Square O-Ring Kit - 1.75/1.62

The Square O-Ring Kit - 1.75/1.62 from Wilwood is a crucial component for maintaining and restoring high-performance brake systems. This kit is particularly useful for mechanics who service Wilwood calipers and clutch systems, as it addresses the degradation of o-rings over time due to heat, fluid exposure, and pressure cycles.

Featuring a rigid, non-elastic square profile, these o-rings seat firmly in grooves under pressure, making them ideal for dynamic brake applications. The 1.75 and 1.62 diameter specifications ensure a precise fit in the seal grooves, preventing fluid bypass around the piston rod. Wilwood-spec o-rings are manufactured to exacting tolerances and tested for compatibility with DOT-approved brake fluid formulations.

This kit is essential for anyone rebuilding Wilwood single-piston or dual-piston brake calipers or servicing Wilwood clutch throwout bearing assemblies. Proper installation requires caliper disassembly and thorough cleaning of the bore and seal grooves to ensure optimal performance and safety.