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Premium Excavator Hydraulic Components Manufacturer

High-quality excavator solenoid valves, control valves, sensors, and hydraulic parts from Guangzhou Zhengbang Machinery Parts Industry & Trade Co., Ltd. Trusted by global construction and mining equipment operators.

Excavator Hydraulic Valve
OEM Quality
Global Shipping

Who We Are

Guangzhou Zhengbang Machinery Parts Industry & Trade Co., Ltd. is a leading manufacturer and exporter of high-performance excavator hydraulic components based in China. With years of engineering expertise, we specialize in solenoid valves, control valves, pilot valves, sensors, throttle motors, and other critical hydraulic parts.

Our products are designed to meet or exceed OEM specifications and are compatible with major brands including CAT, Komatsu, Hitachi, Doosan, Hyundai, XCMG, and more. We serve customers across Europe, North America, South America, Africa, and Asia.

500+
Weekly Output
60+
Countries Served
Factory Interior Quality Inspection Packaging Line Engineer Testing

Our Product Range

High-quality excavator hydraulic and electrical components engineered for durability, precision, and performance in extreme conditions.

Excavator Solenoid Valve

111-9916 Solenoid Valve

For CAT 320B/320C/E320C/E320D

  • • OEM: 111-9916 KDRDE5K-50/4C30-146
  • • High-pressure resistance
  • • Direct replacement
Control Valve

Oil Return 2.5kg Valve

Model: YN21V00013F1

  • • For Kobelco Excavators
  • • Standard check valve
  • • 2.5kg return pressure
Pilot Valve

Hydraulic Pilot Valve

723-40-71900 for PC200-7/8

  • • Komatsu compatible
  • • Interchange: 7234071900
  • • Precision flow control
Engine Stop Solenoid

24V Stop Solenoid Valve

Model: 3864274 for R225-7

  • • DC Voltage: 24V
  • • Cummins 6BT5.9 compatible
  • • Parking solenoid function
Throttle Motor

XCMG Throttle Actuator

Model: 803608815

  • • Electronic control motor
  • • Smooth RPM regulation
  • • OEM replacement
Fuel Pump

Hitachi 6HK1 Fuel Pump

YA00068071 for ZX330-5A

  • • High-pressure diesel pump
  • • Precise fuel delivery
  • • Durable cast housing
Solenoid Coil

24V Solenoid Valve Coil

Universal 24VDC Type

  • • High-temperature insulation
  • • Corrosion-resistant coating
  • • Long service life
Fan Clutch Assembly

R485-9 Fan Clutch

For C6.6 Engine

  • • Model: 324-0123
  • • For 320D Excavator
  • • Thermal auto engagement
Oil Level Sensor

Komatsu Oil Sensor

7861-91-4210

  • • Excavator spare part
  • • Accurate level detection
  • • Sealed for harsh environments
Pressure Sensor

Oil Pressure Sensor

107-0614 for CAT

  • • Electric parts category
  • • Real-time monitoring
  • • Durable brass housing
Control Valve Assembly

VOE14673207 Valve

For EC210/240/290

  • • Complete assembly
  • • High-flow design
  • • Precision spool control
Relief Valve

Main Relief Valve

Pressure Reducing Type

  • • Protects hydraulic system
  • • Adjustable pressure setting
  • • For heavy-duty applications

Why Choose Us?

Engineered for reliability, precision, and long-term performance

OEM Quality

All parts meet or exceed original equipment manufacturer specifications for fit, form, and function.

Fast Delivery

Efficient logistics network ensures prompt shipping to over 60 countries with tracking support.

Wide Compatibility

Parts designed for CAT, Komatsu, Hitachi, Doosan, XCMG, Hyundai, and other major excavator brands.

Durable Materials

High-grade steel, brass, and reinforced polymers ensure longevity in harsh operating environments.

150+
Product Models
500+
Units/Week
60+
Countries
10+
Years Experience

Frequently Asked Questions

Everything you need to know about our excavator components

Are your parts compatible with OEM specifications?

Yes, all our excavator solenoid valves, control valves, and hydraulic components are engineered to meet or exceed original equipment manufacturer (OEM) standards for fit, form, and function.

What brands do you support?

We manufacture parts compatible with CAT, Komatsu, Hitachi, Doosan, Hyundai, XCMG, Liugong, and other major excavator brands. Please provide your model number for exact compatibility.

Do you offer bulk pricing for large orders?

Yes, we provide competitive pricing for wholesale and bulk purchases. Contact us with your requirements for a customized quote.

What is your production capacity?

Our factory has a weekly production capacity of over 500 units across various product lines, ensuring fast turnaround for both small and large orders.

How do you ensure quality control?

We implement strict quality control procedures including material inspection, in-process testing, and final product validation to ensure reliability and performance.

Can you manufacture custom parts?

Yes, we accept OEM/ODM orders and can develop custom hydraulic components based on your specifications, samples, or drawings.

Get In Touch

For product inquiries, quotes, or technical support, please visit our official website to contact the team directly.

Visit Official Website to Contact

We respond to all inquiries promptly. Please include your excavator model, part number, and quantity needed.

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