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Wilwood 2.75in SS cup caliper piston is a replacement piston intended for GM III caliper rebuilds and maintenance. Offered as an individual piston component, the SS cup design supports caliper seal and movement within GM III housings and is suited for use in rebuild kits or targeted repairs. This piston detail aligns with Wilwood caliper rebuild applications where correct sizing and cup-style configuration are required.
Wilwood Piston - 2.75in SS Cup - GM III
