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  1. Weight Distribution Hitch
  2. Tuson RV Brakes
  3. Sway Control Only
  4. Prevents Sway
Tuson Asymmetric Sway Control - 1 to 4 Axles

Tuson Asymmetric Sway Control - 1 to 4 Axles

Item # 335TSC-1000
Our Price: $392.46
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Weight Distribution Hitch
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335TSC-1000 - Prevents Sway Tuson RV Brakes Weight Distribution Hitch
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Electronic sway control system helps control and reduces sway in trailers with or without weight distribution. Monitors trailer lateral movement and independently applies the left and right trailer brakes to correct the sway. Great Prices for the best weight distribution hitch from Tuson RV Brakes. Tuson Asymmetric Sway Control - 1 to 4 Axles part number 335TSC-1000 can be ordered online at or call 1-636-306-4830 for expert service.
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  • Reviews (16)
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Tuson RV Brakes Weight Distribution Hitch - 335TSC-1000

  • Sway Control Only
  • Tuson RV Brakes
  • Prevents Sway

Electronic sway control system helps control and reduces sway in trailers with or without weight distribution. Monitors trailer lateral movement and independently applies the left and right trailer brakes to correct the sway.


  • Electronic sway control system limits side-to-side movement of trailer during towing
    • Unit corrects sway by independently activating your trailer's left and right brakes
    • More effective than friction sway control systems due to having more force to counteract sway
  • Continuously monitors trailer angle, movement, speed, and other parameters for real-time braking calculations
  • Proprietary algorithm calculates and applies the most effective braking response within milliseconds of detecting trailer sway
  • Independently applies left or right trailer brakes (asymmetric braking) to counteract lateral movement and quickly correct trailer sway
  • Sway control braking is applied for 3/4 of a second to prevent tire flat-spotting and still create enough opposing torgue to correct sway
  • Two modes of brake activation - gust-of-wind activation and building sway activation - to correct trailer sway
  • Automatically disables gust-of-wind activation mode when on rough terrain to prevent unwanted braking
    • Gust-of-wind activation mode remains disabled until rig is back on smooth ground
    • Building sway activation remains active at all times
  • System enters sleep mode after 30 minutes of inactivity to conserve trailer battery
    • System powers on when a brake signal is detected from the brake controller
  • LED light provides system status for easy troubleshooting
    • Indicates normal operation, rough terrain or sleep mode, system power issues and more
    • 10' Cord included for mounting light in easy-to-see location on front of trailer
  • Won't interfere with your brake controller, weight distribution system, or mechanical sway control
  • Compatible with all truck OEM trailer sway control systems and integrated brake controllers
  • Fully sealed, water-resistant construction protects against road spray
  • One-time, maintenance-free installation
    • Module mounts 1' to 10' behind hitch ball, on the trailer centerline
    • Splitting electric trailer brake circuit into 2 separate circuits is required for independent left and right side braking
    • 14-Gauge wiring (sold separately) splices into trailer's brakes and connects to trailer's 12-volt battery, breakaway switch, and trailer plug


  • Application: trailers with 1 to 4 axles (2 to 8 brake assemblies)
    • Compatible with electric trailer brakes only
  • Dimensions: 5-3/4" long x 3-1/2" wide x 2-1/4" tall
  • 2-Year warranty

TSC-1000 Tuson Asymmetric Sway Control System for Trailers and 5th Wheels

Installation Details 335TSC-1000 Installation instructions

Customer Satisfaction Score:

Customer Reviews

Tuson Asymmetric Sway Control - 1 to 4 Axles - 335TSC-1000

Average Customer Rating:  4.7 out of 5 stars   (16 Customer Reviews)

Electronic sway control system helps control and reduces sway in trailers with or without weight distribution. Monitors trailer lateral movement and independently applies the left and right trailer brakes to correct the sway.


I bought this to tow our Apex Nano (GVWR 6000lb) with our 2013 Land Rover LR4. Land Rover does not recommend a WDH, so we had this installed by our local RV repair shop to help with sway control.

