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The Wilwood Thermlock caliper piston, sized 1.25in x 1.05in, is a service replacement component for compatible Wilwood calipers. The Thermlock designation identifies the piston variant; it is intended for use during caliper overhaul or repair where a correct-dimension piston is required. Install as part of a rebuild to restore caliper function with factory-sized components.
Wilwood Piston Thermlock - 1.25in x 1.05in
