Vacuum Clutch / Brake Cylinder Diaphragm

This vacuum clutch or brake cylinder diaphragm is crafted to match the original part, ensuring proper fit and reliable function. Made in the USA with authentic mounting holes, it restores vacuum seal integrity for smooth clutch or brake operation.

Fitment Notes:

• Buick: Vacuum clutch diaphragm for models with vacuum-operated clutch.
• Cadillac: Vacuum brake cylinder diaphragm, replaces factory #881482.
• Packard: Electromatic clutch control diaphragm, replaces factory #394100 to restore clutch operation.

Installation is straightforward—remove the old diaphragm, ensure the mounting surface is clean, then secure the new diaphragm in place using the original mounting holes. This helps maintain proper vacuum pressure and prevents leaks.

Handcrafted and guaranteed to fit vintage Cadillac, Buick, and Packard vehicles from 1930 to 1950.