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708-2K-03560 Hydraulic Main Overflow Valve for PC850-8 PC2000-8 Excavator 708-2K-03560 Hydraulic Main Overflow Valve for PC850-8 PC2000-8 Excavator
708-2K-03560 Hydraulic Main Overflow Valve for PC850-8 PC2000-8 Excavator

Protect your heavy mining equipment's main hydraulic pump with our premium brand-new Main Overflow Valve. Engineered as a direct drop-in replacement for part number 708-2K-03560, it ensures flawless pressure regulation and prevents catastrophic system over-pressurization in extreme mining and quarry conditions.

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723-40-93600 Hydraulic Main Overflow Valve for PC200-8 PC220-8 Excavator 723-40-93600 Hydraulic Main Overflow Valve for PC200-8 PC220-8 Excavator
723-40-93600 Hydraulic Main Overflow Valve for PC200-8 PC220-8 Excavator

Restore your excavator's maximum digging force and protect the main pump with our premium brand-new Main Overflow Valve (Relief Valve). Engineered to integrate flawlessly into your -8 series Main Control Valve (replacing part 723-40-93600), it ensures precise maximum system pressure regulation.

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723-40-56302 Hydraulic Unloading Valve for PC200-6 PC220-6 Excavator 723-40-56302 Hydraulic Unloading Valve for PC200-6 PC220-6 Excavator
723-40-56302 Hydraulic Unloading Valve for PC200-6 PC220-6 Excavator

Eliminate excess hydraulic heat and engine strain on your classic mid-sized excavator with our premium brand-new Unloading Valve. Engineered to integrate flawlessly into your -5 and -6 series Main Control Valve (replacing part 723-40-56302), it ensures efficient pump flow diversion to the tank when your joysticks are in the neutral position.

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723-40-60101 Hydraulic LS Selector Valve for PC200-6 PC220-6 Excavator 723-40-60101 Hydraulic LS Selector Valve for PC200-6 PC220-6 Excavator
723-40-60101 Hydraulic LS Selector Valve for PC200-6 PC220-6 Excavator

Eliminate sluggish joystick feedback and restore perfect hydraulic signal processing with our premium brand-new LS (Load Sensing) Selector Valve. Engineered to replace part 723-40-60101, it ensures accurate pressure signal transmission for smooth, predictable operation in your classic -6 series mid-sized excavators.

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723-40-60101 Hydraulic LS Selector Valve for PC200-6 PC220-6 Excavator 723-40-60101 Hydraulic LS Selector Valve for PC200-6 PC220-6 Excavator
723-40-60101 Hydraulic LS Selector Valve for PC200-6 PC220-6 Excavator

Eliminate sluggish joystick feedback and restore perfect hydraulic signal processing with our premium brand-new LS (Load Sensing) Selector Valve. Engineered to replace part 723-40-60101, it ensures accurate pressure signal transmission for smooth, predictable operation in your classic -6 series mid-sized excavators.

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723-30-56100 Hydraulic Unloading Valve for PC120-6 PC130-7 Excavator 723-30-56100 Hydraulic Unloading Valve for PC120-6 PC130-7 Excavator
723-30-56100 Hydraulic Unloading Valve for PC120-6 PC130-7 Excavator

Eliminate excess hydraulic heat and engine strain with our premium brand-new Unloading Valve. Engineered to integrate flawlessly into your excavator's Main Control Valve (replacing part 723-30-56100), it ensures efficient pump flow diversion to the tank when your joysticks are in the neutral position.

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708-2K-03560 Hydraulic Main Overflow Valve for PC850-8 PC2000-8 Excavator 708-2K-03560 Hydraulic Main Overflow Valve for PC850-8 PC2000-8 Excavator
708-2K-03560 Hydraulic Main Overflow Valve for PC850-8 PC2000-8 Excavator

Protect your heavy mining equipment's main hydraulic pump with our premium brand-new Main Overflow Valve. Engineered as a direct drop-in replacement for part number 708-2K-03560, it ensures flawless pressure regulation and prevents catastrophic system over-pressurization in extreme mining conditions.

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708-2L-00643 PC Valve Servo Piston Assembly for PC210-8K PC240-8 708-2L-00643 PC Valve Servo Piston Assembly for PC210-8K PC240-8
708-2L-00643 PC Valve Servo Piston Assembly for PC210-8K PC240-8

Restore your heavy excavator's hydraulic efficiency instantly with our premium brand-new PC Valve Servo Piston Assembly. Engineered as a complete, direct drop-in replacement module for part number 708-2L-00643, it resolves sluggish controls and engine bogging without the need for piecemeal repairs.

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708-7L-00070 Hydraulic Steering Motor for D65PX-16 Bulldozer 708-7L-00070 Hydraulic Steering Motor for D65PX-16 Bulldozer
708-7L-00070 Hydraulic Steering Motor for D65PX-16 Bulldozer

Support the precise maneuverability and responsive directional control of your 20-ton class medium bulldozers with our new 708-7L-00070 Hydraulic Steering Motor. Designed to effectively power the hydrostatic steering systems (HSS) in demanding grading and earthmoving environments.

