Wilwood 130-5100 Square O-Ring Brake Caliper Rebuild Kit for 1.88 and 1.62 in. Pistons

Restore reliable brake caliper performance with the Wilwood 130-5100 Square O-Ring Brake Caliper Rebuild Kit. Designed for compatible Wilwood calipers using 1.88-inch or 1.62-inch pistons, this kit includes the essential square piston seals and rubber components needed for a proper caliper rebuild. Replacing worn or damaged seals helps support consistent piston movement, fluid retention, and dependable hydraulic braking performance.
The Wilwood 130-5100 kit is a practical choice for brake maintenance, refurbishment, and race vehicle service applications where caliper condition is critical. Its application-specific design helps provide a proper fit when matched with the correct Wilwood caliper and piston configuration. Always verify caliper compatibility and piston size before installation to ensure the replacement components are appropriate for your braking system.
Built by Wilwood, a trusted manufacturer of high-performance braking components, this square O-ring kit supports professional-quality caliper servicing. Use it during a complete rebuild or as part of preventative maintenance when seals show signs of wear, leakage, hardening, or damage. Proper installation with clean components and compatible brake fluid can help preserve seal life and braking system performance.

Features:

• Brand: Wilwood

• Part Number: 130-5100

• Product Type: Square O-ring brake caliper rebuild kit

• Compatibility: Designed for compatible Wilwood calipers with 1.88-inch or 1.62-inch pistons

• Components: Includes piston O-rings and rubber seal components for caliper rebuilding

• Application: Brake caliper maintenance, repair, and refurbishment

• Service Benefit: Helps restore proper piston sealing and reliable hydraulic brake performance

• Installation Note: Verify caliper model and piston size before installation