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Sharp turns and uneven pavement can make a heavy vehicle feel unstable. This 1-5/8" diameter front anti-sway bar ties the front axle to the chassis to balance weight transfer and keep the body level through corners. It minimizes side-to-side movement so you can take quick maneuvers with confidence and stay in control even when the road isn’t perfect.
Crosswinds, passing trucks, and shifting weight can make highway driving a chore. By using the front axle as a brace for the frame, this bar cuts out sway that forces constant steering corrections. The result is a steadier, more predictable ride that keeps the wheel centered and helps you stay relaxed mile after mile.
The bar is built from thick 4140 chromoly steel, a chromium-molybdenum alloy that’s much harder and stronger than standard 1020 steel. That extra stiffness increases roll resistance by nearly 30 percent compared to typical setups. It’s a serious upgrade in strength that resists twist and flex for long-term performance.
Instead of soft rubber, the system uses polyurethane bushings and grommets that stand up to oil, gasoline, and ozone. They don’t squish out or wear down fast, so support stays tight and consistent. The kit comes with heavy-gauge mounting hardware, detailed instructions, and bushing lubricant, all designed for a no-drill, bolt-on fit that’s ready to go with basic tools.
This sway bar is engineered to avoid interference with most popular aftermarket parts, so it pairs well with rear anti-sway bars, airbags, or helper springs. Add it as part of a balanced suspension system for even more stability when hauling or towing.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi everybody, Andy here with etrailer.com, and today we're gonna take a look at this Roadmaster Front Anti-Sway Bar. Now this is a custom fit part that is designed to fit your 2018 to 2022 RAM 4500 and 5500, and this anti-sway bar does for side to side movement what a good pair of shocks does for up and down motion. You will notice after you install this, a marked improvement in your vehicle stability as the bar works to balance weight transfer and reduce body roll. This is designed to fit your RAM and work in conjunction with its suspension system, and it acts as a link between your RAM's frame and its front axle, using the axle as a brace to more effectively balance the shifting weight of your RAM as you maneuver it. You are going to be able to execute turns and quick maneuvers with confidence. This is going to allow for a level ride even on irregular surfaces and will reduce driver fatigue by minimizing the effort required to keep your RAM in line.
It will diminish the effects of crosswinds, passing motorists, and even shifting cargo. This is also engineered to avoid interference with most popular aftermarket add-ons and accessories, so that is nice. Now this is made with polyurethane bushings instead of the standard rubber variety for a longer lasting system. If you don't happen to know, polyurethane is durable and resistant to damage caused by oil, gasoline, and ozone, and less wear means less give in the system and better support. This bar is made here in the USA of thick 4140 Chromoly Steel, giving you that superior strength.
It also includes heavy gauge mounting hardware and easy to follow instructions are also included with this and even a little container of bushing lubricant. Now this is going to work with a rear anti-sway bar as well, giving you that absolute stability. And if you wanna see if your vehicle can also have a rear anti-sway bar installed on it, take advantage of our vehicle fit guide here at etrailer.com. Insert the year, make, and model of your vehicle and our fit guide will let you know if we have a rear anti-sway bar that will work for you. The diameter of the bar itself is one and 5/8 inches, and this does have a limited lifetime warranty from Roadmaster.
Well, that's going to conclude our brief look today. I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me.
Ratings & Reviews
Fred
8/15/2026
Excellent it works great
Jerred H.
8/16/2026
Gwendolyn Y.
4/8/2025
No more white knuckling! That's awesome to hear, Kris. I'm glad that this bar helped so much so you can have a more relaxed drive :)
Kris
3/17/2026
I have taken a few trips with the Clatter Cabin now. It’s been enjoyable to drive. Since then I have replaced the exhaust from the engine back with 2 12 inch pipe. I was able to get the pre bent exhaust parts over the axle and clear your rear sway bar nicely. Now she purrrrs!
Kate F.
9/24/2025
Install looks great Steven! I can't wait for you to take it out for a spin so you can see the difference for yourself, it is amazing what a upgraded sway bar does to your ride, no more white knuckles for you, or your wife. What big stops do you have planned on your trip to the West Coast?
Ken
8/19/2025
No complaints with the handling. This is a good sway bar!
Jenny N.
6/25/2024
What I recommend is touching it up with a rust resistant paint like Rustoleum. We will be in contact with you about the damage. Please keep an eye on your email.
Leonard
6/22/2025
After a year and many miles I would give it a five star for sure. Made a great improvement over the stock anti-sway bar. With the rear and front RoadMaster anti-sway along with the RoadMaster steering stabilizer the E-450 33 foot class C motorhome drives like a dream. I highly recommend these three products. If not all at once then this order, 1st rear anti sway bar then 2nd front and then the steering stabilizer with the spring on it.
Dan K.
4/22/2026
wondaful! highly recommended.
Gwendolyn Y.
4/28/2025
High-five on the install, Curtis! Also, thanks for sharing all the pictures and showing all the angles of the sway bar. They are really helpful for anyone looking to tackle this install themselves at home!
Brooke M.
6/17/2025
So glad to hear that, Dimitrios! Thanks for including a photo, too.
Michael
3/25/2026
After a year the system is working great. It has made the driving much safer and smoother.
Gwendolyn Y.
3/25/2026
Gwendolyn Y.
3/7/2025
Sounds like a much smoother drive, Riley! I looked up your camper to see how tall it is and I can see exactly why its called a Bigfoot. What's been your favorite place you've traveled to so far with the camper?
Riley
3/6/2026
The two Roadmastercsway bars weve been using continue to impress and perform like they did on day one. Driving back across the country with some days having stiff criswinds continually we rode comfortably and never had handling or steering issues. I remain adamant that these are undoubtedly the best products on the market for this application and welcome any questions. For reference my truck is a 2018 F350 crew cab DRW, 6.7 diesel 4x4 long bed with Bigfoot 3000 series truck camper. Get the Roadmasters!
Brooke M.
6/18/2025
Super happy to hear that, Kevin! Thanks for including the photos, too. Would you have any tips or tricks for any future readers about how to get around the obstacle you mentioned?
Brooke M.
6/22/2025
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Matthew
10/7/2026
This is a complete game changer when using a truck camper Mine is an Arctic Fox 990. I would list this under a must have accessory when using a truck camper. Unloaded ride when you hit off camber bumps is slightly rougher, but hey its a Ram 3500 dually for hauling heavy stuff. Also the performance when carving twisty canyons with an empty truck is astonishing....Watch out Corvetts, here I come!