Wilwood Six-Position Lever Proportioning Valve, 1/8 NPT with Inverted-Flare Adapters

The six-position lever gives this proportioning valve repeatable adjustment points for a custom brake circuit. Two supplied adapters connect the 1/8-27 NPT body ports to 3/8-24 inverted-flare tubing nuts, keeping the valve thread distinct from the line connection. Wilwood Engineering's design and manufacturing work covers disc brake systems for specialized applications, street performance and motorsport. Founded by Bill Wood in 1977, the company operates from Camarillo, California. Its component range includes master cylinders, fittings, brake lines, rotors, valves and calipers, each requiring selection in the context of the complete brake system.

Technical Details

• Manufacturer part number: 260-8420
• Material: Aluminum / Steel
• Finish: Clear Anodize
• Maximum pressure reduction: 57%
• Mounting: Two 0.25-inch holes on 1.00-inch centers
• Use: Custom brake-system proportioning, normally in the rear circuit; not a direct OEM replacement
• Pressure connections: Native 1/8-27 NPT inlet and outlet; two 3/8-24 female inverted-flare adapters supplied
• Adjustment: Six-position lever

Fitment & Compatibility

Normally installed in the rear brake circuit, this valve is for tuning custom systems rather than replacing an OEM valve directly. Secure it through its two 1/4-inch body holes; do not remove the lever or end cap to mount it through a panel.

Manufacturer Documents

• Wilwood product specifications
• Wilwood DS489 instructions and specifications
• Wilwood FL162 instructions and specifications

The component must suit the completed installation. PMB Performance draws on over 20 years of experience to help you check the part identification, mating connections and required operating dimensions.