OEM O-Ring 6 99 X 129 54 #X30358 - OEM Leak Repair Part for Case Construction Equipment Service This OEM part is intended for maintenance replacement in situations involving worn seals, gasket damage, and leak-related equipment service, including symptoms like gasket failure, compression set, fluid leakage, and dirt intrusion. Used in repair departments handling oil leak repair, o-ring replacement, and Case equipment gasket service requirements. More Details Part Number: X30358 Application: Common service application: Seal or gasket replacement used to repair fluid leaks, worn sealing surfaces, contamination entry, and failed OEM sealing points. Key Features: OEM replacement for worn seals, failed gaskets, or damaged sealing points Helps restore fluid containment and protect against contamination entry Direct-fit service part for leak repair and routine maintenance replacement Fits Case Models: Compatible with various Case construction equipment models - verify fitment before ordering Replaces: Refer to manufacturer cross-reference if applicable