708-2G-00700 hydraulic pump for Komatsu PC350LC-8 PC350-8 excavator

PC350LC‑8 PC350‑8 Hydraulic Pump for Komatsu Excavator spare parts 708‑2G‑00700 Aftermarket

Product Overview

The PC350LC‑8 and its standard‑track sibling PC350‑8 are among the most heavily worked 35‑ton machines in quarrying and mass earthmoving, and the pump assembly 708‑2G‑00700 is the component that keeps every one of their movements supplied with oil. This tandem housing carries the twin axial piston pumps that split engine output between the implement circuit and the travel/swing circuits, so its condition decides the machine's digging force, travel speed and cycle time all at once. When the unit starts to wear — usually after years of high‑pressure service, contaminated oil or prolonged overload work — the machine gives clear signals: boom and bucket slow down noticeably, travel loses its push on inclines, the hydraulic oil runs hot even in mild weather, and a hollow whine builds from the pump compartment as internal leakage grows. This aftermarket pump assembly is built to the original 708‑2G‑00700 specification, giving owners a direct‑fit replacement that restores full hydraulic output and protects the valves and motors downstream from the damage a failing pump can cause.

Core Advantages

1. Twin‑pump replacement that restores both halves of the system
Because the assembly covers both pump sections in one unit, replacing it renews the implement circuit and the travel circuit together. That is what returns the machine to its original balance of digging power and travel speed — not just a temporary fix on one side.

2. Friction pairs built for sustained high‑pressure service
The swashplate, piston shoes, cylinder block and valve plate are hardened and ground to keep internal leakage low. Lower leakage means cooler oil, steadier pressure and preserved digging force, which is the difference between a machine that produces and one that limps through the day.

3. Control behaviour matched to Komatsu's power management
The regulators follow the original pressure‑flow logic, so the pump works with the machine's own power‑management settings. Operators get smooth, predictable responses across the load range — strong breakout when needed, gentle metering for fine work.

4. A direct‑fit changeover with no system rework
The assembly reproduces the original mounting flange, input spline, port positions and control interfaces. Installation follows the standard service sequence, so the machine can be tested and returned to work without piping modifications or adapter pieces.

5. A solid economic alternative for high‑hour machines
For a PC350 with high operating hours and an otherwise sound engine and undercarriage, renewing the pump assembly is the most cost‑effective way to restore performance — at a fraction of the exchange‑unit price, with sample and batch supply options.

Manufacturing & Quality Control

Every assembly is produced under a traceable process: steel verification, precision machining, controlled heat treatment of wear surfaces and final hydraulic bench testing. Each finished pump is pressure‑tested, flow‑checked and noise‑inspected before release, and only units that pass are packed. Anti‑rust protection, shock‑absorbing packing and export‑standard cases cover long‑distance sea and land freight, and test documentation can be supplied per batch.

Frequently Asked Questions

Q1: How can I confirm 708‑2G‑00700 is the right assembly for my machine?
A: Check the part number plate on your existing pump assembly and your machine's serial number. Different production years can carry different pump variants, so we verify both before dispatch.

Q2: Will the existing regulators and solenoids fit this pump?
A: The assembly matches the original control interfaces, so the existing regulator and solenoid arrangement connects directly. If your old unit has damaged control parts, we can supply replacements separately.

Q3: What should be done to the hydraulic system when fitting this pump?
A: Flush or replace the oil, fit new filters and bleed the circuit after installation. A low‑speed no‑load run‑in before full‑load work protects the new friction surfaces.

Q4: Do you offer a warranty on this assembly?
A: Yes — manufacturing and material defects are covered. Failures caused by contamination, incorrect oil, foreign objects in the circuit or overload operation are excluded, so follow the Komatsu service manual for installation and commissioning.