708-2G-00700 708-2G-00022 PC350LC-8 PC300LC-8 PC300-8 PC350-8 Hydraulic Main Pump

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Heavy-duty hydraulic main pump assembly (variable displacement axial dual piston pump) designed for Komatsu 30-ton and 35-ton hydraulic excavators. Directly replaces OEM part numbers 708-2G-00700 and 708-2G-00022, delivering stable high-pressure hydraulic flow to the main control valve, boom/arm cylinders, and swing motors.

Engineered to 1:1 OEM installation dimensions. Fully compatible with Komatsu PC300-8, PC350-8, PC300LC-8, PC350LC-8, and PC300LC-7E0 crawler excavators. Features exact mounting flange patterns, pilot pump interfaces, and regulatory control ports for hassle-free drop-in installation.

Supplied as a full functional assembly complete with factory-calibrated pump regulators (control valves), pilot gear pump, and proportional solenoid valves. Eliminates the need for complicated on-site valve assembly and reduces machine downtime.

Constructed with high-strength alloy pump casings, bimetal cylinder blocks, and precision-ground pistons and swash plates. Resists cavitation and micro-leakage even under sustained heavy-load mining and quarry excavation operations.

Each hydraulic main pump undergoes 100% full-load hydraulic test bench verification prior to packing. Flow rate output, operating pressure, relief pressure cut-off, and internal case drain leakage are rigorously measured to meet OEM standards.

Direct factory wholesale supply tailored for heavy equipment repair facilities, hydraulic service centers, and international excavator spare parts distributors. Shipped in heavy-duty wooden crate packaging with anti-corrosion