Wilwood 170-8883 Brake Proportioning Valve Adjustable Universal 1/8 NPT

Vehicle Fitment

• Universal Fit (Custom or performance brake systems requiring adjustable proportioning)

Fitment Notes

• Adjustable brake proportioning valve for front/rear bias tuning
• Requires proper line connections and mounting verification
• Commonly used in hot rods, restomods, race cars, and drag vehicles
• Not a direct OEM replacement; installation requires custom adaptation

Features

• Adjustable brake bias for front/rear brake circuits
• 1/8 NPT inlet/outlet ports for universal brake line connection
• Compact design for easy installation in tight engine bays
• Durable billet aluminum construction
• Black anodized finish for corrosion resistance
• Precision-machined internal components for consistent pressure modulation
• Lightweight design suitable for performance and racing applications
• Allows fine-tuning of brake system balance for optimal stopping power

Specifications

• Part Number: 170-8883
• Type: Adjustable Brake Proportioning Valve
• Material: Billet Aluminum
• Finish: Black anodized
• Port Size: 1/8 NPT (inlet/outlet)
• Adjustable Range: Full manual bias adjustment (0-100%)
• Application: Universal, custom front/rear brake systems
• Position: Inline (firewall or chassis-mounted)

Included Components

• 1x Adjustable brake proportioning valve
• 1x Mounting bracket
• 1x Hardware kit

Product Description

The Wilwood 170-8883 Adjustable Brake Proportioning Valve is designed for custom and performance brake systems, allowing precise tuning of front-to-rear brake bias. Constructed from durable billet aluminum with a black anodized finish, this compact valve provides reliable and consistent modulation of hydraulic pressure for optimal braking performance in street, race, or track vehicles.

Featuring 1/8 NPT inlet and outlet ports, the valve can be integrated into nearly any custom brake line setup. The internal mechanism is precision-machined to maintain consistent pressure under heavy braking, while the adjustable design allows fine-tuning to match vehicle weight, brake size, and driving style. This valve is a popular choice among hot rod, drag, and motorsport builders seeking improved control and stopping power without compromising system reliability.