Quality Parts for Your Komatsu Machine

Our commitment to quality ensures that every part we sell, from Komatsu hydraulic pumps to high-pressure oil pumps, is built for durability and reliable performance. The 708-31-11512 and 708-3M-00021 models are designed to seamlessly fit the Komatsu PC160-7 excavator, providing the necessary pressure and flow for your machine's demanding tasks. These essential components are key for maintaining your excavator's hydraulic system and avoiding costly downtime.

We understand the importance of finding the right fit, which is why we provide accurate part numbers like PC160-7 708-31-11512 and 708-3M-00021. For applications requiring a specialized pump, our 1G-11112 high-pressure pump provides the necessary performance. Our range of Komatsu excavator spare parts ensures you're ready for any repair or maintenance job.

Common Parts Explained

• Main Pump (主泵): This component is the primary pump in the hydraulic system, generating the high-pressure fluid flow needed to power the machine's attachments and movements. It is typically located near the engine. A key example is the main pump on a Sandvik Ranger DX800 drilling rig.

• Drive Shaft (传动轴): A rotating shaft that transmits torque and rotation, used to connect other components of a drive train that cannot be connected directly. It is part of the driveline. For example, the drive shaft on an Atlas Copco ROC F9 rock drill.

• Steering Cylinder (转向油缸): A hydraulic cylinder used to control the steering of the machine by converting hydraulic energy into linear motion. It is located in the steering linkage. A good example is the steering cylinder on an Epiroc Smartroc D65 drilling rig.

• Main Control Valve (主控制阀): Controls the flow of hydraulic fluid to the different actuators (cylinders, motors) of the machine. It is typically located in the machine's central hydraulic circuit.

• Final Drive (终传动): The last gear reduction unit in a drive system that transmits power to the wheels or tracks. It is located at the hub of the track or wheel.

• Swing Motor (回转马达): A hydraulic motor that controls the rotation of the upper structure (cab and boom) of an excavator. It is located in the swing mechanism.

• Pilot Pump (先导泵): A smaller pump used to supply low-pressure hydraulic fluid for the control system of the main control valve. It is often attached to the main pump.

• Radiator (散热器): A heat exchanger used to cool the engine coolant. It is located at the front of the engine compartment.

• Travel Motor (行走马达): A hydraulic motor that provides power for the machine's movement, driving the tracks or wheels. It is located at the end of the final drive.

• Track Adjuster (张紧装置): A component that uses hydraulic pressure to adjust the tension of the track chain on a tracked machine. It is located at the front of the track frame.