Swing Motor Assembly 572-6216 522-6900 522-6899 for E350GC Excavator

This swing motor assembly (part numbers 572-6216, 522-6900, and 522-6899) is the hydraulic drive unit specifically engineered for the E350GC excavator swing system. It converts hydraulic pressure into torque to drive rotation of the upper structure. Built with a high-torque piston design, precision sealing, wear-resistant alloy materials, and precision machining, it offers direct replacement installation and stable output performance for heavy-duty mining and construction applications.

• Internal piston and valve plate wear, causing pressure drop and weak swing torque
• Internal seal failure resulting in hydraulic oil leakage
• Abnormal noise and vibration during swing operation
• Brake piston stuck, leading to swing brake failure
• Housing cracks caused by overload and impact load

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