Tech 3 Master Cylinder Lid Diaphragm

The master cylinder diaphragm for the Hope Tech 3 Lever (2014+) is a genuine replacement service component designed to maintain optimal performance in your Hope hydraulic brake system. Positioned inside the Tech 3 brake lever’s master cylinder, this flexible diaphragm helps seal the brake fluid reservoir, accommodate pressure changes and prevent contamination or fluid loss — ensuring consistent lever feel and reliable braking power.

Made to Hope’s standards, this diaphragm is the ideal part for routine maintenance or when rebuilding a Tech 3 lever to restore proper operation and prolong service life.

Features:

• Genuine Hope replacement master cylinder diaphragm
• Specifically for Tech 3 levers (2014 and later)
• Seals the brake fluid reservoir and aids pressure balance
• Helps prevent contamination and fluid leakage
• Essential for lever servicing and rebuilds
• Sold individually
• Hope Part No. HBSP309