Product Overview

This high-precision Common Rail Fuel Injector is a direct replacement for Weichai and JAC diesel engine applications. Engineered for modern common rail systems, it ensures optimal fuel atomization, improved combustion efficiency, and reduced emissions. As a trusted supplier from Shandong, China, we ship globally to markets including North America, Europe, Southeast Asia, the Middle East, and South America, supporting heavy-duty commercial vehicles and industrial equipment.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications for seamless fitment and reliable performance.
• Durable Construction: Made from high-grade stainless steel to withstand extreme fuel pressures and temperatures.
• Enhanced Fuel Economy: Optimized spray pattern ensures complete fuel combustion, reducing consumption and operational costs.
• 100% Tested: Every injector undergoes rigorous pressure and flow testing to guarantee professional-grade quality.
• Low Emissions: Meets stringent environmental standards by minimizing unburned fuel and particulate matter.

Technical Specifications

OEM Cross-Reference

This injector is a direct replacement for the following OEM and reference numbers:

• Bosch OEM: 0445120391, 0445120265, 0445120266
• OEM Alternative: 612630090055
• Application: Designed for Weichai and JAC diesel engines using Bosch common rail systems.

Compatibility

• Engine Models: Fits Weichai WD series and JAC HFC series diesel engines.
• Vehicle Applications: Heavy-duty trucks, buses, construction machinery, and agricultural equipment.
• Year Range: Compatible with models manufactured from 2000 onwards.
• System Type: Bosch Common Rail (CR) fuel injection systems.

Global Supply & Distribution

• Worldwide Shipping: We offer reliable logistics solutions for international buyers, including air, sea, and express delivery.
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy), Asia-Pacific (Australia, Japan, Korea, India), Middle East (UAE, Saudi Arabia, Qatar), and Africa.
• Fast Delivery: Efficient handling to major ports (Shanghai, Qingdao, Ningbo) and industrial hubs worldwide.
• Export Compliance: Experienced in international trade documentation and customs clearance for seamless transactions.

Quality Assurance

• Certifications: Manufactured under ISO 9001:2000 and TS 16949 quality management systems.
• Testing: Each injector is 100% tested for pressure, spray pattern, and flow rate before shipment.
• Warranty: Backed by a 6-month warranty against manufacturing defects.
• Materials: Constructed from premium stainless steel for corrosion resistance and long service life.

FAQ

Q1: Is this injector a direct bolt-on replacement for my Weichai engine?
A: Yes, part number 0445120391 is an OEM-spec injector designed for direct replacement. It matches the original mounting dimensions, electrical connections, and fuel pressure requirements for Weichai and JAC engines using Bosch common rail systems. We recommend verifying your engine code and injector part number before purchase.

Q2: What maintenance is recommended after installing this injector?
A: After installation, ensure the fuel system is free of contaminants. It is advisable to replace the fuel filter and clean the fuel lines. Run the engine and check for leaks. For optimal performance, have the injector coding (if required by your ECU) performed by a qualified technician using a diagnostic tool.

Q3: Can I use this injector with biodiesel or high-sulfur diesel fuel?
A: This injector is designed for standard diesel fuel. While it can tolerate up to B5 (5% biodiesel blend) and low-sulfur diesel, prolonged use with high-sulfur fuel (>500 ppm) or high-concentration biodiesel may reduce the lifespan of internal components. For alternative fuels, please consult our technical team for guidance.