MAD Helper Springs – RAM ProMaster – HV-138190
Heavy-duty rear helper springs for RAM ProMaster 1500/2500/3500 (2014–present, FWD). Tuned for constant load—better stance and stability with equipment onboard.
Fitment
- Vehicle: RAM ProMaster 1500/2500/3500, 2014–present (Fiat Ducato X250/X290 platform)
- Axle: Rear — helper springs mount next to the main leaf
- Use: constant payload (tools, racking, camper build)
- Approval: TÜV part approval; fitting manual included
Specs
| SKU | HV-138190 |
| Type | Rear helper springs — constant-load (heavy-duty) |
| Minimum preload | ≈ 350 kg(≈ 770 lb) |
| Shocks | None (compatible with OE or KONI upgrades) |
| Install time | ≈ 45 minutes |
| Set contents | 2 springs + hardware + fitting manual |
| Price | $519 — prices include tax & local import fees; exclude fitting |
Note: Improves support and stability under load. Does not change GVWR or towing ratings.
What you’ll feel
- Reduced rear sag with constant equipment weight
- Less sway/roll in turns and crosswinds
- More control without the upkeep of air systems
Recommended pairing
For extra comfort and control on constant loads, pair with SD-138190 (MAD rear springs + KONI FSD shocks).
Install overview
- Support the van safely. Chock wheels.
- Support rear axle and remove lower shock bolts (both sides).
- Lower axle to create clearance. Seat helper springs beside the main leaf per manual.
- Re-raise axle; torque hardware at ride height. Road-test and re-torque after ~100 miles.
