Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The GNIII kit contains six square piston seals for the listed 1.750/1.380/1.380-inch arrangement. It combines larger and smaller ring IDs in a single manufacturer-assigned service pack. The square-ring section is 0.099 inch, so profile and caliper reference must be checked along with diameter. Founded in 1977 by Bill Wood, Wilwood Engineering is based in Camarillo, California. Its disc brake systems and components serve motorsport, street-performance and specialized applications. Calipers, brake rotors, master cylinders, valves, fittings and brake lines are among its products, selected according to the complete brake system’s requirements.
Technical Details
- Manufacturer part number: 130-3084
- Service component: Caliper Square Ring Kit
- Seal profile: Square-Ring
- Manufacturer-listed seal inside diameters: 1.750 / 1.380 / 1.380 inches
- Listed seal thickness: 0.099 inch
- Manufacturer material code: 210M
- Pack quantity: 6 Pack
- Seal fluid compatibility: DOT 3, DOT 4 and DOT 5 as specified for these seals. Follow the complete caliper and vehicle fluid requirements; do not mix silicone DOT 5 with DOT 3, DOT 4 or DOT 5.1.
Fitment & Compatibility
Confirm the GNIII caliper version and service kit before ordering. Preserve the larger and smaller locations through disassembly and compare each groove with the replacement ring. The kit’s six seals do not establish the condition or inclusion of separate dust protection, crossover joints, pistons or service hardware.
For help identifying the correct brake component, provide the caliper markings and installation dimensions. PMB Performance has over 20 years of experience with parts and brake-system details.
