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Product details
This four-pack contains round piston O-rings for the manufacturer-listed D154 service configuration. The ring dimensions are 2.500-inch inside diameter and 0.139-inch thickness, with compound identified by code 210A. These round seals are distinct from the similarly sized square-ring kit used by other caliper versions. Based in Camarillo, California, Wilwood Engineering was founded by Bill Wood in 1977. The manufacturer produces disc brake systems and components for motorsport, street-performance and specialized applications, with a range covering calipers, brake rotors, master cylinders, valves, fittings and brake lines. Individual components are chosen to suit the complete brake system.
Technical Details
- Manufacturer part number: 130-12084
- Service component: Caliper O-Ring Kit
- Seal profile: O-Ring
- Manufacturer-listed seal inside diameters: 2.500 inches
- Listed seal thickness: 0.139 inch
- Manufacturer material code: 210A
- Pack quantity: 4 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
Match the exact caliper reference and the seal’s round cross-section before fitting the pack. A D154 label or two-and-a-half-inch piston description alone does not establish seal interchangeability. Confirm the groove dimensions and inspect the remaining piston, dust-protection and slide components as separate service items.
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.
