Product Overview

This high-performance, remanufactured Common Rail Fuel Injector Nozzle is engineered for Caterpillar C9 diesel engines, specifically powering the 330D and 336D excavator models. As a leading global supplier of heavy-duty engine components, we provide reliable parts for major construction and industrial markets worldwide, including North America, Europe, the Middle East, and Asia-Pacific. This injector is a critical component for restoring optimal fuel delivery, engine power, and emission control.

Key Features & Benefits

• Precision Remanufacturing: Each nozzle undergoes a complete remanufacturing process to restore OEM specifications, ensuring precise fuel atomization and spray pattern for maximum combustion efficiency.
• High-Speed Steel Construction: Manufactured from premium high-speed steel for exceptional durability and resistance to the extreme pressures and temperatures within the common rail system.
• 100% Professional Testing: Every unit is rigorously tested on professional equipment to verify flow rate, leak integrity, and pop pressure, guaranteeing performance that matches or exceeds original standards.
• Enhanced Engine Performance: Directly improves fuel economy, reduces exhaust smoke, and restores lost horsepower by delivering the correct fuel volume at the precise moment.
• Cost-Effective Reliability: Offers a significant cost advantage over new OEM parts while providing reliable performance backed by a solid warranty, minimizing equipment downtime.

Technical Specifications

OEM Cross-Reference

This injector nozzle is a direct replacement for the following OEM and alternative part numbers. Ensure compatibility by cross-referencing with your original part.

• 387-9434 (Primary Model Number)
• 3879434
• 387-9433 (Primary OE Number)
• 3879433 (OE NO.)
• 387-9432
• 3879432

Compatibility

This fuel injector nozzle is designed for Caterpillar C9 diesel engines. Common applications include, but may not be limited to:

• Excavators: Caterpillar 330D, Caterpillar 336D
• Engine Model: Caterpillar C9 ACERT

Note: Always verify the specific part number from your original equipment or consult with your mechanic to ensure correct fitment for your engine serial number range.

Global Supply & Distribution

We specialize in the international export of heavy machinery parts, serving a global network of distributors, workshops, and fleet operators. Our streamlined logistics ensure fast and reliable delivery to major industrial hubs and ports worldwide.

• Primary Markets: North America (USA, Canada), European Union, United Kingdom, Australia, Middle East (UAE, Saudi Arabia), and Southeast Asia.
• Efficient Logistics: We utilize established air and sea freight partners for timely delivery to key destinations like Rotterdam, Los Angeles, Singapore, and Dubai.
• Export Expertise: All shipments are professionally handled with complete commercial invoices, packing lists, and compliance with international trade regulations for a smooth customs clearance process.

Quality Assurance

Our commitment to quality ensures you receive a part you can trust for critical engine applications.

• Manufacturing Standard: Parts are remanufactured in a certified facility using advanced machining and calibration tools to meet strict tolerances.
• Comprehensive Testing: Each injector nozzle is subjected to a 100% professional test cycle, including hydraulic leak testing, pop pressure verification, and flow matching.
• Warranty Coverage: This product is protected by a 6-month warranty against manufacturing defects, providing peace of mind and support for your business.

FAQ

Q: How do I know if this injector nozzle will fit my Caterpillar 330D excavator?
A: The primary fitment is for Caterpillar C9 engines in 330D and 336D models. The most reliable method is to match the part number stamped on your original injector nozzle with the numbers listed in the “OEM Cross-Reference” section above (e.g., 387-9433, 3879434). If unsure, provide your engine serial number for confirmation.

Q: Is this a new or remanufactured part, and what does “remanufactured” entail?
A: This is a professionally remanufactured part. The core is completely disassembled, cleaned, and inspected. Worn or damaged components are replaced with new ones, critical surfaces are machined to specification, and the unit is reassembled and calibrated to perform like new. This process offers OEM-level reliability at a reduced cost and is environmentally sustainable.

Q: What is included with the injector nozzle, and are installation instructions provided?
A> The injector nozzle is supplied as a single item, packaged securely for international shipping. While basic installation guidelines can be provided, we strongly recommend installation by a qualified diesel technician. Proper installation, including torque specifications and sealing, is crucial for performance and to avoid damage to the new nozzle or the engine’s fuel system.