Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The D8-6 square-seal pack contains six pieces for a mixed-size piston-seal arrangement. The listed inside-diameter positions are 1.880, 1.380 and 1.250 inches, all using the stated 0.099-inch section. This combination is specific to the manufacturer’s assigned caliper service application. Bill Wood founded Wilwood Engineering in 1977; the company is based in Camarillo, California. Wilwood designs and manufactures disc brake systems and components, from calipers and brake rotors to master cylinders, valves, fittings and brake lines, for motorsport, street-performance and specialized applications; selection depends on the complete brake system.
Technical Details
- Manufacturer part number: 130-11939
- Service component: Caliper Square Ring Kit
- Seal profile: Square-Ring
- Manufacturer-listed seal inside diameters: 1.880 / 1.380 / 1.250 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
Verify the exact D8-6 caliper and service-kit reference, then keep the three seal sizes identified through the repair. Diameter alone cannot confirm groove profile or the correct piston location. Determine any additional rubber components and service hardware from the complete caliper parts list rather than assuming they are included.
PMB Performance brings over 20 years of brake and parts experience to selection questions. Send the existing caliper reference and brake-package details for help checking compatibility.
