The Oil Seal (OEM Part No. 5534563400) is an NBR rubber replacement sealing component designed to prevent oil leakage and protect rotating shaft assemblies. It is compatible with ST3.5 and MT-2010 underground mining equipment. The 5534563400 Oil Seal helps retain lubricating oil within the mechanical assembly while preventing dust, dirt, and other contaminants from entering critical components. Its NBR rubber construction provides suitable sealing performance for demanding mechanical applications. As an aftermarket replacement part, it is suitable for routine maintenance and repair when existing seals become worn or damaged. The 5534563400 Oil Seal helps maintain effective lubrication, reduce leakage, and support reliable operation of shaft and rotating assemblies.