Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
This four-pack contains the 1.750-inch-ID square piston seals assigned to matching Wilwood calipers. The listed 0.099-inch thickness must agree with the caliper’s groove profile. The kit is documented in the DynaPro and DynaPro Single service tables for their specified 1.75-inch piston configurations. Based in Camarillo, California, Wilwood Engineering was founded by Bill Wood in 1977. The manufacturer produces disc brake systems and components for motorsport, street-performance and specialized applications, with a range covering calipers, brake rotors, master cylinders, valves, fittings and brake lines. Individual components are chosen to suit the complete brake system.
Technical Details
- Manufacturer part number: 130-2655
- Service component: Caliper Square Ring Kit
- Seal profile: Square-Ring
- Manufacturer-listed seal inside diameters: 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
Use the exact caliper and its service table to confirm the kit before ordering. The pack supplies piston rings rather than every rubber component used in a caliper. Check piston and bore condition, crossover seals and any dust protection separately, and determine the required quantity from the actual assembly.
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.
