Wilwood O-Ring Kit - 2.50in GM DI54 Square Seal - 4 pk.

If you're rebuilding a Wilwood GM DI54 square seal caliper that measures 2.50 inches across, this O-ring kit is what you'll need to get it back in service. These seals are critical for keeping brake fluid contained within the caliper body and preventing contaminants from entering the system. A properly sealed caliper is essential for consistent braking performance and to avoid leaks that could compromise your braking ability.

This kit includes four O-rings, enough to service two caliper pistons. Wilwood is known for making well-built brake components, and these seals are made to fit precisely within the caliper's square seal groove. When you're putting a caliper back together, making sure these O-rings are seated correctly and not twisted is key to a leak-free rebuild. It's a small part, but it makes a big difference in how your brakes perform.