backed by a lifetime guarantee

Pull-Behind Trailers

Trailer SumoSprings provide progressive cushioning that reduces bounce, absorbs road impact, and keeps your trailer stable at any speed. With easy bolt-on installation and no maintenance required, you can tow safer, protect your investment, and enjoy a smoother ride for the life of your trailer.

Why Pull-Behind Owners Upgrade
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Make Every Tow Smoother and Safer. Better stability, less bounce, and improved cargo protection.

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Cargo Protection

Absorb vibration and harsh impacts to safeguard fragile, valuable, or sensitive items inside.

Bounce Reduction

Minimize jolts from potholes, dips, and uneven pavement, helping protect your trailer’s frame, components, and cargo.

Sway Control

Reduce body roll and sway when driving through curves or in crosswinds — with or without a load.

Driver Confidence

Tow with greater stability and reduced fatigue, making long trips more comfortable and less stressful for both you and your passengers.

Progressive Cushioning That Works Anywhere

Support That Adapts to the Road

Consistent performance with any load or road condition. Trailer SumoSprings aren’t rigid — they provide progressive resistance that’s soft when lightly loaded and firm under heavy weight. That means less bounce, more control, and better protection for your trailer and its contents whether you’re heading across town or across the country.

Recommended Kits for Pull-Behind Trailers:

✅ Trailer SumoSprings – Progressive cushioning for bounce and sway control on most trailers.

Find the Right Kit for You

Install Once. Enjoy for Life.

Hassle-free towing upgrades

Easy Installation, Lasting Reliability
Trailer SumoSprings install quickly with simple bolt-on hardware — no air lines, compressors, or special tools required. Each kit is engineered for a precise fit, making installation straightforward for both DIY owners and professional installers. Once in place, they work automatically, adjusting to your load and road conditions without any need for manual tuning. Built from durable, closed-cell micro-cellular urethane, they deliver years of maintenance-free performance, resisting wear, weather, and the elements mile after mile.
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What Our Customers Are Saying

Just fantastic. I had the SumoSprings installed on our 4,100 lb single-axle travel trailer and I’m amazed at the improvement. There’s almost no sway, and the trailer feels planted on the road. Rough roads and railroad tracks used to jolt the tow vehicle, but now I often don’t feel or hear the trailer at all. I was worried about a stiffer ride causing more bounce inside, but the opposite is true — cushions, drawers, and cabinets stay in place. This has been a huge upgrade in comfort and confidence.

David

Gulf Stream Vista Cruiser 19ERD

 I added sumo springs about 6 months ago and we have traveled about 5K miles since. Can honestly say that they are one of the best upgrades we have done. Much smoother towing and things do not move around as much inside. I did read multiple reviews and stories before installing them and I think the key is to make sure you are not preloading them too much. I measured per the directions, installed them, dropped the trailer on them and then, looking at the amount of “squish” in them, decided to remove one of the spacers. I had previously installed on a F-150 I had and had too much preloading on them and it behaved a lot like you are describing. You really want the frame to only squish them down about 1/4″. That way the Sumos have some “soft” left in them to absorb the little bumps before they start firming up more to catch the bigger ones.

Rodney

Keystone Passport

These were very easy to install and immediately improved the ride of our camper. The trailer now tows much smoother, feels calmer in crosswinds, and big rigs passing no longer push us around. Even inside, things stay in place with less shifting or rattling during travel. The ride is noticeably better, and overall it’s made trips far more enjoyable and less stressful.

Dale

Jayco Jay Flight

Engineered for very type of pull-behind towing

From spontaneous weekend getaways to heavy-duty hauls that span thousands of miles across the country

Recreational Travel

Smoother rides for camping trips and weekend getaways, with better control on uneven roads.

Cargo & Utility Hauling

Stability and protection for tools, equipment, or valuable cargo, reducing risk from road shock.

Full-Time RV Living

Reliable support for constant, heavy loads, keeping your trailer stable day after day.

Long-Distance Trips

Reduced fatigue for driver and passengers, with greater comfort on extended journeys.

Trailer Sumosprings for your Trailer

Two applications. Enough to cover just about every trailer out there.

Trailer SumoSprings are manufactured from our micro-cellular polyurethane. Designed to remove sway, hop, & vibration, this zero-maintenance airbag alternative increases overall driver control and ride comfort when towing. If your towable has axles with a weight rating of 5,000lb or greater, you’ll need the black (-47) option. This will you give you the best load support and control.

Spring-Over Axle Kits

Spring-UNDER Axle Kits

Trailer SumoSprings Contact Plate

If your Travel Trailers has a frame that is off-set from the axle, this requires a contact plate for the installation of your Trailer SumoSprings.

Tow safer, smoother, and smarter.

Upgrade Your Pull-Behind Towing

Whether you use your pull-behind trailer for camping, cargo hauling, or everyday work, Trailer SumoSprings deliver better control, less bounce, and more cargo protection. Install once and enjoy the benefits for the life of your trailer.

Find the Right Kit for You

Shop Other Towing Solutions

Our full lineup of suspension upgrades includes options for motorhomes, 5th wheel trailers, and commercial towing setups. Whatever you tow, we have a proven solution to improve stability, safety, and comfort.

Class A Motorhomes

Heavy-duty load support that smooths out long hauls for the largest motorhomes on the road.

Class B Motorhomes

Compact coach upgrades that balance agility with stability, even when fully loaded.

Class C Motorhomes

Progressive support to reduce sway and sag while keeping handling predictable.

5th Wheel Trailers

Progressive cushioning to control bounce, protect cargo, and stabilize towing.

Find the Right Kit for You

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