Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
This four-piece seal pack contains the mixed 1.380/1.120-inch listed ID combination for the assigned BSL4R and IRGT-4R service applications. The piston rings use a 0.099-inch square section. Both the caliper identity and its groove arrangement are needed to select the correct service pack. 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: 130-7218
- Service component: Caliper Square Ring Kit
- Seal profile: Square-Ring
- Manufacturer-listed seal inside diameters: 1.380 / 1.120 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 caliper’s complete reference and replacement-kit listing rather than relying on the broad family name. Preserve the different ring locations during the repair and compare each groove profile. Evaluate the remaining dust seals, hydraulic joints and mechanical parts separately from the four piston seals supplied here.
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.
