Round O-Ring Kit 1.375in

The Round O-Ring Kit 1.375in from WILWOOD is an essential component for anyone serious about brake system reliability and performance. This kit is specifically designed for WILWOOD brake calipers and wheel cylinders, making it ideal for mechanics and automotive enthusiasts who prioritize proper sealing in their braking systems.

These seals are critical for maintaining hydraulic integrity and preventing fluid loss. The 1.375-inch diameter specification indicates this kit suits mid-sized brake components commonly found in performance applications. The round profile ensures uniform compression and even load distribution across the seal face, minimizing leak paths while maintaining consistent contact pressure throughout brake system cycles.

Mechanics rebuilding WILWOOD calipers or servicing classic muscle car brake systems will find this kit indispensable for complete overhaul procedures. Proper installation is crucial for achieving optimal performance, and this kit is engineered to withstand hydraulic fluid compatibility across DOT 3, DOT 4, and synthetic brake fluid formulations without degradation.