Product Details
Product Overview
This is a high-performance, new Common Rail bullet-type diesel fuel injector nozzle designed as a direct replacement for Caterpillar heavy-duty engines. Manufactured to exacting standards in Shandong, China, a global hub for diesel engine components, this part is supplied to B2B clients worldwide, including major markets in North America, Europe, the Middle East, and Asia-Pacific. It is engineered for reliable operation in demanding industrial and vehicular applications.
Key Features & Benefits
- Precision Engineered: Manufactured from High-Speed Steel for superior wear resistance and long service life under high-pressure conditions.
- Optimal Fuel Atomization: The bullet nozzle design ensures precise fuel spray patterns for efficient combustion, improved engine performance, and reduced emissions.
- Direct OEM Replacement: Designed as a 1:1 functional equivalent to original parts, ensuring perfect fitment and seamless integration into existing fuel systems.
- Enhanced Durability: Built to withstand the high pressures of common rail systems, providing reliable operation and reducing downtime for repair and maintenance.
- Global Compliance Ready: Packed in export-standard packaging, ensuring safe international shipment and handling.
Technical Specifications
| Specification | Detail |
|---|---|
| Primary Part Number | 8M1584 |
| Product Name | Common Rail Diesel Fuel Injector Nozzle (Bullet Type) |
| Condition | New |
| Material | High-Speed Steel |
| Fuel Type | Diesel |
| Purpose | Replacement / Repair |
| Universal Fitment | Yes (For specified models) |
| Packing | Exported Standard Packing |
| Single Package Dimensions | 10 x 10 x 10 cm |
| Single Gross Weight | 0.200 kg |
| Minimum Order Quantity (MOQ) | 6 pieces |
| Selling Units | Single item |
OEM Cross-Reference
This injector nozzle is compatible with multiple OEM part numbers, ensuring broad application coverage. Key reference numbers include:
- 8M1584 (Primary Model Number)
- 8N8796
- 7S9891
- 8N4694
- 5H7225
Always verify cross-references with your engine’s service manual or a qualified technician before purchase.
Compatibility
This diesel fuel injector nozzle is engineered for specific Caterpillar engine families, commonly found in heavy-duty trucks and industrial machinery.
- Primary Engine Models: Caterpillar 3304, Caterpillar 3406
- Application: Diesel engines for trucks and industrial equipment.
- Note: Compatibility is based on the OEM part number interchange. Ensure your engine’s specific injector part number matches one of the cross-references listed above.
Global Supply & Distribution
We specialize in the international B2B supply of critical engine components. Our logistics network ensures efficient delivery to key industrial regions worldwide.
- Worldwide Shipping: We export to North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands), Asia-Pacific (Australia, Japan, Southeast Asia), the Middle East, and South America.
- Fast Port Delivery: Prioritized shipping to major global ports such as Los Angeles, Rotterdam, Singapore, Dubai, and Sydney.
- Export Expertise: All documentation is handled professionally for smooth customs clearance, adhering to international trade regulations.
- Bulk & Wholesale Focus: Structured to support distributors, workshops, and fleet operators with volume requirements.
Quality Assurance
We are committed to supplying components that meet the performance demands of professional applications.
- Manufacturing Standards: Produced using precision CNC machinery and strict quality control protocols to ensure dimensional accuracy and performance consistency.
- Warranty: Backed by a 6-month warranty from the date of purchase, covering defects in material and workmanship.
- Testing: Components undergo rigorous testing for spray pattern, leak-off, and pop pressure to validate performance against OEM specifications.
FAQ
Q1: Is this injector nozzle a direct fit for my Caterpillar 3406 engine?
A1: Yes, this nozzle is designed as a direct replacement for engines using the OEM part numbers listed in the cross-reference section (e.g., 8M1584, 8N8796). Always confirm the specific part number removed from your engine for a perfect match.
Q2: What is the benefit of a “bullet” type nozzle design?
A2: The bullet nozzle design offers superior durability and a highly precise fuel spray pattern. This leads to more efficient combustion within the cylinder, which can improve engine power output, fuel economy, and reduce particulate emissions compared to some other nozzle designs.
Q3: Do you provide technical support for installation?
A3: While we supply the component, installation and calibration of fuel injectors are critical procedures that require specialized tools and expertise. We recommend that installation be performed by a certified diesel technician to ensure proper engine timing, fuel pressure settings, and overall system performance.
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 3304 3406 Diesel Fuel Injector Nozzle 8M1584 Common Rail Bullet Nozzle
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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.