Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The IC-GT service kit groups four square piston rings in the listed 1.750/1.500-inch inside-diameter combination. The 0.099-inch section belongs to the manufacturer’s assigned pressure-seal specification. It is a mixed-size caliper component that needs the correct larger and smaller service locations identified. Founded in 1977 by Bill Wood, Wilwood Engineering is based in Camarillo, California. Its disc brake systems and components serve motorsport, street-performance and specialized applications. Calipers, brake rotors, master cylinders, valves, fittings and brake lines are among its products, selected according to the complete brake system’s requirements.
Technical Details
- Manufacturer part number: 130-4782
- Service component: Caliper Square Ring Kit
- Seal profile: Square-Ring
- Manufacturer-listed seal inside diameters: 1.750 / 1.500 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
Check the exact IC-GT caliper and its replacement-kit listing before ordering. Compare the full groove profile and keep the rings sorted by size during installation. Determine any additional dust protection, hydraulic sealing or hardware requirements from the caliper’s condition and full parts list rather than the piston-seal pack alone.
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.