Overall, I'm satisfied with the product. It definitely helps more than the previous sway controller (Hayes) that our dealer had installed when we first purchased our trailer. On a recent 200+ miles trip, we could see (thanks to the LED light) the device activate on several instances to limit sway. It made for a more pleasant trip overall. I haven't towed with strong winds yet, so that will be for another time.

Note that the first 30 minutes or so were rather rough, but things calmed down afterwards. My hypothesis is that this is related with the initial sway control device calibration.

eTrailer was also able to price match a lower price I found elsewhere. Great service!


Fast delivery, great customer service.

unit was fairly easy to install. Though I wish it came with all the neccessary hardware i.e the self tapping screws for the light mount.


I got one of these for our Hawk 2-horse bumper-pull trailer about a year ago. In central Illinois we often have 30-50 mph gusty wind, so my wife & I have had several opportunities to put this thing to the test--and it passed with flying colors! On top of it doing a good job controlling sway, it is so convenient to be able to simply hookup and go, and there is no extra equipment to deal with when backing up.


Had this unit installed now for over a year and haven't looked back. Works as advertised, but how would you know when all you need to do is install it, drive it and have no sway control issues with your travel trailer which is exactly what its supposed to do. Little extra thinking and work wiring it up yourself, but the excellent service department provides you with all of the pointers and clarifications that you need to successfully install the unit yourself if you are handy around vehicles and minor automotive wiring. One of the best features for me about this unit is saving on tow vehicle payload weight take ups which seems to be an ever present issue in the RV travel trailer world where the added weight from mechanical RV hitch load levelers and sway control mechanical mechanisms eating up your vehicles payload capacity and also from losing sway control function with mechanical sway control hitches during inclement wet weather.From what I read from fellow RV`rs and their reasons for not choosing this electronic sway controller is seems to be their hesitancy to tackle the minor brake wiring adjustments to your TT`ers brake wiring needed during installation, and they shouldn`t be because its not that difficult. Well worth the money from my perspective!


For the most part it's a waste of money. It's a cool device and when the technology matures it will probably save a lot of bumper pulls. The problem with this product is that the trailer has to have significance way in order for it to work,... and if you are an experienced driver, you've already compensated by the time that happens. It's way is an issue on your trailer then replace the suspension you'll get a much better response

I wanted to reach out to you in regards to your review on the Tuscon braking system. You mentioned that it is taking a lot of sway before the system is working and I wanted to ask a few follow-up questions before I reach out to the manufacturer. Are you using a brake controller as well. If so what brand is it or was it from the factory? Does you GMC have an automatic leveling system? How many brakes do you have on the trailer or how many axles?
-- Etrailer Expert Jenny N - 12/03/2021


etrailer, thus far, has been nothing but terrific. Fast shipping and what appears to be knowledgeable staff. What more can you ask for? One thing. If you are showing products based on the shopper's tow vehicle be more explicit about additional product/installation requirements/recommendations. Assume that some of the shoppers are new RV'ers. This Tuson Asymetiric Sway Control unit requires the short and inexpensive plug and play wiring connecter thingy for a Subaru Ascent, unless an owner wants to cut into their car's wiring and splice. I doubt that most would prefer to do that. The product was shown based on the owner's car. Show us the whole picture clearly and explicitly. The link in the second paragraph is insufficient. The thingy is inexpensive, but the time wasted is not. Thanks.


Arrived on time as expected, now I need to find an installer


I purchased this to use with a 23' Airstream travel trailer that I am towing with a Land Rover Discovery. Land Rover, unfortunately, does not recommend the use of weight distribution hitches on their vehicles so it was necessary to find some other way to control sway. I used this Tuson Sway Control device plus a Curt Friction Sway Control. With this setup we have been able to safely tow our Airstream through difficult conditions such as high winds, rain and mountain passes. In high winds it is noticeable, and extremely impressive, to feel how the Tuson activates the trailer brakes to control sway.

Having said this, I would not recommend towing a trailer of this weight without a weight distribution hitch. We plan to switch our tow vehicle to one that will allow the use of weight distribution (which seems to be any vehicle other than a Land Rover). Even after changing to a setup with a weigh distribution hitch with integrated sway control, I will still be very glad to have the Tuson device installed on the trailer. Were I to purchase another travel trailer I would immediately install another Tuson Sway Control regardless of the tow vehicle and hitch setup. I am actually very surprised that travel trailer manufacturers do not offer this as a pre-installed option on their trailers.

