Racing Power Co. R4514W Universal Residual Check Valve 10 PSI

The Racing Power Company R4514W is a universal residual check valve designed to eliminate spongy brake pedal feel and improve brake response. This 10 PSI valve is specifically engineered for drum brake applications where maintaining proper line pressure is critical for optimal performance.

Key Features:

• 10 PSI residual pressure rating ideal for drum brake systems
• Maintains constant brake line pressure to prevent fluid backflow
• Keeps caliper pistons and wheel cylinders from fully retracting
• Prevents spongy pedal feel and improves brake engagement speed
• Universal fit design works with most drum brake configurations
• Essential for under-floor or low-mounted master cylinder installations

How It Works:

This residual check valve acts as a one-way valve that retains 10 PSI of pressure in the brake lines after the pedal is released. By maintaining this residual pressure, the valve prevents brake fluid from draining back into the master cylinder and keeps the brake system primed without causing brake drag. The 10 PSI rating compensates for drum brake return spring tension, ensuring your wheel cylinder seals stay properly seated and preventing air from being drawn into the system during rapid pedal release.

Installing this valve inline between the master cylinder and drum brake wheel cylinders results in a firmer, more responsive brake pedal with reduced travel distance. Perfect for hot rods, street rods, custom builds, and any vehicle requiring improved drum brake performance.