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708-2K-03560 Hydraulic Main Overflow Valve for PC850-8 PC2000-8 Excavator 708-2K-03560 Hydraulic Main Overflow Valve for PC850-8 PC2000-8 Excavator
708-2K-03560 Hydraulic Main Overflow Valve for PC850-8 PC2000-8 Excavator

Protect your heavy mining equipment's main hydraulic pump with our premium brand-new Main Overflow Valve. Engineered as a direct drop-in replacement for part number 708-2K-03560, it ensures flawless pressure regulation and prevents catastrophic system over-pressurization in extreme mining and quarry conditions.

Learn More
723-40-93600 Hydraulic Main Overflow Valve for PC200-8 PC220-8 Excavator 723-40-93600 Hydraulic Main Overflow Valve for PC200-8 PC220-8 Excavator
723-40-93600 Hydraulic Main Overflow Valve for PC200-8 PC220-8 Excavator

Restore your excavator's maximum digging force and protect the main pump with our premium brand-new Main Overflow Valve (Relief Valve). Engineered to integrate flawlessly into your -8 series Main Control Valve (replacing part 723-40-93600), it ensures precise maximum system pressure regulation.

Learn More
723-40-56302 Hydraulic Unloading Valve for PC200-6 PC220-6 Excavator 723-40-56302 Hydraulic Unloading Valve for PC200-6 PC220-6 Excavator
723-40-56302 Hydraulic Unloading Valve for PC200-6 PC220-6 Excavator

Eliminate excess hydraulic heat and engine strain on your classic mid-sized excavator with our premium brand-new Unloading Valve. Engineered to integrate flawlessly into your -5 and -6 series Main Control Valve (replacing part 723-40-56302), it ensures efficient pump flow diversion to the tank when your joysticks are in the neutral position.

Learn More
723-40-60101 Hydraulic LS Selector Valve for PC200-6 PC220-6 Excavator 723-40-60101 Hydraulic LS Selector Valve for PC200-6 PC220-6 Excavator
723-40-60101 Hydraulic LS Selector Valve for PC200-6 PC220-6 Excavator

Eliminate sluggish joystick feedback and restore perfect hydraulic signal processing with our premium brand-new LS (Load Sensing) Selector Valve. Engineered to replace part 723-40-60101, it ensures accurate pressure signal transmission for smooth, predictable operation in your classic -6 series mid-sized excavators.

Learn More
723-30-60101 Hydraulic LS Selector Valve for PC60-7 PC78US-7 Excavato 723-30-60101 Hydraulic LS Selector Valve for PC60-7 PC78US-7 Excavato
723-30-60101 Hydraulic LS Selector Valve for PC60-7 PC78US-7 Excavato

Eliminate sloppy joystick feedback and restore perfect hydraulic signal processing with our premium brand-new LS (Load Sensing) Selector Valve. Engineered to replace part 723-30-60101, it ensures accurate pressure signal transmission for smooth, predictable operation in compact and midi excavators.

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723-46-40601 Pressure Compensation Valve for PC200-8 PC300-8 PC400-7 Excavator 723-46-40601 Pressure Compensation Valve for PC200-8 PC300-8 PC400-7 Excavator
723-46-40601 Pressure Compensation Valve for PC200-8 PC300-8 PC400-7 Excavator

Eliminate jerky multi-function movements and restore perfect load-independent flow control with our premium brand-new Pressure Compensation Valve. Engineered to perfectly integrate with your excavator's Main Control Valve (replacing part 723-46-40601), it ensures smooth and predictable hydraulic operation under varying loads.

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Hydraulic Main Control Valve Stem for PC200-8 PC400-7 PC800-8 Excavator Hydraulic Main Control Valve Stem for PC200-8 PC400-7 PC800-8 Excavator
Hydraulic Main Control Valve Stem for PC200-8 PC400-7 PC800-8 Excavator

Eliminate sloppy hydraulic response and internal fluid bypass with our premium brand-new Main Control Valve Stem. Precision-engineered for PC Series heavy machinery (including excavators, dozers, and loaders), this critical spool ensures exact fluid distribution to your cylinders and motors.

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Replacement PC Valve Servo Piston 708-2L-00643 708-2L-06640 Assembly Replacement PC Valve Servo Piston 708-2L-00643 708-2L-06640 Assembly
Replacement PC Valve Servo Piston 708-2L-00643 708-2L-06640 Assembly

Restore your heavy excavator's hydraulic efficiency with our premium brand-new PC Valve Servo Piston Assembly. Engineered as a direct drop-in replacement for part number 708-2L-00643, it resolves sluggish controls, poor displacement, and engine bogging instantly.

