Keeps your various running the way it should — this BILSTEIN part restores the original function of a worn or failed Suspension Spring BILSTEIN OE Ref A, built to OEM reference 4153210604 rather than a generic approximation.
BILSTEIN identifies it as 37-332556, EAN: 4025258924171. Match that against OEM 4153210604 or your old part before fitting, particularly if your vehicle's had any running changes across its production years.
Confirmed for selected various vehicles. Use the vehicle registration lookup tool if you're not certain, or browse Suspension for other options.