Lid Diaphragm Tandem Master Cylinder

The Lid Diaphragm Tandem Master Cylinder from WILWOOD is a crucial component for high-performance braking systems, ideal for custom vehicles, race cars, and heavily modified street machines. This OEM-quality replacement part plays a vital role in ensuring that brake fluid pressure is evenly distributed across dual-circuit master cylinders, enhancing both performance and safety.

Designed to function as a dynamic seal within the tandem master cylinder, this diaphragm controls fluid intake and prevents external contamination while maintaining consistent pressure between primary and secondary circuits. WILWOOD's engineering ensures that the diaphragm material is resistant to thermal degradation and compatible with various brake fluid chemistries, making it suitable for high-heat applications where heavy braking is common.

Professional mechanics, restoration shops, and performance enthusiasts rely on this diaphragm for its reliability and durability. Whether restoring a classic hot rod or upgrading a race-focused build, this precision-machined component meets OEM fitment standards and integrates seamlessly into tight engine bays and custom installations.