The Seal (OEM Part No. 3128301239) is a replacement part compatible with S10M, Boltec S, S2C, Boomer 291, S7D, Boomer S2, Boltec-S bolting rigs, and S1D/S2 series models. Made from durable rubber or polymer, it is designed for use in hydraulic or pneumatic systems at sealing positions. The seal prevents leaks, maintains system pressure, and protects critical components from contamination. Its wear-resistant construction ensures long-lasting performance under demanding underground mining and tunneling conditions, supporting operational efficiency, hydraulic or pneumatic integrity, and reliable performance of drill feed, actuation, and support systems.