The spring collars on original Bilstein dampers are completely exposed to the elements. Salt, water, road grid, everything will be thrown at them and in the end.. we've seen quite a few corrode and eventually break.

When you're checking the suspension on your car it always makes sense to check the collars, what you don't want to have happening on you is when a collar snaps and that corner of the car drops down while driving!

These are simple yet effective replacement collars, made from anodised aircraft grade aluminium and come with a new snapring to seat the upper collar.

This is for one set / one damper. If you want to replace all collars on your car you would need to buy four sets.