This Bilstein tapered spring hardware kit with a 3.75-inch inner diameter is supplied as a direct replacement service part for use with Bilstein shock assemblies. Manufactured to OE standards, the kit includes support bearings and components to ensure correct spring mounting and function. It’s intended to help technicians restore proper spring geometry and ride characteristics when servicing Bilstein-equipped vehicles.
Bilstein Replacement Component - Spring Hardware Tapered - 3.75in ID