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21N-60-34100 Travel Motor for PC1250-8 Excavator 21N-60-34100 Travel Motor for PC1250-8 Excavator
21N-60-34100 Travel Motor for PC1250-8 Excavator

Support the steady mobility and track propulsion of your 110 to 150-ton class mining excavators with our new 21N-60-34100 Hydraulic Travel Motor. Designed to effectively manage high torque requirements in demanding open-pit mining and quarry environments.

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591826 Travel Motor Assembly for ZX200-3 Excavator 591826 Travel Motor Assembly for ZX200-3 Excavator
591826 Travel Motor Assembly for ZX200-3 Excavator

Support the steady mobility and reliable track propulsion of your 20-ton class medium crawler excavators with our new 591826 Hydraulic Travel Motor Assembly. Designed to effectively manage continuous torque requirements in versatile earthmoving and construction environments.

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472313 Travel Motor for ZX200-1 Excavator 472313 Travel Motor for ZX200-1 Excavator
472313 Travel Motor for ZX200-1 Excavator

Support the steady mobility and reliable track propulsion of your 20-ton class medium crawler excavators with our new 472313 Hydraulic Travel Motor Assembly. Designed to effectively manage continuous torque requirements in versatile earthmoving and construction environments.

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21N-60-34100 Travel Motor for PC1250-7 Excavator 21N-60-34100 Travel Motor for PC1250-7 Excavator
21N-60-34100 Travel Motor for PC1250-7 Excavator

Support the heavy-duty track propulsion and steady mobility of your 110 to 150-ton class mining excavators with our new 21N-60-34100 Hydraulic Travel Motor. Designed to effectively manage extreme torque requirements in demanding open-pit mining and quarry environments.

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12Y-27-30100 Final Drive for D51PX-24 Bulldozer 12Y-27-30100 Final Drive for D51PX-24 Bulldozer
12Y-27-30100 Final Drive for D51PX-24 Bulldozer

Support the heavy grading and earthmoving operations of your 13 to 14-ton class mid-size bulldozers with our new 12Y-27-30100 Final Drive Assembly. Designed to effectively manage increased torque requirements in demanding construction and land-clearing environments.

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Casting

Casting

With years of experience in the casting industry, we provide core casting solutions for your product manufacturing with our exquisite craftsmanship and rigorous quality control! Whether you are developing new products through casting, mass production with casting support, or developing customized castings, you can enjoy exclusive casting services throughout the entire process, helping your products seamlessly transition from design to mass production delivery. We boast a team of experienced casting engineers and a modern casting workshop, proficient in various casting processes such as sand casting, die casting, and precision casting. Our capabilities adapt to diverse material requirements, including cast iron, cast aluminum, cast copper, and stainless steel, perfectly matching the needs of multiple industries such as machinery manufacturing, automotive parts, construction machinery, hardware tools, and medical devices. From product drawing analysis and casting process optimization to mold making, casting, subsequent processing, and quality inspection, every step strictly adheres to international casting standards, ensuring high precision, sufficient strength, and stable performance of castings, effectively enhancing the core competitiveness of our products. We offer dedicated one-on-one service throughout the entire process, responding promptly to your needs and accelerating project progress, so you don’t need to worry about technical barriers or production delays. Professional mold making services – choosing us means choosing an efficient, reliable, and worry-free partner to help your products quickly capture the market.

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About Us

Guangzhou Yiyan Machinery Equipment Co., LTD

We have our own R&D and production team that supports small batch customization and sample processing related to hydraulic maintenance. We also provide online after-sales guidance to ensure quality and accessory compatibility, fully meeting various needs of hydraulic equipment.

  • Over 20 years of experience
  • Factory direct sales
  • OEM&ODM
  • Independently developed and produced
  • Small-batch customization
  • Hydraulic maintenance
  • Sample processing
  • Provide online after-sales guidance
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+86 13631358508

20+

Years of experience

3000

Square-meter automated factory

100+

The country the customer is from

90%

Repurchase rate exceeds

10000+

Case database

99.8%

A pass rate

0.003mm

Numerical control machining

7 Signs Your Excavator Hydraulic Pump Is Failing
27 , July

7 Signs Your Excavator Hydraulic Pump Is Failing

Spot excavator hydraulic pump failure early, compare symptoms, troubleshoot pressure loss, and decide when pump replacement is safer than repair for machinery.
Beyond the Part Number The Smart Buyer’s Guide to Hydraulic Motor Selection
20 , July

Beyond the Part Number: The Smart Buyer’s Guide to Hydraulic Motor Selection

See how hydraulic motors turn pressure and flow into torque, compare motor types, select the right unit, and assess suppliers for heavy equipment applications.
The Ultimate Guide to Hydraulic Pumps: Types, Design, and Efficiency.
15 , July

The Ultimate Guide to Hydraulic Pumps: Types, Design, and Efficiency

Explore the ultimate guide to hydraulic pumps covering types, design principles, efficiency optimization, and performance reliability for industrial applications.
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