Quick Answer: The CURT 17200 Trailer Anti-Sway Bar Control Kit (about $70-$90) is the best trailer sway control for most owners who already have a weight distribution hitch — it’s a friction bar that bolts on as a cheap add-on. Buying a hitch from scratch instead of adding to one? The CURT TruTrack 4P (about $610) builds 4-point sway control directly into the weight distribution bars, and the Equal-i-zer 4-point Sway Control Hitch (about $611-$1,023+ depending on weight rating) is the premium integrated option with a 10,000 lb GTW rating.
Sway control is the piece of trailer towing that gets skipped for the same reason a brake controller does — nothing goes wrong until the first gust of crosswind or the first semi-truck passes close at highway speed, and that’s the worst possible moment to discover the trailer fishtails. This is genuinely uncovered ground on this site: our overlanding trailer and trailer hitch lock guides both assume a trailer towing safely, but neither one addresses the side-to-side pivot at the hitch that causes sway in the first place. The four options below split into two real categories — a cheap friction bar added to an existing hitch, or an integrated hitch that handles weight distribution and sway control as one system — and the FAQ above covers which one a given setup actually needs.
Trailer sway control by the numbers
- Integrated weight-distribution-plus-sway-control systems run up to roughly $900-$1,000+, while a standalone friction sway control bar costs as little as $60-$90 — according to multiple towing-accessory retailers’ current pricing, the gap between “add a bar” and “replace the hitch” is roughly 10x, which is the real decision point, not brand preference.
- Most trailers with a tongue weight above roughly 500-600 lb need weight distribution regardless of sway control, per towing-education guidance from hitch manufacturers — meaning a friction bar alone is the wrong fix for a trailer that’s swaying because it’s unevenly loaded onto the rear axle, not because it lacks sway resistance.
- The CURT TruTrack 4P carries an 8,000-10,000 lb gross trailer weight rating and the Equal-i-zer 4-point hitch is rated to 10,000 lb GTW, both well above the roughly 3,000-7,000 lb range of most overlanding and mid-size travel trailers this site covers, so neither is overkill for the audience buying one.
Trailer sway control picks at a glance
| Product | Type | Works with existing hitch? | Best for | Price |
|---|---|---|---|---|
| CURT 17200 | Friction bar | Yes, bolt-on add-on | Best overall / budget | ~$70-$90 |
| Reese Dual Cam Sway Control | Dual-cam friction | Yes, bolt-on add-on | Best friction upgrade | ~$350 |
| CURT TruTrack 4P (17500) | Integrated 4-point + weight distribution | No, replaces hitch | Best integrated | ~$610 |
| Equal-i-zer 4-point Sway Control | Integrated 4-point + weight distribution | No, replaces hitch | Best premium / highest GTW | ~$611-$1,023+ |
1. CURT 17200 Trailer Anti-Sway Bar Control Kit — Best Overall / Budget
CURT 17200 Trailer Anti-Sway Bar Control Kit
- Friction-based sway control bar that bolts onto an existing weight distribution hitch's mounting brackets.
- Adjustable friction tension lets the resistance be tuned to trailer weight and road conditions.
- Lowest-cost way to add real sway resistance without replacing a hitch that's already working.
- Needs a weight distribution hitch with compatible mounting brackets already installed — it's an add-on, not a standalone fix.
The 17200 earns the overall pick because most trailer owners looking into sway control already have a weight distribution hitch installed and just need the missing piece — a single friction bar at under $90 is a far smaller ask than a full hitch replacement. Prefer something to listen to on the long haul instead of the radio? Start a free Audible trial and load up an audiobook before pulling out of the driveway. The adjustable tension means the bar can be set looser for a lightly loaded trailer and cranked tighter for a fully packed one, without buying a second unit.
2. Reese Dual Cam Sway Control — Best Friction Upgrade
Reese Dual Cam Sway Control
- Dual steel-on-steel cam system that actively forces the trailer back into alignment once it starts to drift, rather than only resisting motion.
