China Parts for CAT120(VRD63) Main Pump | Tonkee®

Housing: The main pump's housing encloses and protects the internal components, providing structural integrity and support.

Drive Shaft: This shaft connects the main pump to the engine or motor, transferring the rotational force necessary for pump operation.

Cylinder Block: The cylinder block contains multiple piston cylinders that reciprocate to generate hydraulic pressure.

Pistons: Pistons are fitted within the cylinder block and move back and forth, driven by the rotational motion of the drive shaft.

Valve Plates: Valve plates control the flow of hydraulic fluid within the pump, directing it to the appropriate circuits.

Swash Plate: The swash plate is responsible for adjusting the angle of the pistons, enabling variable displacement and regulating the pump's output flow.

Bearings: Bearings support the rotating components of the pump, reducing friction and ensuring smooth operation.

Seals and O-rings: These components prevent hydraulic fluid leakage and maintain the system's integrity.

Inlet and Outlet Ports: The main pump has designated ports for hydraulic fluid entry (inlet) and exit (outlet), allowing proper connection to the hydraulic system.

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