The Doosan S8012300 is a genuine NBR (Nitrile Butadiene Rubber) O-Ring, precisely engineered for sealing applications in a wide range of Doosan heavy equipment, including various DX series excavators. Featuring an inner diameter of 100 mm, an outer diameter of 110 mm, and a thickness of 5 mm, this O-Ring ensures a robust and leak-proof seal, critical for maintaining the integrity of hydraulic and fluid systems under demanding operational conditions. Made from durable NBR material, it offers excellent resistance to oils, fuels, and other chemicals, providing long-lasting performance and reliability.