Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The GT square-ring pack supplies four piston seals for the listed 1.880/1.750-inch inside-diameter arrangement. It combines two seal sizes in a defined service kit with the 0.099-inch square section. The GT family designation still requires the exact caliper and assigned seal pack to be identified. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company makes disc brake systems and components for motorsport, street-performance and specialized uses, including calipers, brake rotors, master cylinders, valves, fittings and brake lines; each component must match the requirements of the complete brake system.
Technical Details
- Manufacturer part number: 130-2427
- Service component: Caliper Square Ring Kit
- Seal profile: Square-Ring
- Manufacturer-listed seal inside diameters: 1.880 / 1.750 inches
- Listed seal thickness: 0.099 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
Compare the caliper’s service listing with this kit before removing the old rings. Preserve the intended larger and smaller locations and confirm the groove dimensions. Check the remaining piston, bore and dust-protection components independently, and determine the needed pack quantity from the actual repair rather than an assumed axle set.
PMB Performance has over 20 years of experience helping customers with brake and parts fitment. Share the installed component identification and relevant measurements when requesting assistance.
