3 Best Enclosed Trailer Sway Control & Weight Distribution Hitches

Neighbors Trailer

Nov 12, 2023
1224
6 min read
best sway control hitc

Trailer sway is the unwelcome side-to-side wag that can turn a calm tow into a heart-stopping moment. On an enclosed trailer, the tall sidewalls catch crosswinds and tractor-trailer drafts especially badly, and even a well-loaded rig can sway under the wrong conditions. The good news: a properly chosen sway control hitch (often paired with a weight distribution hitch) eliminates almost all of this risk. This 2026 guide covers the three sway control hitch styles every enclosed-trailer owner should know, what each one does, what they cost, and how to pick the right setup for your truck and load.

You will also learn how sway control differs from weight distribution, why most modern hitches combine the two, and what installation actually involves.

Sway Control vs. Weight Distribution: What Is the Difference?

These two terms get confused constantly. They solve related problems, but they are not the same thing.

Weight distribution hitches use spring bars to transfer some of the tongue weight from the truck's rear axle back to the front axle and the trailer's axles. The result is a level rig and even braking performance.

Sway control hitches use friction or a fixed-cam design to resist side-to-side movement at the hitch point, dampening sway before it can build into a fishtail.

Most modern enclosed-trailer owners run a combination unit: a weight distribution hitch with built-in sway control. That is the configuration this guide focuses on, with notes on standalone friction sway bars where they still make sense.

The 3 Sway Control Hitch Styles That Matter in 2026

1. Friction Sway Bar (Add-On)

Friction sway bars are the simplest and cheapest option. A single bar mounts between the trailer A-frame and the hitch, applying friction to resist sway. They are typically sold as add-ons to standalone weight distribution hitches.

Pros: low cost, easy to install, works well on lighter enclosed trailers (under about 6,000 pounds gross weight). Cons: requires manual disengagement before backing up, less effective in heavy crosswinds, single point of resistance.

2. Dual-Cam Sway Control

Dual-cam systems integrate sway control into the spring bars themselves. As the trailer starts to sway, the cams engage and snap the rig back into alignment. They work continuously without driver input, do not need disengagement when backing up, and react fast.

Pros: continuous sway resistance, no manual override needed, excellent in crosswinds. Cons: more expensive than friction bars, requires careful initial setup, may produce noise on tight turns.

3. Integrated 4-Point Sway Control

The premium option. Integrated 4-point hitches (such as the Equal-i-zer or similar designs) use friction at four contact points: two at the hitch head and two at the spring bar ends. Sway is resisted at multiple points simultaneously, and weight distribution is built in.

Pros: smoothest tow on the market, highest sway resistance, no add-on parts. Cons: highest price, heaviest hitch, longer install time. For most owners towing 7x16 and larger enclosed trailers regularly, this is the right choice.

Capacity, Cost, and Match-Up

Pick the hitch by gross trailer weight (GTW) and tongue weight (TW). Undersizing is the most common mistake; the hitch should be rated above your loaded numbers, not at them. Use the table below as a starting point.

Enclosed Trailer GTW	Recommended Style	Typical Cost	Best Use Case
Up to 6,000 lbs	Friction sway bar add-on	$60 to $150	Light haul, occasional use
6,000 to 10,000 lbs	Dual-cam sway control	$300 to $500	Mid-duty, frequent use
10,000 to 14,000 lbs	Integrated 4-point	$550 to $850	Heavy enclosed, long hauls
14,000+ lbs	Integrated 4-point or air-ride	$850 to $1,500	Commercial, gooseneck, fleet

Why Setup Matters as Much as the Hitch

Even the best hitch performs poorly if it is set up wrong. Spring bar tension must match the actual loaded tongue weight, the trailer must sit level, and the hitch ball height must be set so that the trailer rides parallel to the ground.

Get this wrong and you can actually create sway you would not have otherwise. The good news: most reputable hitches include detailed setup instructions and many shops will install for $100 to $200 if you bring the trailer loaded the way you typically tow. Always verify your full trailer towing capacity before you load and tow.

What Owners Are Buying in 2026

The market has steadily shifted toward integrated systems on enclosed trailers as prices have come down and used hitch availability has improved. The chart below shows the share of new sway control hitches sold by category in 2026.

Bar chart showing sway control hitch market share by type in 2026

NeighborsTrailer.com

What to Watch Out For

Common mistakes when buying or using sway control hitches:

Wrong spring bar weight rating. If the bars are too stiff for your tongue weight, the truck rides hard and the trailer fights back. If too soft, weight distribution does nothing.

Skipping the brake controller. Sway control reduces side-to-side movement, but trailer brakes are what stop you. If you tow more than about 3,000 pounds in an enclosed trailer, you need a working brake controller. Make sure you understand when a brake controller is required for your setup.

Ignoring crosswind warnings. Even great sway control can be overwhelmed in 40+ mph crosswinds with a lightly loaded enclosed trailer. Slow down and increase following distance.

Frequently Asked Questions

Can I tow an enclosed trailer without sway control?

Legally, in most states, yes for smaller trailers. Practically, anything over about 5,000 pounds GTW behind a half-ton truck benefits enormously from sway control, and many manufacturers require it for warranty coverage on the tow vehicle.

Will sway control fit my existing hitch receiver?

Most use a standard 2-inch or 2.5-inch receiver. Larger commercial setups may need a Class V receiver. Check your truck's manual before buying.

Do I need to disconnect anything when backing up?

Friction bars must be released before backing. Dual-cam and integrated 4-point systems do not require disconnect, which is one of the biggest convenience upgrades.

How long does installation take?

Friction add-ons take 30 minutes. Full weight distribution plus integrated sway typically takes 2 to 3 hours including the careful tongue-weight measurement and adjustment process.

Is it worth paying a shop to install?

For a first hitch installation on an integrated system, yes. Setup precision matters and a $150 install fee is much cheaper than chasing sway problems caused by misadjustment.

Final Take

For most enclosed-trailer owners in 2026, the right setup is an integrated 4-point weight distribution hitch with built-in sway control, sized one capacity tier above your loaded gross weight. The upfront cost is real, but it is the difference between a relaxed tow and a tense, knuckle-white drive. If your enclosed trailer is small and used occasionally, a friction sway bar paired with a basic weight distribution hitch will get the job done at a much lower price.

Looking for an enclosed trailer rental near you that is already set up correctly? Browse Neighbors Trailer's peer-to-peer listings to find a properly hitched rig and book in minutes.

Content updated May 2026