Wilwood GS Master Cylinder Reservoir Inlet Adapter, 7/16-20 to 1/4-Inch Hose Barb

This black aluminum adapter accepts a 1/4-inch reservoir feed hose at the Wilwood GS master cylinder inlet. Its barbed end retains the low-pressure supply hose while the threaded end attaches to the specified cylinder. Established in 1977 by Bill Wood, Camarillo, California-based Wilwood Engineering designs and manufactures disc brake systems. Its master cylinders, calipers, brake rotors, lines, fittings and valves support motorsport, street-performance and specialized applications, with each component selected for its role in the complete brake system.

Technical Details

• Manufacturer part number: 220-17914
• Component: Master cylinder or reservoir fitting
• Line or fitting size: 1/4"
• Connection specification: 7/16-20 to 1/4 Hose
• Package quantity: 1
• Listed weight: 0.050 lb

Fitment & Compatibility

Verify the GS inlet's 7/16-20 thread and required sealing arrangement. This is a reservoir-feed connection, not a pressurized caliper hose adapter; use brake-fluid-compatible hose of the stated size.

Manufacturer Documents

• Wilwood product specifications
• Wilwood flexline fitting guide

For a fitment check, give PMB Performance the vehicle year, brake configuration and details of both mating connections. Our team brings more than 20 years of parts and brake-system experience to the comparison.