- Mounts on both sides of the hitch for symmetric correction, unlike a single-bar friction kit.
- Works alongside most existing weight distribution hitch setups as an add-on, not a replacement.
- Roughly 4-5x the CURT 17200's price for a meaningfully stronger correction mechanism, not a marginal upgrade.
The Dual Cam sits in a real middle tier between a basic friction bar and a full integrated hitch — the detent-locked cam mechanism doesn’t just slow sway down, it pulls the trailer back toward center, which is a meaningfully different job than passive friction resistance. That’s worth the jump in price for anyone towing in consistently windy conditions or at highway speed often enough that a single friction bar’s passive resistance isn’t cutting it, without going all the way to replacing the hitch itself.
3. CURT TruTrack 4P (17500) — Best Integrated
CURT TruTrack 4P (17500)
- Spring-and-cam system with four integrated control points built directly into the weight distribution bars.
- Actively pushes the trailer back into alignment as it drifts, combining the Dual Cam's active correction with weight distribution in one install.
- Rated for 8,000-10,000 lb gross trailer weight, covering mid-size travel trailers and most overlanding trailers.
- Replaces the existing hitch entirely rather than bolting onto it — a bigger install than any friction-bar add-on.
The TruTrack 4P is the right call for anyone buying a weight distribution hitch for the first time, rather than retrofitting sway control onto one that’s already installed — paying once for a system that handles both jobs costs less in total than a cheap hitch plus a Dual Cam add-on, and the 4-point design responds to sway from more directions than a 2-point friction bar can. It’s overkill to buy this just for sway control if a perfectly good weight distribution hitch is already mounted; that’s the case for the CURT 17200 or Reese Dual Cam instead.
4. Equal-i-zer 4-point Sway Control Hitch — Best Premium / Highest GTW
Equal-i-zer 4-point Sway Control Hitch
- 4-point sway control integrated into the weight distribution system, with a limited lifetime warranty.
- Rated up to 10,000 lb gross trailer weight — the highest capacity on this list.
- Works with all bumper-pull trailers, not a vehicle-specific or trailer-specific fit.
- Price climbs well past the TruTrack 4P at higher weight-rating configurations — pay for the capacity actually needed, not the top tier by default.
The Equal-i-zer is the hitch to reach for when the trailer being towed is at the heavy end of what this site covers — a loaded overlanding trailer with a full water and gear setup, or a mid-size camper pushing toward 10,000 lb GTW. The lifetime warranty and universal bumper-pull fit make it the safer long-term buy for anyone planning to tow the same rig for years, but the price spread across weight-rating configurations means it’s worth confirming the trailer’s actual GTW before paying for capacity that will never get used.
How to choose trailer sway control
Start by checking whether a weight distribution hitch is already installed. If it is, and the trailer’s tongue weight is already properly distributed, a friction add-on like the CURT 17200 or Reese Dual Cam is the cheaper and simpler fix. If there’s no weight distribution hitch yet, or the trailer is heavy enough that one is required regardless of sway, skip straight to an integrated unit like the TruTrack 4P or Equal-i-zer and solve both problems in a single install. Either way, sway control doesn’t replace a properly rated trailer brake controller or correctly wired trailer wiring harness — all three address different failure points in towing the same trailer safely.
The bottom line
For most owners adding sway control to a hitch that’s already doing its job, the CURT 17200 is the clear default — cheap, bolt-on, and genuinely effective. Anyone towing often enough in wind or at speed to want active correction instead of passive resistance should step up to the Reese Dual Cam. Buyers starting from scratch, without a weight distribution hitch installed yet, get more total value from the CURT TruTrack 4P, and anyone towing a heavier rig at the top of this site’s trailer range should look at the Equal-i-zer 4-point Sway Control Hitch instead. Pair whichever one fits with our best trailer brake controller and best overlanding trailer guides to cover the rest of the towing setup.