BRAND NEW Universal 1" Bore 4 Port Master Cylinder with Left Mount Proportioning Valve Kit for Disc Drum applications.

Features:

• 1" bore for strong braking performance
• 4-port master cylinder with 9/16" & 1/2" ports on both sides
• Includes PV2 proportioning valve for proper disc/drum pressure distribution
• Plugs included for unused ports
• Piston adapter allows for manual or power brake applications
• Durable cast iron construction for longevity
• Perfect for GM disc/drum brake conversions!
• Brake Light Warning Switch

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