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Product details
This Wilwood adapter provides an inverted-flare tube connection at the GS compact master cylinder outlet. The external 3/8-24 cylinder thread is distinct from the female seat that accepts the brake tube's flare nut. The manufacturer is Wilwood Engineering, established by Bill Wood in 1977 and based in Camarillo, California. Wilwood designs and manufactures disc brake systems for motorsport, street-performance and specialized applications, supplying calipers, brake rotors, master cylinders, valves, fittings and brake lines whose selection must suit the complete brake system.
Technical Details
- Manufacturer part number: 220-3407
- Component: Master cylinder or reservoir fitting
- Connection specification: 3/8-24 inverted flare to 3/8-24
- Package quantity: 1
Fitment & Compatibility
Match the exact cylinder outlet and its approved sealing arrangement; Wilwood describes either a crush washer or a 37-degree seat depending on the application. The tube is nominally 3/16 inch and the detail table specifies a 3/8-24 inverted-flare connection, not a 3/16-inch thread.
Manufacturer Documents
PMB Performance draws on over 20 years of brake and parts experience. Clear photographs of the connections and the installed brake package are useful when confirming this component.
