OEM O-Ring Seal Pilot Gear Part Of Equipment Pump Seal Kit P/N 156637A1 #154489A1 - OEM Hydraulic Service Replacement for Heavy Equipment Repair In repair applications, this OEM part replaces worn components associated with repair of pumps, valves, or cylinders with poor actuation or oil bypass and helps address poor actuation, oil bypass, slow movement, and unreliable hydraulic control. A practical OEM option for hydraulic drift repair, oil bypass service, and heavy equipment hydraulic component replacement jobs in the field. More Details Part Number: 154489A1 Application: Hydraulic system replacement component used to repair pressure loss, drift, slow response, internal leakage, or failed actuation. Key Features: Designed to replace failed pumps, valves, cylinders, or hydraulic assemblies Supports repair of drift, slow movement, and reduced hydraulic performance caused by wear OEM-style fit for efficient installation during hydraulic service Fits Case Models: Compatible with various Case construction equipment models - verify fitment before ordering Replaces: Refer to manufacturer cross-reference if applicable