Progressive Rear Helper Springs for Sprinter 3500/4500 (HV-098140)

Looking to improve rear suspension support on your Mercedes-Benz Sprinter 3500 or 4500 with variable cargo loads?
The 
HV-098140 progressive helper spring kit is the ideal upgrade for vans that experience shifting payloads — like delivery fleets, tradesmen, shuttle services, or camper van conversions.

✅ Key Features of the HV-098140



  • Progressive-rate design: Adapts to load – smooth when empty, supportive when loaded
  • Axle position: Rear
  • For models: Sprinter 907.6 / 910.6 (single rear wheel and dual rear wheel)
  • Suitable for: Variable loads
  • Install time: ~45 minutes
  • No shock absorbers required
  • Certifications: Not required for U.S. use
  • Price: $649.00 – includes shipping, duties, and import processing to the U.S.



🛻 Ideal For:

  • Cargo vans and box trucks with changing daily loads
  • Camper builds that need stability without compromising ride comfort
  • Shuttle vans or minibuses with varying passenger weight
  • Tradespeople carrying tools and materials, but not always at full capacity



🏁 Why Choose HV-098140?

Unlike constant-load helper springs, this progressive system only engages when needed, preserving ride quality when empty but preventing rear-end sag and sway when loaded.
No maintenance, no compressor, and no impact on unloaded comfort.


🔧 Technical Specifications

Specification Details
Part number HV-098140
Axle position Rear
Vehicle fitment Mercedes-Benz Sprinter 3500 / 4500 – 907.6 & 910.6 (2018–present)
Load suitability Variable load (progressive support)
Lift height N/A – progressive engagement only
System type Progressive helper spring
Certification TÜV
Installation time Approx. 45 minutes
Price (incl. U.S. shipping, duties, processing) $649.00