Wilwood O-Ring Seal Kit GP200/300/310/320/340 Square Seal 4-Pack

Wilwood O-Ring Seal Kit — GP200/300/310/320/340 (Square Seal) — 4-Pack Restore leak-free braking performance with genuine Wilwood seals. This OEM-style O-ring seal kit is crafted for Wilwood GP200, GP300, GP310, GP320 and GP340 calipers. Each kit contains four precision square-section seals engineered for reliable piston sealing and long-term durability under street and performance use. Fits: Wilwood GP200 / GP300 / GP310 / GP320 / GP340 caliper models Contents: 4 × square-section O-rings — complete seal set for one caliper Material: High-grade elastomer resistant to heat, brake fluid and abrasion Benefits: Prevents fluid leaks, restores piston fitment, reduces fade and extends caliper life This kit is ideal for routine maintenance, full caliper rebuilds, track service, or preventative care. Using genuine Wilwood seals ensures correct fitment, consistent pedal feel, and reliable braking performance under demanding conditions. Installation tips: Inspect pistons and bores for scoring or corrosion; clean thoroughly. Lightly lubricate seals with fresh DOT-compatible brake fluid and install carefully to avoid twisting. Replace seals anytime you rebuild or overhaul the caliper.