The Wilwood O-ring kit includes eight 1.50-inch x .099-inch square-section seals sized for brake caliper rebuilds. These square seals replace worn caliper seals during maintenance to restore piston sealing and fluid retention. Sold as an 8-piece pack, the kit matches specific Wilwood caliper dimensions; confirm caliper model compatibility before ordering to ensure proper sealing fit.
Wilwood O-Ring Kit - 1.50in x .099in Square Seal - 8 pk