OEM O-Ring Replaces 420581A1 #590171 - OEM Leak Repair Part for Case Construction Equipment Service When replacement is required to fix oil leaks, seepage, contamination entry, and worn sealing lips, this OEM component supports repairs related to oil leaks, dust intrusion, and failed sealing surfaces. Used in repair departments handling oil leak repair, o-ring replacement, and Case equipment gasket service requirements. More Details Part Number: 590171 Application: OEM sealing component for maintenance work involving oil seepage, gasket failure, or leak-related equipment service. 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