1967–1974 GM Car Drum/Drum Brake Master Cylinder (Manual Brakes) – 1″ Bore

Restore reliable braking performance to your classic GM car with this 1967–1974 drum/drum brake master cylinder, designed for manual (non-power) brake systems. Featuring a 1-inch bore, this OEM-style replacement ensures consistent hydraulic pressure, smooth pedal feel, and long-lasting durability — perfect for restoring factory braking performance on mid- to late-’60s GM vehicles.

Compatibility & Application
✔ Fits 1967–1974 GM cars, including Chevrolet, Pontiac, Oldsmobile, and Buick models
✔ For vehicles with manual drum brakes front and rear
✔ 1″ bore ensures correct hydraulic pressure
✔ Direct replacement for original master cylinder
✔ Ideal for classic restorations, daily drivers, and performance upgrades

Product Features & Benefits

• OEM-Style Fit & Function – Direct bolt-on replacement

• Precision 1″ Bore – Maintains proper pedal feel and braking performance

• Durable Cast Iron Construction – Long-lasting and corrosion-resistant

• Bench-Tested for Reliability – Leak-free and ready to install

• Restores Factory Braking Performance – Perfect for classic GM restorations

Why Buy From Customville American?
We supply authentic GM brake components in the UK, offering fast delivery and trusted expertise for classic American car enthusiasts and restorers.