Hydraulic Main Pump 295-9663 434-8189 2964670 for E349D 345D Excavator

This hydraulic main pump, with part numbers 295-9663, 434-8189, and 2964670, is the primary hydraulic power unit specially designed for the hydraulic systems of E349D and 345D excavators. It supplies high-pressure hydraulic oil to drive the boom, arm, bucket, travelling, and swing mechanisms.

The pump adopts a variable piston structure with precise flow control, wear-resistant alloy materials, and precision machining. It is designed for direct replacement installation and delivers stable output performance under heavy-duty mining and construction working conditions.

• Internal piston and valve plate wear, causing pressure drop and weak action
• Internal seal failure resulting in hydraulic oil leakage
• Abnormal noise and vibration during operation
• Servo piston stuck, leading to flow adjustment failure
• Housing cracks caused by overload and high pressure

• Confirm the part number and machine serial number before ordering
• Check spline specification, mounting dimensions, and control type
• Request strict pressure and performance testing before shipment
• Shockproof wooden packaging to prevent transit damage
• Quality warranty covering manufacturing defects