Product Details
Product Overview
Upgrade your Caterpillar excavator’s performance with our premium C9 HEUI fuel injector, available in part numbers 254-4330, 254-4339, and 254-4340. Designed for the demanding C9 diesel engine, this injector ensures precise fuel delivery, enhanced combustion efficiency, and reduced emissions. We serve a global clientele, with major markets in North America, Europe, Southeast Asia, and the Middle East, providing fast shipping to industrial hubs like Houston, Rotterdam, Dubai, and Singapore.
Key Features & Benefits
- Precision Engineering: High-pressure HEUI (Hydraulically actuated Electronic Unit Injection) technology for optimal fuel atomization and engine performance.
- Durable Construction: Made from high-grade steel to withstand extreme temperatures and pressures, ensuring long service life.
- OEM Quality: Manufactured to meet or exceed original Caterpillar specifications for seamless replacement and repair.
- Improved Efficiency: Reduces fuel consumption and lowers exhaust emissions, contributing to cleaner operation.
- Rigorous Testing: Each injector is pressure-tested and calibrated to guarantee consistent performance out of the box.
Technical Specifications
| Specification | Details |
|---|---|
| Part Numbers | 254-4330, 254-4339, 254-4340 |
| OEM Numbers | 254-4330, 254-4339, 254-4340 |
| Model Number | 254-4330 / 254-4339 / 254-4340 |
| Engine Type | Caterpillar C9 Diesel Engine |
| Fuel Type | Diesel |
| Material | High-Grade Steel |
| Condition | New |
| Quality | Excellent |
| Warranty | 4 Months |
| Package Size | 25 x 15 x 15 cm |
| Gross Weight | 2.0 kg |
OEM Cross-Reference
This fuel injector is a direct replacement for the following OEM and cross-reference numbers:
- OEM Caterpillar: 254-4330, 254-4339, 254-4340
- Alternative Numbers: Suitable for all C9 engine variants using these HEUI injectors.
Note: Always verify your existing part number before ordering to ensure compatibility. These injectors are often used interchangeably in Caterpillar C9 applications.
Compatibility
- Engine Models: Caterpillar C9 (Diesel)
- Vehicle/Equipment Applications:
- Caterpillar Excavators (e.g., 320D, 323D, 325D, 330D with C9 engines)
- Caterpillar Wheel Loaders (e.g., 938H, 950H)
- Other heavy equipment powered by the C9 diesel engine
- Year Range: Compatible with C9 engine models produced from the early 2000s onward. Check your engine serial number for exact fitment.
Global Supply & Distribution
We are a leading supplier of diesel engine parts with a robust global logistics network. Our capabilities include:
- Worldwide Shipping: Fast and reliable delivery via DHL, UPS, FedEx, EMS, and TNT to over 100 countries.
- Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands), Asia-Pacific (China, Australia, Japan), Middle East (UAE, Saudi Arabia), and Africa (South Africa, Nigeria).
- Fast Delivery: Orders processed within 3-7 working days, with express shipping to major ports and industrial centers.
- Trade Compliance: Experienced in international trade, supporting secure payments via TT, Western Union, PayPal, and Trade Assurance.
Quality Assurance
- Manufacturing Standards: Produced in ISO-certified facilities in Shandong, China, adhering to strict quality control processes.
- Testing: Each injector undergoes individual pressure and flow testing before packaging to ensure zero defects.
- Warranty: Backed by a 4-month warranty against manufacturing defects, giving you peace of mind for your heavy equipment.
FAQ
Q1: Will this injector fit my Caterpillar 320D excavator with a C9 engine?
A: Yes, this injector (254-4330/4339/4340) is a direct replacement for the C9 engine used in Caterpillar 320D, 323D, and similar excavator models. We recommend checking your current injector part number to confirm exact compatibility.
Q2: What is the installation process for this HEUI injector?
A: Installation should be performed by a qualified technician. Ensure the engine is cool, clean the injector bore, replace O-rings and copper washers (not included), and torque to Caterpillar specifications. After installation, the engine may need to be primed to remove air from the fuel system.
Q3: How do I maintain these injectors for optimal performance?
A: Use high-quality diesel fuel and replace fuel filters regularly. Contaminated fuel is the primary cause of injector failure. For C9 engines, we recommend periodic injector coding or calibration using diagnostic software to maintain peak efficiency and prevent drivability issues.
Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.
2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.
3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.
4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.
5. Scientific ERP system, easy and fast to locate the parts that customer needs.
6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.
Exhibition

Packing&Shipping

1. Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).
2. Once we get confirmation of payment, we will ship products in 2 days.
3. Our packaging is standard export wooden box or others as your requirement.
4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ
Q1. What is your company major products?
A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.
Q2.What is the MOQ?
A: Normally we can supply any quantity if we have in stock.
Q3. What is your payment term ?
A: We accept Western Union, T/T, Paypal.
Q4. What is the packing ?
A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.
Q5. When can you deliver products after payment ?
A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .
Q6. What can you do to complete order perfectly ?
A: In the beginning , We will communicate with clients in details to understand what they need .
Before packing , We will check the products and send photos to clients .After confirmation ,
We will packing products well to avoid damage . Once we get tracking number ,
We will send it to customer and keep contact in with clients .
FAQ
Common Product Inquiry Questions
How can I confirm this part matches my engine or injector model?
Send the OEM number, engine model, application, or clear product photos. We will help verify the suitable part before quotation.
Can I ask for packing, shipping, and delivery details together?
Yes. You can combine product confirmation, quantity, destination, packing request, and shipment method in one inquiry so the quotation is more complete.
Why is price not displayed on the page?
This catalog is built for B2B inquiry. Final pricing depends on the confirmed part number, quantity, stock situation, and shipping destination.
What information helps you quote faster?
Please include the OEM number, engine model, quantity, destination country, and any packing or shipping preference. This usually speeds up matching and quotation.
Inquiry Desk
Send Product Inquiry
Use this form to ask for fitment, MOQ, delivery time, packing, and shipping support for this product.
- Simple inquiry flow with direct sales follow-up.
- Send OEM number, quantity, or destination in the optional message if available.
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Quick Inquiry
Caterpillar C9 Diesel Fuel Injector 254-4330 254-4339 254-4340 for Excavator Engine
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Inquiry Desk
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Quick contact for this product. OEM number is attached automatically.
- Simple inquiry flow with direct sales follow-up.
- Send OEM number, quantity, or destination in the optional message if available.
- Every submission is stored in WordPress and sent to your admin email.