Hydraulic Main Pump 153-8181 153-8179 10R-0529 for E5110B Large Mining Excavator

This hydraulic main pump (part numbers 153-8181, 153-8179, 10R-0529) is the primary hydraulic power unit specifically engineered for the E5110B excavator hydraulic system. It delivers high-pressure hydraulic oil to drive the boom, arm, bucket, travel, and swing assemblies.

Featuring a variable piston structure, precise flow control, wear-resistant alloy materials, and precision machining, this pump offers direct replacement installation and stable output performance for demanding heavy-duty mining and construction applications.

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

• Confirm the part number and machine serial number before placing your order
• Verify spline specification, mounting dimensions, and control type
• Request strict pressure and performance testing prior to shipment
• Shockproof wooden packaging is used to prevent transit damage
• Quality warranty covers manufacturing defects