The Alcon Pro-System 38.1mm nitrile dust seal is a replacement service part intended for brake systems requiring that seal dimension. Made from nitrile material, it helps retain lubrication and keep contaminants out of the assembly. Use as a like-for-like replacement where the Pro-System specification is required and follow proper brake service procedures during installation.
Alcon Pro-System 38.1mm Nitrile Dust Seal