Wilwood 2 lb Residual Valve Kit w/ -3 AN Adapters & Hardware
WA01018
This brake system kit features (2) Wilwood 2 lb residual pressure valves, designed to maintain slight pressure in the brake lines to improve pedal feel and response. These valves help prevent fluid drain-back and reduce the amount of pedal travel required to engage the brakes—making them a must-have for custom brake setups, race cars, and off-road builds.
Paired with -3 AN to 1/8" NPT adapters, tube nuts, and sleeves, this kit makes it easy to integrate into your brake system with clean, reliable plumbing. Whether you're building a new system or upgrading an existing one, this complete package provides everything needed for proper installation and consistent braking performance.
Included Items
- (2) Wilwood 2 lb residual pressure valves
- (4) -3 AN to 1/8" NPT straight adapters
- (4) -3 AN tube nuts
- (4) -3 AN tube sleeves
Specifications
- Residual pressure: 2 lb (ideal for disc brake systems)
- Valve type: Inline residual pressure valve
- Adapter size: -3 AN to 1/8" NPT
- Compatible with standard -3 brake lines
- Helps maintain brake line pressure to reduce pedal travel
- Improves brake response and consistency
- Designed for custom and performance brake systems
Fitment
- Ideal for disc brake systems requiring 2 lb residual valves
- Compatible with -3 AN brake line setups
- Common in off-road rigs, race cars, and custom builds
- Suitable for master cylinders mounted below calipers
- Verify system requirements before installation
Tech Insight
Q: What does a residual valve do in a brake system?
A residual valve maintains a small amount of pressure in the brake lines to keep fluid from draining back and to ensure consistent brake response.
Q: When do I need a 2 lb residual valve?
A 2 lb residual valve is typically used in disc brake systems, especially when the master cylinder is mounted lower than the brake calipers.
Q: What happens if I don’t run a residual valve in this setup?
Without a residual valve, brake fluid can drain back due to gravity, leading to increased pedal travel, inconsistent braking, and potential air gaps in the system.
Q: Why use a complete residual valve kit instead of individual parts?
A complete kit includes the correct adapters and hardware, simplifying installation, reducing leak points, and ensuring a clean, reliable brake system layout.