Wilwood 130-4955 - Caliper O-Ring Kit - 2.75" GM

Wilwood 130-4955 – Caliper O-Ring Kit | 2.75" GM Piston

The Wilwood 130-4955 Caliper O-Ring Kit is a replacement piston seal kit designed for Wilwood calipers using 2.75" GM-style pistons. These O-ring seals provide reliable sealing while allowing free, consistent piston movement, helping maintain proper brake function under race conditions.

Manufactured from 210A material, these O-rings are engineered to withstand high temperatures and brake fluid exposure commonly found in racing applications. Routine caliper maintenance with fresh seals helps prevent leaks, ensure positive piston return, and extend caliper service life.

Features & Benefits

• O-ring seal design – Maintains proper hydraulic sealing
• 210A material – Built for high-temperature racing brake environments
• Direct replacement fit – For Wilwood calipers with 2.75" GM pistons
• Service-friendly kit – Ideal for periodic maintenance and rebuilds
• Wilwood OEM quality – Precision manufactured for consistent performance

Product Specifications

• Part Number: 130-4955
• Seal Type: O-Ring
• Material: 210A
• Quantity: 4 seals
• Piston Size Supported: 2.75"
• Seal Thickness: 0.139"