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Product details
This O-ring seals the front hub cap on Starlite 55 and XD hubs and also serves matching O-ring-grooved drive flanges. It belongs to the hub assembly, not the caliper hydraulic circuit, and Wilwood explicitly prohibits use with brake fluid. Wilwood Engineering's disc brake range encompasses calipers, rotors, master cylinders, valves, fittings and brake lines. Founded in 1977 by Bill Wood, the Camarillo, California company designs and manufactures these systems and components for motorsport, street-performance and specialized applications, treating each part as a selection within a complete brake system.
Technical Details
- Manufacturer part number: 211-6950
- Seal form: O-Ring
- Material: Wilwood 211B compound
- Cross-section: 0.139 in
- Package: One component
- Inside diameter requires confirmation: detail field 0.859 inch; ordering description 2.859 inches.
- Application: Starlite 55/XD front hub caps and matching grooved drive flanges.
- Restriction: not for use with brake fluid.
Fitment & Compatibility
Confirm the groove and ring dimensions before purchase. Wilwood's detail page gives a 0.859-inch inside diameter, while its ordering description specifies 2.859 inches; the listed cross-section is 0.139 inch. Have the manufacturer resolve that diameter difference for the intended hub.
Wilwood product specifications
For help matching the service part to your brake assembly, contact PMB Performance with its identification and dimensions. Our team draws on over 20 years of experience.
