Wilwood O-Ring Kit - 1.50in Square Seal - 4 pk.

These 1.50-inch square seal O-ring kits from Wilwood are designed to keep your brake calipers in good working order. The square profile of these seals is important because it helps them maintain a consistent seal against the caliper bore, even under the high pressures and temperatures generated during braking. This helps prevent leaks and ensures your brake fluid stays where it belongs.

When you're rebuilding a brake caliper, replacing these seals is a critical step. They are made from a durable material that can stand up to brake fluid and the stresses of repeated caliper piston movement. This kit comes with four O-rings, which is typically enough to service two calipers, making it a convenient option for a common brake service job.