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This Wilwood caliper piston spring (.37/.72 OD x 1.00 LG) is a direct replacement hardware piece for compatible Wilwood calipers. It supplies the internal spring tension needed for proper piston return and pad spacing, supporting consistent braking operation. Offered as a single OEM-style component, it's intended for brake maintenance or rebuilds using Wilwood caliper assemblies that accept this spring dimension.
Wilwood Caliper Piston Spring .37/.72 ODx1.00 LG