One thing to note for Airstream owners is that Airstream brakes are wired in series which, at least for me, made this not a do-it-yourself installation. My local Airstream dealer charged about $500 for installation which was well worth the price and it works great.


This is a great "peace of mind" product. It works great on my Palomino Puma XLE 25TFC toy hauler. This trailer is 30' long 12' tall and 8' wide. It weighs 6027 lbs empty and it is a terror to pull. This trailer starts swaying with the slightest breeze. I first installed a Husky centerline sway control load distribution hitch and that helped a little bit but after installing the Tuson, sway has litteraly stopped. The installation was pretty involved and you better be comfortable with cutting up your existing break wires. The installation also took me a little over 5 hours but it was well worth it. This kit also comes with an LED control light that mounts on the front of the trailer to let you know when the trailer is experiencing sway. The light will turn red until the sway is corrected. I saw the light turn red several times but by the time the red light comes on the sway is corrected and you never feel it. I highly recommend this product it is worth every penny.


Super service. Package delivered 1 day before schedule even with a snowstorm.


So far, so good. No real swaying... minor swaying in heavy side-winds. Easy installation for a DIY person.


I called for information about this and other items and Danielle the person I spoke with was very knowledgeable which is kind of rare anymore.






See what our Experts say about this Tuson RV Brakes Weight Distribution Hitch

  • Electronic Sway Control on 25 Foot Airstream Trailer with Propane Cover Near Coupler
    The Tuson Electronic Sway Control System for Electric Trailer Brakes # 335TSC-1000 will work great with your 25 foor Airstream trailer. The unit will mount to the center portion of your trailer 5-10 feet back from the hitch ball location, so it will be behind the propane area by at least a couple feet.
    view full answer...
  • Will the Tuson Electronic Sway Control System Fit a Commercial Trailer
    The electronic sway control devices we carry like the Tuson Electronic Sway Control System part # 335TSC-1000 are excellent options to both help maintain and prevent trailer sway issues but they only work on trailers that have electric brakes. If you are referring to a commercial trailer like that on the back of a lorry/semi then odds are you have air or hydraulic brakes which means we would not have an electronic sway control device for you. However, if by some chance you do have electric...
    view full answer...
  • How to Reduce Trailer Sway When Towing a 5th Wheel Trailer
    I believe you are referring to your 5th wheel trailer swaying by the "axle whip" term you were using. If you have electric brakes then we do have the electric sway control unit # 335TSC-1000 from Tuson which is compatible with trailer that have up to 4 axles. Aside from this there isn't really anything you can add to your 5th wheel trailer to reduce the sway but I do have some pointers that you can follow. Start off by making sure your 5th wheel trailer is evenly loaded side-to-side and...
    view full answer...
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  • Should Weight Distribution be Used for Towing a 10K Trailer with a Class A Motorhome
    Weight distribution (WD) systems are really only needed when the weight of the trailer is at least half of the weight of the vehicle towing it. Since this isn't the case with your Class A motorhome pulling your 10K trailer I doubt you really need a WD system but you could benefit from adding some sway control. Typically we recommend using a WD system with integrated sway control but since the WD isn't needed you can just use one of our standalone sway control units. Another thing to note...
    view full answer...
  • Is Tuson Electronic Sway Control Compatible with 2018 Ram 2500 OEM Controller and 30' Travel Trailer
    The Tuson Electronic Sway Control System # 335TSC-1000 has been confirmed to work with Dodge OEM brake controllers (verified by Tuson) and is compatible with 1 - 4 axles. Since you have an OEM controller on your 2018 Ram 2500 and your 30' travel trailer only has 2 axles this sway control system will work great for you! Attached is a review video and the written instructions for you to check out as well.
    view full answer...
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  • Mounting Orientation of Tuson Electronic Sway Control System
    The label side of the Tuson Electronic Sway Control System for Electric Trailer Brakes # 335TSC-1000 needs to face forward and be in a vertical orientation perfectly centered on the trailer 5-10 feet back from the center of the king pin like what you see in the picture I attached. That said, for the type of sway you are experiencing your best solution it so move your axles further back on your trailer.
