassis
    You are certainly not alone in looking for a way to reduce the amount of sway and body roll when driving a motor home but there are great solutions to remedy those white-knuckle moments when going side-by-side with a semi or meeting crosswinds. The best way to reduce the sway and enhance the ride of your 2019 Winnebago Intent 29L built on a Ford F-53 chassis is to add a rear anti-sway bar, followed by a front anti-sway bar, and after that a steering stabilizer. For your motor home the...
    view full answer...


< Previous
123. . .4



Do you have a question about this Anti-Sway Bar?


Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Jonathan Y
Video Edited:
Jonathan Y
Employee John S
Video Edited:
John S
Employee Wilson B
Updated by:
Wilson B
Employee Amber S
Video by:
Amber S
Employee Thomas T
Video by:
Thomas T
Employee Charles A
Video by:
Charles A
Employee Ethan H
Video by:
Ethan H
Employee Jacob H
Test Fit:
Jacob H
Employee Kevin C
Test Fit:
Kevin C
Employee Michael H
Test Fit:
Michael H
Employee John A
Test Fit:
John A
Employee Jesse B
Test Fit:
Jesse B
Employee Andy C
Installed by:
Andy C
Employee Sabrina W
Written by:
Sabrina W

At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.