387-9433 Cat C9 Fuel Injector Nozzle For 330d 336d 340d Excavator Engine

Product Details

Product Overview

This is a high-quality 387-9433 Fuel Injector Nozzle, specifically designed for the Caterpillar C9 diesel engine. It is a direct replacement component commonly utilized in heavy-duty excavator models including the Cat 330d, 336d, and 340d. This injector nozzle is a critical fuel system component responsible for precise fuel atomization into the combustion chamber, directly impacting engine performance, fuel efficiency, and emissions control.

Manufactured to meet stringent quality standards, this 387-9433 nozzle is a 100% new part, ensuring reliable operation and a direct fit for your machinery. It is suitable for both maintenance and overhaul applications, helping to restore engine power and reduce operational downtime. Please verify your engine model and part number to ensure compatibility.

Key Features & Benefits

• Precision Fuel Delivery: Engineered for exact fuel metering and atomization, optimizing combustion efficiency for maximum power output and reduced fuel consumption.
• Direct OEM Replacement: This part number 387-9433 is a direct cross-reference to the original Caterpillar specification, ensuring a seamless installation without modifications.
• 100% New Construction: Supplied as a brand-new unit, free from any prior wear or contamination, guaranteeing zero-hour performance and extended service life.
• Restored Engine Performance: Replaces worn or clogged injector nozzles to eliminate issues like rough idling, black smoke, hard starting, and loss of power in your 330d, 336d, or 340d excavator.
• Rigorous Quality Control: Each nozzle is manufactured under strict quality management systems, focusing on dimensional accuracy and material integrity for reliable operation under high pressure.
• Cost-Effective Solution: Provides a high-quality alternative to genuine OEM parts without compromising on performance, offering excellent value for fleet maintenance budgets.

Technical Specifications

OEM Cross-Reference

This product is a direct replacement for the following original equipment manufacturer part numbers:

• Caterpillar OEM: 387-9433

Note: While the primary cross-reference is 387-9433, this nozzle is designed to meet the exact specifications of the Cat C9 fuel system. Always verify your original part number for compatibility.

Compatibility

This fuel injector nozzle is commonly used for the following machinery and engine applications:

• Engine: Caterpillar C9 (Diesel)
• Excavator Models: Cat 330d, Cat 336d, Cat 340d

Important: Fitment is inferred based on the OEM application. Please confirm your specific engine serial number and existing part number before purchase to ensure a precise match.

Global Supply & Distribution

We maintain a robust global supply chain to serve international B2B buyers efficiently. Our inventory is strategically located to ensure fast and reliable shipping to major industrial markets worldwide.

• Major Markets: North America, Europe (EU), Asia-Pacific, Middle East (GCC), South America, and Africa.
• Shipping: We offer express courier (DHL, FedEx, UPS) for urgent orders and sea freight for bulk shipments to major ports like Rotterdam, Los Angeles, Shanghai, and Jebel Ali.
• Export Compliance: All shipments are handled with full customs documentation and compliance with international trade regulations.

Quality Assurance

We are committed to delivering high-quality parts that meet the demands of heavy-duty applications. Our quality assurance process includes:

• Manufacturing Standards: Parts are produced in ISO-certified facilities, following strict tolerances for fuel system components.
• Warranty: This product is backed by a 3-month warranty against manufacturing defects, providing peace of mind for your purchase.
• Post-Warranty Service: We provide online technical support to assist with installation and troubleshooting after the warranty period.

FAQ

1. How do I know if this 387-9433 nozzle fits my Cat 336d excavator?

This nozzle is designed for the C9 engine which powers the 336d. However, to guarantee fitment, you should locate the existing part number on your current injector nozzle. If it reads “387-9433”, it is a direct replacement. You can also cross-reference your engine serial number with Cat parts diagrams to confirm compatibility.

2. What are the common symptoms of a bad injector nozzle on a C9 engine?

Common symptoms include excessive black smoke from the exhaust, a noticeable drop in engine power, rough idling or misfiring, increased fuel consumption, and hard starting. Replacing a faulty nozzle with this 387-9433 part can resolve these issues and restore normal engine operation.

3. Can I install this injector nozzle myself, or should I hire a professional?

While the nozzle itself is a mechanical component, fuel system work requires a clean environment and careful handling to prevent contamination. We strongly recommend installation by a qualified diesel mechanic or technician who has the proper tools to clean the injector bore and torque the nozzle to the correct specification. Improper installation can lead to leaks or engine damage.