SumoSprings® are a patented suspension product designed to enhance load carrying ability, stabilize sway, and improve overall driver control and ride comfort. They are maintenance free, do not leak air, and do not require airlines or compressors. SumoSprings® are manufactured in a variety of heights, diameters and densities to support multiple front and rear applications. They are manufactured from proprietary closed micro-cellular urethane providing a smooth and progressive spring rate.


One-piece unit attached on one side used as a replacement/upgrade to factory bump stops


One-piece unit attached on top and bottom allows up to 50% expansion of original body height


Two-piece unit attached on top and bottom using separate male and female pieces allows unlimited travel

Frequently Asked Questions

We want our website to be helpful; to answer the questions you have about our products. If this list and page do not provide you with the information you came looking for, please let us know! Call us toll-free at +1 (800) 898-0705, or send us a message.

Airbags and SumoSprings are types of air springs. The main difference between an airbag and SumoSprings is how the air is captured/controlled. With a traditional air bag, a compressor with hoses and valves is used to fill up the balloon inside of the airbag. This requires maintenance so the air bag does not crack and/or leak. The air inside of SumoSprings is captured in millions of air pockets inside the micro-cellular urethane material. You could drill a hole through SumoSprings and they would still work.
The capacity of SumoSprings varies depending on the height, diameter, and density of the spring. SumoSprings are rated by how many pounds of pressure it takes to compress the spring down to 50% of its original body height. You can view a SumoSprings capacity in the Product Guide, Application Guide, or in the Official SuperSprings Online Shop product additional information tab.
The different SumoSprings colors identify their density. SumoSprings come in three different densities: -40, -47, and -54. Blue SumoSprings are -40, black SumoSprings are -47, and yellow SumoSprings are -54. Scroll down to learn more about what color/density is right for you.
Both! SumoSprings are used for too many applications and benefits to list. Because of their progressive spring rate, and cushion like urethane material, SumoSprings absolutely increase ride comfort. SumoSprings are also springs! Meaning, they will help carry loads. Without SumoSprings, your original equipment carries 100% of the load. SumoSprings work in conjunction with your original equipment to share the load, helping level out sag and reduce wear and tear on your original equipment.
Does your truck/van have rear leaf springs? Do you regularly use your truck/van to carry heavy loads? Is your truck/van setup with a service body? Is your vehicle a crane truck, wrecker truck, tow truck, or other work industry truck carrying a lot of weight? Are you experiencing excessive rear-end sag negatively effecting drive-ability? Does your truck/van have noticeable body roll and poor handling while unloaded or loaded? If so, it sounds like SuperSprings are a great match. Are you an R.V. owner? Do you own a truck/van used for recreational purposes such as towing a boat? Are you looking for a smoother ride and want to dampen road noise and shock? Is your rear suspension not a leaf spring pack? Do you take your vehicle over rough terrain or off-road? If so, it sounds like you should check out SumoSprings.

Blue -40

Blue -40 density captures more air in the millions of micro-cellular bubbles, creating an air spring suitable for light and medium duty applications.

Black -47

Black -47 density balances the amount of urethane and air bubbles to create an air spring suitable for light, medium, and heavy duty applications.

Yellow -54

Yellow -54 density traps a smaller amount of air in the air spaces creating a stronger air spring suitable for medium and heavy duty applications.

What color/density is right for you?

The interactive Application Guide will indicate what densities are available for your application. Where there are multiple choices, pick a density that best suits your needs and ride preferences.

Blue -40
Light & Medium Duty
Black -47
Light, Medium, & Heavy Duty
Yellow -54
Medium & Heavy Duty

  • Recreational

    SumoSprings benefit a large variety of recreational applications, such as: pickup trucks, sport utility vehicles, vans, motorhomes, off-road vehicles, vehicles used for towing, and others.

  • Commercial

    SumoSprings are used in a variety of commercial applications to increase load leveling abilities, reduce sway, and provide safer ride control resulting in reduced overall maintenance costs. Commercial applications include: utility bodies, crane trucks, wreckers, tow trucks, snow plows, and more.

  • Individuals

    SumoSprings can be installed in under an hour by a skilled installer. Mechanically minded individuals will be comfortable and confident with step-by-step and easy to follow installation instructions that include drawings and photographs.

  • Fleets

    SumoSprings are a great solution for individuals needing suspension enhancement, as well as fleets looking to increase suspension abilities, provide safer ride control, and reduce the overall costs of vehicle maintenance. Fleet applications include: buses, delivery and freight, law enforcement, and more.

Ride Comfort

SumoSprings absorb harsh bumps and jolts to provide a smooth ride over uneven surfaces, highway joints, and other rough terrain.

Driver Control

By reducing harsh movements, SumoSprings give drivers better control of their vehicle. This increases safety and makes for more comfortable travel.


SumoSprings have a progressive spring rate. They start to compress smoothly with less resistance and provide greater resistance as they compress further.


SumoSprings increase comfort and control, help stabilize sway, and level loads. This makes SumoSprings a unique and complete suspension solution.

Safe. Supportive. Simply Super.

SumoSprings enhance vehicle safety by creating greater ride control and absorbing harsh movements caused by: rough road conditions, front end dip during sudden braking, side-to-side sway, bumps, highway joints, and more. They are an enhancement to your suspension, supporting not only the existing suspension components but reducing wear and tear on other vehicle components. SumoSprings are simply “super.”


The Official SuperSprings® Online Shop

Use the Shop Online button below to buy SumoSprings online. Products listed in the Official SuperSprings® Online Shop are sold and shipped directly by SuperSprings®. As a manufacturer, we are very proud to support the many warehouse, jobber, retail, and eTailer locations selling our products. To learn more about where to buy our products, click here.

Shop Online

Learn more about SumoSprings

Check out the SuperSprings YouTube channel for more videos.