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The StopTech 28 mm piston seal is a direct replacement seal for caliper pistons, offered to support brake caliper rebuilds and maintenance. Sized specifically at 28 mm, this OEM-style replacement component restores the hydraulic seal between piston and bore and is intended for use whenever a worn or damaged piston seal is identified during brake service or caliper overhaul.
StopTech Replacement 28mm Piston Seal
