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shop Original New 390F Hydraulic Main Pump 576-3072 for Excavator Parts 390F Piston Pump

Design: 9–11 hardened steel pistons with a chrome-plated cylinder block for wear resistance . Variable-displacement mechanism: Hydraulic servo pistons adjust the swashplate angle to control flow, reducing energy waste. Materials: Heat-treated alloy steel drive shaft for torsional rigidity. Cast iron housing with internal oil passages for lubrication and cooling (operating temperature: -15°C to 90°C / 5°F to 194°F) .

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shop Original New 390F Hydraulic Main Pump 576-3072 for Excavator Parts 390F Piston Pump

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