The Wilwood O-ring kit includes four square-section seals in 1.38 and 1.12-inch sizes for caliper rebuild and service use. Supplied as a four-pack, these seals correspond to the square-profile dimensions specified by Wilwood and are intended to replace worn or damaged seals during caliper maintenance on compatible models.
Wilwood O-Ring Kit - 1.38/1.12in Square Seal - 4 pk.