    view full answer...
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  • Tuson Sway Control Location and Orientation
    The instructions for the orientation of the Tuson Sway Control part # 335TSC-1000 when installed are very specific. The red dot on the label has to be at the trailer's center line and the arrows on the label that say "Mount with this side UP" has to be followed as well. You need to have the module mounted between 5 and 10 feet behind the coupler as well. It looks like your trailer will be a bit of challenge to pull all of this off but your worst case scenario would require you to fabricate...
    view full answer...
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  • Mounting Orientation of Tuson Electronic Sway Control System
    I reached out to my contact at Tuson and they informed me that there is not a particular direction the sticker on Tuson Electronic Sway Control System # 335TSC-1000 should face. So long as all the requirements are met, "up" on the label is facing up, the red dot is in the center line of the trailer and the red bar is parallel with the axle and 5 to 10 feet from the hitch ball it doesn't matter if it is facing forward or back. He also told me that a line has been added to the instructions...
    view full answer...
  • Installation Location of Tuson Electronic Sway Control for Electric Trailer Brakes
    The Tuson Electronic Sway Control System for Electric Trailer Brakes # 335TSC-1000 has installation instructions that give a placement location on the center of your trailer and 5-10 feet behind the hitch ball. The unit comes with a wiring harness so you can customize the fit within the parameters given. The placement you show in the photo will not work as it uses a sensor to monitor trailer movement and an algorithm based on that specified mounting location.
    view full answer...
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  • Is Tuson Electronic Sway System Compatible with Weight Distribution and Integrated Brake Controller
    The Tuson Electronic Sway Control System # 335TSC-1000 that you referenced is perfectly compatible with your Curt weight distribution and integrated brake controller of your 2020 Ford F-150.
    view full answer...
  • Great Trailer Sway Control with the Tuson Electronic Sway Control and the Chevrolet Silverado 1500
    The Tuson Electronic Sway Control, part # 335TSC-1000, is a great addition to your trailer with electric brakes. It works in the same way the Stabilitrak system of your 2020 Chevrolet Silverado 1500 does. The Stabilitrak senses sway in your Silverado and intuitively applies brakes to correct the sway. When hauling a trailer, your Stabilitrak system has the ability to apply the trailer brakes to correct sway once it has begun affecting your vehicle. Therein lies the key difference of the...
    view full answer...
  • Electronic Sway Control Availability for Trailer Pulled With 2011 GMC Yukon XL
    The Hayes Sway Master is no longer available from Hayes. A great alternative is the Tuson Asymmetric Sway Control # 335TSC-1000. This system can actually control the left and right side brakes independently. The module is smart enough to be able to detect whether the sway is caused by wind or from building sway and will automatically adjust when on rough terrain.
    view full answer...
  • How to Reduce Sway on a 2015 Suburban LTZ with an Auto-Levelling System?
    This actually happens with vehicles that use an auto-leveling system pretty often. Disengaging this system while towing will definitely help as it will allow your weight distribution system to have more tension on the bars, which will help with sway. However, if you are unable to turn off the auto-leveling, then you will need to let the vehicle auto-level and then add more spring bar tension to your system. This should get the system to compensate for everything. With all that being said,...
    view full answer...
  • Compatibility of Tuson 335TSC-1000 Asymmetric Sway Control With Gooseneck and 5th Wheel Trailers
    The Tuson # 335TSC-1000 Asymmetric Sway Control is compatible with any trailer with electric brakes that has between 1 and 4 axles. This is a very neat system that momentarily applies the left or right trailer brakes to counteract trailer sway which would work great on a gooseneck or 5th wheel trailer. I've linked to a demonstration video that shows how the system works.
    view full answer...
  • Tuson Electronic Sway Control Experiencing Tail Wag At Speeds Over 65 MPH On 2015 Toyota Tundra
