Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
This four-pack supplies round piston O-rings for the assigned 2.75-inch GM Metric caliper service arrangement. The listed seal dimensions are 2.750-inch ID and 0.139-inch section, with compound code 210A. Wilwood’s FL176 service table identifies the kit for the corresponding iron GM Metric calipers. 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: 130-4955
- Service component: Caliper O-Ring Kit
- Seal profile: O-Ring
- Manufacturer-listed seal inside diameters: 2.750 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
Verify the exact caliper reference and round groove profile before choosing the pack. A square ring of similar nominal diameter is a different service component. Inspect the piston, hydraulic bore and slide-pin hardware during repair, and establish the number of seals needed from the actual assembly.
With over 20 years of parts experience, PMB Performance can help compare this component with your existing brake assembly. Include its caliper reference and any conversion-kit information.
