Sumo Springs Combo Kit – Ram Promaster


  • Easy to install!
  • Compatible with Ram Promaster 2500 & 3500 (model years: 2014 to current)
  • Sold as a pair (left and right)
  • Includes Rear Sumo Springs AND Front Sumo Coils
  • Maintenance-free
  • Enhances load-carrying ability
  • Reduces and stabilizes sway
  • Improves overall driver control and ride comfort
  • One-piece unit attached on one side used as a replacement/upgrade to factory bump stops
  • Made from proprietary and patented microcellular urethane
  • Free ground shipping to the continental USA!

2 in stock (can be backordered)

SKU: K-30-009 Category:
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From the first time I installed these in my van I knew we needed to carry these in our store.  I’ve noticed a significantly softer and smoother ride, as well as improved handling.  If you’re the type of vanlifer who plans on putting in the miles and enjoys a smoother ride and more control then these are a necessity in my opinion.  But don’t take my word for it, skip ahead to 7:00 in the video and hear what Dave from One AdVANture At A Time has to say about them.

Installation Instructions PDF

  • Coil capacity increased by 15% to 30% &  2800 (lb) Rear Capacity at 50% Compression
  • Compress up to 80% of original height with full memory rebound
  • Progressive spring rate with superior damping properties
  • Never load any vehicle beyond the manufacturer’s GVWR
  • Will not leak or rupture


Product Specifications

Weight 8 lbs
Dimensions 13 × 9 × 11 in
Application(s) Summary RAM ProMaster 3500 4 X 2 (2015-2023)
Capacity Front coil capacity increased by 15% to 30%. Rear Capacity 2800 (lbs) at 50% compression.

Installation & Review

Additional information

Weight 8000 oz
Dimensions 800 × 800 × 800 in

Driver Side, Passenger Side