Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
This GM service pack contains four square-section piston seals with a 2.380-inch listed ID. Their 0.134-inch thickness and square profile distinguish them from the round O-rings offered under a similar diameter designation. The matching caliper service reference is essential to selecting the correct ring. 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: 130-2659
- Service component: Caliper Square Ring Kit
- Seal profile: Square-Ring
- Manufacturer-listed seal inside diameters: 2.380 inches
- Listed seal thickness: 0.134 inch
- Manufacturer material code: 210M
- 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
Check the installed caliper and its groove shape before ordering the four-pack. Do not substitute the round 2.380-inch kit using diameter alone. Inspect piston and bore surfaces and identify any separate boots, slide components or other seals needed from the full caliper parts list.
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.
