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Precision Diesel Fuel Injection Components

Nantong Baiyuan Fuel Injection System Co., Ltd – Trusted manufacturer of common rail control valves, injectors, nozzles, and repair kits for Bosch, Delphi, Denso, CAT, Cummins, and Siemens systems since 1963.

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About BAIYUAN

Since its establishment, Nantong BAIYUAN Fuel Injection System Co., Ltd. has built a legacy of over 60 years in the diesel fuel injection industry. Originally focused on core components such as injectors, plungers, and valve couplers, the company transitioned after privatization in 2003 to specialize in advanced common rail fuel injection systems.

With 15+ years of dedicated R&D and production, BAIYUAN has developed professional lines for BOSCH valve assemblies, DENSO valve plates, DELPHI control valves, Carter control valves, injector assemblies, piston cooling nozzles, and more. Our annual production capacity exceeds 3 million units.

Top 10 Diesel Fuel Injection Manufacturer in China
Factory Production Line Control Valve Nozzle

Our Products

High-precision diesel fuel injection components engineered for reliability, performance, and compatibility with major OEM systems.

G374 Nozzle

G374 Nozzle

High Pressure Spray Nozzle

  • Type: Common Rail Injector Nozzle
  • Application: High-pressure fuel injection
  • Origin: Jiangsu, China
625C 9308Z625C

625C 9308Z625C

Control Valve

  • Series: Compatible with Delphi systems
  • Function: Precision fuel flow regulation
  • Origin: Jiangsu, China
F 00R J02 056

F 00R J02 056

Control Valve

  • Series: Bosch 0445 110
  • Warranty: 6 months
  • Origin: Jiangsu, China
F 00V C01 502

F 00V C01 502

Control Valve

  • Series: 0445 110
  • Warranty: 6 months
  • Origin: Jiangsu, China
G4S008 Nozzle

G4S008 Nozzle

For Injector 23670-09430

  • Compatibility: 23670-09430 / OE020
  • Type: Common rail oil injection nozzle
  • Origin: Jiangsu, China
CAT C7/C9 Injector Set

CAT C7 & C9 HEUI Injector Set

Complete Assembly

  • Application: Caterpillar Engines
  • Part No.: 235-2888
  • Origin: Jiangsu, China
Spool Valve

Spool Valve

C7/C9 Series

  • Part No.: C7/C9
  • Color: Silver
  • Size: Standard OEM
Control Valve for Bosch

Control Valve for Bosch

Precision Engineered

  • Compatibility: Bosch Common Rail Systems
  • Function: Fuel pressure regulation
  • Origin: Jiangsu, China
Control Valve for Denso

Control Valve for Denso

Valve Plate Compatible

  • Series: Denso Common Rail
  • Application: High-precision control
  • Origin: Jiangsu, China
Control Valve for Delphi

Control Valve for Delphi

OEM Replacement

  • Compatibility: Delphi Systems
  • Function: Flow control & pressure management
  • Origin: Jiangsu, China
Control Valve for CAT

Control Valve for CAT

Heavy-Duty Application

  • Application: Caterpillar Engines
  • Robust Design: For high-stress environments
  • Origin: Jiangsu, China
Repair Kit

Repair Kit

Complete Maintenance Set

  • Includes: Seals, washers, O-rings, spacers
  • Compatibility: Multiple injector models
  • Origin: Jiangsu, China

Why Choose BAIYUAN?

Decades of engineering excellence, innovation, and customer-focused service.

60+ Years Legacy

Established in 1963, with over six decades of expertise in fuel injection systems.

15+ Years R&D

Dedicated research in common rail technology since 2003 for superior performance.

3M Annual Output

High-capacity production lines ensure reliable supply and fast delivery.

10+ Patents

Innovative designs protected by intellectual property for quality assurance.

Company Highlights

1963
Founded
300+
Employees
20,000m²
Factory Area
2000+
Products
24/7
Support

Frequently Asked Questions

What types of control valves do you manufacture?

We produce control valves compatible with major OEM systems including Bosch, Delphi, Denso, CAT, Cummins, and Siemens. Our product lines cover common rail valve assemblies, valve plates, spool valves, and piezoelectric valves.

Are your products OEM replacements?

Yes, all our components are engineered to meet or exceed OEM specifications for fit, form, and function, ensuring seamless integration into existing fuel injection systems.

What is your warranty policy?

Most products come with a 6-month warranty covering manufacturing defects. Warranty terms may vary by product line and application.

Do you offer custom manufacturing?

Yes, we support OEM/ODM services and can develop custom fuel injection components based on technical drawings and specifications.

Where is your factory located?

Our manufacturing facility is located in Nantong City, Jiangsu Province, China.

Get in Touch

For inquiries, product support, or partnership opportunities, please visit our official website.

Address

Room 603 Huangyue Trade Center, Wenchang Road, Tongzhou District, Nantong City, Jiangsu Province, China

WhatsApp

+8613815228201
+8615250689261

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