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SuperSprings SSR-121-54 SumoSprings


SuperSprings SSR-121-54 SumoSprings Rear - Solo Kit - Incl. Hdwr - Capacity 2800 lbs. At 50 Percent Compression - No Drill Required - Never Exceed Gross Vehicle Weight Rating

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SuperSprings - SumoSprings P/N SSR-121-54 Features:

  • Proudly Made In The U.S.A.
  • Requires No Maintenance
  • Enhances Load Carrying Ability
  • 2800 Pounds At 50 Pct Compression
  • Reduces And Stabilizes Sway
  • Improves Overall Driver Control And Ride Comfort
  • Compress Up To 80 Pct Original Height With Full Memory Rebound
  • One Piece Attached On Top/Bottom Will Stretch 50 Pct Of Body ht
  • Progressive Spring Rate
  • Made From Proprietary And Patented Microcellular Urethane
  • Worlds Only Leak P

Product Documents:

View the Full List of Automotive Applications »

Below is an abbreviated list of applications for the SumoSprings.
Transit-350, Transit-350 HD, Ford, 2016, 2015


SuperSprings International Inc, is a manufacturer and distributor of Front SumoSprings and Rear SumoSprings – the world’s first airless airbags; SuperSprings – the unique, self adjusting leaf spring suspension enhancers; SuperSway-Stops – the simple solution to reducing camper body-roll; SuperCoils – the heavy duty, replacement front end coil springs; SuperKeys – the forged torsion keys for lifting and leveling the front suspension while maintaining your ride quality.


  • SRGSSR-121-54
  • SRGSSR-121-54
  • 814699006416
  • SuperSprings
  • New

Shipping Information

  • Item Requires Shipping
  • 6.0 lbs.
  • W7.2500” x H4.5000” x L10.7500”

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