PV4 Brake Proportioning Valve For Disc And Disc Brake Systems, Proportioning And Combination Valve For Classic Trucks And Muscle Cars With Front And Rear Disc Brakes, Helps Prevent Rear Lockup By Powerworks

PV4 Disc/Disc Brake Proportioning Valve for Front and Rear
✔️ Brass PV4 valve with rear 9/16-18 (14.29mm) and front 3/8-24 (9.53mm)

This universal PV4 proportioning valve is designed for disc/disc braking setups on classic trucks and muscle cars. It installs between the master cylinder and brake lines to balance front and rear brake pressure, with 9/16-18 rear (14.29 mm) and dual 3/8-24 front ports (9.53 mm). Master cylinder connections: 1/2-20 (12.70 mm) and 7/16-24 (11.11 mm).

This brass valve helps you tune braking balance in disc/disc systems, preventing rear lockup and improving overall stopping control. It’s built for durability in harsh environments and provides reliable performance across a wide range of classic vehicles. ✅ Brass valve body for durability and corrosion resistance
✅ Five-port design supports rear 9/16-18 and dual front 3/8-24 ports
✅ Master cylinder connections 1/2-20 and 7/16-24 for compatibility
✅ Left, right, or bottom mount options for flexible installation
✅ Pack includes 1 brass PV4 proportioning valve for Disc/Disc system

💡 What is a brake proportioning valve and why would I need a PV4 in a front-disc/rear-disc setup?

A handy device balances brake pressure to prevent rear lockup and improve stability.

- Front-to-rear balance for disc/disc systems - Helps reduce rear wheel lockup under heavy braking - Works with standard fittings: 9/16-18, 1/2-20, 7/16-24, 3/8-24 - Ideal for classic trucks and muscle cars with disc brakes