Product Overview

This high-quality Common Rail Injector, featuring OEM number 0445120265 (also known as 0 445 120 265), is a premium replacement part designed specifically for Weichai WP12 engines and compatible with Jaw J4 Sei 3 applications. Manufactured in Shandong, China, this injector is built for the global B2B market, serving major industrial regions across North America, Europe, Asia-Pacific, the Middle East, and South America. We ensure fast, reliable shipping to major ports and industrial centers worldwide, supporting your heavy-duty diesel engine maintenance and repair operations.

Key Features & Benefits

• High-Quality Construction: Manufactured from premium steel with precision engineering to ensure durability and long service life in demanding diesel engine environments.
• Direct OE Replacement: Exact fit for Weichai WP12 engines, offering seamless replacement without modifications. Designed to meet or exceed original OEM specifications.
• Optimized Fuel Efficiency: Precision-machined nozzle and internal components ensure optimal fuel atomization, improving combustion efficiency and reducing fuel consumption.
• Enhanced Engine Performance: Delivers consistent fuel delivery under high pressure, supporting maximum power output and reducing emissions for compliant operation.
• Rigorous Testing: Each injector undergoes strict quality control and pressure testing to ensure reliable performance and zero defects before shipment.

Technical Specifications

OEM Cross-Reference

This injector is a direct cross-reference for the following OEM numbers:

• 0445120265 (Bosch / Common Rail Injector)
• 0 445 120 265 (Alternative Bosch Format)
• Suitable for Weichai WP12 engine series and Jaw J4 Sei 3 applications.

Compatibility

• Engine Models: Weichai WP12 (various sub-models including WP12.336E40, WP12.375E40, WP12.430E40, etc.)
• Vehicle Applications: Heavy-duty trucks, construction machinery, and industrial equipment powered by Weichai WP12 engines.
• Compatible Systems: Common Rail Diesel Fuel Injection Systems (Bosch CRIN technology).

Global Supply & Distribution

We are a trusted supplier to the international B2B market, offering:

• Worldwide Shipping: Reliable logistics to North America, Europe, Asia-Pacific, the Middle East, Africa, and South America.
• Fast Delivery: Efficient processing and shipping to major ports (e.g., Shanghai, Ningbo) and industrial hubs (e.g., Dubai, Rotterdam, Houston).
• Export Experience: We handle international trade compliance and documentation for smooth customs clearance.
• Volume Orders: Flexible MOQ of 6 pieces with bulk pricing available for larger orders.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities in Shandong, China, using advanced machining and quality control processes.
• Warranty: 4-month warranty against manufacturing defects, ensuring peace of mind for your operations.
• Testing: Each injector is pressure-tested and inspected for flow rate, sealing, and spray pattern to guarantee performance.

FAQ

Q1: Is this injector a direct replacement for my Weichai WP12 engine?
Yes, the 0445120265 injector is designed as a direct OE replacement for Weichai WP12 engines. It matches the original specifications and can be installed without modifications. Please verify your engine model and existing injector part number to ensure compatibility.

Q2: What is the installation procedure for this common rail injector?
Installation should be performed by a qualified diesel technician. Key steps include: (1) Depressurize the fuel system and disconnect the battery. (2) Remove the old injector carefully to avoid debris. (3) Clean the injector bore and install new copper washers/seals. (4) Torque the injector to manufacturer specifications (typically 60-80 Nm for WP12). (5) Reconnect fuel lines and perform a leak test. Always refer to the engine service manual for exact procedures.

Q3: How can I ensure the longevity of this injector?
To maximize service life, use high-quality diesel fuel and replace fuel filters regularly (every 10,000-15,000 km). Avoid running the engine on low fuel, which can introduce air into the system. Periodic injector cleaning and testing (every 100,000 km or as recommended) can prevent clogging and maintain optimal performance. Our warranty covers manufacturing defects, but proper maintenance is essential for durability.