ST X height-adjustable coilover kit for the 2002-2006 Mini Cooper and Cooper S (R50 hatchback, R52 convertible). Ride height is set via a friction-optimized polyamide composite spring perch with a stainless-steel insert, with fixed KW-tuned damping specific to this application. Built by hand by KW in Fichtenberg, Germany, and shock-dyno tested before shipping. Galvanized zinc-coated steel struts with elastomer dust protection and a multi-layer sealing package deliver long-term corrosion resistance.
Specifications
| Type | Coilover kit (ST X) |
| Adjustability | Ride height |
| Damping | Fixed (KW-tuned, vehicle-specific) |
| Construction | Galvanized zinc-coated steel struts; polyamide composite spring perch with stainless-steel insert |
| Origin | Made in Germany (built by KW) |
| Part Number | 18220042 |
| Warranty | 5-year limited, unlimited mileage |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2006 | Mini | Cooper | Base |
| 2002-2006 | Mini | Cooper | S |
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
