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The Wilwood caliper O-ring kit provides 1.38 inch square seals in a 4-pack for brake caliper servicing and rebuilds. These replacement seals are intended to restore piston sealing surfaces and help prevent hydraulic leaks during routine maintenance. Use this compact kit when refreshing compatible calipers to preserve consistent braking feel and safe operation after reassembly.
Wilwood O-Ring Kit - 1.38in Square Seal - 4 pk.
