Product Details
Product Overview
This high-quality Common Rail Diesel Fuel Injector is a direct replacement for Weichai WP10 engines, offering reliable performance for heavy-duty applications. Designed for global distribution, this injector is ideal for B2B buyers in North America, Europe, Asia-Pacific, the Middle East, and South America. With compatibility across multiple OEM numbers, it ensures seamless integration into existing engine systems for repair or replacement needs.
Key Features & Benefits
- Precision Engineering: Manufactured from high-speed steel for durability and resistance to wear in demanding diesel environments.
- Universal Fitment: Designed for easy replacement on Weichai WP10 and compatible engine models, reducing downtime.
- Enhanced Fuel Efficiency: Common rail technology optimizes fuel injection for better combustion and lower emissions.
- Long Service Life: Built to meet OEM standards, ensuring consistent performance over extended periods.
- Cost-Effective Solution: New condition with a 1-year warranty, providing a reliable alternative to expensive dealer parts.
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 0445120367, 0445120391, 0445120084 |
| OEM Number | 5283840, 4045969 |
| Fuel Type | Diesel |
| Condition | New |
| Material | High Speed Steel |
| Weight | 0.7 kg per piece |
| Size | Standard size |
| Engine Code | Diesel Engine |
| Car Model | Weichai WP10 |
| MOQ | 6 pieces |
| Warranty | 1 Year |
| Package Size | 20 x 15 x 10 cm |
| Gross Weight | 1.000 kg |
OEM Cross-Reference
This fuel injector is interchangeable with the following OEM and reference numbers:
- 0445120367
- 5283840
- 0445120391
- 4045969
- 0445120084
These numbers ensure compatibility with original Weichai and Bosch systems used in WP10 engines.
Compatibility
- Engine Models: Weichai WP10 series diesel engines
- Vehicle Applications: Heavy-duty trucks, construction machinery, and agricultural equipment using WP10 engines
- Year Ranges: Compatible with WP10 engines produced from 2005 onward (verify specific fitment with your engine serial number)
Global Supply & Distribution
We offer worldwide shipping with fast delivery to major ports and industrial centers, including:
- North America: Los Angeles, Houston, New York
- Europe: Rotterdam, Hamburg, Antwerp
- Asia-Pacific: Shanghai, Singapore, Sydney
- Middle East: Dubai, Jeddah
- South America: Santos, Buenos Aires
Our export experience ensures compliance with international trade regulations, and we support various payment terms including T/T and Western Union. Typical delivery time is within 7 days after order confirmation.
Quality Assurance
- Manufacturing Standards: Produced in ISO-certified facilities in Shandong, China, with strict quality control.
- Warranty: 1-year warranty against manufacturing defects.
- Testing: Each injector undergoes pressure and flow testing to ensure consistent fuel delivery and leak-free operation.
FAQ
Q1: Is this fuel injector a direct fit for my Weichai WP10 engine?
A1: Yes, this injector is designed as a direct replacement for Weichai WP10 engines using common rail systems. Verify your engine serial number and existing injector part numbers (e.g., 0445120367) to confirm compatibility. It is recommended to replace all injectors in a set for balanced performance.
Q2: What installation precautions should I take?
A2: Ensure the fuel system is clean and free of contaminants before installation. Use new sealing washers and torque the injector to manufacturer specifications (typically 30-35 Nm). After installation, bleed the fuel system to remove air and check for leaks. Professional installation is advised.
Q3: How should I maintain these injectors for long life?
A3: Use high-quality diesel fuel with proper filtration. Replace fuel filters regularly (every 10,000-15,000 km or as per engine manual). Avoid running the engine on low fuel, which can draw debris into the system. If injector performance degrades (e.g., rough idling, black smoke), have them tested and cleaned by a qualified technician.
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.
- Every submission is stored in WordPress and sent to your admin email.
Related Products
More Products In This Catalog
-
-
High Quality Diesel Fuel Injector Spring 2434614020 for Engine Models | High Speed Steel
MOQ: 1pcs
Price: Negotiable
-
High Speed Steel Diesel Fuel Injector Nozzle DN20PD32 150P068 for Common Rail Injection System
MOQ: 1pcs
Price: Negotiable
-
DENSO Diesel Fuel Injector Nozzle 093400-7680 DLLA146P768 for Hitachi Excavator Engine
MOQ: 1pcs
Price: Negotiable
Quick Inquiry
Weichai WP10 Common Rail Diesel Fuel Injector 0445120367 5283840 0445120391 4045969
Send one clear inquiry and we will reply with quotation, lead time, and fitment confirmation.
- OEM number is included automatically when available.
- Add quantity, destination, and packing needs for a faster quote.
Inquiry Form
Send Inquiry
Leave your email and phone / WhatsApp so sales can follow up directly.
Inquiry Desk
Send Inquiry
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.