OEM Grease 29 Auto Lube System Hydraulic Pump Type #73391501 - OEM Hydraulic Component Replacement for Case Construction Equipment Service replacement of the original part becomes necessary when weak hydraulic response, internal leakage, and pressure-control issues produces internal leakage, pressure drop, hydraulic drift, and weak system response; this OEM component is built for that repair path. Often searched by buyers handling hydraulic drift repair, oil bypass service, and heavy equipment hydraulic component replacement service work. More Details Part Number: 73391501 Application: Primary service use: OEM pump, valve, or cylinder service part for restoring hydraulic control and dependable machine movement during repair work. 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