H&R Sport Springs lower the center of gravity and reduce body roll for sharper handling while closing the fender gap for a cleaner stance. The progressive rate design preserves ride quality and comfort, and the springs are cold wound from shot-peened 54SiCr6 spring steel and made in Germany. This set fits models without Active Body Control.
Specifications
| Type | Sport progressive lowering springs (fits models without ABC) |
| Material | 54SiCr6 shot-peened spring steel |
| Origin | Made in Germany |
| Part Number | 28874-1 |
| Quantity | Set of 4 (front and rear) |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2012-2020 | Mercedes-Benz | SL550 | Base |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
