Wilwood Caliper O-Ring Seal 1.38in Square 4 Pack

Wilwood Caliper O-Ring Seal 1.38in Square (4 Pack) Brand: Wilwood — industry-leading braking components trusted by racers, shops, and performance enthusiasts. Restore leak-free braking with the genuine Wilwood 1.38" square caliper O-ring seal . This 4-pack delivers precise sealing for caliper pistons, preventing fluid loss, contamination, and heat-related deterioration to preserve pedal feel and braking efficiency. Exact fit: 1.38 inch square profile engineered to match Wilwood caliper bore dimensions for reliable OEM fitment. High-performance elastomer: Formulated to resist DOT brake fluid, high temperatures, and abrasion for long service life. Complete 4-pack: Enough seals for one caliper rebuild or convenient spares for maintenance intervals. OEM-style replacement: Simple installation for caliper rebuilds and routine repairs — no machining required. Maintains safety: Restores proper piston sealing to prevent leaks, maintain consistent braking response, and reduce downtime. Perfect for performance cars, track applications, and everyday maintenance, the Wilwood 1.38" square caliper O-ring seal kit is an essential service part to keep your braking system operating at peak performance.