Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
This six-piece square-ring pack supplies the listed 1.380/1.120/1.120-inch inside-diameter arrangement for caliper piston service. Each ring uses the 0.099-inch thickness entry. The pack’s mixed sizes should be matched to the exact caliper service specification rather than inferred from a broad Superlite family name. 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: 130-12488
- Service component: Caliper Square Ring Kit
- Seal profile: Square-Ring
- Manufacturer-listed seal inside diameters: 1.380 / 1.120 / 1.120 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
Check the caliper identification and the manufacturer-assigned service kit before ordering. Preserve the position of the larger and smaller seals during the repair, and confirm the groove profile at every location. The supplied piston seals do not establish how many other dust seals, crossover rings or hardware pieces the caliper may require.
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.
