This O-ring seals the fluid reservoir or the remote inlet fitting to the master cylinder inlet neck on the Tilton 74- and 75-series master cylinders. One O-ring is included with our Tilton 74-Series and 75-Series Master Cylinder Kits (Part No. 3505 and 3506). Sold individually.
This is not the same as the O-Ring for Tilton Remote Reservoir Mounting Bracket, Part No. 3578.