    I have heard of similar issues and the culprit is often that the Trailer Sway Control System on your 2015 Toyota Tundra is fighting the Tuson Asymmetric Sway Control # 335TSC-1000 that you have on your Safari Condo Alto 2114. This is not normal and your unnerving feeling is completely justified. The Tuson system is attempting to send power to each side of your trailer individually and the Tundra is wanting to send power to both sides to attempt to correct the sway. You will have to turn...
    view full answer...
  • Sway Control that Can be Used with 2013 Porsche Cayenne
    Since your 2013 Porsche Cayenne is not rated for use with a weight distribution system and we don't have suspension enhancement options either the only thing we really could help with would be with a sway control device like the # 335TSC-1000 which can tell if your trailer is starting to sway and will apply the brakes in a way that will correct it.
    view full answer...
  • Is Electric Sway Control Needed With Tow Setup with Weight Distribution and Friction Sway Control
    Assuming your trailer is loaded properly (with cargo weight as far forward as possible), and you are using a weight distribution system with sway control built in like the Fastway E2 I wouldn't say an electric sway control like the part # 335TSC-1000 would be necessary. It certainly wouldn't hurt and it would be nice knowing that in the event of any sway it would immediately stop and correct it though.
    view full answer...
  • Will Tuson Asymmetric Sway Control Work With 2018 Ford F-150
    The Tuson Asymmetric Sway Control part # 335TSC-1000 works by engaging the trailer brakes to control sway therefore it's compatible with almost any vehicle that has an electric trailer brake controller. There will be no issues using this on a 2018 Ford F-150 with factory trailer brake controller.
    view full answer...
  • Recommended Trailer Sway Control For a Forest River R-Pod Pulled by a 2015 Honda Pilot
    I recommend using the Tuson Asymmetric Sway Control # 335TSC-1000 to control the trailer sway on your Forest River R-Pod M-177 camper. This electronic sway control uses the brakes on the trailer independently to eliminate the trailer sway. Per the owners manual for your 2015 Honda Pilot, Honda does not recommend using a weight distribution hitch system on your vehicle.
    view full answer...
  • Importance Of Trailer Sway Control And The Difference Between Vehicle Sway Bars
    Absolutely, the Tuson Asymmetric Sway Control # 335TSC-1000 is going to help keep your trailer tracking straight behind your 2019 Toyota Tacoma. The sway bars on your Tacoma work to prevent excessive body roll and stabilize the vehicle while you are driving. Sway control on a trailer is different as the trailer can want to sway from left to right pivoting on the hitch ball, which can be very frightening. If you have never experienced it I hope you never do, I have linked a video below...
    view full answer...
  • Electric Sway Control that Can be Used with 2022 Chevy Silverado with OEM Brake Controller
    I have a solution for you but the Lippert sway control part # LC380605 does not work with the GM OEM brake controllers like what your 2022 Silverado has. Instead you'd want to go with the Tuson Sway Control Unit part # 335TSC-1000 which does work with all OEM brake controller
    view full answer...
  • Will Tuson Asymmetric Sway Control Work On 2021 Jeep Wrangler with Integrated Trailer Sway
    Yes, the Tuson Asymmetric Sway Control part # 335TSC-1000 will work just fine on a 2021 Jeep Wrangler with factory integrated trailer sway. I don't have any data to support this but reviews seems to indicate this system works better than the factory anti-sway control systems. The Sway Command will monitor the vehicle and trailer speed then apply brakes accordingly to keep the trailer in-line.
    view full answer...
  • What Causes 5th Wheel Trailers to Sway
    The main cause of sway has to do with weight distribution and not enough weight over the tongue. That said, so long as you stay within the manufactures load carrying capacity and distribute your cargo accordingly you should not have too many issues. There are also devices you can install on the trailer to prevent sway like the Tuson Asymmetric Sway Control part # 335TSC-1000 which is what I highly recommend. This device will apply the trailer brakes to prevent sway from happening and it's...
    view full answer...
  • How To Fix Sway Issues On 2019 Ford F-150 When Towing with WDH Hitch
    The first step to fighting trailer sway would be to make sure you have the trailer loaded properly with the correct amount of tongue weight (10-15% of GVWR) and that the trailer sits level with the vehicle. If you still have issues once these are both checked you can look into electric anti-sway devices which use the trailer brakes to help stabilize the trailer when sway occurs at speed. I recommend the Tuson Asymmetric Sway Control part # 335TSC-1000.
    view full answer...

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