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PC200300400 678主控阀排肖弹簧

723-46-14131 723-46-14110 Main Control Valve Discharge Spring for PC200-7

Eliminate valve spool lag and ensure precise hydraulic pressure regulation in your 20-to-40-ton excavator's main control valve with our premium brand-new Control Valve Discharge Spring. Engineered as a precision direct drop-in replacement for part numbers 723-46-14131, 723-46-14110, and 723-46-14170, it provides critical elastic return and pressure relief support for the main valve assemblies across PC200, PC300, and PC400 series (-6, -7, and -8 generations).
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PC400 450 7液压泵泵胆弹簧

708-2H-33150 708-2G-15240 Hydraulic Pump Barrel Spring for PC400-7 PC450-7

Eliminate internal pressure bypass and ensure consistent, high-frequency piston return in your 40-to-45-ton heavy excavator's main hydraulic pump with our premium brand-new Pump Barrel Spring (Cylinder Block Spring). Engineered as a precision direct drop-in replacement for part numbers 708-2H-33150 and 708-2G-15240, it provides critical elastic support for the internal rotary groups of PC400, PC400-7, and PC450-7 excavators.
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HPV375凸轮摇臂

HPV375 Hydraulic Pump Tray Assembly Support for PC850-8 PC2000-8

Provide rock-solid structural support and precise internal alignment for your ultra-heavy mining excavator's main hydraulic pump with our premium brand-new Hydraulic Pump Tray Assembly. Engineered as a precision direct replacement for the HPV375 main pump system, it serves as the vital cradle support for PC850-8, PC2000-8, PC3000-6, and PC4000-6 mining giants.
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HPV375托架组件

HPV375 Hydraulic Pump Tray Assembly Support for PC850-8 PC2000-8

Provide rock-solid structural support and precise internal alignment for your ultra-heavy mining excavator's main hydraulic pump with our premium brand-new Hydraulic Pump Tray Assembly. Engineered as a precision direct replacement for the HPV375 main pump system, it serves as the vital cradle support for PC850-8, PC2000-8, PC3000-6, and PC4000-6 mining giants.
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PC3000 6齿轮

708-2K-12690 Hydraulic Pump Big Gear Inclined Wheel for PC3000-6

Eliminate catastrophic gear stripping and ensure flawless rotational power transfer in your 300-ton mining excavator with our premium brand-new Hydraulic Pump Big Gear (Inclined Wheel / Helical Gear). Engineered as a precision direct drop-in replacement for part number 708-2K-12690, it serves as料 the critical transmission link within the main hydraulic pump assembly for PC3000-6 mining excavators.
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PC350 450叶轮

708-2H-32330 Hydraulic Pump Impeller for PC350-7 PC450-7 Excavator

Maximize the suction efficiency of your main hydraulic pump and prevent destructive cavitation in your 35-to-45-ton heavy excavator with our premium brand-new Hydraulic Pump Impeller. Engineered as a precision direct drop-in replacement for part number 708-2H-32330, it serves as the critical fluid intake component for the PC350-7, PC400-7, and PC450-7 series.
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FAQ

Frequently Asked Questions

faq
We have 20 years of experience in the field of hydraulic components for excavators, bulldozers, and transfer machines. Our core advantages lie in our accumulated experience of 20 years focusing on hydraulic systems, hydraulic pipelines, and engine parts, and our familiarity with the adaptation needs and compliance standards of markets in Europe, America, and Southeast Asia; Independent Quality Control: Our own workshop enables full-process control from raw material processing to finished product assembly, avoiding the quality fluctuations of OEM models; Market Validation: Our products have been stably supplied to over 30 regions domestically and internationally, serving over 5000 repair shops and equipment suppliers, with a repurchase rate of 85%.
We are an integrated industrial and trading company specializing in hydraulic components. We have a core team focused on the R&D, production, and global trade of hydraulic system components for excavators, bulldozers, loaders, etc. Please feel free to contact us with any questions.
Providing any of the following information will complete an accurate compatibility check: ① Excavator brand + model + serial number ② Original part number (e.g., the number engraved on the nameplate)
We support compliant payment methods for independent websites, ensuring transaction security: Offline customized payment: For wire transfer (T/T) or Western Union, please contact our dedicated customer service representative to obtain your account information. We will provide payment vouchers simultaneously.
All hydraulic components come with a 6-month full machine warranty, covering performance failures caused by non-human factors (such as seal failure, accuracy deviations, etc.).
Quality control is implemented throughout the entire production chain, achieving "zero non-conforming products leaving the warehouse": A triple inspection mechanism: raw material incoming inspection (such as hardness testing of hydraulic valve materials), and random sampling during production (10% of each batch undergoing pressure testing).
We are happy to provide small-batch trial production services to verify product compatibility. We have flexible production lines capable of efficiently handling multi-variety orders. Once the trial order is successful, we will incorporate your product technical data into our production management system to ensure the quality stability and delivery reliability of subsequent large-scale supplies.
Yes. We have hydraulic system integration capabilities. From schematic design, component selection, valve block design and manufacturing to tank and piping manufacturing and system assembly testing, we can provide one-stop hydraulic power unit or system solutions to help you simplify your supply chain and optimize system performance.
As a source manufacturer, we possess end-to-end control capabilities, from design and R&D, raw material procurement, precision machining to assembly and testing. This allows us to offer more competitive costs and prices, achieve rapid and flexible customized production, and ensure full-process traceability and quality assurance for our products. You are not just buying a product, but acquiring a complete solution based on deep technological understanding.
We implement end-to-end quality control from raw material warehousing to finished product delivery. Key processes include: raw material spectral analysis, coordinate measuring machine (CMM) measurement of core components after CNC machining, cleanliness control during assembly, and final functional and durability testing. Each process has rigorous inspection records.
We would be very happy to welcome such offers. We maintain long-term partnerships with many large domestic and international repair companies and equipment remanufacturing plants. We can offer tiered bulk discounts and provide OEM/ODM manufacturing services tailored to your brand requirements. Please contact our international sales manager directly to discuss specific cooperation frameworks.
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We have our own R&D and production team that supports small batch customization and sample processing related to hydraulic maintenance.
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