When it comes to the heavy-duty demands of construction, mining, and earthmoving, the hydraulic system is the very heart of the machinery. Komatsu's PC800-8 and PC850-8 excavators are renowned for their robust performance and reliability, and a significant part of that power comes from their advanced hydraulic pumps. These pumps are precision-engineered to deliver the immense force and fluid control necessary for a wide range of tasks, from trenching and demolition to heavy lifting.
A high-quality hydraulic pump is not just a component; it is a critical investment in the machine's overall efficiency and lifespan. It ensures that the excavator's various attachments—the bucket, arm, and boom—respond with speed and accuracy, maximizing productivity on the job site. Regular maintenance and, when necessary, the replacement of these pumps with genuine or high-quality aftermarket parts are essential to avoid costly downtime and maintain peak operational performance.

The hydraulic pump in a Komatsu PC800-8 or PC850-8 works by converting mechanical energy from the engine into hydraulic energy. It draws hydraulic fluid from the reservoir and pushes it under high pressure through a network of hoses, valves, and cylinders to power the machine's movements. The precision and efficiency of this process are key to the excavator's ability to perform demanding tasks smoothly and consistently.
Identifying the correct hydraulic pump for your Komatsu excavator is crucial for a perfect fit and optimal performance. The following table provides a clear overview of the key hydraulic pump models, including their part numbers, which are compatible with the PC800-8 and PC850-8 series. This information is essential for technicians and owners to ensure they are sourcing the right components for their equipment.
| No. | Product Name | Applicable Machine Model | Part Number | Category |
|---|---|---|---|---|
| 1 | Main Hydraulic Pump | Komatsu PC800-8, PC850-8 | 708-8L-00100 | Hydraulic Main Pump |
| 2 | Kawasaki K3V180 Main Pump | Komatsu PC800-8, PC850-8 | 708-8L-00101 | Hydraulic Main Pump |
| 3 | Travel Pump | Komatsu PC800-8 | 708-8L-00102 | Travel Pump |
| 4 | Main Pump Assembly | Komatsu PC850-8 | 708-8L-00103 | Hydraulic Main Pump |
When a hydraulic pump shows signs of wear—such as decreased performance, unusual noise, or overheating—a timely replacement is necessary. Choosing a reliable supplier for Komatsu PC800-8 and PC850-8 hydraulic pumps is crucial. High-quality replacement pumps, whether OEM or carefully vetted aftermarket options, are manufactured to meet or exceed the original specifications, ensuring a perfect fit and long-term durability.
At Swafly Machinery Co., Limited, we specialize in providing premium hydraulic components for heavy machinery. Our products are rigorously tested to ensure they can withstand the toughest working conditions, helping you maintain the productivity and reliability of your Komatsu excavators.
Investing in a quality hydraulic pump is investing in the future of your equipment.
More News