مضخة هيدروليكية Komatsu 708-2G-00024 لـ حفارة Komatsu PC300-7

PC300-7 Hydraulic Pump for Excavator spare parts 708-2G-00024 708-2G-00023 708-2G-00022 Aftermarket

Product Brief

This aftermarket variable axial piston main pump with part numbers 708-2G-00024, 708-2G-00023 and 708-2G-00022 serves as the core hydraulic power unit for Komatsu PC300-7 heavy excavator. It converts engine rotational torque into adjustable high-pressure hydraulic oil flow, delivering power to control bucket excavation, boom lifting, arm movement, upperstructure slewing and track travel. Widely used in large-scale earthmoving, quarry mining, heavy rock loading and large foundation digging projects, this replacement pump is trusted by on-site repair workshops, heavy equipment leasing companies and international spare parts traders for hydraulic system overhaul and replacement of worn pumps on PC300-7 machines.

Long-term heavy-load operation, repeated impact during rock excavation and poor hydraulic oil maintenance will gradually cause cylinder barrel scuffing, piston shoe erosion, valve plate wear and increased internal leakage. Visible failure symptoms include insufficient digging power when tackling hard rock, sluggish combined movements, obvious power drop under peak load, continuous rise of hydraulic oil temperature, abnormal rattling noise from pump housing and slow machine response. Once internal core components suffer severe damage, the whole hydraulic system will lose output capacity, resulting in machine shutdown, costly emergency maintenance and suspended construction schedules.

Our aftermarket hydraulic pump is manufactured strictly following OEM technical drawings. Mounting flange dimension, drive shaft spline profile, oil port layout and regulator pressure preset value all match original specifications. No drilling, cutting or gasket modification is required during field installation. Maintenance technicians can complete pump replacement quickly to minimize machine downtime. Compared with expensive genuine pumps with long procurement lead times, this hydraulic pump maintains stable hydraulic performance and supports bulk repeated orders for merchants specializing in Komatsu heavy excavator hydraulic spare parts.

Product Highlights

1:1 interchangeability for fast heavy excavator hydraulic overhaul
All flange sizes, oil port positions and drive shaft spline parameters fully comply with original standards. Service crews can finish pump swap without secondary machining, greatly improving overhaul efficiency for service centers and used heavy excavator refurbishment projects.

2.Reinforced friction pair to withstand extreme heavy-duty working loads
Many low-cost substitute pumps quickly lose volumetric efficiency when exposed to contaminated hydraulic fluid mixed with rock dust and metal debris. Our core internal friction parts adopt upgraded heat treatment and ultra-precise surface grinding craft, boosting anti-cavitation and anti-wear performance, extending service life for PC300-7 excavators operating in harsh quarry and mining sites.

3.Full bench performance testing before shipment
Each finished hydraulic pump undergoes pressure holding test, flow calibration and noise inspection on dedicated hydraulic test bench before packing. Defective units are filtered out inside factory, lowering rework risks for service teams and avoiding sudden hydraulic breakdown on construction sites.

4.Cost-effective aftermarket option for heavy excavator fleet maintenance
Genuine main pumps for Komatsu PC300-7 carry high purchase cost and unstable stock availability. Our factory-direct replacement pump balances reliable hydraulic output and competitive pricing, helping machine owners and service shops cut total fleet maintenance expenditure.

5.Multiple logistics schemes for bulk purchasers
In-stock products support quick shipment after payment confirmation. Air freight service can be arranged for urgent emergency breakdown orders. Sea consolidation and full-container transport help overseas bulk buyers reduce overall logistics costs.

Factory Production Strength

Our manufacturing plant focuses on R&D and mass production of aftermarket hydraulic spare parts for Komatsu heavy excavators, including axial piston main pumps, pilot pumps and matched hydraulic accessories. We have complete production workflows: alloy steel precision machining, surface heat treatment, component assembly and finished-product hydraulic bench validation. Simulated heavy-load cyclic durability tests are carried out to verify component durability under real mining and large earthmoving operating environments. Our spare parts are exported to multiple overseas markets and maintain long-term stable cooperation with global construction machinery spare part wholesalers.

Frequently Asked Customer Questions
Q1: Can this hydraulic pump fit other Komatsu excavator models?
A1: Cross-model installation is not recommended. Different main pumps differ in shaft spline, displacement and oil port arrangement. Please double-check machine model and original part number before placing orders.

Q2: What hydraulic faults can this main pump solve?
A2: It resolves malfunctions caused by internal component abrasion: insufficient digging power, slow compound movements, high hydraulic oil temperature, internal leakage, abnormal pump noise and weak heavy-load capacity.

Q3: Is tiered volume discount available for large quantity orders?
A3: Yes, preferential pricing depends on purchasing quantity. Full-container sea freight arrangement can be supported to reduce total logistics expense.

Q4: What export-grade packaging is used for long-distance overseas transit?
A4: Anti-rust oil is applied on all precision mating surfaces. The pump is wrapped with waterproof anti-rust film and shock-absorbing foam, then fixed inside reinforced plywood case, protecting precision internal components against collision and rust during long ocean shipping.