Wilwood Brake Components

Universal Fitment

Part #: 130-4346

Overview

The Wilwood Square O-Ring Kit is a high-quality rebuild kit designed specifically for Wilwood brake calipers with 1.62" piston diameters. This kit includes four precision-engineered O-rings that help maintain optimal hydraulic sealing within your caliper assembly. It is ideal for enthusiasts and professional mechanics seeking to restore or maintain the performance and reliability of Wilwood's high-performance brake systems. Crafted from durable materials, these O-rings are engineered to withstand the rigors of track and street driving, ensuring consistent braking response and longevity.

Designed to support the integrity of your brake calipers, this rebuild kit helps prevent fluid leaks and maintains proper piston movement. Whether you're performing routine maintenance or rebuilding worn calipers, these O-rings provide a reliable seal that contributes to your vehicle’s braking efficiency and safety.

Key Features

This Wilwood O-Ring Kit offers several practical benefits:

• Manufactured from high-grade, heat-resistant rubber compounds for durability
• Precisely molded to fit 1.62" piston calipers for a secure seal
• Helps prevent hydraulic fluid leaks and contamination
• Designed for easy installation and compatibility with Wilwood calipers
• Supports consistent brake pedal feel and response
• Ideal for track-day enthusiasts and daily drivers alike
• Includes four O-rings for complete caliper rebuilds

Construction & Design

The O-rings are crafted from high-performance rubber materials that resist heat, compression, and chemical exposure. Their design ensures a tight, reliable seal within Wilwood's precision-machined caliper housings, helping to maintain optimal hydraulic pressure and caliper function.

Installation & Fitment

Installation involves removing the caliper from the vehicle, disassembling the piston assembly, and replacing the existing O-rings with these new ones. Proper fitment should be verified against the part number and vehicle specifications to ensure compatibility.

What’s Included

This kit includes four O-rings designed specifically for Wilwood 1.62" piston calipers, providing all necessary seals for a complete rebuild.