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Motorhome Suspension

SuperSprings and SumoSprings for Motorhomes

Use this guide to understand SuperSprings and SumoSprings for Motorhomes, confirm fitment and choose the next step for your motorhome.

SuperSprings and SumoSprings Solve Different Load Problems

Both product families add support, but they work differently and must be selected for the exact chassis.

SumoSprings

Microcellular urethane helper springs with a progressive response. They require no air lines and are available in application-specific sizes and densities.

SuperSprings

Self-adjusting steel helper springs for supported leaf-spring applications. They add load support and can reduce body roll.

SuperCoils

Replacement steel coil springs for supported applications, not inserts or add-on bump stops.

Other Products in the Family

  • Trailer SumoSprings: Progressive support for compatible trailer suspensions.
  • Coil SumoSprings: Inserts for supported coil-spring applications.
  • SuperSway-Stops: Additional engagement support for specific overload-spring and air-spring setups.

Choose by Weight, Clearance and Chassis

Color, size and density are functional specifications, not cosmetic choices. Confirm the loaded gap, axle position, chassis and part number. Use the SumoSprings vs. air bags guide when deciding between fixed progressive support and an adjustable air system.

Before You Order

Confirm the Chassis

Use the chassis manufacturer and model year, not only the name on the coach.

Name the Symptom

Decide whether the problem is vertical motion, body roll, steering movement, axle shift or load support.

Inspect the System

Check tires, alignment, mounts, bushings and existing suspension parts before replacing one component.

Related Motorhome Guides

Frequently Asked Questions

Will SuperSprings and SumoSprings for Motorhomes fit every motorhome?

No. Motorhome suspension parts are chassis- and often axle-specific. Confirm the chassis manufacturer, chassis model year, GVWR and suspension layout.

Do I need to inspect the RV before ordering?

Yes. Tire pressure, alignment, worn bushings, loose steering parts and damaged mounts can change the diagnosis or prevent a new part from working as intended.

Where should I start if I am not sure what I need?

Use the vehicle selector with your chassis information, then describe the exact motion or load problem. Contact Motorhome Shocks & More if two applications appear similar.

Confirm Fitment Before You Order

Use the chassis information, model year and axle details from your motorhome, or call us when two applications look similar.